Copper toxicity-resistant glass fiber reinforced polypropylene composite material and preparation method thereof

A technology of composite materials and polypropylene, applied in the field of engineering plastics, to achieve the effects of strong adhesion, reduced activity, and excellent mechanical properties

Inactive Publication Date: 2010-04-28
KINGFA SCI & TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on the copper damage resistance of glass fiber reinforced polypropylene

Method used

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  • Copper toxicity-resistant glass fiber reinforced polypropylene composite material and preparation method thereof
  • Copper toxicity-resistant glass fiber reinforced polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A glass fiber reinforced polypropylene composite material resistant to copper damage, which is composed of the following raw materials in percentage: high crystalline polypropylene 65%; compatibilizer 2.1%; composite antioxidant 0.8%; processing aid 0.1%; glass fiber 32%.

[0024] The compatibilizer is glycidyl methacrylate grafted polypropylene. Described composite antioxidant is A+B type, and wherein, A is 0.4% four ( -(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid)pentaerythritol ester; B consists of 0.2% bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite and 0.2% antioxidant Dosage 300 Composition. Described processing aid is ethylene bis stearic acid amide. The glass fibers are short glass fibers of 3-5 cm.

[0025] The preparation method of the above-mentioned copper damage-resistant glass fiber reinforced polypropylene composite material, the specific steps are: firstly mix polypropylene, compatibilizer, composite antioxidant and processing aid in a ...

Embodiment 2

[0028] A glass fiber reinforced polypropylene composite material resistant to copper damage, which is composed of the following raw materials in percentage: high crystalline polypropylene 60%; compatibilizer 7%; composite antioxidant 2%; copper damage resistance 0.2%; processing Additive 0.8%; glass fiber 30%.

[0029] The compatibilizer is maleic anhydride grafted polypropylene. Described composite antioxidant is A+B type, and wherein, A is 1% four ( -(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid)pentaerythritol ester; B consists of 0.5% bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite and 0.5% antioxidant Agent 1035 composition. The anti-copper poisoning agent is a high-efficiency metal deactivator with a hydrazide structure. The processing aid is an anti-fiber exposure agent. The glass fibers are short glass fibers of 3-5 cm.

[0030] The preparation method of the above-mentioned copper damage-resistant glass fiber reinforced polypropylene composite materia...

Embodiment 3

[0033] A glass fiber reinforced polypropylene composite material resistant to copper damage, which is composed of the following raw materials in percentage: high crystalline polypropylene 62.5%; compatibilizer 3.5%; composite antioxidant 1.4%; copper damage resistance agent 0.1%; processing Additive 0.5%; glass fiber 32%.

[0034] The compatibilizer is maleic anhydride grafted styrene-ethylene-butylene-styrene block copolymer. Described composite antioxidant is A+B type, and wherein, A is 0.7% four ( -(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) pentaerythritol; B is 0.7% bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite. The anti-copper poisoning agent is an efficient metal deactivator with a hydrazide structure. The processing aids are 0.2% ethylene bis stearic acid amide and 0.3% anti-fiber exposure agent. The glass fibers are short glass fibers of 3-5 cm.

[0035] The preparation method of the above-mentioned copper damage-resistant glass fiber reinforced poly...

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Abstract

The invention relates to a copper toxicity-resistant glass fiber reinforced polypropylene composite material and a preparation method thereof, and the copper toxicity-resistant glass fiber reinforced polypropylene composite material consists of the following raw materials by weight percent: 60-65% of polypropylene, 2-7% of compatilizer, 0.7-2% of composite antioxidant, 0-0.02% of anti-copper toxicity agent, 0.1-0.8% of processing additives and 30-35% of glass fibers. The preparation method comprises the following steps: firstly mixing the polypropylene, the compatilizer, the composite antioxidant, the anti-copper toxicity agent and the processing additives in a high mixing machine, feeding into a twin-screw extruder via a precision meter, further adding the short glass fibers into the extruder via the meter after the materials in the extruder are softened, then melting, extruding and granulating, wherein the extrusion temperature is 200-220 DEG C. The bonding force between the polypropylene and a glass fiber interface is strong, and the product has the advantages of excellent mechanical performances, no obvious surface fiber revealed phenomenon, excellent heat aging resistance and excellent anti-copper toxicity performance; furthermore, the product almost has no loss of the mechanical performances when baking in a baking oven at 150 DEG C for 1000h.

Description

technical field [0001] The invention belongs to the technical field of engineering plastics, and relates to a copper damage-resistant glass fiber reinforced polypropylene composite material and a preparation method thereof. Background technique [0002] In recent years, various modification technologies for polypropylene resin have developed rapidly, which has greatly broadened the application fields of polypropylene materials. Different uses have different specific requirements for materials. For polypropylene materials, thermal-oxidative aging performance is an important indicator. Unmodified polypropylene has poor thermal and oxidative aging resistance, and performance deterioration may occur during its storage, processing and use, such as yellowing, loss of luster, surface cracking, and significant decline in mechanical properties Wait. The thermal oxidation process of polypropylene materials is carried out through a typical free radical-induced chain scission mechanis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K5/24
Inventor 王灿耀黄达李晟罗忠富杨燕李永华陈瑶叶南飚
Owner KINGFA SCI & TECH CO LTD
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