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Polybutylene terephthalate monofilament yarn

A polybutylene terephthalate and polybutylene phthalate technology, which is applied in the field of polybutylene terephthalate monofilament fibers, can solve the problems of low notched impact strength and large molding shrinkage rate, and achieves Low molding shrinkage, high impact strength, and increased strength

Inactive Publication Date: 2007-09-26
JIANGSU SHENGHONG CHEM FIBRE CO LTD
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  • Summary
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  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the notched impact strength is low and the molding shrinkage is large

Method used

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Embodiment Construction

[0007] In the specific implementation process, it is also possible to add 30-70% composite toughening agent to 30-70% polybutylene terephthalate (PBT) to improve the toughness of the monofilament, and at the same time combine the melt direct spinning technology to produce, It solves the problems of poor toughening effect of conventional tougheners, and a large decrease in strength and rigidity after toughening, and achieves high notched impact strength without reducing tensile strength, flexural strength and flexural modulus, and the actual effect of low cost. Monofilament fibers with excellent monofilament toughness are produced.

[0008] In practical application, it can be combined with the production equipment of polyester microfiber such as German XIMMER company, and can be applied to 50D / 18F, 75D / 36F, 75D / 48F, 50D / 36F, 100D / 48F, 80D / 12F, 50D / 12F, 150D / Production of monofilament fibers such as 144F.

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Abstract

The invention relates to a polybutylene terephthalate filament fiber. For improving the flexibility of said fiber, the invention adds polybutylene terephthalate into ultra-fine chopped carbon strand, to spin at 250-300Deg. C to obtain needed filament fiber, with high strength, impact resistance, and low contraction percentage and deformation resistance. The invention can be used to produce face fabric filament.

Description

technical field [0001] The invention relates to a polymer fiber, especially polybutylene terephthalate monofilament fiber. Background technique [0002] The current English name of polybutylene terephthalate is polybutylece terephthalate (referred to as PBT). PBT is a milky white translucent to opaque, crystalline thermoplastic polyester. It has high heat resistance, toughness, fatigue resistance, self-lubrication, low friction coefficient, weather resistance, low water absorption, only 0.1%, and still maintains various physical properties (including electrical properties) and electrical insulation in a humid environment. However, volume resistance and dielectric loss are large. Resistant to hot water, alkalis, acids, oils, but easily corroded by halogenated hydrocarbons, poor hydrolysis resistance, rapid crystallization at low temperature, good formability. The disadvantage is that the notched impact strength is low and the molding shrinkage is large. Therefore, most of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/62D01D5/08
Inventor 缪汉根
Owner JIANGSU SHENGHONG CHEM FIBRE CO LTD
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