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Multistage stretching heat shaping method of polyphenylene sulfide filament

A technology of polyphenylene sulfide and heat setting, which is applied in the direction of textiles and papermaking, can solve the problems of being unsuitable for industrial production, staying in the experimental stage, and less filament production, so as to improve production stability, stabilize the aggregate structure, The effect of stable production process

Active Publication Date: 2015-04-22
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation of domestic PPS fibers is mainly based on short fibers, involving less filament production and research, and they are still in the experimental stage, and the obtained technology is not suitable for industrial production.

Method used

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  • Multistage stretching heat shaping method of polyphenylene sulfide filament
  • Multistage stretching heat shaping method of polyphenylene sulfide filament
  • Multistage stretching heat shaping method of polyphenylene sulfide filament

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Embodiment Construction

[0029] figure 1 Shown is the polyphenylene sulfide filament multi-stage stretching heat setting device used in the present invention, which includes the following components arranged in sequence: wire bobbin frame 1, first wire guide rod 3, second guide wire Rod 5, roller front rotor 6, roller, I disk 10, II disk 11, III disk 12, high temperature hot plate 13, IV disk 14, traverse device 15, friction roller 16 and wire drum 17. Wherein, the rubber apron 7 and the guide roller 8 of pressing contact are arranged on the roller. The polyphenylene sulfide primary fiber (PPS-UDY) reel 2 is placed on the wire reel frame 1, and the rotation of the rollers and all the hot plates is driven by the frequency conversion motor 9. The wheelbase between rollers and Ι is 350mm, the wheelbase between Ι and Ⅱ is 450mm, the wheelbase between Ⅱ and Ⅲ is 550mm, and the wheelbase between Ⅲ and Ⅳ is 750mm. The fineness of a single fiber is 15-17dtex.

[0030] A multi-stage drawing heat-setting met...

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Abstract

The invention relates to a multistage stretching heat shaping method of a polyphenylene sulfide filament. A polyphenylene sulfide nascent fiber (PPS-UDY fiber) is adopted, the structural characteristic of the PPS-UDY fiber is utilized, drafting areas and drafting temperature are reasonably distributed through cold drafting, multi-area heat drafting, high-temperature tightening heat shaping, cooling area lengthening, winding forming and other composite technologies, the dimension stability of the PPS filament is controlled through high-temperature tightening heat shaping, the spinnability of the PPS fiber is improved, the breakage and roll winding rate of a broken filament is reduced, the production process of the PPS filament is stable, the orientation degree and crystallinity degree are improved, the aggregation structure is more stable, the production stability and effective drafting multiple of the PPS filament are improved, and the mechanical property and yarn levelness are improved.

Description

technical field [0001] The invention relates to the technical field of preparation of differentiated high-performance fiber materials, in particular to a multi-stage stretching heat setting method for polyphenylene sulfide (PPS) filaments. Background technique [0002] Polyphenylene sulfide (PPS) fiber has many excellent properties, such as its own flame retardancy, good thermal stability, chemical resistance, insulation performance and excellent mechanical properties, and is widely used in thermal power generation, chemical industry, building materials, metallurgy , aerospace and other fields. At present, the preparation of domestic PPS fibers is mainly based on short fibers, involving less filament production and research, and they are still in the experimental stage, and the obtained technology is not suitable for industrial production. With the increasing pressure of environmental protection, the domestic demand for PPS fiber will further increase significantly. A matu...

Claims

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Application Information

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IPC IPC(8): D02J1/22D02J13/00
CPCD02J1/228D02J13/005
Inventor 张蕊萍连丹丹戴晋明张勇黄玉莲高立斌
Owner TAIYUAN UNIV OF TECH
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