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Additive for thermal insulation paint and preparation method, and water-based paint containing additive

A technology of thermal insulation coatings and additives, applied in the direction of coatings, etc., can solve problems such as poor thermal insulation effect, and achieve the effects of good performance, cost reduction and simple process

Active Publication Date: 2013-04-24
常熟市江南粘合剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem of poor heat insulation effect of the existing building water-based paint, the present invention provides an additive for water-based paint with good heat-insulation effect, a preparation method thereof, and a water-based paint containing the additive.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0019] The present invention also provides a method for preparing an additive for heat-insulating coatings, the method comprising the following steps:

[0020] S1. Preparation of microcapsule vitrified microbeads: the phase change energy storage material is infiltrated into the interior of vitrified microbeads by vacuum infiltration method to form the precursor of microcapsule vitrified microbeads; then the precursor is placed in acrylic acid and the first nanometer dioxide Microcapsule vitrified microbeads can be obtained by immersing in the emulsion formed by silicon;

[0021] S2. Preparation of additives: Add dispersant, modifier, thickener, and defoamer into water to fully disperse, then add microcapsules, vitrified microbeads, stir and mix, and finally add nano-oxides and mix to obtain additives for heat-insulating coatings .

[0022] Preferably, the weight ratio of the waved microbeads, phase change material and emulsifier is 3-6:5-10:5-10. The phase change material an...

Embodiment 1

[0030] 1. Preparation of microcapsule wave microbeads: the vitrified microbeads with a particle size of 15um are used to infiltrate the phase change material into the vitrified microbeads by vacuum impregnation method. Heat emulsification in a mixer at a heating temperature of 60°C, and then add vitrified microbeads with a particle size of 15um according to the weight ratio of phase change energy storage material and corrugated microbeads at a ratio of 5:3, at a vacuum degree of 120KPa After fully stirring under the same conditions, filter and dry at room temperature. Then the above-mentioned vitrified microbeads are added to the emulsifier according to the weight ratio of the emulsifier to the waved microbeads in a ratio of 5:4, and the emulsifier is 20 parts of acrylic acid and 10 parts of nano silicon dioxide The emulsion, the particle size of nano silicon dioxide is 20nm. Finally, stir at 1200 rpm for 2 hours, filter, and dry at 120° C. for 2 hours to obtain the above-men...

Embodiment 2

[0044] 1. Prepare microcapsule vitrified microbeads A2 according to the method of Example 1, the difference is: the particle diameter of the waved microbeads is 20um; the weight ratio of the waved microbeads, phase change energy storage material and emulsifier is 6 : 10:10; the emulsifier is an emulsion of 10 parts of acrylic acid and 5 parts of nano-silica, and the particle size of nano-silica is 10nm.

[0045] 2. Prepare additive sample B2 according to the method of Example 1, the difference is that each substance and its content are as follows

[0046] nano-SiO 2 3%

[0047] Nano-TiO 2 1.5%

[0048] Nano ZnO 2 1%

[0049] Microcapsule Vitrified Beads 40%

[0050] BYK 5040 0.25%

[0051] BYK 5027 0.3%

[0052] KH-550 0.45%

[0053] Thickener 0.15%

[0054] Defoamer 0.20%

[0055] water balance

[0056] 3. Prepare water-based paint C2 according to the method of Example 1, the difference is that the weight ratio of additives to water-based paint is 7:13. ...

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Abstract

The invention provides an additive for a thermal insulation paint, which comprises microcapsule vitrified microbead, nano oxide, dispersant, modifier, thickening agent, defoaming agent and water, wherein the microcapsule vitrified microbead is prepared by filling a phase-change energy storage material in the hollow part of the vitrified microbead and coating a seal film composed of acrylic acid and first nano silicon dioxide on the surface. The invention also provides a preparation method of the additive and a water-based paint containing the additive. The water-based paint containing the additive has the advantages of obvious thermal insulation effect, great difference between the coating surface temperature and space temperature, and favorable thermal insulation effect.

Description

technical field [0001] The invention belongs to the field of heat-insulating materials, and relates to an additive for heat-insulating paint, a preparation method thereof, and a water-based paint containing the additive. Background technique [0002] In the existing thermal insulation coatings, due to the cumbersome production process and the defects of the materials used, there are high thermal conductivity, low thermal reflectivity, environmental protection performance, scrub resistance, stain resistance, aging resistance and weather resistance. Defects such as unsatisfactory performance. Some heat-insulating coatings have disadvantages in fire resistance, which greatly restricts the substrates they can be coated with. The emergence of water-based thermal insulation coatings solves the problems of poor environmental performance, scrub resistance, stain resistance, aging resistance and weather resistance, and solves the thermal insulation effect at the same time. Combined...

Claims

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Application Information

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IPC IPC(8): C09D7/12C09D5/00
Inventor 何顺鸿谢璐聂雷朱俊虹
Owner 常熟市江南粘合剂有限公司
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