Preparation method of multi-component low-density glass bead prepreg cloth

A technology of glass microspheres and low density, applied in chemical instruments and methods, glass/slag layered products, layered products, etc., can solve the problem of inability to realize rigid support and ablation of materials, reduce mechanical properties of materials, and density of FRP materials major issues

Active Publication Date: 2021-03-26
HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As a kind of heat insulation material, glass fiber reinforced plastic material is wound and cured by glass cloth/phenolic prepreg cloth. After molding, the material has the characteristics of high strength and ablation resistance, so it is mostly used as heat-resistant material. With the development needs of aircraft, Only heat protection can no longer meet the existing requirements, and it should also have high mechanical properties and low material density; the existing disclosed FRP material has a high density, and has the defect of poor mechanical properties; There is a demand for high-efficiency heat-insulating FRP materials with excellent thermal properties and certain mechanical properties
[0004] The existing disclosed low-density

Method used

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  • Preparation method of multi-component low-density glass bead prepreg cloth

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Experimental program
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Effect test

Embodiment 1

[0082] The equipment used in the mode of this embodiment includes a dipping machine, a glue spreader, and a composite machine; the structure of the glue dipping machine mainly consists of a glue tank, a cloth threading roller, a pre-curing furnace, a winding mechanism, etc., and the structure of the glue spreader mainly includes It is composed of glue tank, extrusion roller, pre-curing furnace, winding mechanism, etc. The structure of the compound machine is mainly composed of double-layer cloth threading rollers, film-removing rollers, pressing machine, heating roller, and rewinding mechanism. Embodiment 1, the manufacture of multi-component low-density glass bead prepreg

[0083] The specific operation is:

[0084] Step 1. Selection of materials and proportions: the preparation length is 20m, and the density requirement of the multi-component low-density glass bead prepreg cloth is ≤0.75kg / m 3 ; The tensile strength requirement is ≥ 25Mpa; the calculated ratio of the amount...

Embodiment 2

[0091] Embodiment 2, the manufacture of multi-component low-density glass bead prepreg

[0092] The specific operation is:

[0093] Step 1. Selection of materials and proportions: the preparation length is 50m, and the density requirement of the multi-component low-density glass bead prepreg cloth is ≤0.75kg / m 3 ; Tensile strength requirement is ≥ 25Mpa; Calculate the amount ratio of the used materials barium phenolic resin, glass fiber mesh cloth, and glass beads to be 5:4:2; Calculate the amount ratio between the large and small diameter glass beads 9:1; the model of large diameter glass beads is S20; the model of small diameter glass beads is S32;

[0094] Step 2. Heat treatment of glass fiber mesh cloth: put 12kg of glass fiber mesh cloth into the pre-curing furnace of the impregnation machine, conduct heat treatment at a temperature of 330°C, and then cool down to 90°C;

[0095] Step 3. Impregnating fiber cloth: Take 3kg of barium phenolic resin and pour it into the glu...

Embodiment 3

[0099] Embodiment 3, the manufacture of multi-component low-density glass bead prepreg

[0100] The specific operation is:

[0101] Step 1. Selection of materials and proportions: the preparation length is 20m, and the density requirement of the multi-component low-density glass bead prepreg cloth is ≤0.75kg / m 3 ; The tensile strength requirement is ≥ 25Mpa; the calculated ratio of the used materials barium phenolic resin, glass fiber mesh cloth, and glass beads is 4:3:2; calculate the amount ratio between the large and small diameter glass beads 8:1; the model of large diameter glass beads is S15; the model of small diameter glass beads is S25;

[0102] Step 2. Heat treatment of glass fiber mesh cloth: put 3kg of glass fiber mesh cloth into the pre-curing furnace of the impregnation machine, conduct heat treatment at a temperature of 350°C, and then cool down to 110°C;

[0103] Step 3. Impregnating fiber cloth: Take 0.33kg of barium phenolic resin and pour it into the glue ...

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Abstract

The invention discloses a preparation method of multi-component low-density glass bead prepreg cloth, wherein the preparation method comprises the steps: carrying out spatial staggered arrangement on2-5 different specifications of glass beads in resin to press an adhesive film, and pressing the adhesive film on which the glass beads are arranged in a staggered manner into fiber cloth to obtain the multi-component low-density glass bead prepreg cloth. According to the preparation method of the multi-component low-density glass bead prepreg cloth, the density of the prepared glass bead prepregcloth is low; the ablation capability of the material is ensured, and meanwhile, the mechanical strength and the heat insulation effect are good.

Description

technical field [0001] The invention belongs to the technical field of composite heat insulation materials, and in particular relates to a preparation method of a multi-component low-density glass bead prepreg cloth. Background technique [0002] With the development of aerospace vehicles, the demand for heat insulation and heat-proof materials is also increasing, and higher requirements are put forward for the heat insulation performance of heat insulation and heat-proof materials. For example, the flight speed of an aerospace vehicle maneuvers within the range of 5 Ma to 10 Ma, and the outer surface temperature of the aerospace vehicle reaches a maximum of 1000 to 1300 °C during flight. In order to ensure the long-term safe and normal flight of aerospace vehicles, the materials used in aerospace vehicles should have good ablation resistance and good heat insulation performance, as well as high mechanical properties and low density. Ensure that equipment failure and damage...

Claims

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Application Information

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IPC IPC(8): B32B17/04B32B17/10B32B27/12B32B27/04B32B27/20B32B33/00B32B37/02B32B37/06B32B37/26B32B37/10B32B38/00B32B38/08C09J161/14C09J11/04C09J7/10C09J7/30B64C1/00
CPCB32B5/028B32B5/024B32B27/12B32B27/20B32B33/00B32B37/02B32B37/06B32B37/10B32B38/0036B32B38/08B32B37/26C09J161/14C09J11/04C09J7/10C09J7/30B64C1/00B32B2037/268C08K2201/014B32B2250/03B32B2250/40B32B2260/021B32B2260/046B32B2264/101B32B2307/304B32B2605/18C08K7/20Y02T50/40
Inventor 杨戈沈亚东夏雨王华侨付忠奎曹硕郑张宜张文鹏
Owner HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL
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