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A kind of nano-copper sulfide water-based transparent heat-insulating coating and its preparation and application method

A heat-insulating coating, copper sulfide technology, applied in polyester coatings, radiation-absorbing coatings, coatings, etc., can solve the problems of difficult dispersion and modification of nanomaterials, limited infrared light shielding ability, and expensive metal elements. Achieve excellent near-infrared absorption ability, good light and heat stability, and convenient application

Active Publication Date: 2019-08-30
肇庆千江高新材料科技股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nano-functional materials currently used in transparent thermal insulation coatings are mainly metal semiconductor oxides represented by nano-indium oxide doped with tin and nano-tin oxide doped with antimony. This transparent thermal insulation coating can only absorb infrared light with a wavelength greater than 1500nm, and The metal elements required for preparation are expensive
In addition, since oxide semiconductor materials have to go through a high-temperature roasting process in general chemical preparation methods, the resulting particle agglomeration has caused great difficulties in the dispersion and modification of nanomaterials, resulting in low content of nanomaterials in coatings. , limited ability to shield infrared light

Method used

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  • A kind of nano-copper sulfide water-based transparent heat-insulating coating and its preparation and application method
  • A kind of nano-copper sulfide water-based transparent heat-insulating coating and its preparation and application method
  • A kind of nano-copper sulfide water-based transparent heat-insulating coating and its preparation and application method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1. Preparation of water-based nano-copper sulfide slurry, the preparation process includes the following steps:

[0047] a) Add 0.300g of CuCl 2 2H 2 O was dissolved in deionized water (60 mL), and 1.500 g of polyvinylpyrrolidone (K30, PVP) was slowly added under magnetic stirring at room temperature, and stirred for 15 min to form a transparent blue solution. 2.1mL of (NH 4 ) 2 The S solution was quickly injected into the above-mentioned transparent blue solution, and after magnetic stirring for 30 minutes, heated to 70°C and refluxed for 3 hours, and then the system was naturally cooled to room temperature;

[0048] b) After ultrasonically dispersing the PVP modified nano-copper sulfide suspension prepared by the chemical precipitation method for 10 minutes, inject excess acetone into it, seal it with a plastic wrap and let it stand for 6 hours;

[0049] c) During the standing process, the PVP modified nano-copper sulfide obviously settled. Pour the supernatant in...

Embodiment 2

[0057] 1. Preparation of water-based nano-copper sulfide slurry, the preparation process includes the following steps:

[0058] a) Add 0.600g of CuCl 2 2H 2 O was dissolved in deionized water (60 mL), and 3.000 g of polyvinylpyrrolidone (K30, PVP) was slowly added under magnetic stirring at room temperature, and stirred for 15 min to form a transparent blue solution. 4.2mL of (NH 4 ) 2 The S solution was quickly injected into the above-mentioned transparent blue solution, and after magnetic stirring for 30 minutes, heated to 70°C and refluxed for 3 hours, and then the system was naturally cooled to room temperature;

[0059] b) After ultrasonically dispersing the PVP modified nano-copper sulfide suspension prepared by the chemical precipitation method for 10 minutes, inject excess acetone into it, seal it with a plastic wrap and let it stand for 6 hours;

[0060] c) During the standing process, the PVP modified nano-copper sulfide obviously settled. Pour the supernatant in...

Embodiment 3

[0068] 1. Preparation of water-based nano-copper sulfide slurry, the preparation process includes the following steps:

[0069] a) Add 0.600g of CuCl 2 2H 2 O was dissolved in deionized water (60 mL), and 3.000 g of polyvinylpyrrolidone (K30, PVP) was slowly added under magnetic stirring at room temperature, and stirred for 15 min to form a transparent blue solution. 4.2mL of (NH 4 ) 2 The S solution was quickly injected into the above-mentioned transparent blue solution, and after magnetic stirring for 30 minutes, heated to 70°C and refluxed for 3 hours, and then the system was naturally cooled to room temperature;

[0070] b) After ultrasonically dispersing the PVP modified nano-copper sulfide suspension prepared by the precipitation method for 10 minutes, inject excess acetone into it, seal it with a plastic wrap and let it stand for 6 hours;

[0071] c) During the standing process, the PVP modified nano-copper sulfide obviously settled. Pour the supernatant into the wa...

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Abstract

The invention discloses nanometer copper sulfide waterborne transparent heat-insulation coating and methods for preparing and applying the same. The nanometer copper sulfide waterborne transparent heat-insulation coating comprises, by weight, 10-23% of alkyd resin, 20-40% of water-soluble acrylic resin, 5-9% of amino resin, 14-33% of waterborne nanometer copper sulfide slurry, 2-7% of dipropylene glycol mono butyl ether (DPNB), 13-20% of deionized water, 2-7% of ethylene glycol monobutyl ether, 0.1-0.3% of defoaming agents, 0.3-0.5% of leveling agents, 0.2-0.5% of base material wetting agents and 0.1-0.3% of pH (potential of hydrogen) regulators. The nanometer copper sulfide waterborne transparent heat-insulation coating and the methods have the advantages that copper sulfide with excellent water stability and nanometer insertion structures can be prepared from polyvinylpyrrolidone by the aid of simple chemical precipitation processes, and the polyvinylpyrrolidone is used as a surfactant and a modifier; the nanometer copper sulfide waterborne transparent heat-insulation coating can be coated on glass surfaces, and accordingly excellent visible light transmission and infrared shielding heat-insulation effects can be realized.

Description

technical field [0001] The invention relates to a heat-insulating coating, in particular to a nano-copper sulfide water-based transparent heat-insulating coating and a preparation and application method thereof. Background technique [0002] Due to the needs of lighting and aesthetic design, glass windows and glass curtain walls are increasingly used in modern buildings and automobiles. However, ordinary glass (such as float glass) not only has high transparency, but also has high transmittance to near-infrared light that accounts for 50% of solar energy. , The main source of automobile energy consumption. In order to shield near-infrared light without affecting lighting, it is necessary to modify ordinary glass to make it spectrally selective. [0003] At present, the glass with light-selective properties on the market is mainly coated glass and its derived filmed glass and coated glass. Compared with the harsh preparation conditions of coated glass, high technical barrie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D167/08C09D161/20C09D5/32C03C17/00
Inventor 李会宁韩磊张梦阳
Owner 肇庆千江高新材料科技股份公司