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  • 02 2021-07
    The 2021 International Water Show was successfully held in Shanghai.
    The 2021 International Water Show was successfully held in Shanghai. Our company's products have won unanimous praise. Hollow Fiber Membrane Equipment,Hollow Fiber Membrane Mold,Hollow Fiber Membrane Spinneret,Hollow Fiber Nozzle and Hollow Fiber Spinneret Are all exhibited at the booth.
  • 18 2021-05
    POE ------High Molecular Polyolefin Elastomer
    Polyolefin thermoplastic elastomer is a high-performance polyolefin product that becomes rubber elastic at room temperature. It has the characteristics of low density, large bending, high low-temperature impact resistance, easy processing, and reusability. Experts predict that this product will be widely used in domestic and foreign automobile manufacturing industries in the 21st century. This product has a wide range of applications in auto parts. In automobile exterior parts, it is mainly used for bumpers, radiators, chassis, body panels, wheel guards, movable roofs and other protective rubber strips, windshield rubber strips, etc. In the interior parts, it is mainly used for instrument panel and interior panel skin, airbag outer skin material, etc. In 1998, the world's consumption of polyolefin thermoplastic elastomers in automobiles was about 453,600 tons, 90% of which were used in automobile exterior parts. At present, the research and development work of this product is underway. With regard to the development of outer panels of automobile bodies, domestic and foreign scientific research institutions have produced dimensionally stable polyolefin thermoplastic elastomer compounds to solve the problem of thermal expansion. By compounding minerals, glass fillers and various rubbers, the coefficient of thermal expansion is reduced by 50% to 75%, and stiffness, gloss, impact resistance and scratch resistance are improved.
  • 17 2021-05
    How will the spunbond and meltblown nonwovens industry develop in the future? Experts make these suggestions!
    Improve product quality. As the demand for spunbond meltblown nonwoven products is significantly increasing, nonwoven enterprises with a sense of social responsibility should not blindly invest, but should rationally choose to invest in medium and long-term high-end products, strengthen basic research, and establish product research and development bases and products. The testing center has planned and rhythmically improved product quality, created corporate characteristics, and maintained market operations. The development of spunbond meltblown nonwovens equipment is equally important, and key enterprises should go hand in hand. Improve standard formulation. Demand surges, a large amount of foreign capital enters the industry, the production capacity of melt blown cloth is rapidly expanding, and the problem of imperfect product standards is further highlighted. On the one hand, the existing reference standards were formulated earlier, and the quality requirements of the current product applications are not fully aligned, affecting the products Production and testing, on the other hand, the newly issued various recommended reference standards cannot provide professional advice for enterprise production, which is not conducive to product quality control. Entrepreneurs expect that while ensuring market supply and demand, industry-related organizations should promptly clarify existing standards, formulate new standards, and modify existing standards to ensure the orderly development of the industry. Strengthen industry supervision. After the rapid development of spunmelt nonwoven materials, it is bound to enter a period of industrial structure adjustment, and the reasonable release of production capacity is an important issue for industry development. Many entrepreneurs expressed the hope that industry associations and related platforms can strengthen research on industry production, disclose more real industry information, and guide ma
  • 14 2021-05
    Lots Of Chemicals Spinneret
    Product categories of Multifilament Yarn Spinneret, we are specialized manufacturers from China, Drawing Die, Monofilament Spinneret suppliers/factory, wholesale high-quality products of Monofilament Yarn Spinneret R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!
  • 13 2021-05
  • 12 2021-05
    Air fiber inner core Polyolefin polymer elastomer
    Affected by this special situation this year, since resuming work, sitting "moving bricks" for at least ten hours a day is really a bit of a pain! We all know that [sedentary sitting is very harmful", but you can only move around for a while, but for a lot of time, the code copy is not paying attention when it is written, and in two hours, except for the toilet, it may not move! I can't do it even if I want to rest, and I often suffer from backache and neck stiffness. Under such a heavy life pressure, if sitting for a long time is inevitable, then at least we have to make ourselves sit more comfortable. This comfort is not just to say that a cushion is soft and soft, but to take care of the spine from comprehensive considerations such as its air permeability, ergonomics, and comfort. Therefore, there is a great man to shoot. He discovered that a new type of black technology material that has been popular in Japan for a long time-air fiber, that is, ultra-fine polyethylene fiber, is very suitable for the development of seat cushions. The authentic air fiber imported from the original Mitsubishi factory in Japan uses the temperature difference between the raw material temperature of 200°C and the cold water of 13°C to form the air fiber in accordance with the water ripples, and then envelops the support. Under this technology, the fibers are three-dimensionally wound to form an intricate shape, but the mass is very light. The structure like the bird's nest has very good elasticity and support, which relieves the burden on the lumbar spine. The air chamber formed by the intertwining of the fibers allows the heat and moisture to be quickly discharged. Fan Cushion This name is not an exaggeration. It looks like a fan and is very unique. The mesh gaps are particularly large, with a lot of porcelain feeling missing, and the inside is full of air.
  • 11 2021-05
    Non-woven fabric: plastic that pretends to be cloth!
    What, non-woven fabric is not cloth? Environmental bags are also made of plastic? The wet wipes discarded outdoors cannot be degraded like napkins? Do you really understand the non-woven fabrics and products that are common in life? Non-woven fabric is a common material in our lives and is widely used in various life products. According to application requirements, non-woven fabrics can be divided into two categories: durable and disposable. Durable non-woven fabrics can be used many times, have a certain service life, and are widely used in clothing, home improvement, agriculture, industry and other fields. For example, many eco-friendly bags that have been popular in recent years are made of non-woven fabrics. Disposable non-woven fabrics are also common, such as wipes for cleaning, masks that everyone must use during the epidemic, tea bags for tea, and baby diapers. . . Non-woven fabric, the standard name is non-woven fabric. my country's national standard GB/T 5709-1997 "Textile Nonwovens Terminology" defines nonwovens as: "Oriented or randomly arranged fibers, combined with each other through friction, cohesion, or bonding, or a combination of these methods Sheets, webs or wadding, excluding paper, woven fabrics, knitted fabrics, tufted fabrics and wet-laid felt products. The fibers used can be natural or chemical fibers; they can be short fibers, filaments Or fibrous objects formed on the spot."
  • 07 2021-05
    The world's non-woven fabric industry--- a crazy year!
    It has been more than a year since Covid-19 cases were first reported. As the virus gradually spread from Asia to Europe and finally to North and South America in the first few months of 2020, many industries are facing suspension or closure. The non-woven fabric industry has begun to develop rapidly. Many markets for nonwoven services (medical, healthcare, sanitation, wipes, etc.) have been declared essential businesses for a long time, and there is an unprecedentedly high demand for medical equipment such as protective clothing, masks, and respirators. It also means that many companies in the industry must actually increase production or expand their existing businesses into new markets. According to Jacob Holm, a manufacturer of Sontara spunlace fabrics, as demand for personal protective equipment (PPE) increased in May, the production of this material increased by 65%. .Jacob Holm has significantly increased production by eliminating some of the defects in existing lines and other improvements, and soon announced that a new global expansion factory will be established, which will be put into operation early next year. DuPont (DuPont) has been supplying Tyvek nonwovens to the medical market for many years. As the coronavirus drives the demand for medical materials, DuPont will transfer materials used in the construction market and other applications to the medical market. At the same time, it announced that it will be in Virginia. The state increased production capacity to rapidly produce more medical protective products. In addition to the non-woven industry, other companies that have not traditionally been involved in the medical and PPR markets have also taken quick actions to meet the growing demand caused by the new crown virus. Construction and specialty products manufacturer Johns Manville will also use meltblown materials produced in Michigan for face masks and mask applications, and spunbond nonwovens for medical applications in South
  • 29 2021-04
    Development trend of China's machinery industry market in 2021
    Data from the National Bureau of Statistics show that in 2020, the growth rate of the added value of the machinery industry for the whole year will increase by 6% year-on-year, which is 3.2 percentage points higher than the growth rate of the national industrial added value for the whole year. Looking forward to 2021, as the first year of the "14th Five-Year Plan", the launch of major projects and major projects, the gradual formation of a new development pattern with the domestic cycle as the main body and the mutual promotion of the domestic and international double cycles, will bring the steady development of the machinery industry The corresponding market demand came. According to the prediction of the China Machinery Industry Federation, the overall economic operation of the machinery industry in 2021 will show a trend of high before the end, and the annual industrial added value growth rate will be around 5.5%. Looking back at the development history of China's machinery industry, since its establishment, it has made great achievements in several major areas including production concentration, technological progress, independent innovation, asset reorganization, and industrial structure optimization. In the new development period, China's machinery industry will be in the future. The development prospects of the company are still huge.
  • 27 2021-04
    Further development of the non-woven industry
    Chitin colloidal film non-woven mask inner layer Since the outbreak of the new crown pneumonia, wearing masks has become a routine action in people's work and life. However, long-term wearing masks will cause pressure marks, acne, allergies, and chest tightness. The cause of these troubles is the breathability and moisture conductivity of the mask itself, poor antibacterial and antibacterial effects, and poor oxygen permeability. The inner layer of the chitin colloidal film non-woven mask developed by Qingdao Dota Biotechnology Co., Ltd. fundamentally solves the problem. These problems provide guarantee for the epidemic prevention work. This innovative technology is the inner layer of the chitin colloidal membrane non-woven mask. The core is the chitin bio-immune active substance that can not be washed off. It has the characteristics of good film oxygen permeability, antibacterial, aeration, corrosion resistance, shielding and eliminating odors. , Absorption of heavy metals in the human epidermis and other properties. The inner layer of the chitin colloidal film non-woven mask is attached to a certain amount of negative oxygen ions, thereby improving the internal environment of the oral cavity and the fabric, making breathing fresher and smoother, and solving the problem of oxygen deficiency in the non-woven mask to a certain extent. Medical workers wearing masks for a long time can cause adverse reactions to the facial skin to varying degrees. Because the inner layer of the chitin colloidal film non-woven mask contains the inherent biological immune active substances of chitin, it can prevent the human facial skin from being corroded by gastric acid and gas, and play a role in protecting the facial skin.
  • 26 2021-04
    About Material 4dAirfiber--polyethylene elastomer
    The name is polyethylene elastomer. Polyethylene was synthesized by the British ICI company in 1922. Polyethylene elastomer has excellent thermoplastic properties. It has the dual characteristics of rubber and engineering plastics, and is also an excellent engineering elastomer in terms of durability and processability. The interface temperature when the mattress is in contact with the human body will affect the thermal comfort of the human body and further affect the quality of sleep, while the human-bed interface temperature is greatly affected by the mattress material. Choose 4 kinds of mattress materials and test the thermal comfort of the mattress in contact with the human body at two room temperatures. Through the interface temperature curve, combined with the subject's subjective evaluation test results, the relationship between mattress material, interface temperature and thermal comfort is analyzed. The results show that the human-bed interface temperature of an air fiber mattress without a bedding layer is lower than that of the other three materials for the bedding layer; the mattress interface temperature of memory foam and latex sponge is similar; the mattress interface temperature of ordinary sponge mattress is the highest ; At higher temperatures, the air fiber material mattress is at a moderate level, and the human body feels comfortable.
  • 25 2021-04
    Several common processing and finishing methods of functional textiles
    1. Antistatic fabric The methods to obtain antistatic fabrics mainly include the inlaid conductive fiber method and the fabric surface finishing method. The method of interwoven conductive fiber (co-woven with metal wire) can enhance the antistatic property of the fabric, and the effect is long-lasting, and at the same time, it can also improve the moisture absorption and stain resistance of the fabric; the surface finishing method of the fabric is to perform the synthetic fiber fabric Antistatic resin finishing, these antistatic agents cover the surface of the fabric to increase the conductivity of the fiber through moisture absorption. 2. Waterproof and breathable fabric The development of waterproof and moisture-permeable fabrics mainly includes three methods: high-density weaving, fabric coating and microporous film lamination. Among them, PTFE waterproof and moisture-permeable lamination is the most typical. Because the PTFE microporous film has a certain contact angle and micropore radius, it has certain water pressure resistance and moisture permeability. The laminated fabric produced by the biaxially stretched PTFE microporous film is waterproof and windproof. Features such as sex and moisture permeability. 3. Antibacterial and deodorant fabric Antibacterial health care fabrics can be produced by blending spinning method and finishing processing method. Blending spinning method is a method in which antibacterial agents are added to the fibers at the polymerization stage, at the end of polymerization or before the spinning nozzle and in the spinning dope; the finishing processing method is to thermoset the antibacterial agents on the fibers to achieve the purpose of antibacterial and deodorization . 4. Flame-retardant textiles The flame retardant monomer is copolymerized with the polymer or the flame retardant is added to the polymer to be mixed and processed into a blended fiber, which is then wove
  • 23 2021-04
    Breathable and washable pillow core cushion mattress
    Our company is an enterprise specializing in the production of three-dimensional air fiber polymer technology materials. Focus on the production and development of 3D polymer technology air fiber mattresses, pillows, cushions and other bedding products. The company can produce environmentally friendly, high-elastic, breathable and washable 3D polymer air fiber inner core/pillow/cushion, and design and develop finished products around the 3D polymer air fiber inner core material, thus opening the core silk wei polymer technology for customers Provide one-stop service for the overall research and development, production, cutting and shaping of polymer air fiber products and sewing of finished products. To High-molecular air fiber products are widely used in maternal and infant, hospital, home, automobile, outdoor, pet, hotel, campus, elderly care and other fields, and are very popular! The products are widely exported to more than 20 regions including Japan, South Korea, the United States, and Taiwan, China. At present, we have in-depth cooperation with many elderly care institutions, hospitals, and kindergartens at home and abroad! To The company uses PE raw materials from top international brands such as Mitsui, Mitsubishi, Exxon, Dow Chemical, etc. The raw materials are all food grade! Environmentally friendly and formaldehyde free! Today I will give you Amway a cushion for Japanese fans that can "breathe". This 90% air fan cushion can relieve the pressure of sitting for a long time and give you the light and enjoyment of sitting like air. Its production is very special using air fiber imported from the original Mitsubishi factory in Japan, and the temperature difference between the temperature of the raw material of 200 ℃ and the temperature of 13 ℃ cold water is used to make the air fiber integrally formed in accordance with the water ripple. The unique three-dimensional winding forms a
  • 23 2021-04
    Transparent medical mask, without fear of viruses, showing the charm of a smile
    Since the outbreak of the epidemic, people have gradually become accustomed to the days of wearing masks. When the virus was isolated, our expressions were also isolated behind the masks. And for some special groups, such as deaf-mute people, they often need to rely on a combination of sign language and lip language to communicate. The use of masks can make communication and understanding difficult. Is it possible to develop a transparent anti-virus mask to isolate the virus without isolating our friendly expressions? In fact, since the Ebola virus spread in Africa in 2015, Klaus Sch?nenberger, one of the founders of the startup Hmcare (also the head of the EssentialTech Center at the Federal Institute of Technology in Lausanne, Switzerland) saw such a demand, and another The founder Diane Baatard also had the same idea as Klaus when he worked at the Children's Hospital. The encouragement of a doctor`s smile on the patient often has a very positive therapeutic effect. However, many transparent masks only replace part of the fabric with transparent materials, which can not meet the requirements of good virus protection and often fog up. As a result, Klaus Sch?nenberger, Diane Baatard, Thierry Pelet (Hmcare CEO) and Sacha Pierre Sidjanski. jointly initiated the transparent mask research and development project. After two years, the Empa Material Science Laboratory in Switzerland and the EssentialTech Center of the Federal Institute of Technology in Lausanne worked together to find a material combination that met the requirements for transparency, resistance and porosity, and developed a completely transparent medical surgical mask. This kind of mask is called HelloMasks. It is made of 99% biomass-derived materials. It is made into a film by nanoelectrospinning technology. There are many tiny gaps in the fiber structure, which has good air permeability and can isolate viruses and bacteria. It also has a good anti-fog effect. And
  • 22 2021-04
    How to manage outsourcing parts for machining?
    In fact, supplier quality management is a big subject. I do design, but in accordance with the quality management process, I have also participated in many of them. I will discuss our company`s approach from my perspective: supplier audit, which is to be done before starting business. The purchasing department provides several alternative companies. Quality, engineering, and procurement three companies will visit together to review their quality management. Process, processing capability, company size, turnover rate, technical level, design capability, environmental protection, personnel safety, etc. Finally, give a conclusion, what difficulty level products let them do. Provide product inspection report for each batch of product delivery, and investigate process control documents when quality problems occur. Usually, they will check their quality documents from time to time. If the documents are falsified, the cooperation will be terminated. Engineering communication, drawings are fundamental and have legal effect. Quotation is based on drawings, processing is based on drawings, and acceptance is based on drawings. To be fair, when quoting, the supplier has the right to mention DFM (design for manufacture), which means that if the drawing requires them to fail to do so, it must be submitted when the quotation is made. Don`t mention it at this time, and start to do it later. No more. The delivery date should also be given at the time of quotation, and there should be a written commitment, and no deduction can be made. Generally, suppliers will leave enough margin for themselves. Therefore, when sending out an inquiry, generally purchase enough time in advance to ensure that DFM and the supplier arrange production. The control of the processing process and the factory inspection are done by the supplier, and the acceptance and re-inspection is usually only a small amount of random inspection. Once you find out-of-tolerance or scratches and
  • 21 2021-04
    Can you understand textile fabric organization analysis?
    The diameter is generally a few micrometers to tens of micrometers, and the length is a hundred times or more than a thousand times larger than the diameter of the elongated substance is called fiber. But not all fibers can be used to make textiles. Textile fibers are various fibers that have spinnability, dyeability and certain strength, elasticity, softness, fineness, length and other characteristics and are used to make textiles. Generally speaking, the characteristics of textile fibers are: they have a slender shape, are soft and elastic, and can be used in textile production. (1): According to the geometric structure of the fiber, it can be divided into filament and staple fiber 1. Filament: refers to long, continuous natural silk and chemical fiber. Filament is divided into monofilament and multifilament. Monofilament is a silk spun from a single-hole spinneret or drawn from a single cocoon by a chemical fiber factory. The filaments used in the textile industry are mostly multifilaments, which consist of two or more monofilaments. For example, 150D/96F is composed of 96 monofilaments. 2. Short fiber: refers to short natural fiber and cut chemical fiber. The cut chemical short fibers can be divided into cotton fibers, wool fibers, and medium-long fibers. Generally, the length of cotton-type fibers is 33-38mm, the length of wool-type fibers is above 76mm, and the length of medium-length fibers is 51-66mm. Short fiber is divided into pure spinning yarn and blended yarn. The one with one raw material is called pure spinning, and the one with two or more raw materials is called blended yarn. 3. The codes of commonly used textile fibers.
  • 21 2021-04
    What are the inspection standards for machined parts?
    Machining refers to the removal of material by mechanical precision machining, which is the abbreviation for machining. Precision cutting, that is, precision cutting, is processed by high-precision cutting machinery. Using high-precision processing machine tools, processing high-precision parts, and using error compensation technology to improve the machining accuracy of parts is the way to achieve precision machining of parts. Are there any inspection standards for machined parts? Basic principle: This acceptance method only accepts materials of 100% specified size. For workpieces with matching requirements, the size inspection must conform to Taylor's principle, and the working size of the hole or shaft must not be larger than the actual size. Principle of minimum deformation: In order to ensure the reliability and accuracy of the measurement results, the influence of various factors should be avoided and minimized during deformation planning. The principle of the shortest dimension chain: In order to ensure the required measurement accuracy, the measuring chain should be as short as possible. Closing principle: When the measurement is performed, if the closing condition is met, the sum of the interval differences is equal to zero, that is, the closing principle. Basically agree with the principle: the vehicle benchmark should conform to the design benchmark and process benchmark.
  • 24 2021-03
    Textile process and related knowledge
    1. Fiber and spinning 1. Collection of textile fiber types D is the abbreviation of DENIER (denier), which is a method of expressing the fineness of chemical fibers. It refers to the weight in grams of a 9000-meter-long silk at a given moisture regain, also called denier. The thicker the yarn. Eg: 75D is thicker than 50D. S is the abbreviation of British branch, used to express the fineness of pure cotton yarn, referring to the number of 840 yards (1 yard = 0.9144 meters) length of a pound (454 grams) of cotton yarn. That is, there are a few 840 yards, which is just a few, so if S is added, the yarn is thinner. For example: 32S is thinner than 21S. Textile fibre ★(1) Natural fibre ●plant fiber ○seed fibre (seed fibre): cotton (cotton): mainly includes upland cotton and sea island cotton, which are the main natural fibers. Kapok (kapok) ○Bast fiber: Flax: The bast fiber of the annual or perennial plant of the flax family in the flax family. Hemp, green hemp, kenaf Ramie (China grass): The bark of a perennial plant of the genus Ramie in the Ramie family. Jute: The bark fiber of an annual herbaceous plant belonging to the genus Jute of the Tianma family. ○Leaf fibre: Sisal (sisal hemp), Abaca (Manila hemp) ○Fruit fibre: coconut fibre ●animal fibre hair: wool: mainly refers to sheep wool, which is a short protein fiber. Rabbit hair: mainly short protein fiber produced by Angora and domestic rabbits. Camel hair: The fiber is relatively thick and is mainly used in industrial textiles. Secretion: tussah silk: wild silk, the filament spit out by silkworms that feed on tussah silk. Mulberry silk (mulberry silk): Bombyx mori silk, the filament spit out by the silkworm that feeds on mulberry leaves. ●Mineral fiber: asbestos fiber ★(2) man-made fibre ○Inorganic fiber: metal fiber, glass
  • 21 2021-02
    Show of New product :Carbon fiber mold
    Carbon fiber mold Size can be customized nonstandard products can make it according to your drawings or samples We are committed to micro-hole processing services the smallest hole we can process is 0.06mm tolerance is 0.002mm if you are interested in our products, pls let us know we will be pleasure to assist you!!! Contact: Whatsapp/Wechat:+86 1731539 9193 Email: fairyzhang6@gmail.com
  • 21 2021-02
    The outbreak of the new crown pneumonia epidemic in 2020 industrial textile profits will increase significantly
    Industrial textiles are an important part of the new material industry. They are not only widely used in civilian production, but also play an important role in national strategic security. They have become medical and health, safety protection, environmental protection, infrastructure construction, new energy, aviation Strategic supporting force in aerospace, national defense and military industries. Its scientific and technological innovation is active, and its products have high added value. It has always been a key industry supported and encouraged by the state. The proportion of my country's total industrial textile fiber processing in the textile industry has increased from 20% in 2010 to about 30% in 2019, ranking second in the three major terminal applications (clothing, industrial, household) in the textile industry; The industry`s main business income, profits, and industrial added value growth rate have always been at the leading level in the textile industry. The industrial textile industry has become one of the most dynamic fields in my country's industrial system, and there is still huge room for future development. The outbreak of the new crown pneumonia epidemic has once again demonstrated the importance and indispensability of the industrial textile industry. The China Industrial Textile Industry Association and enterprises in the industry put the interests of the country and the people as the most important, and they actively participated in the battle against the new crown virus at the beginning of the outbreak, overcoming many difficulties, and organizing the production of medical protective materials such as masks and medical protective clothing , And strive to ensure the normal supply of raw materials. At the same time, the China Industry Association has actively carried out investigations and studies, in-depth study and judgment of the impact of the epidemic on the development of industry enterprises, promoted the resumption
  • 05 2021-02
    chemical spinnerert foe The production process and progress of polypropylene (PP) plastics
    At present, polypropylene (PP) is mainly produced by gas phase and bulk processes. The growth of global gas phase and bulk loop process resins strongly challenges the products of slurry process. Since the 1990s, the slurry process has been gradually eliminated. In the global PP production process, Basell`s Spheripol loop tube/gas phase process dominates, and this process currently accounts for 50% of the global PP production; followed by DOW`s Unipol gas phase process, BP`s Innovene gas phase process, and NTH`s Novolen Gas phase process, Hypol kettle body process of Mitsui, Borstar loop tube/gas phase process of Borealis, etc. In recent years, the ratio of gas phase and bulk process has increased year by year, and PP plants under construction and new construction all over the world will basically adopt gas phase process and bulk process. In particular, the rapid increase in gas phase processes is challenging the Spheripol process, which ranks first in the world. According to NTH Company, since 1997, 55% of the newly-increased PP capacity permitted worldwide has been based on the Novolen gas phase process, and the gas phase process will gradually increase in the future. In addition to the above main PP production processes, the original Montell company successfully developed reactor PP alloy Catalloy and Hivalloy technologies in the 1990s. The successful development of these two technologies has created conditions for the high performance, functionalization and entry of high value-added applications of PP resins, and industrial production has now been realized. In addition, Basell and Borealis have also made breakthroughs in new polypropylene technology. (1) Hypol process of Mitsui Petrochemical. The Hypol process uses a kettle-type liquid-phase bulk-gas-phase combination process technology, and uses TK-II high-efficiency carrier catalysts. The catalyst activity is more than 20,000 gPP/gcat, and it does not remove ash and random substances. The iso
  • 03 2021-02
    Instructions for use of polypropylene mesh fiber with spinneret
    The polypropylene mesh fiber is specially designed for concrete. It is a bunch of interwoven fiber-like mesh threads. When polypropylene fiber is mixed into concrete at a weight of 0.9 kg per cubic meter, the bundles of network wires will spread out after being impacted by sand, cement, and aggregates as they are stirred, and become countless individual fibers that are evenly mixed in the concrete. . ●Structural design: Although the incorporation of polypropylene fiber can significantly improve the performance of concrete, under normal circumstances, polypropylene fiber is still used as a "secondary reinforcement" of concrete to prevent shrinkage and cracking of concrete and extend the service life of concrete. Rather than "main reinforcing ribs" bear the main load of the structure. A large number of experiments have also confirmed that although the number of fiber monofilaments obtained after the polypropylene network fiber is dispersed is large, the volume ratio of 0.9kg-1.8kg polypropylene network fiber per cubic meter of concrete is only 0.1%-0.2 %, so it has no significant effect on the compressive strength and elastic modulus of concrete. It is recommended to not change the reinforcement ratio of the main force bars in the original design after the polypropylene mesh fiber is incorporated. ●Length selection: In general engineering, the length of polypropylene fiber is 20mm. ●Proportioning design: Under normal circumstances, in unilateral concrete, the appropriate content of polypropylene mesh fiber is 0.9kg, and the content of bridge deck waterproof layer is 1.8kg, and there is no need to change the amount of other materials. When there is a special purpose, the content of polypropylene mesh fiber and the proportion of concrete can be determined through experiments. For concrete mixed with active mixed materials such as silica fume, fly ash, ground slag, zeolite powder, etc., the net fiber has a better effect. ●Mixer selecti
  • 30 2021-01
    Development status of chemical fiber ropes for marine engineering at home and abroad
    Marine engineering cables refer to cables used for mooring, anchoring, towing, hoisting, etc., used in resource development and equipment facility construction. Generally, they include steel wire cables and chemical fiber cables. Due to the weight of steel wire ropes under the same strength, they are not Seawater corrosion resistance is gradually being replaced by synthetic fiber cables in the field of marine engineering. The application of chemical fiber ropes in the field of marine engineering has also promoted the continuous technological innovation and development of rope manufacturers at home and abroad. The UHMWPE fiber rope manufactured by the famous American rope company Samson Company uses the excellent Dyneema® fiber as the main raw material, such as low creep SK78 fiber, etc., to ensure product quality from the raw material. Samson has a wide range of products and can develop special rope types for specific work areas. Its braided structures are 8-knit, 12-knit and double-knit.
  • 27 2021-01
    PTA focuses on maintenance rhythm and cost-driven
    Recently, the PTA market has been steadily increasing. The core logic lies in the cost drive. Fuhaichuang and Hanbang parking maintenance are just icing on the cake. In the context of overcapacity, the fundamentals of PTA are still under pressure as a whole, cost-driven will dominate future market trends, and maintenance activities will only affect the market rhythm. There are two logics for the recent strength of the PTA market: one is the cost-side drive, which is also the most important upward push; the other is the centralized maintenance of PTA manufacturers, the supply is substantially reduced in stages, and the market has changed from the expected accumulation of stocks to the reality of destocking. How will the future PTA market be interpreted? Is the core logic sustainable? Our point of view is: cost-driven is the core logic, and PTA factory maintenance is the icing on the cake. How far the market can go next depends on the
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