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Inorganic/organic composite high temperature ablation resistant material and preparation method thereof

An ablation material and high-temperature-resistant technology, which is applied in the field of inorganic/organic composite high-temperature-resistant ablation materials and their preparation, can solve problems such as single raw materials and insufficient high-temperature resistance, and achieve improved mechanical strength, enhanced resistance, and The effect of high temperature ablation performance improvement

Inactive Publication Date: 2018-12-25
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides an inorganic / organic composite high-temperature-resistant ablation material and its preparation method, which effectively solves the problems of the existing high-temperature-resistant ablation material with single raw materials and insufficient high-temperature resistance

Method used

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  • Inorganic/organic composite high temperature ablation resistant material and preparation method thereof
  • Inorganic/organic composite high temperature ablation resistant material and preparation method thereof
  • Inorganic/organic composite high temperature ablation resistant material and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0032] An inorganic / organic composite high-temperature ablation-resistant material, comprising the following components by weight:

[0033] 48.75 parts of epoxy resin A glue, 48.75 parts of epoxy resin B glue, 2.5 parts of inorganic mixture and 0.025 parts of KH550.

[0034] The preparation method of the above-mentioned inorganic / organic composite high-temperature ablation-resistant material comprises the following steps:

[0035] (1) Mix silica powder, zirconia powder, boric acid and lanthanum hexaboride powder at room temperature, and stir to obtain an inorganic mixture; wherein, silica powder, zirconia powder, boric acid and lanthanum hexaboride The mass ratio of powder is 59:19:19:5;

[0036] (2) Mix the inorganic mixture and KH550 according to the formula, divide them into two equal parts, add them to epoxy resin A glue and epoxy resin B glue respectively, stir for 4 hours, ultrasonically disperse for 10 minutes, and continue magnetic stirring for 4 hours to obtain Mixt...

Embodiment 2

[0039] An inorganic / organic composite high-temperature ablation-resistant material, comprising the following components by weight:

[0040] 47.5 parts of epoxy resin A glue, 47.5 parts of epoxy resin B glue, 5 parts of inorganic mixture and 0.05 parts of KH5500.

[0041] The preparation method of the above-mentioned inorganic / organic composite high-temperature ablation-resistant material comprises the following steps:

[0042] (1) Mix silica powder, zirconia powder, boric acid and lanthanum hexaboride powder at room temperature, and stir to obtain an inorganic mixture; wherein, silica powder, zirconia powder, boric acid and lanthanum hexaboride The mass ratio of powder is 57:19:19:5;

[0043] (2) Mix the inorganic mixture and KH550 according to the formula, divide them into two equal parts, add them to epoxy resin A glue and epoxy resin B glue respectively, stir for 4 hours, ultrasonically disperse for 10 minutes, and continue magnetic stirring for 4 hours to obtain Mixture ...

Embodiment 3

[0046] An inorganic / organic composite high-temperature ablation-resistant material, comprising the following components by weight:

[0047] 44 parts of epoxy resin A glue, 44 parts of epoxy resin B glue, 12 parts of inorganic mixture and 0.12 parts of KH550.

[0048] The preparation method of the above-mentioned inorganic / organic composite high-temperature ablation-resistant material comprises the following steps:

[0049] (1) Mix silica powder, zirconia powder, boric acid and lanthanum hexaboride powder at room temperature, and stir to obtain an inorganic mixture; wherein, silica powder, zirconia powder, boric acid and lanthanum hexaboride The mass ratio of powder is 57:19:19:5;

[0050] (2) Mix the inorganic mixture and KH550 according to the formula, divide them into two equal parts, add them to epoxy resin A glue and epoxy resin B glue respectively, stir for 4 hours, ultrasonically disperse for 10 minutes, and continue magnetic stirring for 4 hours to obtain Mixture I an...

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Abstract

The invention discloses an inorganic / organic composite high temperature ablation material and a preparation method thereof. The material includes the following components by weight: 80-98 parts of organic matrix, 2.5-20 parts of inorganic mixture, 8-14.7 parts of curing agent, 0.16-5.88 parts of vulcanizing agent and 0.01-0.8 parts of surfactant; its preparation method is : (1) mix silica powder, zirconium dioxide powder, boric acid and lanthanum hexaboride powder at room temperature, and stir to obtain an inorganic mixture; (2) add inorganic mixture, vulcanizing agent and surfactant into organic mixture according to the formula In the matrix, after stirring, ultrasonically, mix evenly, and add a curing agent in an ice-water bath; (3) degas the product obtained in step (2) under the condition of 10-2Pa, and then solidify to obtain a composite high-temperature ablation-resistant material. The composite high temperature resistant ablation material prepared by the invention has strong high temperature resistance, low cost and strong practicability.

Description

technical field [0001] The invention relates to the technical field of high-temperature ablation-resistant composite materials, in particular to an inorganic / organic composite high-temperature-resistant ablation material and a preparation method thereof. Background technique [0002] High-temperature ablation-resistant composite materials (such as carbon / carbon composite materials, carbon / phenolic composite materials) have the characteristics of high specific strength, high specific modulus, high temperature resistance, ablation resistance, impact resistance, etc., and have been widely used in the aerospace field At present, it is gradually replacing traditional materials such as ferrous metals and non-ferrous metals, and has become the main material for lightweight structures and heat-resistant structures. Spacecraft will withstand 7000-8000K ultra-high temperature, tens of megawatts of heat flux per square meter, 100 acceleration overloads, high-speed erosion of particle c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08L61/06C08L83/04C08K13/06C08K9/06C08K3/36C08K3/22C08K3/38
CPCC08K3/22C08K3/36C08K3/38C08K9/06C08K13/06C08L61/06C08L63/00C08L83/04C08L2201/08C08L2205/025C08K2003/2244C08K2003/387
Inventor 宋远强慕春红冉奥黄武桐邓凯李俊鹏
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA