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High-bright-black, scratch-resistant and thin-walled polypropylene composite material and preparation method thereof

A composite material and polypropylene technology, applied in the thin-walled polypropylene composite material and its preparation, in the field of high gloss black and scratch resistance, can solve the problems of easy to appear scratches, intolerance to scratches, low hardness, etc. It has the effect of long-term effect, low production cost and high melting index

Inactive Publication Date: 2020-05-01
ZHEJIANG PRET NEW MATERIALS +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Polypropylene material is prone to scratches during use due to its rigidity, low hardness, and resistance to scratches

Method used

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  • High-bright-black, scratch-resistant and thin-walled polypropylene composite material and preparation method thereof
  • High-bright-black, scratch-resistant and thin-walled polypropylene composite material and preparation method thereof

Examples

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with specific examples. Unless otherwise specified, each component in the examples is by weight.

[0031] The contents of each component contained in the examples of the present invention and the comparative examples are shown in Table 1.

[0032] Table 1

[0033] Each main component content (mass percentage composition) in embodiment and comparative example

[0034]

[0035] The polypropylene described in the examples and comparative examples in the above Table 1 is a copolymerized polypropylene, which is compounded with PP511 and BX3920 at a ratio of 1:1. The brand PP511 is produced by Zhongsha Tianjin Company, and the melt flow rate is 30g respectively. / 10min, the brand BX3920 is produced by SK Company in South Korea, and the melt flow rate is 100g / 10min. Described talcum powder is the talcum powder of about 5000 meshes, commercially available. Described elastomer is the thermoplastic POE ...

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Abstract

The invention discloses a high-bright-black, scratch-resistant and thin-walled polypropylene composite material and a preparation method thereof. The high-bright-black, scratch-resistant and thin-walled polypropylene composite material comprises the following raw materials in parts by weight: 63.4-79.8 parts of polypropylene, 10-20 parts of talcum powder, 6-10 parts of an elastomer, 1-3 parts of high-bright-black masterbatches, 0.2-0.6 part of a scratch-resistant auxiliary agent, 0-1 part of an antioxidant and 0-3 parts of auxiliary agents. According to the invention, ultrafine-particle-size carbon black in the high-bright-black masterbatches has an extremely strong coloring effect, and a hyperdispersant has a strong dispersion effect, so the polypropylene composite material achieves stable, uniform and high-bright-black aesthetic effects; meanwhile, through introduction of an organic silicon polymer with a special structure, the polypropylene composite material has good scratch resistance; under the condition of adding a small amount of the organic silicon polymer, compared with a traditional silicone scratch-resistant auxiliary agent, the organic silicon polymer has long-acting property and durability, can significantly improve the scratch resistance of the surface of the polypropylene material and reduce the surface friction coefficient of the polypropylene material, and canplay a synergistic role with polyethylene wax in the high-bright-black masterbatches to improve the scratch resistance of the polypropylene composite material.

Description

technical field [0001] The invention belongs to the technical field of polymer modification and processing, and relates to a high-gloss black, scratch-resistant, thin-walled polypropylene composite material and a preparation method thereof. Background technique [0002] With the rapid development of the automobile industry, the manufacture of automobiles consumes a large amount of natural resources, and the environmental and energy problems brought about by the automobile industry are becoming more and more serious. The development and application of automobile lightweight technology has become the mainstream trend of the current automobile industry development. As a general-purpose plastic, polypropylene is widely used in automobiles due to its low density and high price. As one of the lightweight technologies for automobiles, thin-walled polypropylene composite materials have been used in automobile pillars, door panels, instrument panels, grilles, etc. Grilles, bumpers an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/08C08L23/06C08L83/04C08K13/02C08K3/04C08K3/34C08K5/103C08J3/22
CPCC08J3/226C08J2323/14C08J2423/08C08J2423/06C08J2483/04C08K13/02C08K3/04C08K3/34C08K5/103C08K2201/003
Inventor 巩祥壮周楠婷吴俊赵丽萍张锴蔡青周文
Owner ZHEJIANG PRET NEW MATERIALS
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