Composite polyphenylene sulfide resin and preparation method thereof

A polyphenylene sulfide resin and polyphenylene sulfide technology are applied in the field of composite polyphenylene sulfide resin and its preparation, which can solve the problems of low glass transition temperature, low elongation, low impact strength and the like, and achieve low cost , the preparation method is simple

Inactive Publication Date: 2010-12-22
SHENZHEN HALCYON NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high crystallization characteristics of polyphenylene sulfide, it is hard, brittle, poor in toughness, low in elongation and low in impact strength; it is easy to chemically react with oxygen in the air during the melting process, making the viscosity unstable; amorphous phase Low glass transition temperature; unsatisfactory coating and coloring properties
These shortcomings seriously restrict its application in the fields of automobiles, electronic appliances, machinery and chemicals.

Method used

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  • Composite polyphenylene sulfide resin and preparation method thereof
  • Composite polyphenylene sulfide resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] As shown in Table 1, accurately weigh 350 grams of polyphenylene sulfide, 300 grams of glass fiber, 230 grams of calcium carbonate whiskers, 50 grams of muscovite powder, 50 grams of talcum powder, 1 gram of NC-4 [di(p-ethyl Benzylidene) sorbitol], 6 grams of N, N'-hexamethylene bis (3,5-di-tert-butyl-4-hydrocarbyl phenylpropanamide and 4 grams of pentaerythritol bis-diphosphite bis (2,4 - a mixture of di-tert-butylphenyl) esters, 7 grams of ethylene bis fatty acid amide, and 2 grams of γ-aminopropyltriethoxysilane. Add polyphenylene sulfide to the mixer, followed by γ-aminopropyl Triethoxysilane, pre-mixed for 2-3 minutes, then add all other raw materials except glass fiber, and continue to mix for 3-6 minutes. Twin-screw extruder extrudes the pre-mixed raw materials, and the temperature of one zone is 270 ° C. The temperature of the second zone is 280°C, the temperature of the third zone is 290°C, the temperature of the fourth zone is 290°C, the temperature of the fif...

Embodiment 2

[0021] As shown in Table 1, accurately weigh 600 grams of polyphenylene sulfide, 300 grams of glass fiber, 60 grams of calcium carbonate whiskers, 10 grams of muscovite powder, 10 grams of talcum powder, 2 grams of sodium benzoate, 4.2 grams of 1,3, 5-tris(4-tert-butyl-3-hydrocarbyl-2,6-dimethylphenyl)-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione Mixture with 2.8 grams of dilauryl thiodipropionate, 10 grams of stearic acid, and 1 gram of gamma-glycidoxypropyltrimethoxysilane. Add polyphenylene sulfide to the mixer, followed by gamma-glycidoxypropylene trimethoxysilane, pre-mix for 2-3 minutes, then add all other materials except glass fiber, continue mixing for 3-6 minutes. The twin-screw extruder extrudes pre-mixed raw materials, the temperature of the first zone is 260°C, the temperature of the second zone is 290°C, the temperature of the third zone is 300°C, the temperature of the fourth zone is 290°C, the temperature of the fifth zone is 280°C, and the temperature of the sixth z...

Embodiment 3

[0023] As shown in Table 1, accurately weigh 480 grams of polyphenylene sulfide, 350 grams of glass fiber, 100 grams of calcium carbonate whiskers, 30 grams of muscovite powder, 20 grams of talcum powder, 1.2 grams of NC-4 [di(p-ethyl A mixture of benzylidene)sorbitol and 1.8 grams of sodium benzoate, 6 grams of 4,4'-thiobis(2,6-tert-butylphenol), 1 gram of pentaerythritol stearate, and 4 grams of tris(N- A mixture of isopropyl β-aminoethyl-β-aminoethyl) titanate and 6 g of γ-glycidyloxypropyltrimethoxysilane. Add polyphenylene sulfide to the mixer, then add tris(N-β-aminoethyl-β-aminoethyl)isopropyl titanate and γ-glycidyl etheroxypropylenetrimethoxysilane, pre-mix 2- 3 minutes, then add all other ingredients except fiberglass and continue mixing for 3-6 minutes. The twin-screw extruder extrudes pre-mixed raw materials, the temperature of the first zone is 265°C, the temperature of the second zone is 285°C, the temperature of the third zone is 290°C, the temperature of the f...

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Abstract

The invention provides a composite polyphenylene sulfide resin which is prepared from the following raw materials in weight percent: 35-60% of polyphenylene sulfide, 30-50% of glass fiber, 5-30% of calcium carbonate whisker, 1-5% of muscovite powder, 1-5% of talc powder, 0.1-1% of nucleating agent, 0.1-1% of antioxidant, 0.1-1% of lubricant and 0.1-1% of coupling agent. The preparation method of the composite polyphenylene sulfide resin comprises the following steps: a. premixing the raw materials apart from the glass fiber in a mixer; b. extruding the premixed raw materials by a double-screw extruder; c. after the premixed raw materials are extruded from an extruder head, adding the glass fiber to the raw materials from a glass fiber opening; and d. cooling and palletizing. The composite polyphenylene sulfide resin of the invention has excellent mechanical property, simple preparation method and low cost.

Description

technical field [0001] The invention relates to a composite polyphenylene sulfide resin and a preparation method thereof. Background technique [0002] Polyphenylene sulfide is an aromatic crystalline polymer containing sulfur in the molecular chain, which has excellent high temperature stability, flame retardancy, chemical corrosion resistance and good electrical properties. However, due to the high crystallization characteristics of polyphenylene sulfide, it is hard, brittle, poor in toughness, low in elongation and low in impact strength; it is easy to chemically react with oxygen in the air during the melting process, making the viscosity unstable; amorphous phase The glass transition temperature is low; the coating and coloring properties are not ideal. These shortcomings seriously restrict its application in the fields of automobiles, electronic appliances, machinery and chemicals. It is necessary to improve its strength, toughness and other properties without affect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08K13/04C08K7/14C08K3/26C08K7/10C08K3/34
Inventor 赖华林王强
Owner SHENZHEN HALCYON NEW MATERIALS
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