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Heat-proof PPS (polyphenylene sulfide) filament adopting copper-loaded bergmeal as filling material and preparation and application of heat-proof PPS filament

A technology of polyphenylene sulfide and diatomite, applied in the fields of application, rayon manufacturing, filament/thread forming, etc., can solve the problems of reducing the performance of PPS products, achieve the effect of improving heat resistance and reducing production costs

Active Publication Date: 2012-09-19
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] "Research on the properties of heat-resistant polyphenylene sulfide fibers" (Sheng Qianqian, Zhang Ruiping, Niu Mei, Yang Han, Dai Jinming, Gao Libin, Zi Qirong. Industrial Textiles, 2011, 2: 0023-0027) pointed out that PPS Degradation produces free radicals Further cross-linking and degrading with PPS chains, thereby reducing the performance of PPS products

Method used

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  • Heat-proof PPS (polyphenylene sulfide) filament adopting copper-loaded bergmeal as filling material and preparation and application of heat-proof PPS filament
  • Heat-proof PPS (polyphenylene sulfide) filament adopting copper-loaded bergmeal as filling material and preparation and application of heat-proof PPS filament
  • Heat-proof PPS (polyphenylene sulfide) filament adopting copper-loaded bergmeal as filling material and preparation and application of heat-proof PPS filament

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Make 10g of 2000 mesh (mesh particle size refers to the size of the raw material particles, generally expressed by the maximum length of the particle, 2000 mesh is 6.5μm) diatomite into 800ml suspension, stir well, add 8.25g ascorbic acid and mix well , then add 7.81gCuSO 4 ·5H 2 O, add 2g copper protective agent sodium dodecylbenzene sulfonate (SDBS), at 80 ℃, under the environment of adjusting the pH to 8~9 with NaOH, stir and react at a speed of 400rpm for 2h, take out the slurry and carry out centrifugation or pumping Filter and wash, wash with deionized water for 3 to 5 times, dry, and ball mill into micro-nano powder.

[0044] Diatomaceous earth-loaded copper filler and pure PPS slices (PPS slices are linear PPS, molecular weight distribution index Mw / Mn is 3.0, melt index is 120g / 10min (ASTM D1238-00)) according to the proportion of filler content of 20wt% in 100 °C, kneading and premixing at a speed of 60 rpm to obtain a premix. The premix is ​​extruded with ...

Embodiment 2

[0048] Make 10g of 2000 mesh (mesh particle size refers to the size of raw material particles, generally expressed by the maximum length of particles, 2000 mesh is 6.5μm) diatomite into 800ml suspension, stir evenly, add 16.88g glucose and mix evenly, then add 7.97gCuCl 2 2H 2 O, add 3g of copper protectant sodium dodecyl sulfate (SDS), at 60°C, adjust the pH to 8~9 with NaOH, stir and react at a speed of 400rpm for 2h, take out the slurry for centrifugation or suction filtration and washing , washed with deionized water for 3 to 5 times, dried, and ball-milled into micro-nano powder.

[0049] Diatomaceous earth-loaded copper filler and pure PPS slices (PPS slices are linear PPS, molecular weight distribution index Mw / Mn is 3.0, melt index is 120g / 10min (ASTM D1238-00)) according to the proportion of filler content of 30wt% in 100 °C, kneading and premixing at a speed of 60 rpm to obtain a premix. The premix is ​​extruded with a five-zone temperature-controlled twin-screw e...

Embodiment 3

[0053] Make 10g of 2000 mesh diatomite (mesh particle size refers to the size of raw material particles, generally represented by the maximum length of particles, 2000 mesh is 6.5μm) diatomite into 800ml suspension, stir evenly, add 1.69g potassium borohydride and mix evenly, Then add 3.91g CuSO 4 ·5H 2 O, add 1g of copper protective agent polyethylene glycol (PEG-2000), at room temperature, adjust the pH to 11.5~12.5 with NaOH, stir and react at a speed of 400rpm for 2h, take out the slurry for centrifugation or suction filtration washing, After washing with deionized water for 3~5 times, drying and ball milling into micro-nano powder.

[0054] Diatomaceous earth-loaded copper filler and pure PPS chips (PPS chips are linear PPS, molecular weight distribution index Mw / Mn is 3.0, melt index is 120g / 10min (ASTM D1238-00)) are mixed according to the ratio of filler content of 10wt% at 100 °C, kneading and premixing at a speed of 60 rpm to obtain a premix. The premix is ​​extru...

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Abstract

The invention relates to a heat-proof PPS (polyphenylene sulfide) filament adopting copper-loaded bergmeal as a filling material and the preparation and the application of the heat-proof PPS filament. In the heat-proof PPS filament, the mass content of the copper-loaded bergmeal composite filling material is 5 to 30 percent. A preparation method of the heat-proof PPS filament comprises the following steps: (1) mixing bergmeal with deionized water to preparing a turbid liquid, adding reductant, copper ion contained lyotrope and copper protecting agent, performing reaction, and then performing ball-milling to obtain the micro-nano powdered copper-loaded bergmeal filling material; (2) premixing the micro-nano powdered copper-loaded bergmeal filling material with PPS chips through kneading to obtain premix, then extruding out the premix, and finally palletizing to obtain heat-proof PPS master batches; and (3) drying and crystallizing the heat-proof PPS master batches, performing melt spinning for forming, cooling, applying oil, performing preliminary reeling, and then drawing for shaping to obtain the heat-proof PPS filament. The PPS filament provided by the invention has the advantages of favorable spinnability, excellent heat resistance and wide application prospect.

Description

technical field [0001] The invention belongs to the field of heat-resistant filaments and their preparation and application, in particular to a heat-resistant polyphenylene sulfide filament with diatomite loaded with copper as a filler, and its preparation and application. Background technique [0002] Polyphenylene sulfide (PPS) is a rigid main chain formed by connecting benzene rings to sulfur atoms at the para-position. Due to the existence of large π bonds in the structure, the performance is extremely stable. Polyphenylene sulfide has excellent heat resistance and corrosion resistance; PPS itself has flame retardant and self-extinguishing properties, excellent adhesive properties, and low hygroscopicity. PPS has good dimensional stability, non-toxicity, and good processability. It is widely used in the fields of electronic appliances, machinery, automobiles, chemical anticorrosion, aerospace and military industries. "It is one of the aerospace materials, and compared w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/94D01F1/10D01D1/04D01D5/08D01D5/096D01D5/16D01D10/02B01D46/02A41D13/00A41D31/00C08J5/04
Inventor 朱美芳孟思张须臻胡泽旭陈龙周哲
Owner DONGHUA UNIV
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