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Polypropylene composition as well as preparation method and application thereof

A polypropylene composition and polypropylene resin technology, applied in the field of polypropylene composition and its preparation, can solve problems such as affecting the appearance of materials, and achieve the effect of improving thermal-oxidative aging performance

Pending Publication Date: 2022-04-15
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The addition of antioxidants is one of the most direct and effective ways to improve the thermal and oxidative aging resistance of materials. However, in addition to cost pressures, a large amount of antioxidants will also bring other problems, such as easy Defects such as enrichment and precipitation on the surface, affecting the appearance of the material

Method used

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  • Polypropylene composition as well as preparation method and application thereof
  • Polypropylene composition as well as preparation method and application thereof
  • Polypropylene composition as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～15

[0067] This example provides a series of polypropylene compositions, and the parts by weight and performance test results of each component in the formulation are shown in Table 1.

[0068] The formula (part) and performance test result of table 1 embodiment 1~15

[0069]

[0070]

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Abstract

The invention relates to a polypropylene composition as well as a preparation method and application thereof. The polypropylene composition comprises polypropylene, an elastomer, talcum powder, an aging improving auxiliary agent and an antioxidant, the talcum powder is used as an inorganic filler of the polypropylene composition, and the specific aging improving auxiliary agent and a small amount of the antioxidant are added, so that the thermo-oxidative aging performance can be greatly improved; and the problem of appearance defects caused by enrichment and precipitation of the antioxidant on the surface layer does not exist.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a polypropylene composition and its preparation method and application. Background technique [0002] Compared with other general-purpose plastics, polypropylene has the advantages of good mechanical properties, low density, good rigidity, high strength and good electrical insulation performance. However, because PP contains unstable tertiary carbon groups, it is easily attacked by heat and oxygen. Performance deterioration occurs, such as yellowing, surface cracking and pulverization, and a significant decline in mechanical properties. Therefore, many products, such as automotive interior parts, have long-term heat-oxidative aging resistance requirements for polypropylene. [0003] At present, the heat and oxygen aging resistance of polypropylene is generally improved by adding a large amount of high-efficiency antioxidants and heat and oxygen aging resist...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08L23/14C08K3/34C08K5/20C08K5/134C08K5/526
CPCC08L23/12C08L23/14C08L2201/08C08L23/0815C08K3/34C08K5/20C08K5/1345C08K5/526
Inventor 苏娟霞陈平绪叶南飚杨波罗忠富卢朝亮吴亦建吴国峰陈延安
Owner KINGFA SCI & TECH CO LTD
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