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Light-fastness polyphenylene sulfide (PPS) fiber

A polyphenylene sulfide fiber, light resistance technology, applied in the direction of fiber chemical characteristics, single-component synthetic polymer rayon, textiles and papermaking, etc., can solve the problem of small effect, poor light resistance, small molecular weight of benzotriazole, etc problem, to achieve the effect of small index value and good illumination stability

Inactive Publication Date: 2012-12-26
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the molecular weight of benzotriazole is too small, and the sublimation temperature is only 100 degrees. It loses a lot in the granulation process of light stabilizer and blending process with PPS resin, and plays a very small role.
[0005] In addition, literature 1001-0041 (2008) 03-0008-04 proposed that adding benzotriazole or nano-titanium dioxide or a mixture of the two to PPS can make PPS light-resistant The reference data found that the improvement effect was not obvious. In order to verify the effect, the author of this article tested according to the content of the literature and found that the improvement effect was not obvious. Under the JIS-L0842 standard, the light resistance is only level 1, and it cannot be used as clothing fabrics at all.
[0006] In summary, PPS fiber has superior thermal insulation performance, but poor light resistance; there is an urgent need for an invention that can prepare PPS fibers with light resistance, so that the use of PPS fibers in clothing has also been expanded

Method used

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  • Light-fastness polyphenylene sulfide (PPS) fiber
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  • Light-fastness polyphenylene sulfide (PPS) fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Add benzotriazole ultraviolet absorber LA-31, hindered amine light stabilizer (HALS) LA-52 and antioxidant S-9228 to polyphenylene sulfide resin (Mw=50800). Wherein the content of LA-31 accounts for 4 wt% of the total fiber, the content of LA-52 accounts for 0.1 wt% of the total fiber, and the content of S-9228 accounts for 0.1 wt% of the total fiber. Blending and granulation by a screw extruder, spinning after drying, and the light fastness of the obtained fiber is grade 3 after light fastness evaluation. ΔE was 2.23.

Embodiment 2

[0053] Add LA-31, LA-52 and S-9228 to polyphenylene sulfide resin (Mw=50800), wherein LA-31, LA-52, S-9228 account for 4wt%, 0.5wt%, 0.5wt% of the overall fiber respectively wt%. Blending and granulation by a screw extruder, spinning after drying, and the light fastness of the obtained fiber is grade 3 after light fastness evaluation. ΔE was 2.10.

Embodiment 3

[0055] Add LA-31, LA-52 and S-9228 to polyphenylene sulfide resin (Mw=50800), wherein LA-31, LA-52, S-9228 account for 4wt%, 1.5wt%, 2.0wt% of the overall fiber respectively wt%. Blending and granulation by a screw extruder, spinning after drying, and the light fastness of the obtained fiber is grade 3 after light fastness evaluation. ΔE was 2.12.

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Abstract

The invention provides a high-light-fastness polyphenylene sulfide (PPS) fiber which contains 4-10 wt% of benzotriazole derivative A (relative to the total weight of fiber), 0.1-1.5 wt% of hindered amine light stabilizer B, 0.1-2.0 wt% of tervalent-phosphorus antioxidant C and the balance of PPS resin. After adding the light stabilizer composed of an ultraviolet absorbent, a photostabilizer and an antioxidant, the light fastness of the PPS fiber reaches Grade 3 or above, the index value of delta E is low, and the light stability is high. The invention well solves the problem of poor light fastness in the PPS fiber, so that the PPS fiber has wide application prospects in the aspect of clothing.

Description

technical field [0001] The invention relates to a light-resistant polyphenylene sulfide fiber. Background technique [0002] Polyphenylene sulfide fiber (PPS fiber) is a functional special fiber. Generally, it is made of polyphenylene sulfide resin (PPS resin) by conventional melt spinning method, and then stretched, crimped and cut at high temperature. PPS fiber has excellent thermal stability and flame retardancy, the oxygen index value is 34-35, the strength retention rate is 60% at 200°C, and the elongation at break does not change; the chemical resistance is second only to polytetrafluoroethylene fiber; Good textile processing properties. At present, PPS fiber is mainly used in the preparation of high-temperature flue gas and filtration of special heat medium, drying belt of paper industry, cable covering layer and fireproof fabric, etc. [0003] Although polyphenylene sulfide fiber has good thermal insulation performance, it has poor light fastness, so it is difficu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/94D01F1/10
Inventor 张磊望月克彦李旭
Owner TORAY FIBER RES INST(CHINA) CO LTD