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Composition of polyphenylene sulfide and polyamide, and fibers thereof

A technology of polyphenylene sulfide and polyamide, applied in the field of compositions and fibers spun into them, can solve the problems that hyperbranched PPS has no commercial products, poor spinnability, and filaments are prone to appear.

Inactive Publication Date: 2013-01-30
SINOTEX INVESTMENT & DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the special structure and properties of PPS, its melt fluidity is poor, the spinnability is not good, and wool and broken ends are prone to occur in the spinning process.
Chinese patent publication CN1884640A mentions that hyperbranched PPS with lower molecular weight is used to improve melt fluidity, but hyperbranched PPS has no commercial products, and this method is difficult to realize industrialization and commercialization

Method used

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  • Composition of polyphenylene sulfide and polyamide, and fibers thereof
  • Composition of polyphenylene sulfide and polyamide, and fibers thereof
  • Composition of polyphenylene sulfide and polyamide, and fibers thereof

Examples

Experimental program
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preparation example Construction

[0027] The preparation of the composition of the present invention adopts a conventional method in the industry, that is, directly mixing polyamide and linear structure polyphenylene sulfide according to the required ratio.

[0028] The spinning of the fiber of the present invention adopts conventional methods and devices for spinning polyphenylene sulfide fibers in the industry. The spinning process includes in sequence: pre-drying of the spinning raw material (the polyphenylene sulfide composition of the present invention), spinning, and stretching.

[0029] The pre-drying equipment can adopt a drum oven (such as ZG-type dynamic vacuum dryer). The spinning equipment can adopt the melt spinning machine ABEΦ25 of ABE Company of Japan, and the drawing equipment can adopt the drawing machine Barmag 30B of Barmag Spinzwirn Company of Germany.

[0030] Performance Testing

[0031] Spinnability: Measured by the maximum draw ratio and the number of broken ends.

[0032] The maxim...

Embodiment 1

[0038] raw material

[0039] PPS: purchased from Japan Polyplastics Corporation, the product name is 0316C.

[0040] PA66: relative viscosity 2.7

[0041] PA6: intrinsic viscosity 2.8

[0042] spinning equipment

[0043] ZG-type dynamic vacuum dryer (drum oven)

[0044] Melt spinning machine ABEΦ25, purchased from Japan ABE Company

[0045] Stretching machine Barmag 30B, purchased from Germany Barmag Spinzwirn company

[0046] Instruments for testing fiber breaking strength and elongation at break: Shimadzu AGS500 fiber strength machine, purchased from Japan Shimadzu Corporation

[0047] Preparation of the composition: uniformly mix 1 part by weight of the above-mentioned PA66 and 99 parts by weight of the above-mentioned PPS in a mixer.

[0048] Fiber Preparation

[0049] Pre-drying: Put the PET and PPS composition obtained by mixing above in a ZG-type dynamic vacuum dryer, and pre-dry at 150° C. for 72 hours.

[0050] Spinning and drawing:

[0051] Spinning is carri...

Embodiment 2

[0065] The raw materials and steps are the same as in Example 1, except that 3 parts by weight of PA66 and 97 parts by weight of PPS are used to prepare the composition and perform spinning.

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Abstract

The invention discloses a composition of polyphenylene sulfide and polyamide, and fibers thereof. The composition comprises 95-99 wt% of polyphenylene sulfide and 1-5 wt% of polyamide. The composition has an improved spinnability, few broken filaments and broken ends when spinning, and nearly no decrease of the mechanical properties of the spun fibers.

Description

technical field [0001] The invention relates to a composition of polyphenylene sulfide and polyamide and fiber thereof, in particular to a composition of polyphenylene sulfide and polyamide with spinnability and the fiber spun. Background technique [0002] Polyphenylene sulfide (PPS) is a high molecular compound with sulfur atoms. It has a melting point of 280-290°C and a thermal decomposition temperature of about 430°C. It can be used for a long time at 230°C. It has high temperature resistance, radiation resistance and flame retardancy. , High dimensional stability, good flux resistance and chemical corrosion resistance, excellent dielectric properties and wear resistance and other characteristics. [0003] Therefore, polyphenylene sulfide fiber is widely used in the filtration system of acid waste gas in power plants and various protective clothing. [0004] However, due to the special structure and properties of PPS, its melt fluidity is poor, the spinnability is not g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08L77/00C08L77/02C08L77/06D01F6/94
Inventor 刘森林张士全季平夏卫江俞建国
Owner SINOTEX INVESTMENT & DEV CO LTD