Stretch-tension-relax setting method for polyphenyl thioether short fibre
A polyphenylene sulfide, relaxation and setting technology, applied in fiber processing, fiber chemical characteristics, melt spinning, etc., can solve the problems of fiber stretching process difficulties after melt spinning, high melting point, high crystallinity, etc., and achieve breaking strength High, excellent dry heat shrinkage performance, high production rate
Active Publication Date: 2010-11-10
JIANGSU RUITAI SCI & TECH +1
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Problems solved by technology
Due to the backward research and development of fiber-grade polyphenylene sulfide in China, there are not many researches on melt spinning of polyphenylene sulfide. In addition, the physical properties of polyphenylene sulfide itself, such as: high melting point, high crystallinity, It also creates difficulties for the post-stretching process of fiber melt spinning
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
Embodiment 2
Embodiment 3
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Abstract
The invention discloses a stretching-stressing-looseness shaping method of polyphenyl thioether short fibre, which includes steps of oil / water-bath prewarming, first drafting, oil bath traction, second drafting, high temperature high-pressure steam traction, third high temperature high-pressure steam drafting, high temperature heat diffusion oil heat roll stress shaping, high temperature high compressing mechanical curling, and high temperature looseness thermal shaping, wherein, the stretching multiple is from 1.5 to 8 times, the first drafting ratio is from 1 to 5, the second drafting ratio is from 0.5 to 2, and the third drafting ratio is from 0.1 to 1.5. The polyphenyl thioether short fibre produced by the inventive stretching-stressing-looseness shaping method of polyphenyl thioether short fibre has high yield rate, high breakingstress, better dry heat contract performance at 200 EDG C, and being suitable for the industrial production.
Description
A stretch-tension-relaxation setting method for polyphenylene sulfide staple fiber 1. Technical field The invention relates to a stretch-tension-relaxation shaping method of chemical fibers, more particularly to a stretch-tension-relaxation shaping method of polyphenylene sulfide short fibers. 2. Background technology Polyphenylene sulfide fiber has excellent long-term heat resistance, chemical corrosion resistance that is almost insoluble in any chemical reagents at 200 ° C, and excellent resistance to UL-94V-0 without adding any flame retardants. Combustibility, it has been recognized as the main filter material with special functions abroad, such as the filter fabric for dust filter bags of coal-fired boilers and garbage incinerators in industrial thermal power plants. Due to the backward research and development of fiber-grade polyphenylene sulfide in China, there are not many researches on melt spinning of polyphenylene sulfide. In addition, the physical properties o...
Claims
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IPC IPC(8): D01F6/58D01D5/084D01D5/098D02G1/00D02J1/22D06C7/02D02J13/00
Inventor 王桦蒲宗耀覃俊马志强陈松许久峰徐宇斌
Owner JIANGSU RUITAI SCI & TECH