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A kind of acid rain-resistant reflective heat-insulating black grid paint and preparation method thereof

An acid rain-resistant, gridded technology, applied in reflective/signal paints, latex paints, coatings, etc., can solve problems such as increased material loss and labor costs, increased cooling energy consumption, paint film damage, etc., and achieves good near-infrared reflection. performance, saving construction costs, and not easy to chalk and fade

Active Publication Date: 2021-10-22
GUANGDONG MAYDOS BUILDING MATERIALS LTD CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fall of acid rain will cause corrosion to the wall of the building, resulting in the loss of the decoration and protection function of the exterior wall of the building.
[0003] In addition, when the sun shines on the outer wall of the building, the temperature of the wall will rise, resulting in a high temperature indoor, and the energy consumption of indoor cooling will also increase with the increase of temperature.
At present, the use of sand wall-like coatings on the exterior walls of buildings is increasing. The construction process often requires black grid paint as the substrate protection and plays a decorative role together with the top coat. However, ordinary black grid paint is very easy to absorb sunlight. Moreover, its construction process needs to paste textured paper on the black textured paint to create a textured effect. Because the bonding strength of ordinary black textured paint to the textured paper is greater than its bonding strength to the substrate, it is difficult to remove the textured paper. During the operation, the paint film is easily damaged by the masking paper, resulting in the secondary construction of the product, which increases the loss of materials and labor costs

Method used

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  • A kind of acid rain-resistant reflective heat-insulating black grid paint and preparation method thereof
  • A kind of acid rain-resistant reflective heat-insulating black grid paint and preparation method thereof
  • A kind of acid rain-resistant reflective heat-insulating black grid paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of acid rain-resistant reflective heat-insulating black grid paint is a thin-coated latex paint, which is prepared by the following method:

[0033] Step 1: Weigh 21.8 parts of water, and put in antifreeze ethylene glycol: 0.5 parts, rheology additive 250HHBR: 0.15 parts, and pH regulator at a speed of 400-800 rpm BS 168: 0.25 parts, dispersant Orotan TM 731: 0.5 part, wetting agent ECOSURF TM LF-45: 0.1 part, defoamer ST 2410: 0.4 parts, dispersed for 5 minutes;

[0034] Step 2: Add barium sulfate: 20.0 parts, mica powder: 5 parts in turn at the speed of 800-1000 rpm, disperse for 15-25 minutes, and detect the fineness ≤ 60 microns; at 400-600 rpm Under the rotating speed, put in reflective and heat-insulating black pigment IR-801: 8.0 parts, disperse for 5 minutes and then put in synthetic resin emulsion CN18: 35.0 parts, dispersed for 5 minutes;

[0035] Step 3: Add preservatives in sequence at a speed of 300-500 rpm MV: 0.3 parts, antifungal agent ...

Embodiment 2

[0038] A kind of acid-rain-resistant reflective heat-insulating black grid paint is a glossy thick-coated latex paint, which is prepared by the following method:

[0039] Step 1: Weigh 14.65 parts of water, and add antifreeze propylene glycol: 0.5 parts, rheology additive EBS 481 FQ: 0.1 parts, pH regulator AMP 95: 0.15 parts, and disperse at a speed of 400 to 800 rpm. Agent Alcosperse747: 0.8 parts, wetting agent ECOSURF TM BD-405: 0.1 part, defoamer Dispelair CF 246: 0.5 part, disperse for 5 minutes;

[0040] Step 2: Add barium sulfate: 15.0 parts, mica powder: 2.5 parts, talcum powder: 2.5 parts in sequence at a speed of 800-1000 rpm, and disperse for 15-25 minutes, and the detection fineness is ≤ 60 microns; at 400 At ~600 rpm, put in reflective heat-insulating black pigment V-760: 10.0 parts, disperse for 5 minutes, then put in synthetic resin emulsion Primal TX-100: 20.0 parts, disperse for 5 minutes;

[0041] Step 3: Add the preservative PROXEL in sequence at a speed...

Embodiment 3

[0044] The acid-rain-resistant reflective heat-insulating black grid paint described in embodiment 3 is thick-coated latex paint on the rough surface, and is prepared by the following method:

[0045] Step 1: Weigh 14.2 parts of water, and put in antifreeze propylene glycol: 1.0 part, rheology additive HEC: 0.2 part, pH regulator ammonia water: 0.1 part, and dispersant at a speed of 400-800 rpm. CX 4320: 1.0 part, wetting agent Hydropalat WE 3475: 0.1 part, defoamer DF691: 0.4 part, disperse for 5 minutes;

[0046] Step 2: Add barium sulfate: 5.0 parts, mica powder: 5.0 parts sequentially at the speed of 800-1000 rpm, disperse for 15-25 minutes, and detect the fineness ≤ 60 microns; at 400-600 rpm Under the rotating speed, reflective and heat-insulating black pigment XFast 0095: 5.0 parts, disperse for 5 minutes, then add synthetic resin emulsion Carboset CA-600: 15.0 parts, disperse for 5 minutes;

[0047] The third step: at the speed of 300-500 rpm, put in the preservative...

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Abstract

The invention discloses an acid rain-resistant reflective and heat-insulating black partitioned paint and a preparation method thereof. The black compartmentalized paint obtained by the formulation and preparation method of the present invention has acid rain corrosion resistance, is not easy to be pulverized and faded, and has good near-infrared reflectivity, which can effectively reduce the temperature of the wall caused by sunlight compared with ordinary black compartmentalized paint And good weather resistance; no need for construction putty and good anti-masking paper adhesion, which can save construction costs.

Description

technical field [0001] The invention belongs to the field of architectural coatings, and in particular relates to an acid rain-resistant reflective heat-insulating black gridded paint suitable for the protection and decoration of exterior wall substrates of concrete buildings and a preparation method thereof. Background technique [0002] Acid rain is rain, snow or other forms of precipitation with a pH less than 5.6. In the process of forming and falling, rain and snow absorb and dissolve sulfur dioxide, nitrogen oxides and other substances in the air, forming acidic precipitation with a pH value less than 5.6. Acid rain is mainly caused by man-made discharge of a large amount of acidic substances into the atmosphere. The acid rain in China is mainly caused by the burning of coal with high sulfur content, mostly sulfuric acid rain and less nitric acid rain. In addition, the tail gas emitted by motor vehicles is also an important cause of acid rain. With the rapid developm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D201/00C09D5/08C09D5/33C09D5/02
Inventor 梁振霖李君荣李淑燕周伟建余燕然陈伟雄郑茂财李永优贺元进李阳辉罗观德李自飞李光强
Owner GUANGDONG MAYDOS BUILDING MATERIALS LTD CO
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