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Polypropylene compound free of flame treatment and preparation method thereof

A technology of flame treatment and polypropylene, which is applied in the field of flame-free treatment of polypropylene composites and its preparation, can solve the problems of high cost and long time, and achieve the effect of excellent comprehensive performance

Inactive Publication Date: 2016-03-02
SHANGHAI KINGFA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flame treatment process takes a long time and costs high, so how to avoid flame treatment of parts is an urgent technical problem to be solved

Method used

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  • Polypropylene compound free of flame treatment and preparation method thereof
  • Polypropylene compound free of flame treatment and preparation method thereof
  • Polypropylene compound free of flame treatment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 70kg polypropylene, 0.25kg phenolic heat stabilizer, 0.25kg phosphite heat stabilizer, 0.3kg processing aid, 10kg ethylene-vinyl acetate copolymer (vinyl acetate weight percent content is 40%), 12kg of ethylene-octene copolymer and 8kg of high-density polyethylene were dry-mixed in a high-speed mixer for 3-5 minutes at a mixing speed of 600 rpm at a temperature of 23°C, and then mixed raw materials at an aspect ratio of 40 :1 Melt and mix in the twin-screw extruder and then granulate to obtain the final product. The temperature of each section of the twin-screw extruder is set at 190-240°C.

[0040] The models and manufacturers of the above raw materials are shown in the table below:

[0041]

[0042]

Embodiment 2

[0044] With 65kg polypropylene, 0.25kg phenolic heat stabilizer, 0.25kg phosphite heat stabilizer, 0.3kg processing aid, 12kg ethylene-vinyl acetate copolymer (vinyl acetate weight percent content is 34%), 15kg Ethylene octene copolymer and 8kg high-density polyethylene were dry mixed in a high-speed mixer for 3-5 minutes, the mixing speed was 600 rpm, and the mixing temperature was 23°C, and then the mixed raw materials were mixed at an aspect ratio of 40: 1. Melt and mix in the twin-screw extruder and then granulate to obtain the final product. The temperature of each section of the twin-screw extruder is set at 190-240°C.

[0045] The models and manufacturers of the above raw materials are shown in the table below:

[0046]

Embodiment 3

[0048] 65kg polypropylene, 0.25kg phenolic heat stabilizer, 0.25kg phosphite heat stabilizer, 0.3kg processing aid, 12kg ethylene-vinyl acetate copolymer (vinyl acetate weight percent content is 45%), 15kg Ethylene octene copolymer and 8kg high-density polyethylene were dry mixed in a high-speed mixer for 3-5 minutes, the mixing speed was 600 rpm, and the mixing temperature was 23°C, and then the mixed raw materials were mixed at an aspect ratio of 40: 1. Melt and mix in the twin-screw extruder and then granulate to obtain the final product. The temperature of each section of the twin-screw extruder is set at 190-240°C.

[0049] The models and manufacturers of the above raw materials are shown in the table below:

[0050]

[0051]

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Abstract

The invention discloses a polypropylene compound free of flame treatment. The polypropylene compound comprises the following components in parts by weight: 65-90 parts of polypropylene, 0-20 parts of ethylene-octene copolymer, 5-15 parts of high density polyethylene, 1-20 parts of ethylene-vinyl acetate copolymer, 0.2-2 parts of a heat stabilizer and 0.2-2 parts of a processing agent; the invention further discloses a preparation method of the polypropylene compound free of flame treatment. Compared with the prior art, the polypropylene compound provided by the invention has the advantages that the compound is free of flame treatment when being used for manufacturing automobile parts, the time is saved and the economic cost is reduced, and manufacturing processes are reduced.

Description

technical field [0001] The invention relates to the field of polymer materials and their molding processing, in particular to a flame-free treatment polypropylene compound and a preparation method thereof. Background technique [0002] With the development of the automobile industry, the competition among major automobile manufacturers is becoming more and more fierce, and the pressure on the cost of automobile materials, environmental protection and energy saving and emission reduction is increasing. Polypropylene is characterized by its extremely low density, non-toxic environmental protection, Low price and excellent comprehensive performance make it become the mainstream material for lightweight, environmentally friendly and low-cost automotive interior and exterior trim, gradually replacing PVC, ABS, PC and other plastics, and becoming the most widely used plastic material for automotive trim. [0003] Due to the aesthetic requirements of appearance, the surface of poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08L31/04C08L23/06
CPCC08L23/12C08L2205/025C08L2205/035C08L2205/06C08L2207/062C08L23/0853C08L23/0815C08L23/06
Inventor 卢先博程文超陈延安孙刚周英辉夏建盟罗忠富李国明
Owner SHANGHAI KINGFA SCI & TECH
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