High temperature-resistant flame-retardant insulating paint and preparation thereof

A heat-insulating coating and high-temperature-resistant technology, applied in the field of materials, can solve problems such as low adhesion, reduced heat insulation efficiency, and low temperature resistance

Active Publication Date: 2008-11-12
ZHONGCAI HIGH NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For aircraft heat insulation coatings, it must have the characteristics of low density, high temperature resistance, flame retardancy, high adhesion and high heat insulation efficiency, while the existing Although the single performance index of thermal insulation coatings has reached a relatively high level, it is still difficult to meet the stringent requirements of aviation and aerospace fields with comprehensive indicators such as temperature resistance, flame retardancy, heat insulation, adhesion, and density.
The main problems are: thermal insulation coatings with organic resins as binders have good designability and high thermal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The high-temperature-resistant flame-retardant and heat-insulating coating of the present invention consists of ingredients by weight percentage: 69% of epoxy-modified silicone resin binder, 15% of hollow microsphere heat-insulating filler, 15% of composite flame retardant, and 1% of auxiliary agent.

[0025] in:

[0026] The insulating filler of hollow microspheres is SiO 2 Hollow microspheres, particle size range 10-100μm.

[0027] Composite flame retardant weight composition: Mg(OH) 2 :Al(OH) 3 = 3:1.

[0028] The weight ratio of polyacrylic acid dispersant and diethyl titanate coupling agent is 1:1.

[0029] The speed of high-speed ball milling is 200r / min, and the speed of low-speed stirring is 80r / min.

[0030] The coating is prepared on the tinplate by spraying or brushing. After the coating is cured, the heat insulation performance is tested by the flat plate static heating method. The thickness is 1mm. 0.31g / cm 3 , oxygen index 41, adhesion 4.1Mpa.

Embodiment 2

[0032] The high-temperature-resistant flame-retardant and heat-insulating coating of the present invention consists of ingredients by weight percentage: 67% of epoxy-modified organic silicon resin binder, 20% of hollow microsphere heat-insulating filler, 10% of composite flame retardant, and 3% of auxiliary agent.

[0033] in:

[0034] The insulating filler of hollow microspheres is SiO 2 Hollow microspheres, particle size range 40-100μm.

[0035] Composite flame retardant weight composition: Mg(OH) 2 :Al(OH) 3 =1:1.

[0036] The weight ratio of polymethacrylic acid dispersant to isopropyl trititanate isoester coupling agent is 2:1.

[0037] The speed of high-speed ball milling is 160r / min, and the speed of low-speed stirring is 60r / min.

[0038] Prepare the coating on the tinplate by spraying or brushing. After the coating is cured, use the flat static heating method to test the heat insulation performance. The thickness is 1mm. 0.30g / cm 3 , oxygen index 39, adhesion 4...

Embodiment 3

[0040] The high-temperature-resistant flame-retardant and heat-insulating coating of the present invention consists of ingredients by weight percentage: 70% of epoxy-modified silicone resin binder, 15% of hollow microsphere heat-insulating filler, 12% of composite flame retardant, and 3% of auxiliary agent.

[0041] in:

[0042] The insulating filler of hollow microspheres is SiO 2 Hollow microspheres, particle size range 10-40μm.

[0043] Composite flame retardant weight composition: Mg(OH) 2 :Al(OH) 3 =1:3.

[0044] The weight ratio of oleic acid amide dispersant to isopropyl trititanate coupling agent is 3:1.

[0045] The speed of high-speed ball milling is 250r / min, and the speed of low-speed stirring is 70r / min.

[0046] Prepare the coating on the tinplate by spraying or brushing. After the coating is cured, use the flat static heating method to test the heat insulation performance. The thickness is 1mm. 0.31g / cm 3 , oxygen index 40, adhesion 4.3Mpa.

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Abstract

The invention relates to high-temperature resistant flame-retarding insulating coating and a method for preparing the same, which belong to the material technical field and are used for heat insulation in an aircraft. The compositions by weight percentage of the compositions of the high-temperature resistant flame-retarding insulating coating are: 60 to 70 percent of organic silicone resins, 15 to 20 percent of hollow microballoon filling insulant, 10 to 15 percent of composite fire retardant and 1 to 3 percent of auxiliary agent. The high-temperature resistant flame-retarding insulating coating has low density, high adhesion, good fire resistance and high heat insulation efficiency. The preparation method is to prepare the product with a mesopore structure through addition of the composite fire retardant, coupling agent and the auxiliary agent into the organic silicone resins, uniform mixture of the compositions through high-speed ball milling, addition of the hollow microballoon filling insulant, and low-speed stirring and uniform dispersion.

Description

technical field [0001] The invention relates to a high-temperature-resistant, flame-retardant and heat-insulating coating and a preparation method thereof, belonging to the technical field of materials, and used for heat-insulating protection in aviation vehicles. Background technique [0002] For heat insulation coatings for aircraft, they must have the characteristics of low density, high temperature resistance, flame retardancy, high adhesion and high heat insulation efficiency. , but comprehensive indicators such as temperature resistance, flame retardancy, heat insulation, adhesion, and density are still difficult to meet the stringent requirements in the aviation and aerospace fields. The main problems are: thermal insulation coatings with organic resins as binders have good designability and high thermal insulation efficiency, but generally have low temperature resistance, lower than 200 ° C, poor or no flame retardancy This is fatal to the aircraft, because the heat...

Claims

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Application Information

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IPC IPC(8): C09D183/00C09D5/18C09D7/12
Inventor 赵小玻魏美玲王重海隋学叶刘瑞祥侯立红栾艺娜尚超峰于海杰
Owner ZHONGCAI HIGH NEW MATERIAL
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