Polypropylene composite material for automobile interior decoration, and preparation method thereof

A technology for composite materials and automotive interiors, which is applied in the field of polypropylene composite materials for automotive interiors and its preparation, which can solve the problems of reduced VOC content, increased production costs, and poor scratch resistance, and achieves low VOC content and high production efficiency. Effect of low cost and improved scratch resistance

Inactive Publication Date: 2018-08-24
QINGDAO GON TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: Chinese patent CN102372873A discloses a low-odor, low-VOC, high-performance polypropylene composite material for automotive interiors. The raw material composition of the polypropylene composite material is 50-90% polypropylene and 0-40% inorganic filler , Toughener 5-15%, Compatibilizer 5-10%, Odor Adsorption Masterbatch 0.5-5%, Antioxidant 0.1-1.0%, Color Masterbatch 1.0-2.5%, by optimizing low-odor resin raw materials and additives , and use odor-absorbing masterbatches to achieve the effect of low odor and low VOC content, however, the scratch resistance of the polypropylene composite material is poor and cannot meet the requirements of the vulnerable automotive interior environment
Chinese patent CN104448571A discloses a low-VOC scratch-resistant polypropylene composite material for automobile interior decora

Method used

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  • Polypropylene composite material for automobile interior decoration, and preparation method thereof

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Effect test

Embodiment 1

[0030] A kind of preparation method of polypropylene composite material for automobile interior decoration of the present invention, comprises the following steps:

[0031] 1) Weigh raw materials according to the following parts by weight: 33.5 parts of homopolymerized PP, 33.5 parts of copolymerized PP, 15 parts of 5000 mesh talc powder, 15 parts of 3000 mesh talc powder, 0.5 part of antioxidant, 1 part of deodorant, and 0.3 part of dispersant , 0.5 part of calcium stearate, 0.2 part of light stabilizer, 0.5 part of nucleating agent;

[0032] 2) Take homopolymerized PP and copolymerized PP, add them into a high-speed mixer, mix them evenly, and then add talcum powder, antioxidant, deodorant, dispersant, calcium stearate, light stabilizer and nucleating agent for co- After mixing evenly, add it to the twin-screw extruder; the temperature of each zone of the extruder is: 170-185°C for the first stage to the fourth stage, 190-215°C for the fifth stage to the seventh stage, 180-1...

Embodiment 2

[0034] A kind of preparation method of polypropylene composite material for automobile interior decoration of the present invention, comprises the following steps:

[0035] 1) Weigh raw materials according to the following parts by weight: 33.5 parts of homopolymerized PP, 33.5 parts of copolymerized PP, 20 parts of 5000 mesh talc powder, 10 parts of 3000 mesh talc powder, 0.5 part of antioxidant, 1 part of deodorant, and 0.3 part of dispersant , 0.5 part of calcium stearate, 0.2 part of light stabilizer, 0.3 part of nucleating agent, wherein, antioxidant is antioxidant 1010, antioxidant 3114, antioxidant 168 and antioxidant 627A and is 1 according to mass ratio: Composite antioxidant composed of 2:1:1, deodorant is zeolite, dispersant is composite dispersant composed of EBS, zinc stearate and ethylene bisstearic acid amide according to the mass ratio of 1:1:2, light The stabilizer is 944, and the nucleating agent is a compound composed of 2,2'-methylene-bis(4,6-di-tert-butylp...

Embodiment 3

[0038] A kind of preparation method of polypropylene composite material for automobile interior decoration of the present invention, comprises the following steps:

[0039] 1) Weigh the raw materials according to the following parts by weight: 33.5 parts of homopolymerized PP, 33.5 parts of copolymerized PP, 30 parts of 5000 mesh talcum powder, 0.5 part of antioxidant, 1 part of deodorant, 0.3 part of dispersant, 0.5 part of calcium stearate , 0.2 parts of light stabilizer, 0.3 parts of nucleating agent, wherein the antioxidant is composed of antioxidant 1010, antioxidant 3114, antioxidant 168 and antioxidant 627A according to the mass ratio of 2:1:1:1 Composite antioxidant, deodorant is molecular sieve, dispersant is composite dispersant composed of EBS, zinc stearate and ethylene bisstearic acid amide according to the mass ratio of 1:1:1, light stabilizer is 3808PP5, nucleation The agent is a composite nucleating agent composed of 2,2'-methylene-bis(4,6-di-tert-butylphenol) ...

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Abstract

The invention discloses a polypropylene composite material for automobile interior decoration, and a preparation method thereof. The polypropylene composite material comprises 33.5-47 parts of homopolymerized PP, 20-33.5 parts of copolymerized PP, 15-30 parts of talcum powder, 0.2-0.5 part of an antioxidant, 1-1.5 parts of a deodorant, 0.1-0.3 part of a dispersant, 0.5-1 part of calcium stearate,0.1-0.2 part of a light stabilizer and 0.3-0.5 part of a nucleating agent. The invention also provides the preparation method of the composite material. The composite material is obtained by mixing, co-extruding, cooling, pelletizing and drying. The compounding of the homopolymerized PP and the copolymerized PP under the synergistic effects of the talcum powder, a nucleating agent and the dispersant improves the modulus of the composite material, improves the scratch resistance, avoids the use of a scratch-resistant agent, reduces the production cost, reduces the odor and the VOC content of the composite material, and makes the composite material meet the requirements of the automotive interior decoration for the use environment.

Description

technical field [0001] The invention belongs to the technical field of polypropylene modified materials, in particular to a polypropylene composite material for automobile interior decoration and a preparation method thereof. Background technique [0002] With the development and progress of human society, people's awareness of living standards is gradually improving, and the word "environmental protection" gradually catches the eyes of the public; and on the rapidly developing urban roads, the environmental protection of automobiles is also particularly important. The choice of materials has also worked towards low odor, low VOC and scratch resistance. Polypropylene (PP) plastic has excellent comprehensive physical properties, good impact resistance, resistance to various organic solvents and acid and alkali corrosion, and is cheap, so it has become the main material for making automotive interiors. [0003] However, the existing PP plastic smell has a strong pungent smell...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L93/04C08K13/04C08K3/34C08K5/098C08K5/523C08K5/20C08K7/26B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704B29C2948/92904C08K2201/014C08L23/12C08L23/14C08L2205/03C08L93/04C08K13/04C08K3/34C08K5/098C08K5/523C08K5/20C08K7/26
Inventor 万延浩高继升李艳李庆文郑敏郝彩霞毕彦坤
Owner QINGDAO GON TECHNOLOGY CO LTD
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