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A kind of high impregnation degree long glass fiber reinforced polypropylene composite material and preparation method thereof

A technology of composite materials and impregnation degree, which is applied in the field of high impregnation degree long glass fiber reinforced polypropylene composite materials and its preparation, can solve the problems of reducing the interaction force and not improving the degree of impregnation of glass fibers, so as to increase energy consumption and impact The effect of increasing strength

Active Publication Date: 2022-08-09
QUANGANG PETROCHEM RES INST OF FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned patents mainly use the anti-floating fiber agent to reduce the interaction force between the mold surface and the melt to reduce the floating fiber phenomenon on the surface of the part as much as possible, and do not improve the impregnation degree of the glass fiber in the material, and cannot fundamentally solve the problem of glass on the surface of the part. Fiber Agglomeration Defect

Method used

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  • A kind of high impregnation degree long glass fiber reinforced polypropylene composite material and preparation method thereof
  • A kind of high impregnation degree long glass fiber reinforced polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1) After the continuous glass fiber is drawn through the glass fiber heating pre-dispersing device and cooling device, it is electrified by silk friction, and finally passes through the static electricity generating device, and then enters the dipping tank with polypropylene melt. The electrostatic generating device is composed of two parts, the first part is composed of an electrostatic electret electrostatic generator, a high-voltage line, a bracket, an insulating support, and a molybdenum wire part; the second part is composed of a heating device;

[0024] 2) Weigh 63.2 parts of raw polypropylene resin (Yangzi Petrochemical XPJ-3100H, melting value is 100g / 10min, 2.16kg, 230°C) according to the weight ratio, and dry in an oven; add 5 parts of maleic anhydride grafted polymer Propylene, 3 parts of EPDM grafted with maleic anhydride, 0.2 part of hindered phenol antioxidant 1010, 0.1 part of phosphite antioxidant 168, and 0.5 part of pentaerythritol stearate were stirred...

Embodiment 2

[0027] 1) After the continuous glass fiber is drawn through the glass fiber heating pre-dispersing device and cooling device, it is electrified by silk friction, and finally passes through the static electricity generating device, and then enters the dipping tank with polypropylene melt. The electrostatic generating device is composed of two parts, the first part is composed of an electrostatic electret electrostatic generator, a high-voltage line, a bracket, an insulating support, and a molybdenum wire part; the second part is composed of a heating device;

[0028] 2) Weigh 53.2 parts of raw polypropylene resin (Yangzi Petrochemical XPJ-3100H, melting value is 100g / 10min, 2.16kg, 230°C) according to the weight ratio, and dry in an oven; add 4 parts of maleic anhydride grafted polymer Propylene, 3 parts of maleic anhydride grafted POE, 0.2 part of hindered phenol antioxidant 1010, 0.1 part of phosphite antioxidant 168, 0.5 part of glyceryl stearate were stirred and mixed well i...

Embodiment 3

[0031] 1) After the continuous glass fiber is drawn through the glass fiber heating pre-dispersing device and cooling device, it is electrified by silk friction, and finally passes through the static electricity generating device, and then enters the dipping tank with polypropylene melt. The electrostatic generating device is composed of two parts, the first part is composed of an electrostatic electret electrostatic generator, a high-voltage line, a bracket, an insulating support, and a molybdenum wire part; the second part is composed of a heating device;

[0032] 2) Weigh 43.2 parts of raw polypropylene resin (Yangzi Petrochemical XPJ-3100H, melting value 100g / 10min, 2.16kg, 230°C) according to the weight ratio, and dry in an oven; add 3 parts of maleic anhydride grafted polymer Propylene, 3 parts of maleic anhydride grafted SEBS, 0.3 parts of antioxidant GA80, 0.3 parts of erucic acid amide were stirred and mixed evenly in a high-speed machine, and then entered the dipping ...

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Abstract

The invention discloses a high-impregnation long glass fiber reinforced polypropylene composite material and a preparation method thereof. The composite material is composed of the following raw materials in parts by weight: 43.2-63.2 parts of polypropylene resin, 30-50 parts of glass fiber, compatible with 1 to 10 parts of the agent, 1 to 10 parts of the toughening agent, 0.1 to 1 part of the antioxidant, and 0.2 to 2 parts of the lubricant. After the glass fiber online passes through the glass fiber heating pre-dispersing device and the cooling device, it is electrified by silk friction, and finally the static electricity generating device directly enters the dipping tank for production. The present invention has the following technical effects: the high-impregnation long glass fiber reinforced polypropylene composite material of the present invention realizes that each glass fiber is wrapped with polypropylene resin, which protects the glass fiber from being damaged during the plasticizing process of the pellets, thereby retaining The length of glass fiber in the product, its tensile strength, flexural modulus, impact strength and other properties have been greatly improved.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and particularly relates to a high-impregnation long glass fiber reinforced polypropylene composite material and a preparation method thereof. Background technique [0002] Polypropylene resin is a general-purpose plastic with a wide range of applications. It is one of the varieties with the smallest density among all plastics. It has the advantages of good formability and chemical resistance. It has higher requirements for parts, and its mechanical properties are different from those of engineering plastics, so it cannot be used as a structural part. Glass fiber has many excellent properties such as high mechanical strength, good heat resistance and strong corrosion resistance, and is widely used in electronic equipment, building materials, sports equipment, aircraft and automobiles and other fields. The mechanical properties and dimensional stability of glass fiber reinforced polypro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/08C08L23/12C08L51/06C08L51/04C08L51/00C08K9/00C08K7/14B29B9/06
CPCC08J5/08B29B9/06C08J2323/12C08J2451/06C08J2451/04C08J2451/00C08K9/00C08K7/14
Inventor 柯俊沐陈登龙郭振雄吴健健陈明鹏刘志鹏
Owner QUANGANG PETROCHEM RES INST OF FUJIAN NORMAL UNIV
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