China's product name of synthetic fiber isotactic polypropylene fiber made from petroleum-refined by-product propylene. Also known as polypropylene fiber. Rich sources of raw materials, consumer technology is simple, the price of the product compared to other synthetic fiber low. The physical and mechanical properties of the fiber are: high strength (staple fiber 4 ~ 6 g / denier, filament 5 to 8 g / denier), wet strength and dry strength are basically the same, the proportion of small (0.91), wear resistance Corrosion and so on. The world polypropylene fiber production in 1980 has exceeded 1 million tons. The types of polypropylene filaments (including undeformed filaments and expanded deformable filaments), short fibers, bristles, membrane split fibers, hollow fibers, shaped fibers, all kinds of composite fibers and non-woven fabrics. The main use is the manufacture of carpets (including the carpet and suede), decorative fabrics, furniture fabrics, all kinds of ropes, tapes, fishing nets, linoleum, building materials to strengthen, packaging materials and industrial fabrics, such as filter cloth, Wait. In addition, the application of wear is also increasingly common, with a variety of fiber blends made of different types of blended fabrics, after knitting can be made into shirts, outerwear, sportswear, socks and so on. Made of polypropylene fiber hollow fiber, light, warm, good elasticity. Polypropylene in the molecular structure does not contain dyes and chemical separation of the group, so dyeing more difficult. Melt coloration is generally used to uniformly blend the pigment preparation and the polypropylene polymer in a screw extruder. The color fastness of the colored fibers after melt spinning is high. Another approach is with acrylic acid, acrylonitrile, vinyl pyridine copolymerization or graft copolymerization, the polymer macromolecules can be introduced into the polar phase separation of the dye, and then directly using conventional methods. In the process of consumption of polypropylene often need to participate in various additives to improve dyeing, lightfastness and flame resistance. Scientific name Polypropylene fiber, near the flame that is melted, flammable, away from the fire and retarded slowly and black smoke, yellow flame on the bottom, the bottom of the blue distribution of oil taste, ashes after burning hard yellowish brown particles, hand twist fragile . It is made from propylene as a raw material by polymerization, melt spinning fiber. Polypropylene began its industrialization in 1957 and became a rising star in synthetic fibers. Because of polypropylene has the advantages of simple process, low cost, high strength, light weight and so on, so the performance of polypropylene is very fast. At present, polypropylene is the fourth largest category of synthetic fibers and is the lightest fiber in common chemical fibers. Polypropylene consumption includes staple fibers, filaments and split-film fibers. Polypropylene fiber is the first film made of polypropylene, and then stop stretching the film, making it united into a net made of fibrils and prepared. The company is located in:
Civilian use: to be pure or blended with wool, cotton or viscose, etc. to create a variety of fabrics. Can be used to knit a variety of knitwear such as hosiery, gloves, knitwear, knitted pants, kitchen towels, mosquito net cloth, was Xu, warm packing, wet diapers. The company is located in:
Industrial use: Carpets, fishing nets, canvas, hose, reinforced concrete, industrial fabrics, non-woven fabrics. Such as carpet, industrial filter cloth, rope, fishing nets, building to strengthen the information, such as oil absorption blanket and Zhuang Shibu. In addition, polypropylene fiber can be used as packaging materials. The company is located in:
The main physical and chemical properties of polypropylene
1. Polypropylene form straight longitudinal lubrication, cross-section was round. The company is located in:
2. The greatest advantage of density polypropylene is the light texture, the density of only 0.91g / cm3 is the lightest chemical fiber density of the common species, so the same weight of polypropylene fiber than other fibers get a higher cover area. The company is located in:
3. Strong tensile polypropylene high strength, elongation, high initial modulus, excellent elasticity. Therefore, good wear resistance of polypropylene. In addition, the wet strength of polypropylene is equal to the dry strength, so it is ideal for the manufacture of fishing nets, cables. The company is located in:
4. Hygroscopicity and dyeing properties of light warm good; simply not hygroscopic, but a strong heart-wicking, obvious effect of moisture absorption and perspiration; polypropylene hygroscopicity is very small, simply not hygroscopic, moisture regain under normal atmospheric conditions close to zero. But it has a wicking effect, can pass water vapor through the capillary in the fabric, but can not afford any absorption by itself. Polypropylene dyeing is poor, incomplete chromatography, but the solution can be used to compensate for lack of coloring solution. The company is located in:
5. Acid and alkali-resistant polypropylene has good chemical resistance, in addition to concentrated nitric acid, concentrated caustic soda, polypropylene acid and alkali to resist the good performance, it is suitable for use as filtering and packaging materials. The company is located in:
6. Light fastness Polypropylene poor light resistance, thermal stability is poor, easy to aging, impatient ironing. But to participate in anti-aging agents in the spinning, to improve its anti-aging properties. In addition, polypropylene electrical insulation is good, but easy to produce static electricity during processing. The company is located in:
7. High strength PP stretch yarn strength second only to nylon, but the price is as long as nylon 1/3; made of fabric size stability, abrasion resistance is also good, good chemical stability. However, poor thermal stability, intolerance of the sun, easy to aging brittle damage, this is often joined in anti-aging polypropylene. The company is located in:
Vinylon cloth
Vinylon cloth material properties: alkali resistance, good wear resistance, corrosion resistance, durability 1-2 times more pure cotton, and hygroscopicity. Defects are lower temperature, the temperature of 100 degrees will shrink, not acid. Mainly used for ceramics factory, pharmaceutical factory, food and other industries, more suitable for the rubber industry. The company is located in:
Glass fiber cloth expanded glass fiber filter cloth weft by the extruded yarn. As yarn loose loose, masking ability, good permeability, it can improve the filtration efficiency, reduce filtration resistance, dust removal efficiency up to 99.5%, the product is mainly used for high temperature atmospheric dust and the recovery of valuable industrial dust and so on. For example, cement, carbon black, steel, metallurgy, electric power generation and coal-fired stoves and other industries. The company is located in:
Polyester cloth physical properties: moisture regain <0.4%, the proportion of 1.38. The company is located in:
Mechanical properties: higher strength 4 ~ 5.5g / D, good elasticity and elastic recovery, elongation 15 ~ 30%, good wear resistance. The company is located in:
Chemical properties: acid and alkali resistance. The company is located in:
Heat resistance: dry temperature <200 ℃, wet temperature <220 ℃, softening point is 230 ℃, melting point is 256 ~ 265 ℃, good heat resistance and deformation stability.
浙江天台丰顿滤料有限公司是一家专业从事：液体过滤袋、工业滤布、滤布、滤袋、除尘袋生产销售的滤布厂家，多年来在液体过滤袋、滤袋、工业滤布、除尘袋生产上积累了丰富的经验和领先的技术。
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