Preparation method of fiber-reinforced polypropylene composite and fiber-reinforced polypropylene composite prepared via preparation method

A composite material and fiber-reinforced technology, applied in the field of polypropylene materials, can solve problems such as immature research, achieve low cost, broad application prospects, and improve oxidation resistance

Inactive Publication Date: 2018-11-02
SUZHOU RUNJIA ENGINEER PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to make use of the advantages of polypropylene resin and polyacrylonitrile fiber and achieve the value of both is worth discussing, but the existing research is still not mature enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0020] A preparation method of fiber reinforced polypropylene composite material, comprising the following steps:

[0021] Step S1, weighing each reaction raw material by weight parts: polypropylene matrix, polyethylene, carbon fiber, modified polyacrylonitrile fiber, maleic anhydride grafted polypropylene, nucleating agent, antiaging agent, antioxidant and deodorization agent, the polypropylene matrix is ​​a polypropylene resin with a melt index of 2-20g / 10min;

[0022] Step S2, the polypropylene matrix, polyethylene, carbon fiber, modified polyacrylonitrile fiber, maleic anhydride grafted polypropylene, nucleating agent and antioxidant in step S1 are placed in a high-speed stirrer in sequence and heated at an appropriate temperature Stir evenly, then add anti-aging agent and deodorant to the high-speed mixer, and stir evenly again;

[0023] Step S3, blending, melting, extruding and granulating the mixture obtained in step S2 through a twin-screw extruder to obtain the desir...

Embodiment 1

[0030] A preparation method of fiber reinforced polypropylene composite material, comprising the following steps:

[0031] Step S1, weighing each reaction raw material by parts by weight: polypropylene matrix, polyethylene, carbon fiber, modified polyacrylonitrile fiber, maleic anhydride grafted polypropylene, β-nucleating agent, antiaging agent, antioxidant DSTP and deodorant, the polypropylene matrix is ​​a polypropylene resin with a melt index of 3g / 10min;

[0032] Step S2, the polypropylene matrix, polyethylene, carbon fiber, modified polyacrylonitrile fiber, maleic anhydride grafted polypropylene, nucleating agent and antioxidant in step S1 are placed in a high-speed stirrer in sequence and heated at an appropriate temperature Stir evenly, then add anti-aging agent and deodorant to the high-speed mixer, and stir evenly again;

[0033] Step S3, blending, melting, extruding and granulating the mixture obtained in step S2 through a twin-screw extruder to obtain the desired ...

Embodiment 2

[0039] A preparation method of fiber reinforced polypropylene composite material, comprising the following steps:

[0040]Step S1, weighing each reaction raw material by weight parts: polypropylene matrix, polyethylene, carbon fiber, modified polyacrylonitrile fiber, maleic anhydride grafted polypropylene, nucleating agent, antiaging agent, antioxidant and deodorization agent, the polypropylene matrix is ​​a polypropylene resin with a melt index of 2g / 10min;

[0041] Step S2, the polypropylene matrix, polyethylene, carbon fiber, modified polyacrylonitrile fiber, maleic anhydride grafted polypropylene, nucleating agent and antioxidant in step S1 are placed in a high-speed stirrer in sequence and heated at an appropriate temperature Stir evenly, then add anti-aging agent and deodorant to the high-speed mixer, and stir evenly again;

[0042] Step S3, blending, melting, extruding and granulating the mixture obtained in step S2 through a twin-screw extruder to obtain the desired p...

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Abstract

The invention discloses a preparation method of fiber-reinforced polypropylene composite and fiber-reinforced polypropylene composite prepared via the preparation method. The fiber-reinforced polypropylene composite is prepared by mixing well, at high temperature, a polypropylene matrix, polyethylene, carbon fiber, modified polyacrylonitrile fiber, maleic anhydride grafted polypropylene, a nucleating agent, an anti-aging agent, an antioxidant and a deodorant, performing melt blending, and granulating by extruding. Strength of the fiber-reinforced polypropylene composite and fiber-reinforced polypropylene composite can be enhanced via the carbon fiber and modified polyacrylonitrile fiber; the modified polyacrylonitrile fiber has a foaming function; the carbon fiber of light weight helps implement lightweight production; the polypropylene helps improve toughness of the composite; the anti-aging agent helps significantly improve aging resistance of the composite and extend the service life of the composite; in addition, oxidation resistance of the composite can be improved, the composite can adsorb peculiar odor in air to improve air quality, the preparation method is simple, the costis low, lightweight production of automobiles can be achieved, and the preparation method has a promising application prospect.

Description

technical field [0001] The invention relates to the technical field of polypropylene materials, in particular to a preparation method of a fiber-reinforced polypropylene composite material and a product thereof. Background technique [0002] As one of the four general-purpose plastics, polypropylene is widely used in industry, agriculture, transportation and daily life. How to modify polypropylene and improve its performance has become a hot topic in recent years. [0003] Polyacrylonitrile has organic solvent resistance, light resistance, weather resistance, mold resistance, good chemical stability, thermal stability and solution spinning film processing performance, etc., and polyacrylonitrile has a wide range of sources and is cheap. An ideal membrane material. How to utilize the advantages of polypropylene resin and polyacrylonitrile fiber and realize the value of both is worth discussing, but the existing research is still not mature enough. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L33/20C08L51/06C08L91/00C08K5/09C08K7/06C08J5/06C08J5/04C08J5/10
CPCC08J5/042C08J5/06C08J5/10C08J2323/12C08J2433/20C08J2423/06C08K5/09C08K7/06
Inventor 汪理文李庆贵何腾飞周明张辉江贵勇翁永华丁贤麟
Owner SUZHOU RUNJIA ENGINEER PLASTIC
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