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Applications Of PET
PBT yarn is the abbreviation of polybutylene terephthalate fiber (Polybutyleneterephthalatefibre), which is esterified from high-purity terephthalic acid (TPA) or dimethyl terephthalate (DMT) with 1,4-butanediol The post-condensation ... moreApplications Of PET
PBT yarn is the abbreviation of polybutylene terephthalate fiber (Polybutyleneterephthalatefibre), which is esterified from high-purity terephthalic acid (TPA) or dimethyl terephthalate (DMT) with 1,4-butanediol The post-condensation linear polymer, the fiber obtained by melt spinning, belongs to a kind of polyester fiber. In production, dimethyl terephthalate and 1,4-butanediol are often transesterified, and polycondensation is carried out at a higher temperature and vacuum with organic titanium or tin compounds and tetrabutyl titanate as catalysts. , and then melt-spun to obtain PBT fibers. PBT fiber is the favorite of engineering plastics. In 1979, Teijin Corporation of Japan first introduced PBT fiber products. With the development of differentiated fibers, the use value of PBT as a fiber has been gradually recognized by people.
2. Performance introduction
1. The strength of PBT fiber is 30.91-35.32cN/tex, the elongation is 30%-60%, and the melting point is 223°C. Its crystallization speed is 10 times faster than that of polyethylene terephthalate, and it has excellent elongation. Long elastic recovery rate and soft and easy to dye features.
2. The fibers made of PBT have some properties shared by polyester fibers, but because the flexible part on the basic chain link of PBT macromolecules is longer, the melting point and glass transition temperature of PBT fibers are lower than those of ordinary polyester fibers. , resulting in increased flexibility and elasticity of the fiber macromolecular chains.
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 are soft to the touch, good in hygroscopicity, abrasion resistance and fiber crimp, excellent in tensile elasticity and compression elasticity, and its elastic recovery rate is better than that of polyester. PBT fiber has special stretchability under dry and wet conditions, and its elasticity is not affected by changes in ambient temperature.
5. It has good dyeing performance and can be dyed with ordinary disperse dyes without carrier. The dyed fiber has bright color, excellent color fastness and chlorine resistance.
6. It has excellent chemical resistance, light resistance and heat resistance.
3. Application
1. It is especially suitable for making high-elastic textiles such as swimming suits, pantyhose pants, training suits, gymnastics suits, bodybuilding suits, tennis suits, dance tights, elastic denim suits, ski pants, stockings, and medical bandages.
2. PBT and PET composite fiber has fine and dense three-dimensional crimp, superior resilience, soft hand feeling and excellent dyeing performance. It is an ideal raw material for imitation wool and down, and is comfortable to wear.
3. The filaments of PBT fibers can be used after deformation processing, while the short fibers can be blended with other fibers, and can also be used to make elastic labor cloth with core-spun yarn. It can also be used to weave wool-like fabrics.
4. If the porous insulation flakes are made of PBT fibers, they will be washable, soft, breathable, light and thin. The tufted carpets produced with PBT fibers will feel like wool carpets. The bristles can be used as toothbrush filaments, etc., and have good anti-falling properties.
4. Market conditions
The price of PBT is much lower than spandex fiber. The demand for PBT in the Asia-Pacific region continues to rise. Since the beginning of this year, the demand for PBT in the Asia-Pacific region has increased by more than 30% over the same period last year. Japan's Toray Co., Ltd. is a major supplier in Asia.
Suzhou Junhui Textile Co., Ltd. is a professional Colored Yarn Manufacturers. If you need it, you can click the official website to contact us. We are willing to answer you for more information.
our website is https://www.xiaorangroup.com/ less
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