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Nanometer-material-compounded long-glass-fiber-reinforced polypropylene material and preparing method thereof

A technology of polypropylene materials and nanomaterials, which is applied in the field of nanocomposite long glass fiber reinforced polypropylene composite materials and its preparation, can solve the problem of increasing the proportion of long glass fiber reinforced polypropylene, unfavorable long glass fiber reinforced polypropylene processing, and affecting the production of polypropylene. Problems such as propylene melt flow characteristics, to achieve the effect of improving tensile strength, good market prospects and economic benefits, and low warpage

Active Publication Date: 2016-06-01
BEIJING INST OF AEROSPACE TESTING TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above published patents have a certain anti-warping effect on long glass fiber reinforced polypropylene, it is necessary to add more inorganic fillers in the system, resulting in a significant increase in the proportion of long glass fiber reinforced polypropylene; adding other resin materials will affect the polypropylene. The flow characteristics of propylene melt are not conducive to the processing of long glass fiber reinforced polypropylene, thus affecting the overall performance of the material

Method used

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  • Nanometer-material-compounded long-glass-fiber-reinforced polypropylene material and preparing method thereof
  • Nanometer-material-compounded long-glass-fiber-reinforced polypropylene material and preparing method thereof

Examples

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Effect test

Embodiment 1

[0032] In the present embodiment, the nanomaterial masterbatch is prepared as follows:

[0033] First, add 6.9kg of Honeywell polyethylene wax AC-629A and 0.1kg of sorbitan monooleate into a 20L reactor, set the heating temperature to 150°C, and turn on the agitator after the polyethylene wax melts. Stirring speed 500rpm, slowly add 3kgWackerN20 fumed silica (12nm) into the reaction kettle, after the addition is complete, stir and mix for 1 hour, take out the molten mixture, cool and solidify, and obtain nanomaterial masterbatch particles after crushing, the average particle size 3mm.

Embodiment 2

[0035] In the present embodiment, the nanomaterial masterbatch is prepared as follows:

[0036]First, add 6.9kg of modified ethylene bis fatty acid amide TAF and 0.1kg of sorbitan monopalmitate into a 20L reaction kettle, set the heating temperature to 150°C, and turn on the stirrer after the TAF is melted, and the stirring speed is 500rpm , slowly add 3kg AEROXIDE gas-phase nano-alumina AluC (13nm) into the reaction kettle, after the addition is complete, stir and mix for 1 hour, take out the molten mixture, cool and solidify, and obtain nano-alumina masterbatch particles after crushing, with an average particle size of 3mm .

Embodiment 3

[0038] In the present embodiment, described nanomaterial masterbatch is prepared as follows:

[0039] First, add 6.9kg of pentaerythritol tetrastearate and 0.1kg of sorbitan trioleate into a 20L reactor, set the heating temperature to 120°C, and after the pentaerythritol tetrastearate melts, start the agitator, Stirring speed 500rpm, 3kgDegussa gas-phase method nano-titanium dioxide AEROXIDETiO 2 P25 (21nm) was slowly added to the reactor, after the addition was completed, stirred and mixed for 1 hour, the molten mixture was taken out, cooled and solidified, and pulverized to obtain nanometer titanium dioxide masterbatch particles with an average particle size of 3mm.

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Abstract

The invention relates to a nanometer-material-compounded long-glass-fiber-reinforced polypropylene material and a preparing method thereof. The reinforced polypropylene material is prepared from, by weight, 40%-85% of polypropylene, 10%-50% of long glass fibers, 1%-5% of nanometer-material master batches, 1%-5% of compatibilizing agent and 0.2%-1% of antioxidant. According to the preparing method, nanometer materials are prepared to master batches to participate in the molding technology, the nanometer-material particles are evenly dispersed in polypropylene melt, and the performance of the composite material is greatly improved. The nanometer-material-compounded long-glass-fiber-reinforced polypropylene material has the excellent mechanical performance, and meanwhile has the excellent warping resistance.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a nanocomposite long glass fiber reinforced polypropylene composite material and a preparation method thereof. Background technique [0002] Long glass fiber reinforced polypropylene is one of the typical applications of "replacing steel with plastic". Compared with metal materials, it has the characteristics of low density, light weight, high specific strength, corrosion resistance, easy molding, and excellent dimensional stability. The integration of components can be realized, such as the automotive front-end module composed of dozens of metal parts, which can be completed at one time by injection molding of long glass fiber reinforced polypropylene, which greatly reduces the manufacturing cost. The use of long glass fiber reinforced polypropylene to replace metal materials and reinforced nylon materials in traditional applications has become a development trend in i...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08L23/08C08L35/06C08K13/04C08K7/14C08K3/36C08K5/526C08K5/372C08K3/22C08K5/20C08K5/134C08K5/103C08J3/22B29B9/06
CPCB29B9/06C08J3/223C08J3/226C08J2323/12C08J2423/06C08K2201/003C08K2201/011C08L23/12C08L2205/03C08L2205/24C08L23/06C08L23/0884C08K13/04C08K7/14C08K3/36C08K5/526C08K5/372C08L35/06C08K2003/2227C08K5/20C08K5/1345C08K2003/2241C08K5/103
Inventor 孟征贺芳孙兆懿钱晶郭新利黄兴宇吴超申娟苏昱安俊莹
Owner BEIJING INST OF AEROSPACE TESTING TECH
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