Glass fiber reinforced polypropylene composite material and preparation method thereof

A composite material, glass fiber technology, applied in the field of glass fiber reinforced polypropylene composite material and its preparation, to achieve the effects of excellent rigidity and toughness, improved fluidity and warpage resistance, excellent wear resistance and toughness

Inactive Publication Date: 2018-11-30
合肥岑遥新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for some special long glass fiber reinforced parts, when it is impossible to change the injection molding process and change the structure of the part to achieve the effect of dimensional stability of the part, the warpage resistance of the material is very important

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A glass fiber reinforced polypropylene composite material, consisting of the following raw materials in parts by weight: 50 parts of polypropylene, 15 parts of long glass fiber, 1 part of antioxidant, 10 parts of flat glass fiber, 10 parts of epoxy resin, and 5 parts of silica sol , 2 parts of graphene, 1 part of tungsten carbide, 5 parts of additives and appropriate amount of water.

[0019] The auxiliary agent includes: 2 to 3 parts of coupling agent, 2 to 3 parts of surfactant, 1 to 2 parts of curing agent, 0.8 to 1.2 parts of binder, 0.6 to 0.8 parts of foaming agent and 0.1 to 0.1 parts of flame retardant 0.5 servings.

[0020] The curing agent is one or more of p-toluenesulfonic acid, xylenesulfonic acid, benzenesulfonic acid, oxalic acid and phosphoric acid.

[0021] The flame retardant is one or more of borax, boric acid, sodium phosphate, sodium tungstate, water glass and antimony trioxide.

[0022] The binding agent is sodium carboxymethyl cellulose or polyv...

Embodiment 2

[0026] A glass fiber reinforced polypropylene composite material, consisting of the following raw materials in parts by weight: 60 parts of polypropylene, 20 parts of long glass fiber, 2 parts of antioxidant, 15 parts of flat glass fiber, 13 parts of epoxy resin, and 7 parts of silica sol , 4 parts of graphene, 2 parts of tungsten carbide, 7 parts of additives and appropriate amount of water.

[0027] The auxiliary agent includes: 2 to 3 parts of coupling agent, 2 to 3 parts of surfactant, 1 to 2 parts of curing agent, 0.8 to 1.2 parts of binder, 0.6 to 0.8 parts of foaming agent and 0.1 to 0.1 parts of flame retardant 0.5 part; the curing agent is one or more of p-toluenesulfonic acid, xylenesulfonic acid, benzenesulfonic acid, oxalic acid and phosphoric acid; the flame retardant is borax, boric acid, sodium phosphate, sodium tungstate, One or more of water glass and antimony trioxide; the binder is sodium carboxymethyl cellulose or polyvinyl alcohol.

[0028] A method for p...

Embodiment 3

[0031] A glass fiber reinforced polypropylene composite material, consisting of the following raw materials in parts by weight: 70 parts of polypropylene, 25 parts of long glass fiber, 3 parts of antioxidant, 20 parts of flat glass fiber, 16 parts of epoxy resin, and 10 parts of silica sol , 6 parts of graphene, 3 parts of tungsten carbide, 10 parts of additives and appropriate amount of water.

[0032] The auxiliary agent includes: 2 to 3 parts of coupling agent, 2 to 3 parts of surfactant, 1 to 2 parts of curing agent, 0.8 to 1.2 parts of binder, 0.6 to 0.8 parts of foaming agent and 0.1 to 0.1 parts of flame retardant 0.5 part; the curing agent is one or more of p-toluenesulfonic acid, xylenesulfonic acid, benzenesulfonic acid, oxalic acid and phosphoric acid; the flame retardant is borax, boric acid, sodium phosphate, sodium tungstate, One or more of water glass and antimony trioxide; the binder is sodium carboxymethyl cellulose or polyvinyl alcohol.

[0033] A method for...

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PUM

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Abstract

The present invention discloses a glass fiber reinforced polypropylene composite material. The glass fiber reinforced polypropylene composite material consists of the following raw materials: polypropylene, long glass fiber, an antioxidant, flat glass fiber, epoxy resin, silica sol, graphene, tungsten carbide, an auxiliary agent and an appropriate amount of water. The present invention also discloses a preparation method of the glass fiber reinforced polypropylene composite material. The glass fiber reinforced polypropylene composite material overcomes a warpage problem of components due to glass fiber orientation in a production process of long glass fiber reinforced polypropylene. A modification method for improving the fluidity and the warpage resistance of the polypropylene is provided. The modified polypropylene material with excellent fluidity, compatibility, rigidity and toughness is prepared. At the same time, the modified polypropylene material also has excellent wear resistance and toughness.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a glass fiber reinforced polypropylene composite material and a preparation method thereof. Background technique [0002] The long glass fiber reinforced polypropylene material is anisotropic due to the orientation of the glass fiber in the part, which causes the dimension of the part to change. Generally, there are several factors that affect the dimensional stability of long glass fiber reinforced polypropylene materials. One is the degree of isotropy of the glass fiber; the other is the cross-sectional shape of the glass fiber. Usually the degree of isotropy of the glass fibers in the part is related to the orientation of the glass fibers during the injection molding process. [0003] In the injection molding process of long glass fiber reinforced parts, the warping degree of parts can be improved by adjusting the position of the weld line in the injection molding p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L63/00C08K7/14C08K3/36C08K3/04C08K3/14C08J5/04
CPCC08J5/043C08J2323/12C08J2463/00C08K3/042C08K3/14C08K3/36C08K7/14
Inventor 万明军
Owner 合肥岑遥新材料科技有限公司
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