PP composite material with low VOC and high performance specially used for automotive upholsteries and preparation method thereof

A technology for automotive interior parts and composite materials, which is applied in the field of automotive interior materials and its preparation, can solve the problems of low VOC emissions, etc., and achieve the effect of less components, low cost and good performance

Active Publication Date: 2010-04-07
GUANGZHOU SUPER DRAGON ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is little research on low-VOC automotive materials in China, and there are only a few reports on low-odor automotive materials, such as the Chinese patent "High-performance and low-odor automotive dashboard special polypropylene and its preparation method", patent application number: 200510024840.2, report The low odor of the material is reduced by adding adsorbents such as porous molecular sieves, but the products produced in this way have problems with adsorption balance; Chinese patent "Special Materials for Low E

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Prepare according to the following formula:

[0035] (1) Hydrogen modified polypropylene resin 60%

[0036] (2) Reinforcing filler: superfine talcum powder, particle size 1-6μm 25%

[0037] (3) Toughening agent: ethylene-propylene-octene copolymer 14.5%

[0038] (4) Antioxidant: 1010 0.2%

[0039] (5) Light stabilizer: TINUV770:326=1:1 0.3%

[0040] First put the reinforcing filler, toughener, light stabilizer, and antioxidant into the mixer in proportion, stir and mix for 5 minutes at a speed of 400 rpm, and then add polypropylene resin at a speed of 500 rpm Stir to mix for 5 minutes. Then, the above mixture is melt-extruded and granulated at 200° C. in a twin-screw extruder to obtain a low-VOC high-performance PP composite material for automotive interior parts. In this embodiment, the screw speed of the twin-screw extruder is 300 rpm. The tank temperature is 20-40°C. The rotational speed of the pelletizer was 800 rpm.

[0041] The performance of the obtained ...

Embodiment 2

[0050] Prepare according to the following formula:

[0051] (1) Hydrogen modified polypropylene resin 72%

[0052] (2) Reinforcing filler: superfine talcum powder, particle size 1-6μm 14.5%

[0053] (3) Toughening agent: ethylene-propylene-octene copolymer 13%

[0054] (4) Antioxidant: 1010 0.2%

[0055] (5) Light stabilizer: TINUV770:326=1:1 0.3%

[0056] First put the reinforcing filler, toughener, light stabilizer, and antioxidant into the mixer in proportion, stir and mix for 5 minutes at a speed of 400 rpm, and then add polypropylene resin at a speed of 500 rpm Stir to mix for 5 minutes. Then, the above mixture is melt-extruded and granulated at 200° C. in a twin-screw extruder to obtain a low-VOC high-performance PP composite material for automotive interior parts. In this embodiment, the screw speed of the twin-screw extruder is 300 rpm. The tank temperature is 20-40°C. The rotational speed of the pelletizer was 800 rpm.

[0057] The performance of the obtained ...

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PUM

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Abstract

The invention belongs to a polypropylene (PP) composite material with a low volatile organic compound (VOC) and high performance specially used for automotive upholsteries and a preparation method thereof, relating to the automobile field. The special material is prepared from the following components by mass percent: 60-80% of polypropylene (PP), 10-25% of reinforcing filler, 10-15% of flexibilizer, 0.2-0.5% of antioxidant and 0.1-0.5% of light stabilizer. The total volatile organic compound (TVOC) of the polypropylene composite material obtained in the invention is less than 40 mu gC/g; the notch impact strength of a cantilever beam under 23 DEG C is 15-40kJ/m2; the flexural modulus is 1500-2300MPa; the melt index is more than 10g/10min at a temperature of 230 DEG C and at a weight of 2.16kg; and the composite material has favorable light and heat stability, low VOC, few components, low cost, good performance, easy preparation and can be widely used in the production of automotive upholsteries.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to an automobile interior decoration material and a preparation method thereof. Background technique [0002] 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 interior materials. Automotive interior parts are generally modified PP composite materials, and the main reasons for the generation of VOC are: (1) PP resin. Conventional high-flow PP resin is generally produced by organic peroxide degradation method, and the residual peroxide in the resin will react to generate organic volatiles such as alcohol and aldehyde; (2) processing aids and their compatibility with the matrix PP resin. Processing aids with poor heat resistance and poor compatibility with the matrix resin will produce VOC through precipitation and vola...

Claims

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Application Information

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IPC IPC(8): C08L23/12B60R13/02B29C47/92B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/40B29C2948/9259B29C2948/92885B29C2948/92895
Inventor 郝源增余鹏张玉澎郝建鑫
Owner GUANGZHOU SUPER DRAGON ENG PLASTICS
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