Lightweight warping-resistant continuous glass fiber enhanced polypropylene composite material, and preparation method thereof

A continuous glass fiber and composite material technology is applied in the field of filling glass fiber reinforced polypropylene composite materials with hollow glass microspheres and the field of preparation, and can solve the problems of high density, high use cost, hollow glass microspheres, and high density of glass fiber reinforced polypropylene composite materials. Easy to break and other problems, to achieve the effect of excellent material performance and high density

Inactive Publication Date: 2018-04-10
SINOSTEEL MAANSHAN INST OF MINING RES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems in the prior art that only ultra-fine hollow microspheres with a particle size of about 20 μm can be used, the cost of use is high, the hollow glass microspheres are easily broken, and the glass fiber reinforced polypropylene composite material has high density and is easy to warp. To solve the above problems, and provide a low-cost lightweight anti-warping continuous glass fiber reinforced polypropylene composite material

Method used

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  • Lightweight warping-resistant continuous glass fiber enhanced polypropylene composite material, and preparation method thereof
  • Lightweight warping-resistant continuous glass fiber enhanced polypropylene composite material, and preparation method thereof
  • Lightweight warping-resistant continuous glass fiber enhanced polypropylene composite material, and preparation method thereof

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Effect test

Embodiment 1

[0034]

[0035] Dosing according to the above ratio, mix polypropylene, compatibilizer, antioxidant, lubricant, coupling agent evenly in a high-speed mixer, then feed the mixture into the extruder from the main feed port, and continuously The glass fiber is fed into the extruder from the long glass fiber feed port, and the hollow microspheres are fed into the extruder from the side feed port; the speed of the main engine is controlled at 300-420 rpm, and the temperature of the barrel is controlled at 180-220°C .

Embodiment 2

[0037]

[0038]

[0039] Dosing according to the above ratio, mix polypropylene, compatibilizer, antioxidant, lubricant, coupling agent evenly in a high-speed mixer, then feed the mixture into the extruder from the main feed port, and continuously The glass fiber is fed into the extruder from the long glass fiber feed port, and the hollow microspheres are fed into the extruder from the side feed port; the speed of the main engine is controlled at 300-420 rpm, and the temperature of the barrel is controlled at 180-220°C .

Embodiment 3

[0041]

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Abstract

The invention discloses a lightweight warping-resistant continuous glass fiber enhanced polypropylene composite material, and a preparation method thereof. 100 parts of the lightweight warping-resistant continuous glass fiber enhanced polypropylene composite material comprises, by mass, 45.2 to 65 parts of polypropylene, 25 to 35 parts of continuous glass fiber, 6 to 12 parts of hollow bead, 2 to5 parts of a compatilizer, 0.3 to 0.8 part of an anti-oxidant, 0.5 to 1.0 part of a lubricant, and 0.3 to 1.0 part of a coupling agent. The lightweight warping-resistant continuous glass fiber enhanced polypropylene composite material is obtained via uniform mixing and extrusion processing. Full utilization of the advantages of hollow beads that intensity is low and isotropy is achieved is realized, problems of glass fiber enhanced polypropylene composite materials such as high density and easily caused warping are solved without influencing the physical mechanical properties of glass fiber enhanced polypropylene; the commercial available hollow bead products and continuous glass fiber relatively low in cost are selected to realize strict control on raw material cost. The preparation method is capable of ensuring the shearing strength of continuous glass fiber, and avoiding broken of hollow beads at the same time; and the performance of the prepared materials are better.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a glass fiber-reinforced polypropylene composite material filled with hollow glass microspheres and a preparation method thereof. Background technique [0002] Due to its low price, excellent processing performance and excellent comprehensive application performance, polypropylene has been widely used in the fields of automobiles, household appliances, electric tools, rail transit, aerospace and other fields. With the improvement of modified plastic technology and process, the increasing pressure of raw material prices and the increasingly fierce competition of downstream plastic products, glass fiber reinforced polypropylene replaces glass fiber reinforced polyamide and glass fiber reinforced polybutylene terephthalate Ester has become an inevitable trend in the development of the modified plastics industry. [0003] Glass fiber reinforced polypr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/10C08L51/06C08K7/14C08K7/24C08K7/28C08K5/134C08K5/526C08J5/04B29C47/40B29C47/92B29C48/92
CPCB29C48/40B29C48/92B29C2948/9258B29C2948/92704C08J5/043C08J2323/10C08J2451/06C08K7/14C08K7/24C08K7/28
Inventor 汪俊吴喜元陈锐汪光辉
Owner SINOSTEEL MAANSHAN INST OF MINING RES
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