Method for preparing paint used for envelope material

A coating and capsule technology, used in polyamide coatings, epoxy resin coatings, coatings, etc., can solve the problem of inability to meet technical requirements for high-altitude navigation, poor compatibility of aramid fiber substrates, and high and low temperature resistance of coatings. Poor performance and other problems, to achieve the effect of improving interface compatibility, high strength uniformity, high and low temperature resistance and good weather resistance

Inactive Publication Date: 2019-01-11
FOSHAN SENANG BIO TECH CO LTD
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Problems solved by technology

[0006] The technical problem mainly solved by the present invention is that the current self-developed capsule material is mainly composed of aramid fiber, which cannot meet the technical requirements of high-altitude navigation work without coating the protecti

Method used

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  • Method for preparing paint used for envelope material

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Embodiment Construction

[0024] Take 16-20g of 3-aminophenol, 10-12g of ethyl acetoacetate, 17-20g of zinc chloride and 70-80mL of absolute ethanol, put them in a three-necked flask with a stirrer and a reflux tube, and heat under nitrogen protection Raise the temperature to 70-80°C, start the stirrer to keep stirring at a speed of 400-450r / min, condense and reflux for 14-16 hours, and naturally cool to room temperature to obtain the reaction solution; add 60-80mL of 10% Hydrochloric acid, stirred and mixed for 10-15 minutes, filtered to remove the filtrate to obtain a solid product, washed the solid product with distilled water for 3-4 times, placed in an oven, heated to 60-70°C, dried for 8-9 hours, and obtained a dry product. Recrystallize the dried product with 70-75mL of isopropanol to obtain coumarin crystals; take 8-10g of coumarin crystals, 10-12g of 2,3-epoxypropyltrimethylammonium chloride and 40-50mL of mass Put hydrochloric acid with a fraction of 20% in a three-necked flask with a stirrer...

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Abstract

The invention relates to the technical field of paint preparation, and concretely relates to a method for preparing a paint used for an envelope material. The method uses 3-aminophenol and ethyl acetoacetate as raw materials for a reaction to obtain coumarin crystal, and the coumarin crystal is continuously reacted with 2,3-epoxypropyltrimethyl ammonium chloride and acryloyl chloride to obtain ananti-ultraviolet light stabilizer, diethylenetriamine, diethanolamine and toluene sulphonatic acid are mixed to obtain a silicon resin modified PAE emulsion, and the silicon resin modified PAE emulsion, the anti-ultraviolet light stabilizer, bisphenol A epoxy resin and the like are reacted to obtain the paint used for the envelope material. The prepared coumarin can promote the curing cross-linking, and improves the ultraviolet aging resistance of the paint, the silicon resin has high-low temperature resistance and good weather resistance, the interfacial compatibility of the paint and the envelope material can be improved, the PAE emulsion penetrates into the gap of the aramid fiber in the envelope material, so that the dispersion stability of the paint for the envelope material during curing is improved, and the application prospect is wide.

Description

technical field [0001] The invention relates to the technical field of paint preparation, in particular to a method for preparing a paint for capsule materials. Background technique [0002] The high-altitude aerostat is a new type of near-space multifunctional flying platform with propulsion device, controllable flight, and working in the air relying on static lift. The aerostat provides static lift by being filled with gas lighter than air, and can stay in the air in the earth's stratosphere and the airspace below it. It has a wide range of applications in military and civilian fields such as earth observation, missile early warning, communication relay, and aviation tourism. prospect. [0003] As the main structural material of the aerostat, the airship capsule material is usually composed of a load-bearing layer, a barrier layer, and a weather-resistant layer, and the working altitude is about 20km above sea level. The high-altitude working environment of aerostats is ...

Claims

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Application Information

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IPC IPC(8): C09D133/02C09D163/00C09D177/00C09D183/04C09D7/48
CPCC09D133/02C08L2201/08C08L2205/035C09D7/48C08L63/00C08L77/00C08L83/04
Inventor 胡次兵章红英赵金晶
Owner FOSHAN SENANG BIO TECH CO LTD
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