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Heat-resistant coating as well as preparation method and application thereof

A heat-resistant coating, powder technology, applied in the direction of coating, device for coating liquid on surface, pre-treatment surface, etc.

Inactive Publication Date: 2012-10-03
BEIJING HANGTIAN XINFENG MECHANICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of tough heat-resistant coating that can be cured at room temperature and withstand high temperature of 1800°C for more than 100s and its preparation method, so as to solve the problem of thermal protection and construction technology of aircraft in a specific flight environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A heat-resistant coating consisting of room temperature vulcanized silicone rubber, accelerator 109, vermiculite, silsesquioxane, hollow glass microspheres, APP and melamine, the mass ratio of which is 30%: 1%: 7%: 7% : 25%: 20%: 10%, the weighed quality is 60g: 2g: 14g: 14g: 50g: 40g: 20g, the preparation method is:

[0018] The first step is to weigh five kinds of powder materials of vermiculite, silsesquioxane, hollow glass microspheres, APP and melamine with an electronic balance, and their masses are respectively 14g: 14g: 50g: 40g: 20g;

[0019] The second step is to preliminarily mix the five powders and add them to the ball mill to grind them to make them fully mixed. The speed of the ball mill is set to 800r / d, and the ball milling time is 1h;

[0020] The third step is to weigh 60g of room temperature vulcanized silicone rubber with an electronic balance, dissolve it with an appropriate amount of gasoline, and stir evenly;

[0021] The fourth step is to add t...

Embodiment 2

[0026] A heat-resistant coating formula, which is composed of room temperature vulcanized silicone rubber, accelerator 109, vermiculite, silsesquioxane, hollow glass microspheres, APP, and melamine, and its mass ratio is 35%: 1%: 7%: 7 %: 20%: 20%: 10%, the weighed mass is 70g: 2g: 14g: 14g: 40g: 40g: 20g, the preparation method is:

[0027] The first step is to weigh five kinds of powder materials of vermiculite, silsesquioxane, hollow glass microspheres, APP, and melamine with an electronic balance, and their masses are 14g: 14g: 40g: 40g: 20g;

[0028] The second step is to preliminarily mix the five powders and add them to the ball mill to grind them to make them fully mixed. The speed of the ball mill is set to 800r / d, and the ball milling time is 1h;

[0029] The third step is to weigh 70g room temperature vulcanized silicone rubber with an electronic balance, dissolve it with an appropriate amount of gasoline, and stir evenly;

[0030] The fourth step is to add the gro...

Embodiment 3

[0035] A heat-resistant coating formula, which is composed of room temperature vulcanized silicone rubber, accelerator 109, vermiculite, silsesquioxane, hollow glass microspheres, APP, and melamine, and its mass ratio is 40%: 1%: 7%: 7 %: 15%: 20%: 10%, the weighed mass is 80g: 2g: 14g: 14g: 30g: 40g: 20g, the preparation method is:

[0036] The first step is to weigh five kinds of powder materials of vermiculite, silsesquioxane, hollow glass microspheres, APP, and melamine with an electronic balance, and their masses are 14g: 14g: 30g: 40g: 20g;

[0037] The second step is to preliminarily mix the five powders and add them to the ball mill to grind them to make them fully mixed. The speed of the ball mill is set to 800r / d, and the ball milling time is 1h;

[0038] The third step is to weigh 80g room temperature vulcanized silicone rubber with an electronic balance, dissolve it with an appropriate amount of gasoline, and stir evenly;

[0039] The fourth step is to add the gro...

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Abstract

The invention provides a heat-resistant coating as well as a preparation method and application thereof. The heat-resistant coating is used for heat-resistant protection of the surfaces of rockets, guided missiles and other aircrafts and a variety of equipment. The heat-resistant coating consists of the following components in percentage by mass: 30 to 40 percent of room temperature silicon sulfide rubber, 0.7 to 1.5 percent of accelerating agent 109, 7 to 10 percent of vermiculite, 7 to 10 percent of silsesquioxane, 10 to 25 percent of hollow glass beads, 15 to 20 percent of APP (Ammonium Polyphosphate) and 5 to 10 percent of melamine. According to the heat-resistant coating, the silsesquioxane with high silicon content is selected instead of carbon fiber, so that the coating is low in granularity and suitable for pneumatic coating. The coating with the thickness of 2.0mm can resist the high temperature of 1,800 DEG C for 100 seconds, and the heat-resistant requirements of space flight and aviation products can be met.

Description

technical field [0001] The invention relates to a heat-resistant coating and a preparation method thereof, in particular to a room-temperature-curing tough heat-resistant coating and a preparation method thereof. The coating can withstand a high temperature of 1800°C for 100 seconds with a thickness of 2.0 mm, and is used for aircraft such as rockets and missiles. Thermal protection of surfaces and various equipment. Background technique [0002] On pages 68 to 72 of the 6th issue of "Aerospace Technology Materials" in 2008, Ma Hong and Ma Yongqiang published the article "Development of Ablation-Resistant and Heat-Insulating Coatings", which discloses a heat-resistant coating And preparation method thereof, this coating is made up of the barium phenolic resin powder of epoxy-modified silicone resin, low-temperature ablation type filler, high-temperature-resistant filler, reinforcing agent, toughening agent and high carbonation rate, and its mass ratio is: Oxygen / silicone re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D7/12B05D1/38B05D3/02
Inventor 秦蓉蓉牟国辉
Owner BEIJING HANGTIAN XINFENG MECHANICAL EQUIP
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