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Preparation method for domestic carbon cloth pre-impregnated adhesive tape

A pre-impregnation, carbon cloth technology, applied in the coating and other directions, can solve the problems of high brittleness, poor wettability, and many burrs of carbon cloth, achieve uniform quality, stable glue viscosity and specific gravity, and promote penetration.

Active Publication Date: 2012-07-11
XIAN AEROSPACE COMPOSITE MATERIALS INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are some differences between the domestic raw silk woven carbon cloth and the imported raw silk carbon cloth, mainly in the poor wetting performance of the resin on the domestic 1K carbon cloth, the carbon cloth is brittle and has many burrs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1. Weave 1K domestic T300 grade carbon fibers into 1K plain carbon cloth by conventional weaving method; the warp direction weaving density of the 1K plain weave carbon cloth is 95 pieces / 100mm, the weft direction weaving density is 96 pieces / 100mm, and the surface density is 128.1g / cm 2 , a thickness of 0.16mm; no sizing agent or water is added in the weaving process; the tensile strength of the domestic T300 grade carbon fiber is 3.50GPa, the Young's modulus is 220GPa, and the linear density is (66 ± 2) g / 1000m;

[0025] Step 2, arrange the carbon described in step 1 on the cloth rack of the dipping machine, and then send it into a heat treatment furnace with a temperature of 100°C at a speed of 95m / h for heat treatment;

[0026] Step 3: Dilute the phenolic resin with alcohol into a phenolic resin glue solution with a specific gravity of 1.09, pour the phenolic resin glue solution into the glue tank of the dipping machine, and then send the heat-treated carbon ...

Embodiment 2

[0030] Step 1. Weaving 1K domestic T300 grade carbon fibers into 1K plain carbon cloth by conventional weaving method; 133.3g / cm 2 , the thickness is 0.165mm; no sizing agent and water can be added in the weaving process; the domestic T300 grade carbon fiber is 1K carbon fiber developed and produced in my country, its tensile strength reaches 3.50GPa, Young's modulus reaches 220GPa, linear density (66±2)g / 1000m;

[0031] Step 2, arrange the carbon described in step 1 on the cloth rack of the dipping machine, and then send it into a heat treatment furnace with a temperature of 105°C at a speed of 100m / h for heat treatment;

[0032] Step 3: Dilute the phenolic resin with alcohol into a phenolic resin glue solution with a specific gravity of 1.08, pour the phenolic resin glue solution into the glue tank of the dipping machine, and then send the heat-treated carbon cloth into the dipping machine in step 2 In the glue tank, the carbon cloth is pre-impregnated with phenolic resin g...

Embodiment 3

[0036] Step 1. Weave 1K domestic T300 grade carbon fibers into 1K plain weave carbon cloth by conventional weaving method; 135g / cm 2 , the thickness is 0.165mm; no sizing agent and water can be added in the weaving process; the domestic T300 grade carbon fiber is 1K carbon fiber developed and produced in my country, its tensile strength reaches 3.50GPa, Young's modulus reaches 220GPa, linear density (66±2)g / 1000m;

[0037] Step 2, arrange the carbon described in step 1 on the cloth rack of the dipping machine, and then send it into a heat treatment furnace with a temperature of 110°C at a speed of 90m / h for heat treatment;

[0038] Step 3: Dilute the phenolic resin with alcohol into a phenolic resin glue solution with a specific gravity of 1.08, pour the phenolic resin glue solution into the glue tank of the dipping machine, and then send the heat-treated carbon cloth into the dipping machine in step 2 In the glue tank, the carbon cloth is pre-impregnated with phenolic resin ...

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Abstract

The invention discloses a preparation method for a domestic carbon cloth pre-impregnated adhesive tape. The method comprises the following steps of: 1, weaving domestic T3100 level 1K carbon fibers into 1K plane weave carbon cloth by using the conventional weaving method; 2, placing the carbon cloth on a cloth placing rack of an impregnator and feeding into a thermal treatment furnace to perform thermal treatment; 3, feeding the carbon cloth which is subjected to the thermal treatment into an adhesive tank of the impregnator, and pre-impregnating with phenolic resin adhesive solution under a constant temperature condition to obtain adhesive fabric; and 4, feeding the adhesive fabric into a drying furnace to dry, and then coiling and packaging the dried adhesive fabric to obtain the domestic carbon cloth pre-impregnated adhesive tape. The domestic carbon cloth pre-impregnated adhesive tape prepared by using the method provided by the invention has unified quality; each item of performance reaches the technical requirements of the pre-impregnated adhesive tape in GJB3402-98 carbon cloth / phenolic aldehyde-high silica cloth / phenolic aldehyde composite winding product specification, and the production demand and the quality stability requirements of a heat insulating layer of a spray pipe expansion section of a solid rocket engine are met.

Description

technical field [0001] The invention belongs to the technical field of manufacturing key components of a solid rocket motor nozzle, and in particular relates to a preparation method of a domestic carbon cloth pre-impregnated adhesive tape. Background technique [0002] The heat insulation layer of the expansion section is the core component of the nozzle of the solid rocket motor. The expansion section converts the chemical energy generated by the propellant combustion into the kinetic energy of the gas flow during the working process of the engine, and drives the entire engine to move. The working environment of the thermal insulation layer in the expansion section is very complicated and harsh. It directly contacts with high-temperature gas, and works in an environment of high temperature, high pressure, high-flow heat flow containing high-component aluminum particles, and strong vibration. Therefore, various thermodynamic performance requirements for the product are also r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B15/10B29B11/00
Inventor 杨长红杨学军李瑞珍陈轶华阚宏文李建
Owner XIAN AEROSPACE COMPOSITE MATERIALS INST
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