Preparation method for flame-retardant heat-resistant antenna radome base material

A radome and base material technology, which is applied in the field of preparation of flame-retardant and heat-resistant radome base materials, can solve the problems of heavy metal materials, poor thermal shock resistance, and difficult molding and processing, and achieve good compatibility and adhesion Good connection performance and guaranteed strength

Inactive Publication Date: 2015-12-23
苏州凯欧曼新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, metal materials have a large specificity and are not insulating, while ceramic materials are brittle, have poor thermal shock resistance, and are difficult to form and process.

Method used

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  • Preparation method for flame-retardant heat-resistant antenna radome base material
  • Preparation method for flame-retardant heat-resistant antenna radome base material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 A method for preparing a flame-retardant and heat-resistant radome base material, comprising the following steps:

[0025] (1) Disperse 1000g of nano-silica foam in deionized water, then add 100g of dodecylbenzenesulfonic acid, 400g of bismuth nitrate pentahydrate and 600g of methyltrichlorosilane; then hydrothermally react at 120°C for 5 hours; Then filter the reaction solution, wash the filter cake with deionized water, and obtain a filler whose average particle diameter is 180 nanometers after drying;

[0026] (2) Mix 8g DOPO and 100g bisphenol A cyanate monomer, stir at 90°C for 20 minutes, then add 25g phenol compound, continue stirring for 10 minutes; then add 9g 1,3,5-triglycidyl-S-triazinetrione , 28g bisphenol A epoxy resin, continue to stir for 40 minutes; Add 15g diaminodiphenyl ether, stir for 30 minutes at 120 ℃; Obtain resin prepolymer;

[0027] (3) Mix 100g of resin prepolymer with 14g of maleic anhydride and stir at 120°C for 30 minutes; th...

Embodiment 2

[0030] Embodiment 2 A method for preparing a flame-retardant and heat-resistant radome substrate, comprising the following steps:

[0031] (1) Disperse 1000g of nano-silica foam in deionized water, then add 100g of dodecylbenzenesulfonic acid, 400g of bismuth nitrate pentahydrate and 600g of methyltrichlorosilane; then hydrothermally react at 120°C for 5 hours Then filter the reaction solution, wash the filter cake with deionized water, and obtain a filler whose average particle diameter is 180 nanometers after drying;

[0032] (2) Mix 8g DOPO and 100g bisphenol A cyanate monomer, stir at 90°C for 20 minutes, then add 20g phenol compound, continue stirring for 10 minutes; then add 10g 1,3,5-triglycidyl-S-triazinetrione , 25g bisphenol A epoxy resin, continue to stir for 40 minutes; add 10g diaminodiphenyl ether, stir 30 minutes at 120 ℃; Obtain resin prepolymer;

[0033] (3) Mix 100g of resin prepolymer with 12g of maleic anhydride and stir at 120°C for 30 minutes; then add 15g...

Embodiment 3

[0034] Embodiment 3 A method for preparing a flame-retardant and heat-resistant radome base material, comprising the following steps:

[0035] (1) Disperse 1000g of nano-silica foam in deionized water, then add 100g of dodecylbenzenesulfonic acid, 400g of bismuth nitrate pentahydrate and 600g of methyltrichlorosilane; then hydrothermally react at 120°C for 5 hours; Then filter the reaction solution, wash the filter cake with deionized water, and obtain a filler whose average particle diameter is 180 nanometers after drying;

[0036] (2) Mix 8g DOPO and 100g bisphenol A cyanate monomer, stir at 90°C for 20 minutes, then add 30g of phenolic compound, continue stirring for 10 minutes; then add 8g of 1,3,5-triglycidyl-S-triazinetrione , 32g bisphenol A epoxy resin, continue to stir for 40 minutes; add 20g diaminodiphenyl ether, stir 30 minutes at 120 ℃; Obtain resin prepolymer;

[0037] (3) Mix 100g of resin prepolymer with 15g of maleic anhydride and stir at 120°C for 30 minutes...

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Abstract

The invention relates to a preparation method for a flame-retardant heat-resistant antenna radome base material. The preparation method comprises the following steps: preparing a filler with the average grain size of 180 nanometers by taking nano silicon dioxide foam, dodecylbenzene sulfonic acid, bismuth nitrate pentahydrate and methyl trichlorosilane as raw materials; preparing a resin prepolymer by taking DOPO, a bisphenol A cyanate ester monomer, a phenolic compound, 1,3,5-triglycidyl -S-triazinetrione, bisphenol A epoxy resin and diaminodiphenyl ether as raw materials; mixing the resin prepolymer with maleic anhydride; then sequentially adding poly(methylsilsesquioxane) and the filler; then adding isomeric undecanol polyoxyethylene ether phosphate potassium salt and glass beads to obtain a composite system; then injecting the composite system into a die coated with a release agent, carrying out mold pressing under a vacuum condition, and finally turning off a power supply and naturally cooling; and releasing the die to obtain the flame-retardant heat-resistant antenna radome base material. The flame-retardant heat-resistant antenna radome base material has excellent flame retardance and heat resistance, and the development application of the flame-retardant heat-resistant antenna radome base material is satisfied.

Description

technical field [0001] The invention belongs to the technical field of new composite materials, and in particular relates to a method for preparing a flame-retardant and heat-resistant radome base material, and the obtained product can be used in the aerospace field. Background technique [0002] Composite materials are materials with new properties composed of two or more materials with different properties through physical or chemical methods on a macroscopic (microscopic) level. Various materials learn from each other in terms of performance and produce synergistic effects, so that the comprehensive performance of the composite material is better than that of the original constituent materials to meet various requirements. With the continuous development of science and technology, the application of polymer matrix composites is becoming more and more extensive. At the same time, various application fields also put forward higher requirements for different materials. Esp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/04C08L63/00C08L83/04C08K13/06C08K9/04C08K9/06C08K3/36C08K7/20C08K5/1539C08G73/06
CPCC08G73/0644C08K2201/003C08K2201/011C08L79/04C08L2201/02C08L2201/08C08L2205/035C08L63/00C08L83/04C08L71/02C08K13/06C08K9/04C08K9/06C08K3/36C08K7/20C08K5/1539
Inventor 费根华
Owner 苏州凯欧曼新材料科技有限公司
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