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Preparation method of external surface paint of rocket

A technology for outer surfaces and coatings, which is applied in the field of preparation of rocket outer surface coatings, can solve the problems of slow drying, low adhesion, and corrosion resistance of aerospace coatings, and achieve excellent wear resistance and elasticity, good physical and chemical properties, and products strong effect

Inactive Publication Date: 2019-03-15
江苏悠谷未来科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for preparing a rocket outer surface coating, which solves the technical problems of the existing aerospace coatings such as slow drying, low adhesion, high temperature resistance and corrosion resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The first step: weighing according to the ratio of parts by mass: 100 parts of dimethyldiethoxysilane, 10 parts of polyamide, 5 parts of toluene diisocyanate, 2 parts of butanol, 10 parts of diphenolic propane, tri(propylene Acyloxyethyl) isocyanate 10 parts, polyurethane 10 parts, ethyl cellosolve 15 parts, zinc oxide 8 parts, silica sol 5 parts, titanium isopropoxide 15 parts, thermosetting acrylate resin 1.5 parts, calcium chloride 20 parts , 40 parts of modified alkyd resin emulsion, 2 parts of white corundum powder, 1 part of aluminum powder paste, 0.3 part of chromic anhydride.

[0020] Step 2: Put dimethyldiethoxysilane, polyamide, toluene diisocyanate, and butanol into a reaction kettle equipped with a thermometer, a heating device and a stirring device, stir at 30°C for 30 minutes, and the stirring speed is 90r / min , and then raised the temperature to 40°C, added diphenolic propane, tris(acryloyloxyethyl) isocyanate, polyurethane, and ethyl cellosolve, and cont...

Embodiment 2

[0025] The first step: weighing according to the ratio of parts by mass: 100 parts of dimethyldiethoxysilane, 20 parts of polyamide, 25 parts of toluene diisocyanate, 6 parts of butanol, 20 parts of diphenolic propane, tri(propylene Acyloxyethyl) isocyanate 30 parts, polyurethane 20 parts, ethyl cellosolve 35 parts, zinc oxide 16 parts, silica sol 25 parts, titanium isopropoxide 25 parts, thermosetting acrylate resin 5.5 parts, calcium chloride 60 parts , 60 parts of modified alkyd resin emulsion, 6 parts of white corundum powder, 20 parts of aluminum powder paste, 0.7 part of chromic anhydride.

[0026] Step 2: Put dimethyldiethoxysilane, polyamide, toluene diisocyanate and butanol into a reaction kettle equipped with a thermometer, a heating device and a stirring device, and stir at 40°C for 40 minutes at a stirring speed of 100 r / min, then raise the temperature to 50°C, add diphenolic propane, tris(acryloyloxyethyl) isocyanate, polyurethane, and ethyl cellosolve, and conti...

Embodiment 3

[0031] The first step: weighing according to the ratio of parts by mass: 100 parts of dimethyldiethoxysilane, 15 parts of polyamide, 15 parts of toluene diisocyanate, 4 parts of butanol, 15 parts of diphenolic propane, tri(propylene Acyloxyethyl) isocyanate 20 parts, polyurethane 15 parts, ethyl cellosolve 25 parts, zinc oxide 12 parts, silica sol 15 parts, titanium isopropoxide 20 parts, thermosetting acrylate resin 3.5 parts, calcium chloride 40 parts , 50 parts of modified alkyd resin emulsion, 4 parts of white corundum powder, 10 parts of aluminum powder paste, 0.5 part of chromic anhydride.

[0032] Step 2: Put dimethyldiethoxysilane, polyamide, toluene diisocyanate, and butanol into a reaction kettle equipped with a thermometer, a heating device and a stirring device, and stir at 35°C for 35 minutes at a stirring speed of 95 r / min, then raise the temperature to 45°C, add diphenolic propane, tris(acryloyloxyethyl) isocyanate, polyurethane, and ethyl cellosolve, and conti...

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PUM

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Abstract

The invention relates to a preparation method of external surface paint of a rocket. The preparation method comprises the steps of grinding and dispersing the following raw materials: diethoxydimethylsilane, polyamide, toluene diisocynate, butanol, diphenol propane, tri-(acryloyloxyethyl) isocyanate, polyurethane, an ethyl cellosolve solvent, zinc oxide, silicasol, isopropyl titanate, thermosetting acrylate resin, calcium chloride, modified alkyd resin emulsion, white alundum powder, aluminum paste and chromic anhydride. The paint is subjected to surface drying for 4-6h at 25 DEG C and hard drying for 20-24h, and is antistatic; ingredients have a synergistic effect; the paint has excellent wear resistance and elasticity, and good physical and chemical properties, is resistant to a detergent and free from blistering in 5-7d, does not fall and has high elasticity; the paint has level 1 adhesion, and is resistant to 30 DEG C distilled water, rustless and free from blistering in 7-9d, andresistant to 250-450 DEG C high temperature, chemical corrosion and saline; the method is efficient and energy-saving; the ingredients generate the synergistic effect; and the paint has good detergency, resistant to irradiation and sodium hydroxide solution soaking, and free from blistering in 10-14d.

Description

technical field [0001] The invention relates to aerospace coatings, in particular to a preparation method for rocket outer surface coatings. Background technique [0002] Barrier heat insulation coating is a kind of coating that realizes heat insulation and heat preservation through low thermal conductivity and high thermal resistance. The most widely used barrier thermal insulation coating is composite silicate thermal insulation coating. This type of coating was developed in the late 1980s and has different product names, such as composite magnesium aluminum silicate thermal insulation coating, rare earth thermal insulation coating, coating type composite silicate thermal insulation coating, etc. It is an insulating coating made of inorganic and (or) organic binders, insulating aggregates (such as sepiolite, vermiculite, perlite powder, etc.) and air-entraining agents. The performance requirements of this type of coating can be found in GB / T17371-1998 "Silicate Composite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D175/14C09D175/04C09D5/24C09D5/10C09D7/61C09D7/63C09D7/65
CPCC08K2003/0812C08K2003/162C08K2003/2206C08K2003/2296C08L2201/04C08L2201/08C08L2205/02C08L2205/035C09D5/103C09D5/18C09D5/24C09D7/61C09D7/63C09D7/65C09D183/04C08L75/14C08L75/04C08K13/02C08K3/22C08K3/08C08K3/36C08K3/16
Inventor 王勇夏英
Owner 江苏悠谷未来科技有限公司
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