Environment-friendly high-strength elastic coating for interior walls and preparation method thereof

An elastic coating, high-strength technology, applied in the direction of coating, etc., can solve the problems of affecting the integrity of the interior wall coating film, the adhesion cannot meet the demand, and the coating elasticity is reduced, so as to improve the ability of self-cleaning and hydrophobicity, excellent adhesion Concentration, the effect of improving adhesion

Pending Publication Date: 2021-05-14
陈晓坤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the coatings on the interior walls of ordinary buildings are generally rigid coatings, but because the internal structures of buildings such as concrete and bricks will expand and contract due to climate change, and the degree of thermal expansion and contraction of various walls Differences will produce internal stress. When the internal stress acts on the wall surface, it will affect the integrity of the interior wall coating film, resulting in cracking, blistering, and even flakes off. The elastic exterior wall coating will follow the wall. Thermal expansion and contraction and def

Method used

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  • Environment-friendly high-strength elastic coating for interior walls and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An environment-friendly high-strength elastic paint for interior walls, its raw materials include: 50kg of high-elastic acrylic emulsion, 5kg of pure acrylic emulsion, 2kg of sodium hexametaphosphate, 2kg of lauryl alcohol ester, 1kg of heavy calcium carbonate, 1kg of cellulose ether, Multifunctional auxiliary agent 1kg, 2,2'-dithiobis(N-methylbenzamide) 1kg, polydimethylsiloxane 1kg, TT-935 thickener 1kg, fatty acid polyoxyethylene ester 1kg, poly Siloxane 1kg, ethylene glycol 1kg, water 50kg.

[0026] In the multifunctional auxiliary agent, mix 2kg ethyl orthosilicate, 1kg methyl orthosilicate, and 30kg ethanol evenly, add 1kg of ammonia water with a concentration of 15wt% and stir for 2 hours to obtain SiO 2 Sol;

[0027] Add 30kg of formamide to the reactor, add 15kg of ethyl crotonate, 1kg of lauryl methacrylate, and 1kg of diethylenetriamine under stirring, stir at 60°C for 1 hour, remove excess methanol by rotary evaporation, and continue stirring 1h, add 1kg d...

Embodiment 2

[0033] An environment-friendly high-strength elastic paint for interior walls, its raw materials include: 100kg of high-elastic acrylic emulsion, 20kg of pure acrylic emulsion, 5kg of sodium hexametaphosphate, 8kg of lauryl alcohol ester, 5kg of heavy calcium carbonate, 4kg of cellulose ether, Multifunctional additive 2kg, 2,2'-dithiobis(N-methylbenzamide) 2kg, polydimethylsiloxane 2kg, TT-935 thickener 2kg, polyoxyethylene alkylamide 2kg, Polysiloxane 2kg, ethylene glycol 2kg, water 100kg.

[0034] In the multifunctional auxiliary agent, mix 8kg ethyl orthosilicate, 5kg methyl orthosilicate, and 60kg ethanol evenly, add 3kg of ammonia water with a concentration of 25wt% and stir for 4 hours to obtain SiO 2 Sol;

[0035] Add 60kg of formamide to the reactor, add 30kg of ethyl crotonate, 5kg of lauryl methacrylate, and 2kg of diethylenetriamine under stirring, stir for 2 hours at a temperature of 80°C, remove excess methanol by rotary evaporation, and continue stirring 2h, ad...

Embodiment 3

[0041] An environment-friendly high-strength elastic paint for interior walls, its raw materials include: 60kg of high-elastic acrylic emulsion, 10kg of pure acrylic emulsion, 3kg of sodium hexametaphosphate, 3kg of propylene glycol ether, 2kg of heavy calcium carbonate, 2kg of cellulose ether, multi-functional Additives 1.2kg, tetramethylthiuram disulfide 1.2kg, polymethylalkylsiloxane 1.2kg, hydroxyethyl cellulose 1.2kg, polyoxyethylene alkylamide 1.2kg, polydimethylsiloxane Alkanes 1.2kg, ethylene glycol 1.2kg, water 60kg.

[0042] In the multifunctional auxiliary agent, mix 3kg ethyl orthosilicate, 2kg methyl orthosilicate, and 40kg ethanol evenly, add 1.5kg of ammonia water with a concentration of 18wt% and stir for 2.5h to obtain SiO 2 Sol;

[0043] Add 35kg of formamide to the reactor, add 18kg of ethyl crotonate, 2kg of lauryl methacrylate, and 1.2kg of diethylenetriamine under stirring, stir at 65°C for 1.5h, and remove excess methanol by rotary evaporation. Continu...

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Abstract

The invention discloses an environment-friendly high-strength elastic coating for interior walls and a preparation method thereof, and the coating comprises the following raw materials in parts by weight: 50-100 parts of high-elastic acrylic emulsion, 5-20 parts of pure acrylic emulsion, 2-5 parts of sodium hexametaphosphate, 2-8 parts of a coalescing agent, 1-5 parts of ground calcium carbonate, 1-4 parts of cellulose ether, 1-2 parts of a multifunctional additive, 1-2 parts of a mildew preventive, 1-2 parts of a flatting agent, 1-2 parts of a thickening agent, 1-2 parts of a dispersing agent, 1-2 parts of a defoaming agent, 1-2 parts of an anti-freezing agent and 50-100 parts of water. After the coating is completely cured, the coating has enough strength to resist destructive power generated by the outside to the coating, the mechanical property is excellent, the adhesive force of the coating can be improved, the self-cleaning and hydrophobic capacity of the coating can be improved, the stability of the coating can be improved, meanwhile, the elasticity is excellent, the self-healing performance is achieved, and the good application prospect and economic benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of elastic coatings, in particular to an environment-friendly high-strength elastic coating for interior walls and a preparation method thereof. Background technique [0002] In recent years, with the development of the economy, people have higher and higher requirements for building interior wall coatings, and the demand for low-cost and environmentally friendly interior wall coatings in the construction market is increasing. At present, harmful substances in interior wall coatings have been harassing Living and environmental protection has become the focus of attention and the goal pursued by people. Interior wall paint is an important part of building decoration materials. There are many manufacturers and many brands of products, but most of them still have the problem that the harmful substances in the coating greatly exceed the national limit standards. [0003] At present, the coatings on the interior...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D7/61C09D7/65
CPCC08K2003/2296C08L2201/08C08L2205/025C09D133/04C09D7/61C09D7/65C08L33/04C08L33/06C08K3/22C08K3/36
Inventor 陈晓坤
Owner 陈晓坤
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