Mildewproof dew resisting coating and preparation thereof

An anti-condensation and anti-mildew technology, applied in anti-fouling/underwater coatings, epoxy resin coatings, coatings, etc., can solve the problems of not being effective for a long time, coating water absorption swelling, and high price

Active Publication Date: 2009-01-21
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are a lot of hidden dangers in this method, such as water absorption saturation, water absorption swelling of the coating, ineffectiveness for a long time, high price, e

Method used

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  • Mildewproof dew resisting coating and preparation thereof
  • Mildewproof dew resisting coating and preparation thereof
  • Mildewproof dew resisting coating and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0038] Example 1: The paint was prepared according to the following ratio.

[0039]

[0040] Use this paint to make coatings and perform functional inspections:

[0041] 1. Hygroscopicity: make coating samples with a thickness of 2mm-3mm. After the prepared sample was naturally dried for 24 hours, it was dried in a drying oven at 80°C for 5 hours. Then it was placed in a humidity-conditioning box for a moisture absorption test, and the test conditions were 25°C and 85% relative humidity. After 48h, take it out and weigh it. Through the mass calculation before and after the test, the moisture absorption of the sample is 280g / m. 2 , Indicating that the test coating has a moisture absorption function; put the moisture-absorbing sample in a humidity-conditioning box with a temperature of 25°C and a relative humidity of 35%. After 48 hours, take it out and weigh it. The moisture release capacity of the sample is 220g / m 2 , Indicating that the test coating has the function of releasi...

Example Embodiment

[0044] Example 2: The paint was prepared according to the following ratio.

[0045]

[0046] The function test was performed with the same method as in Example 1. The result: The coating made of the coating was tested in a humidity control cabinet, and the moisture absorption reached 320g / m under the conditions of a temperature of 25°C and a relative humidity of 85%. 2 ; Under the condition of temperature 25℃ and relative humidity 35%, the moisture release amount is 260g / m 2 , Has a good moisture absorption and release function; the inhibition rate of the coating to six kinds of Candida albicans and Aspergillus niger is 0; the inhibition rate to Staphylococcus aureus and Escherichia coli are: 99.9% and 99.9%; the thermal conductivity of the coating measured by the coating thermal conductivity tester is 0.040W / m·K.

Example Embodiment

[0047] Example 3: The paint was prepared according to the following ratio.

[0048]

[0049] The function test was carried out with the same method as in Example 1. The result: the coating made with the paint was tested in a humidity control cabinet, and the moisture absorption reached 330g / m under the conditions of 25℃ and 85% relative humidity. 2 ; Under the condition of temperature 25℃ and relative humidity 35%, the moisture release amount is 259g / m 2 . The antibacterial performance of the coating to Candida albicans and Aspergillus niger six comprehensive molds are all up to level 0, and the antibacterial performance is 98.9% and 99.9% for Staphylococcus aureus and Escherichia coli respectively. The thermal conductivity of the coating measured by the coating thermal conductivity tester is 0.039W / m·K.

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Abstract

The invention provides internal wall paint with functions of mould proofing, moisture prevention and heat-insulating performance, and a preparation method thereof, belonging to the building material field. The paint in every 100 weight portion comprises 1 to 40 weight portions of a moisture absorbing material, 2 to 20 weight portions of a heat insulating material and 0.1 to 5 weight portions of a mould proofing material. The internal wall paint takes porous materials such as portiforium expanded perlite, attapulgite, sepiolite, diatomite, zeolite, etc. as a material with the humidity adjusting function, takes materials with low heat conductivity coefficient such as hollow glass bead, hollow ceramic bead, closed pore expanded perlite and silicon dioxide aerocolloid as a heat insulating material, and takes metal oxide, a nanometer material and zinc pyrithione as organic and inorganic composite mildew proofing materials. The paint has the moisture absorbing quantity more than 180g/m<2>, the moisture releasing quantity more than 140g/m<2>, the mould proofing capability in zero grade, the mold resistance more than 98 percent, and the coefficient of heat conductivity not more than 0.040W/m.K, can be applied to the building surface, and has the functions of mould proofing , moisture prevention and insulating heat besides the function of the internal wall decorative material.

Description

technical field [0001] The invention belongs to the field of building materials and relates to a novel coating material for interior wall decoration. In addition to the basic functions of interior wall paint decoration, the paint also has the functions of effectively preventing and inhibiting mold growth and condensation, and has the function of heat insulation at the same time. Background technique [0002] With its excellent film-forming properties and environmental friendliness, architectural latex coatings have developed rapidly and have a broad market. Now they have developed into the most widely used building materials in architectural decoration materials. Because the coating film of architectural latex coatings is not as dense as solvent-based architectural coatings, it is easily corroded by bacteria and microorganisms and mildew spots appear, which not only affects the appearance of buildings, but also brings harm to human health. In particular, nosocomial infectio...

Claims

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Application Information

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IPC IPC(8): C09D7/12C09D5/14C09D133/04C09D131/04C09D125/14C09D163/00
Inventor 王静王继梅冀志江侯国艳丁楠王晓燕李海建
Owner CHINA BUILDING MATERIALS ACAD
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