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Polyphenylene sulfide compound film or fiber and manufacture method thereof

A polyphenylene sulfide and composite film technology, applied in the direction of single-component synthetic polymer rayon, fiber chemical characteristics, textiles and papermaking, can solve the problem of low toughness and tensile elongation at break, polyphenylene sulfide phase Limited capacity, product toughness, and low strength, etc., to achieve the effect of high structural strength

Active Publication Date: 2010-12-22
四川中科兴业高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the strength and toughness of these admixtures are not very high, and the compatibility with polyphenylene sulfide is also very limited, and the toughness and strength of the products are still not very high.
Especially when used as film and fiber, the toughness and tensile elongation at break are low, which cannot meet the requirements of use
For example, a Chinese patent discloses a manufacturing method of polyphenylene sulfide film (application number: 200580038776.1). However, the problems of toughness and elongation at break of the polyphenylene sulfide film manufactured by this method have not been fundamentally solved.

Method used

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  • Polyphenylene sulfide compound film or fiber and manufacture method thereof

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preparation example Construction

[0046] The preparation of the above-mentioned polyphenylene sulfide resin containing aromatic heterocycles uses sodium sulfide, p-dichlorobenzene, 2-(4-chlorophenyl)-5-chlorohydrin with a molar ratio of 1:0.6-0.9:0.4-0.1 Benzimidazole is used as raw material, N-methyl-2-pyrrolidone is used as solvent, and it is synthesized by polycondensation under the action of alkali metal co-solvent.

[0047] Owing to use 2-(4-chlorophenyl)-5-chlorobenzimidazole as raw material, obtain the polyphenylene sulfide resin containing aromatic heterocycle that polydispersity coefficient is lower, and molecular weight distribution is very narrow, the resin's Crystallinity, whiteness, mechanical strength, melt viscosity, oxygen index, polydispersity coefficient are more excellent.

[0048] 1. Synthesis example of polyphenylene sulfide resin containing aromatic heterocycle

example 1

[0050]In the autoclave, 120 kilograms of N-methyl-2 pyrrolidone (NMP) is a solvent, 42 kilograms of sodium sulfide (Na2S.3H2O) is added, 0.1 kilogram of lithium aluminum hydride (auxiliary agent), under the pressure of 0.01Mpa nitrogen, while Stir, while raising the temperature, take 2 hours to rise to 203 ° C for dehydration, add 24.9 kg of p-dichlorobenzene, 20 kg of NMP, and react at a temperature of 200 ° C for 3 hours, then add 29.9 kg of 2-(4-chlorophenyl )-5-chlorobenzimidazole (abbreviated as DCPBI), so that the mol ratio of sodium sulfide to p-dichlorobenzene and 2-(4-chlorophenyl)-5-chlorobenzimidazole is 1: 0.6: 0.4. When the temperature is 280°C, react for 4 hours, and under the condition of this temperature, add 0.36 kg of p-aminochlorobenzene, cool to 185°C after 2 hours of polymerization reaction, add 0.46 kg of terephthalic acid and heat up to 250°C for treatment After 1 hour, cool to 200°C, add 0.08 kg of deionizing agent mixture ethylenediaminetetraacetic ac...

example 2

[0052] In the autoclave, add 60 kilograms of N-methyl-2 pyrrolidone (NMP), 21.5 kilograms of sodium sulfide (Na2S.3H2O), 0.05 kilograms of lithium aluminum hydride (auxiliary agent), and stir under the pressure of 0.01Mpa nitrogen, While raising the temperature, take 8 hours to rise to 190°C for dehydration, add 18.3 kg of p-dichlorobenzene, 10 kg of NMP, and react at a temperature of 280°C for 1 hour, then add 3.75 kg of 2-(4-chlorophenyl)- 5-chlorobenzimidazole, like this, the molar ratio of sodium sulfide to p-dichlorobenzene and 2-(4-chlorophenyl)-5-chlorobenzimidazole is 1:0.9:0.1. When the temperature is 280°C, react for 6 hours, and under the condition of this temperature, add 0.89 kg of p-aminochlorobenzene, cool to 185°C after 2 hours of polymerization, add 0.75 kg of terephthalic acid and heat up to 250°C for treatment After 1 hour, cool to 100°C, add 0.54 kg of deionizing agent mixture ethylenediaminetetraacetic acid, and keep stirring for 1 hour, filter at 100°C an...

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Abstract

The invention relates to a polyphenylene sulfide compound film or fiber and a manufacture method thereof. The film or fiber comprises the following raw materials in percentage by weight: 60-90 percent of polyphenylene sulfide resin, 0-35 percent of polyphenylene sulfide resin containing aromatic heterocyclic rings, 0.5-0.7 percent of heat stabilizer, 0.4-0.8 percent of antioxidant, 3-5.8 percent of high polymer material, 0.2-0.6 percent of inorganic filler and 0.5-2.5 percent of organic filler. The manufacture method comprises the following steps of: pretreating the polyphenylene sulfide resin and the polyphenylene sulfide resin containing the aromatic heterocyclic rings, then adding the heat stabilizer and uniformly mixing for granulating and molding; drying obtained granules, adding the antioxidant, the high polymer material, the inorganic filler and the organic filler, and uniformly mixing; and finally, extruding the mixed material into films or fibers by using an extruder. The film or the fiber has the advantages of excellent insulating property and high self structural strength, and the toughness and the tensile breaking elongation of the film or the fiber are obviously superior to that of the film or the fiber manufactured in the prior art.

Description

[0001] The original application number of this divisional application is 2008100465751, the filing date is November 17, 2008, and the title of the invention is "Polyphenylene Sulfide Copolymer Containing Aromatic Heterocycle and Its Preparation Method, Application and Product". technical field [0002] The invention relates to polyphenylene sulfide, in particular to a polyphenylene sulfide composite film / fiber and a preparation method thereof. Background technique [0003] With the advancement of science and technology and the development of society, people are developing and applying new technologies and materials more and more widely, and the requirements for electronic and electrical insulation materials are getting higher and higher, especially those with high temperature resistance and hydrolysis resistance. electrical insulating material. [0004] Polyphenylene sulfide has excellent chemical corrosion resistance and thermal stability at high temperature, very low water...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08L23/06C08L23/12C08L27/18C08L69/00C08L23/08C08L67/00C08K13/02D01F6/94
Inventor 陈逊
Owner 四川中科兴业高新材料有限公司
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