High-glossiness polypropylene composition as well as preparation method and application thereof

A polypropylene composition, high gloss technology, applied in the field of polymer materials, can solve problems such as warpage deformation, reduce shrinkage rate, etc., achieve the effect of improving thermal oxygen aging performance and solving technical defects

Active Publication Date: 2021-05-14
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Chinese patent CN103059411A reduces shrinkage by adding polyethylene, elastomer, whiskers and glass fibers, but the defect of warping occurs due to the orientation of whiskers and glass fibers
[0006] There is no report on high gloss and low shrinkage in the prior art

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0027] The raw material sources used in the present invention are as follows:

[0028] High isotacticity homopolypropylene: the isotacticity is greater than 98%, the weight average molecular weight is 280,000, and the brand is Daehan Petrochemical HJ4045.

[0029] Isotactic polypropylene: isotacticity 96%, weight average molecular weight 300,000, brand Maoming Petrochemical N-Z30S.

[0030] Low-isotacticity polypropylene: isotacticity 92%, weight-average molecular weight 280,000, brand Lotte J-57...

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Abstract

The invention discloses a high-glossiness polypropylene composition which comprises the following components in parts by weight: 100 parts of high-isotacticity homo-polypropylene; 2-12 parts of ultrahigh melt index polypropylene; and 10-50 parts of an inorganic filler. By adding a small amount of ultrahigh melt index polypropylene into the polypropylene composition mainly comprising high-isotacticity homo-polypropylene, the technical defect that low shrinkage and high glossiness of the high-isotacticity homo-polypropylene cannot be achieved at the same time is overcome, meanwhile, the heat resistance and aging resistance of the material can be improved, and the polypropylene composition can be widely applied to the fields of household appliances and electronic appliances.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-gloss polypropylene composition and its preparation method and application. Background technique [0002] Due to its excellent surface gloss and good mechanical properties, polypropylene is currently widely used in the field of home appliances. At the same time, polypropylene is low in cost and can be used as an ideal material to replace high-gloss products such as ABS, HIPS, and PC / ABS. It has become more and more popular. more people's attention. [0003] In the application of electronic and electrical housings, materials are generally required to have excellent gloss, good rigidity and low shrinkage. The literature on high gloss and low shrinkage of polypropylene is extensive: [0004] High-gloss technology is mainly achieved by adding nucleating agents to increase the crystallinity of polypropylene or refining spherulites or selecting inorganic powders with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K3/34C08K3/30
CPCC08L23/12C08K2003/3045C08L2207/10C08L2203/20C08L2205/025C08L2201/08C08K3/34C08K3/30
Inventor 王爱东黄险波叶南飚杨霄云陆湛泉赵治国李栋栋程文建
Owner KINGFA SCI & TECH CO LTD
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