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Difference between polypropylene filter cloth and polyester filter cloth
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| Published：2013.06.17 Reads： |
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Polypropylene is the trade name of polypropylene fiber, which is made by the polymerization of propylene as raw materials, fibers obtained by melt spinning. Polypropylene officially began in 1957 industrial production, is a rising star in the synthetic fiber. Since polypropylene with simple production process, product inexpensive, high strength, relative density of light, etc., so polypropylene developed rapidly. Polypropylene is a synthetic fiber is currently the fourth largest varieties.
Polypropylene production, including short fibers, filaments and split film fibers. Polypropylene film fibers are first made of polypropylene film, and the film is stretched, it split into fibrils form a mesh and the obtained. Polypropylene is used extensively for manufacturing of industrial fabrics, non-woven fabrics. Such as carpet, industrial cloth, rope, fishing nets, construction reinforcement, oil blankets, and other fabrics. In the civil context, polypropylene can be spun or pure wool, cotton or viscose and other blended to produce a variety of clothing. In addition, polypropylene fiber membrane used as packaging materials.
Polypropylene main physical and chemical properties
1. Longitudinal surface morphology straight and smooth polypropylene, a circular section.
2. Density polypropylene biggest advantage is light texture, its density is only 0.91g/cm3 density is a common chemical fiber lightest varieties, so other than the same weight of polypropylene fibers get higher coverage.
3. Strength and elongation polypropylene, high strength, elongation big, high initial modulus, excellent elasticity. So polypropylene wear resistance. In addition, polypropylene wet strength is substantially equal to dry strength, so it is making fishing nets, ropes ideal material.
4. Moisture absorbency and dyeability of polypropylene is very small, almost no moisture absorption, moisture regain of the general atmospheric conditions close to zero. But it has a wicking, passing through the vapor capillary fabric but itself has no absorption. Poor dyeability of polypropylene, chromatography was incomplete, but you can use liquid coloring method to make up the shortfall.
5. Polypropylene has good acid and alkali resistance chemical resistance, in addition to concentrated nitric acid, concentrated sodium hydroxide, the polypropylene resistant to acids and bases, good performance, so suitable as a filter material and the packaging materials.
6. Polypropylene light light resistance is poor, poor thermal stability, easy to aging, intolerance ironing. But can be added by spinning old age Hua agent, to improve its anti-aging properties. Furthermore, good electrical insulation of polypropylene, but the processing is easy to produce static electricity. |
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