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PP composite material with low VOC and preparation method thereof

A technology of composite materials and parts by weight, which is applied in the field of automotive materials, can solve the problems of materials not having low VOC, and achieve the effects of low preparation cost, simple compounding process and processing process, and strong market competitiveness

Inactive Publication Date: 2017-04-26
上海奇彩塑胶原料有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] Patent CN103740028A discloses a creep-resistant, heat-oxidative aging-resistant polypropylene composition and its preparation method. Although this solution has the characteristics and effects of heat-oxidative aging resistance, the material does not have the characteristics of low VOC

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  • PP composite material with low VOC and preparation method thereof
  • PP composite material with low VOC and preparation method thereof
  • PP composite material with low VOC and preparation method thereof

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preparation example Construction

[0055] The preparation method of making the PP composite material of low VOC according to above-mentioned component distribution ratio, steps are as follows:

[0056] 1) take each component by weight parts;

[0057] 2) Mix the polypropylene, toughening agent, nucleating agent, primary antioxidant, auxiliary antioxidant, light stabilizer, heat-resistant aging agent, lubricant, and adsorbent in a high-speed mixer for 3 minutes ~5 minutes, then add talcum powder and mix for 5 minutes to 10 minutes;

[0058] 3) Put the mixed material into the main feeding port of the twin-screw extruder with a length-to-diameter ratio of 36:1-42:1, melt and extrude to granulate, and the extruded material is cooled, air-dried, pelletized and dried , that is, the finished product, wherein, the twin-screw extruder adopts an extruder with seven working temperature zones, the temperature setting range is 170°C-200°C, the screw speed is 200rpm-500rpm, and the end vacuum is -0.06MPa ~-0.09MPa.

[0059...

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Abstract

The invention relates to the technical field of vehicle materials, in particular to a PP composite material with a low VOC and a preparation method thereof. The PP composite material with the low VOC is prepared from, by weight, 100 parts of polypropylene, 10-30 parts of talcum powder, 5-15 parts of toughening agent, 0.1-0.4 part of nucleating agent, 0.1-0.5 part of main antioxidant, 0.1-0.5 part of auxiliary antioxidant, 0.1-0.5 part of lubricating agent, 0.1-0.5 part of light stabilizer, 1-5 parts of adsorbing agent and 1-5 parts of thermal ageing stabilizer. The preparation method of the composite material has a simple compounding process and a simple processing simple, and the composite material is easy to process and prepare; the feature of the low VOC can be achieved through common equipment, thermal oxidation resistance is quite good, and in other words, pulverization can be avoided even if the composite material stays for 700 hours in an air blast drying oven at the temperature of 150 DEG C.

Description

technical field [0001] The invention relates to the technical field of vehicle materials, in particular to a low-VOC PP composite material and a preparation method thereof. Background technique [0002] Polypropylene (PP) has the advantages of low density, high hardness and high heat distortion temperature. Because of its easy processing and low price, it is widely used in the fields of auto parts manufacturing and other fields. With the increasingly stringent requirements for material performance in the automotive industry, environmentally friendly low-VOC materials have become one of the hot spots and directions for the development of automotive parts. The main reasons for the generation of VOC in modified PP composite materials for automobiles are: (1) PP material itself: general PP resin is produced by organic peroxide degradation method, and the residual peroxide in the resin will react to form alcohol, Organic volatiles such as aldehydes; (2) Production of processing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/08C08K13/04C08K3/34C08K5/52C08K5/134C08K5/526C08K5/20C08K5/098C08K5/3475C08K7/26C08K3/22C08K3/26
CPCC08L23/14C08L2201/08C08L2205/02C08L23/0815C08K13/04C08K3/34C08K5/52C08K5/1345C08K5/526C08K5/20C08K5/098C08K5/3475C08K7/26C08K2003/222C08K3/26
Inventor 刘伯林李庆刘英丁巳
Owner 上海奇彩塑胶原料有限公司
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