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Flame-retardant waterproof coating for building outer walls and production method of coating

A technology for waterproof coatings and building exterior walls. It is applied in the direction of fireproof coatings and coatings. It can solve the problems of poor bonding between calcium carbonate and coatings, difficult processing and use of products, and degradation of coating material properties, so as to improve mechanical properties, Enhanced bonding strength and extended coating life

Inactive Publication Date: 2018-05-08
GUANGXI WUXUAN JINPAI WATERPROOF MATERIAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned patent documents, the fillers therein are all unmodified, and there will be obvious disadvantages when filled in the coating: one is that the surface is hydrophilic and oleophobic, and the dispersibility in the coating is poor; the other is that calcium carbonate is combined with the coating body Poor strength, it can only play a compatibilizing role. When filling with a high proportion of calcium carbonate, the performance of the coating material will drop sharply, so that the product is difficult to be processed and used

Method used

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  • Flame-retardant waterproof coating for building outer walls and production method of coating

Examples

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Comparison scheme
Effect test

Embodiment 1

[0040] First, 40 parts of emulsion (a mixture of A-102 silicone acrylic emulsion and A-99 pure acrylic emulsion, the ratio of the two parts by weight is 1.5:1), 1 part of N-methylol acrylamide, 6 parts of fumed silica, 4 parts of water, 1 part of titanate coupling agent, 6 parts of additives (1 part of cellulose acetate butyrate, 1 part of hydroxyethyl cellulose, 4 parts of 2,2,4-tri Methyl-1,3-pentanediol monoisobutyrate), 7 parts n-butyl acetate, 6 parts flame retardant mixture (2 parts dimethyl methylphosphonate; 4 parts microencapsulated red phosphorus) 5 parts Modified nano-calcium carbonate for material preparation.

[0041] The preparation method of the modified nano-calcium carbonate is as follows: dehydrate and dry the nano-calcium carbonate powder at 115-120°C, then add it to a high-speed mixer, stir and heat up, stop heating at 90°C, and add 2.0% of the mass of nano-calcium carbonate The chelating titanate coupling agent KR-201 was modified at 90°C for 10 minutes; ...

Embodiment 2

[0048] First, 45 parts of emulsion (a mixture of A-102 silicone acrylic emulsion and A-99 pure acrylic emulsion, the ratio of the two parts by weight is 1.5:1), 1.5 parts of N-methylol acrylamide, 7 parts of fumed silica, 5 parts of water, 1.5 parts of titanate coupling agent, 9 parts of additives (2 parts of cellulose acetate butyrate, 2 parts of hydroxyethyl cellulose, 5 parts of 2,2,4-tri Methyl-1,3-pentanediol monoisobutyrate), 8 parts of n-butyl acetate, 8.1 parts of flame retardant mixture (2.7 parts of dimethyl methylphosphonate; 5.4 parts of microencapsulated red phosphorus), 8 parts Parts of modified nano-calcium carbonate are prepared.

[0049] The preparation method of the modified nano-calcium carbonate is as follows: dehydrate and dry the nano-calcium carbonate powder at 115-120°C, then add it to a high-speed mixer, stir and heat up, stop heating at 90°C, and add 2.0% of the mass of nano-calcium carbonate The chelating titanate coupling agent KR-201 was modified ...

Embodiment 3

[0056] First, 50 parts of emulsion (a mixture of A-102 silicone acrylic emulsion and A-99 pure acrylic emulsion, the ratio of the two parts by weight is 1.5:1), 2 parts of N-methylol acrylamide, 9 parts of fumed silica, 6 parts of water, 2 parts of titanate coupling agent, 12 parts of additives (3 parts of cellulose acetate butyrate, 3 parts of hydroxyethyl cellulose, 6 parts of 2,2,4-tri Methyl-1,3-pentanediol monoisobutyrate), 9 parts n-butyl acetate, 9 parts flame retardant mixture (3 parts dimethyl methylphosphonate; 6 parts microencapsulated red phosphorus), 10 parts Parts of modified nano-calcium carbonate are prepared.

[0057]The preparation method of the modified nano-calcium carbonate is as follows: dehydrate and dry the nano-calcium carbonate powder at 115-120°C, then add it to a high-speed mixer, stir and heat up, stop heating at 90°C, and add 2.0% of the mass of nano-calcium carbonate The chelating titanate coupling agent KR-201 was modified at 90°C for 10 minute...

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Abstract

A flame-retardant waterproof coating for building outer walls consists of 40 to 50 parts of emulsion, 1 to 2 parts of N-methylolacrylamide, 6 to 9 parts of fumed silica, 4 to 6 parts of water, 1 to 2parts of titanate coupling agent, 6 to 12 parts of auxiliary agent, 7 to 9 parts of n-butyl acetate, 6 to 9 parts of flame retardant mixture, and 5 to 10 parts of modified nano calcium carbonate, wherein the emulsion is a mixed solution of A-102 silicone-acrylic emulsion and A-99 pure acrylic emulsion with a weight ratio of 1.5:1, the auxiliary agent consists of 1 to 3 parts by weight of levelingagent, 1 to 3 parts by weight of thickening agent and 4 to 6 parts by weight of film forming aid, and the flame retardant mixture is a mixture of dimethyl methylphosphonate and microencapsulated red phosphorus with a weight ratio of 1:2. The coating of the invention has the characteristics of strong chemical resistance, good weather resistance, good flame retardant effect, high gloss, long servicelife of a formed film and the like.

Description

technical field [0001] The invention relates to a method for preparing a coating, in particular to a flame-retardant waterproof coating for building exterior walls and a production method thereof, belonging to the technical field of chemical compositions and their preparation. Background technique [0002] Flame-retardant coatings, also known as fire-resistant coatings, are applied to the surface of flammable substrates to change the combustion characteristics of the material surface and retard the rapid spread of fire; or applied to building components to improve the fire resistance of the components. Flame retardant coatings can prevent burning within a certain period of time, which plays an important role in fire safety. At the same time, due to the frequent occurrence of fires caused by building materials, relevant departments have attached great importance to it. The new "Code for Fire Protection in Building Design" revised by the Fire Department of the Ministry of Publ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/02C09D4/06C09D5/18C09D7/62C09D7/63C09D7/20
CPCC09D4/06C09D5/18
Inventor 刘拥军刘永刚郑新国郑爱彬候尚春
Owner GUANGXI WUXUAN JINPAI WATERPROOF MATERIAL SCI & TECH CO LTD
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