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Preparation method of glass fiber reinforced composite material

A technology for reinforcing composite materials and glass fibers, applied in the field of fiber-reinforced composite materials, can solve the problems of high dielectric constant and loss value, unfavorable application, etc., and achieve the effect of improving mechanical properties

Inactive Publication Date: 2021-06-22
袁瑶
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dielectric constant and loss value of most of the existing resin matrix composite materials are still high, which is not conducive to the application in the above fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of the glass fiber reinforced composite material of the present embodiment comprises the following steps:

[0023] Step 1, using the silane coupling agent KH560 to treat the nanomaterial, then adding an organic solvent to the treated nanomaterial, stirring evenly to obtain a mixture; the nanomaterial is nanoscale potassium hexatitanate; the organic solvent is acetone, The quality of the organic solvent is 10% of the quality of the nanomaterial; the stirring speed is 5000rpm;

[0024] Step 2, adding a filler to the mixture described in step 1, and ultrasonically dispersing; the filler is micron-sized talcum powder;

[0025] Step 3, adding the mixture after the ultrasonic dispersion treatment in step 2 into the epoxy resin treated with the epoxy-containing silane coupling agent, stirring evenly to obtain the impregnating liquid; the mass content of the nanomaterial in the impregnating liquid is 1%, the mass content of the filler is 3%; the epoxy-co...

Embodiment 2

[0030] The preparation method of the glass fiber reinforced composite material of the present embodiment comprises the following steps:

[0031] Step 1, using silane coupling agent KH560 to process nanomaterials, then adding an organic solvent to the treated nanomaterials, stirring evenly to obtain a mixture; the nanomaterials are nanoscale Al 2 o 3 ; The organic solvent is acetone, and the quality of the organic solvent is 15% of the quality of the nanomaterial; the stirring speed is 7000rpm;

[0032] Step 2, adding filler to the mixture described in step 1, and ultrasonically dispersing; the filler is Si 3 N 4 Whiskers;

[0033] Step 3, adding the mixture after the ultrasonic dispersion treatment in step 2 into the epoxy resin treated with the epoxy-containing silane coupling agent, stirring evenly to obtain the impregnating liquid; the mass content of the nanomaterial in the impregnating liquid is 5%, the mass content of the filler is 1%; the epoxy-containing silane cou...

Embodiment 3

[0038] The preparation method of the glass fiber reinforced composite material of the present embodiment comprises the following steps:

[0039] Step 1, using the silane coupling agent KH560 to treat the nanomaterials, then adding an organic solvent to the treated nanomaterials, stirring evenly to obtain a mixture; the nanomaterials are nanoscale silicate, nanoscale SiO 2 and nanoscale Al 2 o 3 (mass ratio is 1:1:1); The organic solvent is acetone, and the quality of the organic solvent is 12% of the nanomaterial quality; The speed of the stirring is 6000rpm;

[0040] Step 2, adding fillers to the mixture described in step 1, and ultrasonically dispersing; the fillers are micron talcum powder and Si 3 N 4 Whiskers (mass ratio is 2:1);

[0041] Step 3, adding the mixture after the ultrasonic dispersion treatment in step 2 into the epoxy resin treated with the epoxy-containing silane coupling agent, stirring evenly to obtain the impregnating liquid; the mass content of the n...

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Abstract

The invention provides a preparation method of a glass fiber reinforced composite material, which comprises the steps of 1, treating a nano material by using a silane coupling agent, then adding an organic solvent into the treated nano material, and uniformly stirring to obtain a mixture; 2, adding a filler into the mixture, and carrying out ultrasonic dispersion treatment; 3, adding the mixture subjected to ultrasonic dispersion treatment into molten epoxy resin treated by a silane coupling agent containing an epoxy group, and uniformly stirring to obtain impregnation liquid; 4, laying two-way woven continuous glass fiber cloth and brushing the steeping liquor to prepare a preform; and 5, carrying out mold pressing and curing on the perform to obtain the glass fiber reinforced composite material. The bending strength of the glass fiber reinforced composite material prepared by the method disclosed by the invention is 700 MPa to 900 MPa, the dielectric constant is 3.3 to 3.5, and the tensile strength reaches 500 MPa to 600 MPa.

Description

technical field [0001] The invention belongs to the technical field of fiber-reinforced composite materials, and in particular relates to a preparation method of glass fiber-reinforced composite materials. Background technique [0002] Glass fiber reinforced thermosetting resin refers to fiber reinforced composite materials that use glass fiber as a reinforcing material and thermosetting resin (including epoxy resin, phenolic resin, epoxy resin, etc.) as a matrix. Because of its small specific gravity and high specific strength, it is widely used. In aviation, aerospace, automobiles, ships, circuit boards, wind power and other fields. [0003] Epoxy resins are excellent thermosetting resins. Compared with the unsaturated polyester resin widely used at present, it has better mechanical properties, electrical insulation, chemical resistance, heat resistance and adhesive properties. Glass fiber reinforced epoxy resin composite material is a widely used composite material, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K13/06C08K9/06C08K7/14C08K3/34C08K3/24C08K7/10C08K3/22C08K3/36
CPCC08K3/22C08K3/24C08K3/34C08K3/36C08K7/10C08K7/14C08K9/06C08K13/06C08K2003/2227C08K2201/011C08L63/00
Inventor 不公告发明人
Owner 袁瑶