What are the basic features of polyester fiber?
Heat resistant polyester is made by melt spinning, and the formed fiber can be melted and heated again. It belongs to thermoplastic fiber. The melting point of polyester fiber is relatively high, but its specific heat, air and thermal conductivity are smaller. Therefore, the heat resistance and heat insulation of polyester fiber are higher. It's the best synthetic fiber. 4. polyester surface smooth, internal molecules arranged closely. Polyester fabric. The heat resistance of synthetic fabric is best, with thermoplastic, making pleated skirt, pleated long. At the same time, the polyester fabric melt resistance is poor, in ash, Mars is easy to form holes. Therefore, when you wear, you should try to avoid cigarette butts, sparks and other contacts.
Polyester fiber is an important variety of synthetic fiber, and it is the commodity name of polyester fiber in our country. It is a pure terephthalic acid (PTA) or terephthalic acid methyl ester two (DMT) and ethylene glycol (EG) as a fiber polymer, polyethylene terephthalate as raw materials by esterification or transesterification and polycondensation prepared (PET), the spinning and postprocessing fibers.
Good elasticity. The elasticity close to wool, when stretched 5% ~ 6%, can almost completely recover. Wrinkle resistance over other fibers, that is, fabric does not wrinkle, good dimensional stability. The modulus of elasticity is 22 to 141cN/dtex, 2~3 times higher than that of nylon. . the strength and elasticity of polyester fabric has high resilience, therefore, the color fastness and durability, anti crease.
High strength. The strength of short fiber is 2.6 ~ 5.7cN/dtex, high tenacity fiber is 5.6, polyester fiber is 8.0cN/dtex. Because of its low moisture absorption, its wet strength is basically the same as dry strength. Impact resistance is 4 times higher than nylon, 20 times higher than viscose fiber.
