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Stress blanching and stress crack resistant filling modified polypropylene, preparation method and application

A technology of stress cracking and filling modifier, applied in the field of preparation of modified polypropylene, can solve problems such as difficult balance performance, and achieve the effect of improving impact resistance.

Active Publication Date: 2010-09-08
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The technical problem to be solved in the present invention is to disclose a stress-whitening and stress-cracking-resistant filled modified polypropylene and its production method and application, so as to overcome the difficult problem of balancing various properties in the prior art

Method used

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  • Stress blanching and stress crack resistant filling modified polypropylene, preparation method and application
  • Stress blanching and stress crack resistant filling modified polypropylene, preparation method and application
  • Stress blanching and stress crack resistant filling modified polypropylene, preparation method and application

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Abstract

The invention discloses a stress-tolerant whitening and stress cracking filling modifying polypropylene and making method and application, which is characterized by the following: making each index of polypropylene reach or exceed the preset request; solving the defect of stress whitening and stress cracking after reaching rigid and fexible balance; fitting for automobile industry and assembling property; making the bending modulus of material to 1300Mpa at 23 deg. c and collision strength of cantilever beam notch over 25KJ / m2; reaching and exceeding the integrated property of automobile industry.

Description

technical field The invention relates to a preparation method of modified polypropylene, in particular to a preparation method of filled modified polypropylene used for interior components such as automobile door panels. technical background Polypropylene is a general-purpose plastic with a wide range of uses. It is polymerized from propylene monomer. According to the polymerization method and the arrangement of molecular segments, polypropylene resin is mainly divided into two categories: copolymerization and homopolymerization. Ordinary PP resin is difficult to meet the application requirements of various industries. The application range of modified polypropylene materials is already very wide. However, in industries such as automobiles and home appliances, the technical level of modified PP is increasingly required. At the same time, the processing characteristics of materials Some higher requirements are also put forward. For example, modified polypropylene is used a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L25/10C08J3/12C08K3/34C08L23/16C08K3/26C08L23/14C08K5/524
Inventor 周英辉宁凯军罗忠富
Owner SHANGHAI KINGFA SCI & TECH
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