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A kind of thermal insulation nanocomposite coating and preparation method thereof

A nanocomposite and composite coating technology, applied in the field of coatings, can solve the problems of reinforcement, poor machine properties, coating coverage, etc., and achieve the effects of improving mechanical properties, increasing coating coverage, and excellent heat insulation effect

Active Publication Date: 2020-01-21
CHANGCHUN SHUNFENG XINCHENG BUILDING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thermal insulation performance of the heat-insulating nano-composite coating is greatly enhanced, and at the same time, it solves the problems of poor model properties and coating coverage of the coating, and improves the durability, corrosion resistance and strength of the coating.

Method used

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  • A kind of thermal insulation nanocomposite coating and preparation method thereof
  • A kind of thermal insulation nanocomposite coating and preparation method thereof
  • A kind of thermal insulation nanocomposite coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: Waterborne epoxy coating without any filler added.

[0022] Preparation of paint: 1) Take 100 parts of water-based epoxy resin and 100 parts of water,

[0023] 2) Disperse in a ball mill for 4 hours.

[0024] 3) Take 50 parts of water-based curing agent and 100 parts of water to mix evenly; mix the mother liquor of water-based epoxy coating with diluted water-based curing agent in a ratio of 4:1 and apply it on the treated metal substrate to control the thickness 50-200um, cure at room temperature.

Embodiment 2

[0025] Example 2: Waterborne epoxy coating with only cellulose aerogel added.

[0026] (1) Preparation of cellulose aerogel: In a beaker containing 10g of 1.4% cellulose microfiber suspension, adjust the pH to 4 with hydrochloric acid, stir for 2h at a speed of 500rpm and a temperature of 25℃, and freeze-dry the sample , Prepare a cellulose aerogel.

[0027] (2) Preparation of cellulose aerogel coating: take 100 parts of water-based epoxy resin and 100 parts of water, take 30 parts of cellulose aerogel filler, add to the above resin system, and disperse in a ball mill for 4 hours. Take 50 parts of water-based curing agent and 100 parts of water and mix uniformly; mix the mother liquor of the water-based epoxy composite thermal insulation coating with the diluted water-based curing agent in a ratio of 4:1 and apply it on the processed metal substrate, control The thickness is 50-200um, and it can be cured at room temperature.

Embodiment 3

[0028] Example 3: Waterborne epoxy coating with only gadolinium zirconate nanomaterials added.

[0029] (1) Preparation of nanometer gadolinium zirconate coating by co-precipitation method: take 6 parts of gadolinium oxide (Gd 2 0 3 ), 10 parts of zirconium oxychloride (ZrOCl 2 ·8H 2 O), others are analytical grade. ZrOCl 2 .8H 2 0 is dissolved in 25 parts of ammonia water, fully reacted to obtain a white flocculent precipitate, washed 6 times with absolute ethanol and deionized water, and then fully dissolved in 25 parts of HN0 3 , Get ZrO(N0 3 ) 2 Solution. Gd 2 0 3 Dissolve in 5 parts of nitric acid to make Gd(N0 3 ) 3 Solution. The two solutions were mixed to prepare a mother salt solution with a cation concentration of 0.05 mol / L, which was dropped into concentrated ammonia water to obtain a precipitate. After aging for 24 hours, it was filtered, dried in an oven at 60°C, and ground and sieved. Calcined in a muffle furnace at 800℃ for 4-6h to obtain Gd 2 Zr 2 O 7 Nano powde...

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Abstract

The invention relates to the technical field of paint, in particular to heat insulation nano-composite paint and a preparation method thereof. The heat insulation nano-composite paint is prepared fromthe following raw materials in parts by weight: 25 to 50 parts of waterborne curing agents and 50 to 100 parts of waterborne epoxy composite paint mother liquid, wherein the waterborne epoxy composite paint mother liquid is obtained by using zirconate gadolinium nano-powder and cellulose aerogel as fillers and adding mixed liquid of water and waterborne epoxy resin. The heat insulation performance of the heat insulation nano-composite paint is greatly enhanced; meanwhile, the problems of coating covering rate and poor model properties of the paint are solved; the durability, the anticorrosionperformance and the strength of a coating can be improved.

Description

Technical field [0001] The invention relates to the technical field of coatings, in particular to a heat-insulating nano composite coating and a preparation method thereof. Background technique [0002] In most areas of our country, the temperature varies greatly throughout the year, with hot summers and cold winters. However, the insulation performance of the wall of the building is not good. In summer, air-conditioning is commonly used for refrigeration, which causes heat loss and waste of energy. Similarly, air-conditioning and other electrical appliances are used for heating in winter, and the temperature inside the house is easy to lose. Therefore, it is very important to study a coating to have good thermal insulation performance. [0003] The basic composition of general coatings on the market now includes pigments, dyes, solvents and fillers. To obtain other properties of the coating, it is often done by adding fillers to it. But there are many inherent shortcomings tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/08C09D5/00C09D7/61C09D7/65
Inventor 张文强周龙李梅朱东红
Owner CHANGCHUN SHUNFENG XINCHENG BUILDING MATERIAL CO LTD
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