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Shock-resistant polypropylene composite material with high fluidity and high rigidity

A technology of impact-resistant polypropylene and composite materials, which is applied in the field of polypropylene composite materials, can solve the problems of polypropylene resin fluidity and product mechanical properties that cannot meet actual needs, and achieve reduced material odor, good compatibility, and difficulty in agglomeration Effect

Active Publication Date: 2016-10-12
SUZHOU RUNJIA ENGINEER PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in automotive parts, refrigerators, air conditioners, etc., polypropylene resin products with light weight and excellent rigidity are provided. However, when large-scale finished products are molded, the fluidity and mechanical properties of polypropylene resin cannot meet actual needs.

Method used

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  • Shock-resistant polypropylene composite material with high fluidity and high rigidity

Examples

Experimental program
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Effect test

Embodiment 1

[0019] (1) Prepare porous silica microspheres first: place porous polystyrene polymer microspheres in ethanol and ultrasonically homogenize, then add ammonia water, methyl orthosilicate or ethyl orthosilicate ethanol solution in turn, and stir to react After 22 hours, wash, dry, and finally place in a muffle furnace for calcination to obtain porous silica microspheres;

[0020] (2) Prepare the silica filler modified by silane coupling agent: mix the silane coupling agent and silica filler (porous silica microspheres and nano-scale silica powder) evenly, and stir at 100°C, After reacting for 6 hours, centrifuge, filter, wash, and dry to obtain a silica filler modified with a silane coupling agent;

[0021] (3) Take a total of 15 parts of the silica filler modified by the silane coupling agent prepared above, 100 parts of polypropylene, 5 parts of organic nucleating agent, and 10 parts of POE elastomer, and dry the above raw materials in a high-speed mixer Mix for 10 minutes, t...

Embodiment 2

[0024] (1) Prepare porous silica microspheres first: place porous polystyrene polymer microspheres in ethanol and ultrasonically homogenize, then add ammonia water, methyl orthosilicate or ethyl orthosilicate ethanol solution in turn, and stir to react After 22 hours, wash, dry, and finally place in a muffle furnace for calcination to obtain porous silica microspheres;

[0025] (2) Prepare the silica filler modified by silane coupling agent: mix the silane coupling agent and silica filler (porous silica microspheres and nano-scale silica powder) evenly, and stir at 100°C, After reacting for 6 hours, centrifuge, filter, wash, and dry to obtain a silica filler modified with a silane coupling agent;

[0026] (3) Take 20 parts of the silica filler modified by the silane coupling agent prepared above, mix with 100 parts of polypropylene, 2 parts of organic nucleating agent, and 15 parts of POE elastomer, and melt blend to obtain a polypropylene composite material , preparation pro...

Embodiment 3

[0029] (1) Prepare porous silica microspheres first: place porous polystyrene polymer microspheres in ethanol and ultrasonically homogenize, then add ammonia water, methyl orthosilicate or ethyl orthosilicate ethanol solution in turn, and stir to react After 22 hours, wash, dry, and finally place in a muffle furnace for calcination to obtain porous silica microspheres;

[0030] (2) Prepare the silica filler modified by silane coupling agent: mix the silane coupling agent and silica filler (porous silica microspheres and nano-scale silica powder) evenly, and stir at 100°C, After reacting for 6 hours, centrifuge, filter, wash, and dry to obtain a silica filler modified with a silane coupling agent;

[0031] (3) Take 10 parts of the silica filler modified by the silane coupling agent prepared above, mix with 100 parts of polypropylene, 1 part of organic nucleating agent, and 10 parts of POE elastomer, and melt blend to obtain a polypropylene composite material , preparation proc...

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Abstract

The invention discloses a shock resistant polypropylene composite material with high fluidity and high rigidity, prepared from the following raw materials in parts by weight: 100 parts of polypropylene, 1-5 parts of organic nucleator, 10-20 parts of silane coupling agent modified silica filler and 10-15 parts of POE elastomer, wherein the polypropylene is homopolymerized polypropylene, the isotacticity of the polypropylene is greater than 97%; according to ASTMD1238-99 and under the condition of 230 DEG C / 2.16kg, the measured melt flow rate of the polypropylene is 3-15g / 10min, and the molecular weight distribution Mw / Mn of the acrylic resin measured through GPC is 6.0-9.0. The composite material has excellent mechanical properties and high fluidity and can satisfy the production requirements of large thin-walled injection molding products.

Description

technical field [0001] The invention relates to a polypropylene composite material, in particular to a high fluidity, high rigidity and impact-resistant polypropylene composite material. Background technique [0002] Polypropylene resin has good physical properties and formability, and it also has the advantages of good chemical corrosion resistance, no peculiar smell, and non-toxicity. As an environmentally friendly material, its application range is rapidly expanding. Especially in automotive parts, refrigerators, air conditioners, etc., polypropylene resin products with light weight and excellent rigidity are provided. However, when large-scale finished products are molded, the fluidity and mechanical properties of polypropylene resin cannot meet actual needs. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a high-fluidity, high-rigidity, impact-resistant polypropylene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08K9/06C08K3/36C08K7/26
CPCC08L23/12C08K2201/003C08K2201/011C08L2205/24C08L23/0815C08K9/06C08K3/36C08K7/26
Inventor 汪理文李庆贵孙兆才董骏周明翁永华丁贤麟
Owner SUZHOU RUNJIA ENGINEER PLASTIC
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