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Polypropylene composite material with high toughness under ultralow temperature and preparation method and application thereof

A composite material, polypropylene technology, applied in the field of preparation, polypropylene composite materials, can solve problems such as difficulty in obtaining rigidity and toughness, low temperature brittleness, large shrinkage rate, poor impact resistance, etc., achieve good processing fluidity and improve compatibility Sex, easy injection molding effect

Inactive Publication Date: 2016-07-13
安徽纽麦特新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to obtain excellent balance between rigidity and toughness of polypropylene material, and the disadvantages of low-temperature brittleness and large shrinkage rate lead to poor impact resistance and easy deformation of its products, which limits its further application in automobiles.

Method used

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  • Polypropylene composite material with high toughness under ultralow temperature and preparation method and application thereof

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Effect test

Embodiment 1

[0025] A polypropylene composite material with high toughness at ultra-low temperature, comprising the following raw materials in weight percentage: 37.3wt% polypropylene (PPM1600), 29.9wt% pre-made modified polypropylene, 12wt% toughening agent (POE, 5030S), 20wt% Pretreatment ultrafine talcum powder, 0.3wt% antioxidant (antioxidant 1010: 0.1%, antioxidant 168: 0.2%), 0.5wt% lubricant (EB-FF).

[0026] A method for preparing a polypropylene composite material with high toughness at ultra-low temperature, comprising the following steps:

[0027] (1) In the pretreatment ultrafine filler system, 100 parts by mass of 1500-mesh ultrafine talc powder and 1.2 parts by mass of aluminum-titanium composite coupling agent were mixed and stirred under a high-speed mixer for 8 minutes to obtain pretreated ultrafine talc powder.

[0028] (2) In the pre-made modified polypropylene system, add 7 parts by mass of POE model: 5030S, 6 parts by mass of molecular weight regulator (peroxide master...

Embodiment 2

[0033] A polypropylene composite material with high toughness at ultra-low temperature, including the following raw materials in weight percentage: 33.5wt% polypropylene (AP03B), 33.5wt% pre-made modified polypropylene, 12wt% toughening agent (POE model is 670), 20wt% % pretreatment ultrafine filler, 0.3wt% antioxidant (1010: 0.15%, 168: 0.15%), 0.7wt% lubricant.

[0034] A method for preparing a polypropylene composite material with high toughness at ultra-low temperature, comprising the following steps:

[0035] (1) In the pretreatment superfine filler system, 50 parts by mass of 3000 mesh ultrafine talc powder, 50 parts by mass of muscovite powder of 2000 mesh, and 1.5 parts by mass of rare earth coupling agent were mixed and stirred under a high-speed mixer for 8 minutes to obtain a pretreated ultrafine filler system. fine filler;

[0036] (2) In the pre-made modified polypropylene system, add 5 parts by mass of POE (preferably POE model is 5030S), 6 parts by mass of pero...

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Abstract

The invention provides a polypropylene composite material with high toughness under the ultralow temperature and a preparation method and application thereof.The polypropylene composite material comprises, by weight, 25-53% of polypropylene, 12-35% of pre-self-made modified polypropylene, 10-20% of flexibilizer, 10-30% of preprocessed super-fine filler, 0.3-0.5% of antioxygen and 0.5-1.5% of lubricant.Compared with the prior art, the super-fine filler (the average particle size is 5-15 microns) is processed with a composite coupling agent so as to improve rigidity of the composite polypropylene material, meanwhile the fracture mode of the material can tend to ductile fracture, and great significance is achieved in preventing debris from being splashed out in the explosion process; in addition, the polypropylene of the pre-self-made performance and the flexibilizer are adopted to jointly modify the polypropylene, and compatibility among materials is improved, so that low-temperature toughness is improved, and good processing fluidity is provided.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a polypropylene composite material with high toughness at ultra-low temperature, a preparation method and an application thereof. Background technique [0002] Polypropylene, abbreviated as: PP is a thermoplastic resin obtained by polymerizing propylene. PP is the most widely used variety in automotive plastics, and has the advantages of low density, good performance, and easy processing. However, it is difficult to obtain excellent balance between rigidity and toughness of polypropylene material, and the disadvantages of low-temperature brittleness and large shrinkage rate lead to poor impact resistance and easy deformation of its products, which limits its further application in automobiles. [0003] Therefore, researchers have modified PP. Modified polypropylene material is one of the most applicable non-metallic materials for automobiles so far, and is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L23/08C08K13/06C08K9/04C08K3/34C08K5/134C08K5/526
CPCC08L23/12C08K2201/011C08L2205/025C08L2205/035
Inventor 陈炜陶小红
Owner 安徽纽麦特新材料科技股份有限公司
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