What is pbt? What is pbt? PBT (polybutylene terephthalate fiber) has the characteristics of polyester weather resistance, dimensional stability, anti-wrinkle, etc. It also has the softness and abrasion resistance of nylon. The Elastic recovery is better than nylon, and the dyeing performance is better than polyester. Atmospheric boiling dye. What is particularly striking is that the PBT fiber after deformation processing is very elastic, and it has a reversible relaxation-tension state with the external force under both low load and wet conditions. Fabrics made from PBT fiber can be worn with them, and they are very comfortable and fit, comparable to spandex fabrics.
In the 1970s, PBT first appeared in the international market with the appearance of engineering plastics, and was applied in the electrical industry, automotive industry and equipment manufacturing. In the late 1970s, PBT began to appear as a short-fiber rug in the textile field. In the early 1980s, PBT was processed into textured yarn, which became a distinctive elastic fiber and entered the international market. After more than 10 years of development, PBT fiber has become a new type of polyester fiber in the form of textured yarn, filament, staple fiber and modified fiber.
1. The strength of PBT fiber is 2.8~4.0cN/dtex, the elongation is 30%~60%, the melting point is 224°C, the crystallization rate is 10 times faster than PET, and it has excellent elastic recovery rate and softness. The characteristics of dyeing.
2. Fibers made of PBT have some properties common to polyester fibers, but the melting point and glass transition temperature of PBT fibers are lower than those of ordinary polyester fibers due to the long flexible portion on the basic link of PBT macromolecules. , resulting in an increase in the flexibility and elasticity of the fiber macromolecular chain.
3. PBT fiber has good durability, dimensional stability and good elasticity, and the elasticity is not affected by humidity.
4. PBT fiber and its products have soft hand feeling, good hygroscopicity, abrasion resistance and fiber curling property, excellent tensile elasticity and compression elasticity, and its elastic recovery rate is superior to that of polyester. PBT fibers have special stretchability under dry and wet conditions, and the elasticity is not affected by changes in ambient temperature.
5. With good dyeing performance, it can be subjected to atmospheric pressure boiling dyeing with ordinary disperse dyes without carrier. The dyed fiber has bright color, excellent color fastness and chlorine resistance. The dyeing rate at 100 ° C is equivalent to the dyeing rate of PET at 120 ° C.
6. Excellent chemical resistance, light resistance and heat resistance.
7. The inadequacy of PBT fiber is that heat resistance is slightly inferior to PET and PA, and the strong alarm is an obstacle to the application of PBT in the textile field.
In the 1970s, PBT first appeared in the international market with the appearance of engineering plastics, and was applied in the electrical industry, automotive industry and equipment manufacturing. In the late 1970s, PBT began to appear as a short-fiber rug in the textile field. In the early 1980s, PBT was processed into textured yarn, which became a distinctive elastic fiber and entered the international market. After more than 10 years of development, PBT fiber has become a new type of polyester fiber in the form of textured yarn, filament, staple fiber and modified fiber.
1. The strength of PBT fiber is 2.8~4.0cN/dtex, the elongation is 30%~60%, the melting point is 224°C, the crystallization rate is 10 times faster than PET, and it has excellent elastic recovery rate and softness. The characteristics of dyeing.
2. Fibers made of PBT have some properties common to polyester fibers, but the melting point and glass transition temperature of PBT fibers are lower than those of ordinary polyester fibers due to the long flexible portion on the basic link of PBT macromolecules. , resulting in an increase in the flexibility and elasticity of the fiber macromolecular chain.
3. PBT fiber has good durability, dimensional stability and good elasticity, and the elasticity is not affected by humidity.
4. PBT fiber and its products have soft hand feeling, good hygroscopicity, abrasion resistance and fiber curling property, excellent tensile elasticity and compression elasticity, and its elastic recovery rate is superior to that of polyester. PBT fibers have special stretchability under dry and wet conditions, and the elasticity is not affected by changes in ambient temperature.
5. With good dyeing performance, it can be subjected to atmospheric pressure boiling dyeing with ordinary disperse dyes without carrier. The dyed fiber has bright color, excellent color fastness and chlorine resistance. The dyeing rate at 100 ° C is equivalent to the dyeing rate of PET at 120 ° C.
6. Excellent chemical resistance, light resistance and heat resistance.
7. The inadequacy of PBT fiber is that heat resistance is slightly inferior to PET and PA, and the strong alarm is an obstacle to the application of PBT in the textile field.
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