Preparation method of quartz fiber/chrome aluminum phosphate-based high temperature wave-transmitting material

A high-temperature wave-transmitting, chromium-aluminum phosphate technology, applied in chemical instruments and methods, lamination devices, lamination auxiliary operations, etc., can solve the problem of weak mechanical properties of silicon-based composite materials, limiting the application of silicon-based composite materials, and bearing loads Limited capacity and other issues, to achieve the effect of reducing the dielectric constant, good heat resistance, and improving coagulation

Inactive Publication Date: 2012-06-27
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silicon-based composite material has excellent dielectric properties and good high temperature resistance, and is a stable wave-transmitting material, but the main chain of silicon-based composite material is very flexible, the intermolecular force is small, and the effective crosslinking density is low, so The mechanical properties of silicon-based composite materials are weak, and the ability to bear loads is limited, which largely limits the application of silicon-based composite materials. At present, silicon-based composite materials are widely used in the field of Russian aerospace wave-transmitting materials.

Method used

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  • Preparation method of quartz fiber/chrome aluminum phosphate-based high temperature wave-transmitting material

Examples

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Embodiment 1

[0030] A method for preparing a quartz fiber / chromium aluminum phosphate-based high-temperature wave-transmitting material, comprising the following steps:

[0031] a. Take the quartz fiber cloth and heat it at 200°C for 2 hours to remove impurities such as wetting agent and wax layer on the surface of the quartz fiber cloth, cool down, and then coat the surface of the quartz fiber cloth (by brushing, spraying, etc., (preferably evenly coated) protective coating to obtain a protective coated quartz fiber cloth;

[0032] b. According to the mass ratio of 100 parts by mass of chromium aluminum phosphate (units can be kilograms, the same below), 0.5 parts by mass of curing agent, 10 parts by mass of composite filler, and 10 parts by mass of water, each raw material component is taken, mixed, and mixed at 100 Stirring at ℃ for 4h, cooling to obtain chromium aluminum phosphate cementitious material;

[0033] c. Coat the surface of the quartz fiber cloth with a protective coating (...

Embodiment 2

[0037] A method for preparing a quartz fiber / chromium aluminum phosphate-based high-temperature wave-transmitting material, comprising the following steps:

[0038] a. Take the quartz fiber cloth and heat it at 800°C for 20 minutes to remove impurities such as wetting agent and wax layer on the surface of the quartz fiber cloth, cool down, and then coat the surface of the quartz fiber cloth (by brushing, spraying, etc., (preferably evenly coated) protective coating to obtain a protective coated quartz fiber cloth;

[0039] b. According to the mass ratio of 100 parts by mass of chromium aluminum phosphate (units can be kilograms, the same below), 5 parts by mass of curing agent, 50 parts by mass of composite filler, and 100 parts by mass of water, each raw material component is taken, mixed, and mixed at 100 Stir at ℃ for 1 hour, cool to prepare chromium-aluminum phosphate cementitious material;

[0040] c. Coat the surface of the quartz fiber cloth with a protective coating (...

Embodiment 3

[0044] A method for preparing a quartz fiber / chromium aluminum phosphate-based high-temperature wave-transmitting material, comprising the following steps:

[0045] a. Take the quartz fiber cloth and heat it at 500°C for 1 hour to remove impurity such as wetting agent and wax layer on the surface of the quartz fiber cloth, cool down, and then coat the surface of the quartz fiber cloth (by brushing, spraying, etc., (preferably evenly coated) protective coating to obtain a protective coated quartz fiber cloth;

[0046] b. According to the mass ratio of 100 parts by mass of chromium aluminum phosphate (units can be kilograms, the same below), 2.7 parts by mass of curing agent, 30 parts by mass of composite filler, and 55 parts by mass of water, each raw material component is taken, mixed, and mixed at 70 Stir at ℃ for 2.5h, and cool to prepare the chromium aluminum phosphate cementitious material;

[0047] c. Coat the surface of the quartz fiber cloth with a protective coating (...

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Abstract

The invention discloses a reparation method of quartz fiber / chrome aluminum phosphate-based high temperature wave-transmitting material, characterized by comprising the following steps of: heating quartz fiber cloth at a temperature of 200-800 DEG C, cooling the quartz fiber cloth, and coating a protection coating on the surface of the quartz fiber cloth; mixing the chrome aluminum phosphate, curing agent, composite stuffing and water to prepare a chrome aluminum phosphate binding material; coating the chrome aluminum phosphate binding material on the surface of the quartz fiber cloth having the protection coating, drying at a temperature of 80-100 DEG C, and flatly laying the quartz fiber cloth; and processing more than two pieces of flatly laid and overlapped high temperature wave-transmitting material monomers by a mould press forming technique to obtain the product, namely, quartz fiber / chrome aluminum phosphate-based high temperature wave-transmitting material. The preparation method of the invention has the advantages of simple technique, good availability of raw materials and convenience for operation; besides, the prepared quartz fiber reinforced chrome aluminum phosphate-based high temperature wave-transmitting material has excellent moisture resistance, heat-resisting stability, mechanical property and dielectric property, so that the material is suitable for the use as a high temperature resistant wave-transmitting material.

Description

technical field [0001] The invention belongs to a high-temperature wave-transmitting material, and relates to a preparation method of a quartz fiber / chromium-aluminum phosphate-based high-temperature wave-transmitting material. The quartz fiber / chromium aluminum phosphate-based high-temperature wave-transmitting material product prepared by the invention is particularly suitable for aerospace radome and civil radome. Background technique [0002] The radome is a kind of equipment to ensure the normal operation of the radar antenna system. The high-temperature wave-transparent material used to manufacture the radome is the basis for high-speed precision navigation spacecraft and one of the key technologies for the development of hypersonic missiles. It directly restricts high Mach Development of several advanced missiles. At present, high-temperature wave-transparent materials are mainly divided into phosphate-based composite materials, ceramic-based composite materials, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/06B32B37/10B32B38/00H01Q1/42
Inventor 霍冀川刘正海王海滨雷永林
Owner SOUTHWEAT UNIV OF SCI & TECH
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