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Room temperature curing double-component waterborne polyurethane transparent thermal insulation coating material and preparation method thereof

A water-based polyurethane, room temperature curing technology, applied in the field of coatings, can solve the problems of harsh preparation conditions and complex heat treatment process, and achieve the effect of simple preparation process, excellent transparent heat insulation performance, and smooth film formation

Active Publication Date: 2015-03-25
CHANGSHA XIANGNA TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the defects of harsh preparation conditions and complex heat treatment process, and provide a room temperature curing two-component water-based polyurethane coating with excellent transparent heat insulation effect, high adhesion, high hardness and easy storage. At the same time, the present invention also provides this The preparation method of a kind of coating

Method used

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  • Room temperature curing double-component waterborne polyurethane transparent thermal insulation coating material and preparation method thereof
  • Room temperature curing double-component waterborne polyurethane transparent thermal insulation coating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Weigh 1g of nano-ITO powder and 0.1g of polyethylene glycol-1000 into 50g of deionized water to adjust the pH of the system to 2, ultrasonicate for 10min, and then homogeneously disperse at high speed for 30min to obtain an aqueous ITO slurry. Weigh 100g of water-based polyurethane (PUD-350, Shanghai Sisheng), mix it evenly with water-based ITO slurry, add 0.5g of defoamer K-610, 1g of leveling agent FL-3 and 0.5g of thickener K in sequence -800, high-speed stirring and dispersing for 30 minutes to obtain component A of the coating; weigh 10g of water-based polyisocyanate curing agent and 20g of deionized water and stir evenly to obtain component B of the coating; slowly add component B to component A, Stir for 3-5 minutes until the coating is uniform and the viscosity is 3mPa·s.

Embodiment 2

[0037] Weigh 2g of nano-ITO powder and 0.5g of polyethylene glycol-1200 into 50g of deionized water, adjust the pH of the system to 3, ultrasonically treat for 10min, and disperse homogeneously at high speed for 30min to obtain an aqueous ITO slurry. Weigh 150g of water-based polyurethane (PUD-350, Shanghai Sisheng), mix it evenly with water-based ITO slurry, add 1g of defoamer K-610, 1.5g of leveling agent FL-3 and 0.8g of thickener K in sequence -800, high-speed stirring and dispersing for 30 minutes to obtain component A of the coating; weigh 20g of water-based polyisocyanate curing agent and 30g of deionized water and stir evenly to obtain component B of the coating; slowly add component B to component A, Stir for 3-5 minutes until the coating is uniform and the viscosity is 3mPa·s.

Embodiment 3

[0039] Weigh 4g of nano-ITO powder and 0.8g of polyvinylpyrrolidone into 50g of deionized water, adjust the pH of the system to 4, ultrasonically treat for 15min, and disperse homogeneously at high speed for 30min to obtain an aqueous ITO slurry. Weigh 150g of water-based polyurethane (PUD-350, Shanghai Sisheng), mix it evenly with water-based ITO slurry, add 1.5g of defoamer K-610, 2g of leveling agent FL-3 and 0.8g of thickener K -800, stir and disperse for 30 minutes to obtain component A of the coating; weigh 30g of water-based polyisocyanate curing agent and 30g of deionized water and stir evenly to obtain component B of the coating; slowly add component B to component A, stir 3 to 5 minutes until the coating is uniform and the viscosity is 5mPa·s.

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Abstract

The present invention provides a room temperature curing double-component waterborne polyurethane transparent thermal insulation coating material. According to the coating material, an aqueous ITO slurry and an aqueous polyurethane dispersion as a component A, an aqueous polyisocyanate curing agent as a component B, and nanometer ITO as a transparent thermal insulation material are added with other additives to prepare the room temperature curing double-component waterborne polyurethane transparent thermal insulation coating material, wherein the coating material has characteristics of low cost, simple preparation process, stable product quality, room temperature natural curing without high temperature heat treatment, excellent transparent thermal insulation effect, good adhesion, high hardness, good water resistance, good alkali resistance, no toxicity and environment protection, and can be widely used in automotive glasses and civil building glasses.

Description

technical field [0001] The invention relates to a paint, in particular to a nano-transparent heat-insulating paint with heat-insulation function for glass surfaces and its preparation. Background technique [0002] With the development of society and the improvement of productivity, people's demand for energy is increasing, and various environmental problems caused by a large amount of energy release, such as the greenhouse effect and acid rain, are also increasingly concerned by the whole society. Saving energy, reducing consumption, and improving economic benefits are one of the basic goals of scientific research and technology development, and coating technology is no exception. Therefore, it is of great practical significance to develop thermal insulation coatings, especially building thermal insulation coatings that are closely related to human life. In many countries' energy consumption, building energy consumption accounts for about 30%-40% of national energy consump...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D5/00C09D7/12
Inventor 段学臣肖桂英周志超
Owner CHANGSHA XIANGNA TECH DEV
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