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Fiber glass enhanced polypropylene material with high ageing ressistance of anti heat and oxygen

A polypropylene material and thermal oxygen aging technology, which is applied in the field of glass fiber reinforced polypropylene composite materials with high thermal oxygen aging resistance, can solve the problem that the antioxidant system is difficult to achieve the desired effect, and achieve excellent thermal oxygen aging resistance , Excellent physical and mechanical properties, simple preparation process

Inactive Publication Date: 2005-11-16
SHANGHAI PRET COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of automobiles and household appliances, many parts are thin-walled parts with a wall thickness of about 2 mm. Therefore, for these parts with thin walls and high requirements for thermal and oxidative aging resistance, ordinary antioxidants The system is difficult to achieve the desired effect
[0004] Regarding the research and discussion in this aspect, there have not been targeted detailed reports in the relevant literature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Dry-mix 54.3% polypropylene, 15% maleic anhydride grafted polypropylene, DSTP0.3%, 31140.3% and 6180.1% in a high-speed mixer for 3-5 minutes, and then in a twin-screw extruder It is blended with 30% glass fiber treated with coupling agent KH550 on the surface, melted and extruded, and granulated. The temperature range is 205-215°C; the residence time is 1-2 minutes, and the pressure is 12-18Mpa.

Embodiment 2

[0039]Dry-mix 54.0% polypropylene, 15% maleic anhydride grafted polypropylene, DSTP0.6%, 31140.3% and 6180.1% in a high-speed mixer for 3-5 minutes, and then in a twin-screw extruder It is blended with 30% glass fiber treated with coupling agent KH550 on the surface, melted and extruded, and granulated. The temperature range is 205-215°C; the residence time is 1-2 minutes, and the pressure is 12-18Mpa.

Embodiment 3

[0041] Dry-mix 53.7% polypropylene, 15% maleic anhydride grafted polypropylene, DSTP0.9%, 31140.3% and 6180.1% in a high-speed mixer for 3-5 minutes, and then in a twin-screw extruder It is blended with 30% glass fiber treated with coupling agent KH550 on the surface, melted and extruded, and granulated. The temperature range is 205-215°C; the residence time is 1-2 minutes, and the pressure is 12-18Mpa.

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Abstract

A glasls fibre reinforced polypropene material with high refractory, antioxidizing and antiageing performance is prepared proportionally from polypropene, maleic anhydride grafted polypepen, glass fibres, stabilizer DSTP, stabilizer '3114' and stabilizer '618'.

Description

technical field [0001] The present invention relates to a glass fiber reinforced polypropylene composite material with high thermal oxygen aging resistance performance, and more specifically relates to preparing a high thermal oxygen aging resistance by adding a three-component stabilizer system that can effectively improve the thermal oxygen aging performance of the material. Thermo-oxidative aging properties of glass fiber reinforced polypropylene composites. The invention also relates to a method for preparing the composite material. Background technique [0002] Polypropylene material has high rigidity, low relative density, high tensile strength, good stress crack resistance and chemical resistance, so it has been widely used in automobiles, home appliances, medical and other fields. Moreover, after the polypropylene material is filled or reinforced, its physical and mechanical properties, such as strength, rigidity, material dimensional stability and heat resistance, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12
Inventor 翁永华张祥福周文
Owner SHANGHAI PRET COMPOSITES
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