Modified mica titanium pearlescent pigment and preparation thereof, transparent thermal insulation coating and glass

A technology of pearlescent pigments and thermal insulation coatings, applied in the direction of inorganic pigment treatment, reflection/signal coatings, coatings, etc., can solve the problems of glass adhesion and heat insulation effect is not very ideal, dust pollution, etc., to improve the total infrared Effects of blocking rate, reduction of total transmittance, and improvement of infrared blocking rate

Active Publication Date: 2021-08-03
张伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the existing thermal insulation coatings have certain effects, they are not very ideal in terms of glass adhesion and heat insulation effects, and it remains to further enhance the heat insulation effect and increase the adhesion on the glass.
[0003] In addition, some existing heat-insulating coatings need to wash the coating surface with water, and then apply coating treatment after drying. The dust pollution of on-site coating is also relatively large, so this existing problem needs to be changed.

Method used

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  • Modified mica titanium pearlescent pigment and preparation thereof, transparent thermal insulation coating and glass
  • Modified mica titanium pearlescent pigment and preparation thereof, transparent thermal insulation coating and glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of modified mica titanium pearlescent pigment, comprising the steps of:

[0024] 1. Preparation of tin-doped mica titanium pearlescent pigment: in the tin-doped mica titanium pearlescent pigment, the doping amount of tin is 0.5-1.8wt%, the content of titanium dioxide is 8-40wt%, and the balance is fluorine phlogopite sheet, select the appropriate amount of fluorophlogopite sheet, SnCl 4 and TiCl 4 The reaction is carried out, wherein, an appropriate amount of SnO 2 Contributes to TiO 2 into the rutile crystal form. The preparation process is as follows: fluorphlogopite mica flakes and distilled water are made into a suspension, the pH of the suspension is adjusted to 1.5-2.5 (preferably pH is 2), and the mixture is stirred and heated at a temperature of 70-90°C (preferably at a temperature of 85°C). , add SnCl to the suspension at a predetermined rate 4 Aqueous solution, while maintaining the pH of the system at 1.5-2.5 (preferably pH 2), SnCl ...

Embodiment 2

[0039] The preparation method of transparent heat-insulating paint, comprises the steps:

[0040] 1. Turn on low-speed stirring (stirring speed 10-300 rpm, the same below), add 0.2 parts of preservative (Acticide MV, purchased from Thor) to 43.2 parts (1 part = 1kg, the same below) of deionized water, and stir well Finally, add 4 parts of dispersant (anion-modified polyacrylic acid polymer (Dispersogen PEC, purchased from Clariant)) and 4 parts of dispersion medium (Polyglykol G 500, polyethylene glycol, purchased from BASF) and stir well; add 2.5 parts in turn Part nano ATO (antimony doped tin oxide), 0.3 part nano lanthanum hexaboride (LaB 6 ), 3 parts of nano-zinc oxide (ZnO) and 5 parts of nano-silica airgel (SiO 2 ), stir well;

[0041] 2. Use a high-speed disperser to disperse the above solution at a high speed of 1500 rpm for 20-30 minutes;

[0042] 3. Put the material prepared in step 2 into an ultrasonic disperser and disperse ultrasonically for 30-60 minutes. The ...

Embodiment 3

[0048] 1. The difference with step 1 of Example 2 is that the number of parts added to each material is different. In this example, each material is added in the following parts: 30.6 parts of deionized water, 0.2 part of preservative, 5 parts of dispersant, 3 parts of Parts of dispersion medium, 6 parts of nano-state ATO, 0.2 parts of nano-lanthanum hexaboride, 2.0 parts of nano-zinc oxide and 3 parts of nano-silica airgel;

[0049] 2~4: are respectively identical with the step 2~4 of embodiment 2;

[0050] 5. The difference with step 5 of Example 2 is that in this example, 0.2 parts of modified mica titanium pearlescent pigments prepared in Example 1 are added;

[0051] 6. The difference with step 6 of Example 2 is that the number of additions of each material is different. In this example, each material is added according to the following number of parts: 45 parts of aqueous emulsion, 3.6 parts of film-forming aid, 0.15 part of ammonia, 0.2 Part of defoamer, 0.5 part of le...

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Abstract

The invention discloses a modified mica titanium pearlescent pigment and preparation thereof, a transparent thermal insulation coating and glass. The modified mica titanium pearlescent pigment comprises a tin-doped mica titanium pearlescent pigment and rubidium cesium double-ion doped tungsten bronze, and in the tin-doped mica titanium pearlescent pigment, the doping amount of tin is 0.5-1.8 wt%, the content of titanium dioxide is 8-40 wt%, and the balance is fluorophlogopite sheets. The chemical formula of the rubidium cesium double-ion doped tungsten bronze is RbxCsyWO3, x is more than 0 and less than or equal to 0.33, y is more than 0 and less than or equal to 0.33, and the rubidium cesium double-ion doped tungsten bronze coats the outer surface of the tin-doped mica titanium pearlescent pigment. The 940nm and 1400nm infrared ray blocking rates of the modified mica titanium pearlescent pigment are greatly improved, and when the modified mica titanium pearlescent pigment is applied to the transparent thermal insulation coating, the solar total transmittance of the transparent heat insulation coating can be remarkably reduced, and the full infrared blocking rate and the 940nm and 1400nm infrared ray blocking rates are remarkably improved.

Description

technical field [0001] The invention relates to the field of material modification, in particular to a modified mica titanium pearlescent pigment and a preparation method thereof, a transparent heat-insulating coating and glass. Background technique [0002] my country's building energy consumption accounts for 27.8% of the total social energy consumption, more than one-third of which is used for heating and cooling of buildings, 30% to 65% of building energy consumption is lost through roofs and walls, 15% to 25% % is lost through doors and windows, so external wall insulation is one of the main measures for building energy conservation. The doors and windows are generally heat-insulating through transparent heat-insulating coatings. The heat-insulating coating is a functional coating that reflects heat and light, has a short construction period, and has quick results. Thermal insulation coating. However, although the existing thermal insulation coatings have certain effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/00C09C1/40C09C3/06C09D133/04C09D5/33C09D5/36
CPCC09C1/0015C09C3/063C09D133/04C09D5/004C09D5/36C09C2200/401C08K9/10C08K9/02
Inventor 张伟
Owner 张伟
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