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Polypropylene composition special for automobile hard plastic blasting instrument board and preparation method thereof

A polypropylene composition and composition technology, applied in the field of polypropylene materials, can solve the problems of poor rigidity and toughness balance of polypropylene materials, etc.

Active Publication Date: 2021-04-20
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a polypropylene composition for automobile hard plastic blasting instrument panel and its preparation method, to overcome the polypropylene composition in the prior art Defects of poor balance of rigidity and toughness of materials

Method used

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  • Polypropylene composition special for automobile hard plastic blasting instrument board and preparation method thereof
  • Polypropylene composition special for automobile hard plastic blasting instrument board and preparation method thereof

Examples

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Embodiment 1

[0033] This embodiment provides a polypropylene composition for automotive hard plastic blasting instrument panels and a preparation method thereof. The composition includes the following raw materials in parts by weight: 54 parts of polypropylene PP M2600R, 20 parts of elastomer POE 8842, and ionic polymer Surlyn 5 parts of 8920, 20 parts of talc powder TYT-899, 0.25 parts of hindered phenolic primary antioxidant Irganox 1010, 0.25 parts of phosphite secondary antioxidant Irganox 168, 0.3 parts of hindered amine light stabilizer 770, stearic acid Zinc ZN-ST 0.2 parts.

[0034] The preparation method of above-mentioned composition is:

[0035] (1) After mixing 20 parts of elastomer POE 8842, 54 parts of polypropylene PP M2600R and 0.1 part of azobisisobutyronitrile AIBN, under the action of an initiator, chemically react in the first-stage twin-screw extruder, get the material;

[0036] (2) Physically blending other raw materials according to parts by weight with the materia...

Embodiment 2

[0039] According to Example 1, this example provides a polypropylene composition for automotive hard plastic blasting instrument panels and a preparation method thereof, except that the initiator is benzoyl peroxide BPO, the rest are the same as Example 1.

Embodiment 3

[0041] According to Example 1, this example provides a polypropylene composition for automotive hard plastic blasting instrument panels and a preparation method thereof, except that the initiator is dicumyl peroxide DCP, and the others are the same as Example 1.

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PUM

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Abstract

The invention relates to a polypropylene composition for an automobile hard plastic blasting instrument board and a preparation method of the polypropylene composition. The composition is prepared from the following raw materials in parts by weight: 45 to 72.5 parts of polypropylene, 10 to 25 parts of an elastomer, 3 to 7 parts of an ionic polymer, 10 to 25 parts of talcum powder, 0.2 to 1.0 part of a heat stabilizer, 0.2 to 0.5 part of a light stabilizer and 0.1 to 0.5 part of a processing aid. The composition has good rigidity and toughness, and can meet the use requirements of automobile hard plastic blasting instrument board materials.

Description

technical field [0001] The invention belongs to the field of polypropylene materials, in particular to a polypropylene composition for automobile hard plastic blasting instrument panels and a preparation method thereof. Background technique [0002] Due to its cost-effective advantages, polypropylene has gradually replaced ABS, PC / ABS and other engineering plastics and has been widely used in automotive interior parts. For the sake of aesthetics, all the hard plastic dashboards of automobiles now require seamlessness, but the seamlessness puts forward extremely high requirements for the toughness of the hard plastic dashboard materials. In an emergency, when the airbag at the co-pilot explodes, material fragments caused by insufficient toughness are not allowed, so as not to threaten the safety of the co-pilot members. Ethylene / octene copolymer elastomer is usually used for toughening polypropylene materials. The disadvantage of this elastomer is that it has poor compatibil...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L23/08C08K3/34C08K13/02
Inventor 王海霞孙刚
Owner SHANGHAI KINGFA SCI & TECH
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