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Building powder coating with mildew resistance

A powder coating and construction technology, applied in the field of architectural powder coatings, can solve the problems that the coating is easy to breed bacteria and mold, does not have antibacterial and antifungal properties, and affects people's quality of life, so as to maintain antibacterial and antifungal properties and long-term antibacterial and antifungal properties. , the effect of stabilizing the dielectric constant and dielectric loss

Active Publication Date: 2019-12-17
安徽群升建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In areas with high humidity or continuous rainy weather, the coatings used for walls and roofs are prone to breed bacteria and mold, or the dark corners of the house, especially the kitchen, are prone to breed bacteria and mold, and the mold will spread with the air flow. If the room is full, touching the wall after cleaning will lead to the spread of mold, which will seriously affect people's quality of life and bring certain harm to human health.
[0004] Acrylic resin has excellent weather resistance, chemical resistance, excellent color retention and adhesion, high gloss and durability, and is widely used in surface protection and decoration of architectural coatings, automobiles, home appliances, metal products, etc., but with When used in architectural coatings, acrylic resins are limited in their application due to hot stickiness, cold brittleness, high water absorption and no antibacterial and antifungal properties.

Method used

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  • Building powder coating with mildew resistance
  • Building powder coating with mildew resistance
  • Building powder coating with mildew resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Raw material source:

[0034] 2-(2-Benzothiazole) ethyl acetate: CAS number: 29182-42-1; purchase source: Shanghai Xianding Biotechnology Co., Ltd.;

[0035] Aminoethylaminopropyldimethoxysilane: CAS number: 3069-29-2; purchase source: Bailingwei Technology Co., Ltd.;

[0036] 1,2-Epoxy-9-decene: CAS number: 85721-25-1; purchase source: Shanghai Xianding Biotechnology Co., Ltd.

[0037] The preparation method of mildew-resistant modifier is:

[0038] A1. Add 10mmol 2-(2-benzothiazole)ethyl acetate 2 and 800ml DMF as a solvent into the reaction kettle, start stirring, heat up to 95°C, add 0.2mmol sodium ethoxide, then dropwise add 10.6mmol aminoethylaminopropyl Dimethoxysilane 1 was fed into nitrogen gas at the same time, stirred and reacted for 3 hours, after the reaction was completed, the solvent and the reacted methanol were distilled off under reduced pressure to obtain amide compound 3 with a yield of 95.2%. The reaction formula is as follows:

[0039]

[004...

Embodiment 2

[0046] A kind of architectural powder coating with anti-mold performance, including the following raw materials in parts by weight: 55g modified acrylic resin, 8g polyvinyl acetate emulsion, 6g polyurethane, 20g titanium dioxide, 1g leveling agent polyacrylic acid, 1.5g antioxidant 1010 ;

[0047] The preparation method of this architectural powder coating is:

[0048] S1, preparation of modified acrylic resin

[0049] The modified acrylic resin is formed by free radical solution polymerization of 60g of 2-methyl methacrylate monomer, 30g of polyethylene glycol diacrylate monomer and 10g of anti-mold modifier monomer. Include the following steps:

[0050] The first step, pre-mixing

[0051] Add 2-methyl methacrylate monomer, polyethylene glycol diacrylate monomer and mildew-resistant modifier monomer into the ball mill, grind and mix for 15 minutes, then add 1.5g initiator and 8g medium ethanol, continue Carry out grinding and mixing for 10 minutes to obtain a homogeneous ...

Embodiment 3

[0057] A kind of architectural powder coating with anti-mildew performance, comprises the raw material of following weight part: 62g modified acrylic resin, 4g polyvinyl acetate emulsion, 4g polyurethane, 30g titanium dioxide, 1.5g leveling agent polyacrylic acid, 0.5g antioxidant 1010;

[0058] The preparation method of this architectural powder coating is:

[0059] S1, preparation of modified acrylic resin

[0060] The modified acrylic resin is formed by free radical solution polymerization of 75g of 2-methyl methacrylate monomer, 20g of polyethylene glycol diacrylate monomer and 5g of anti-mold modifier monomer. Include the following steps:

[0061] The first step, pre-mixing

[0062] Add 2-methyl methacrylate monomer, polyethylene glycol diacrylate monomer and anti-mildew modifier monomer into the ball mill, grind and mix for 20 minutes, then add 2g initiator and 10g medium ethanol, and continue Grind and mix for 15 minutes to obtain a uniformly mixed premix;

[0063]...

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Abstract

The invention discloses a building powder coating with mildew resistance. The building powder coating comprises the following raw materials in parts by weight: 55 to 70 parts of modified acrylic resin, 4 to 8 parts of a polyvinyl acetate emulsion, 4 to 8 parts of polyurethane, 15 to 30 parts of titanium dioxide, 1 to 1.5 parts of a leveling agent and 0.5 to 1.5 parts of an antioxidant. According to the invention, the modified acrylic resin is used as a matrix and is cooperated with other components, and melt extrusion, crushing, grinding and sieving are successively carried out so as to prepare the building powder coating. The modified acrylic resin is formed by subjecting the monomer 2-methyl methacrylate, polyethylene glycol diacrylate and a mildew-proof modifier to free radical solutionpolymerization; the mildew-proof modifier is firmly embedded into the acrylic resin in the form of chemical bonds; and when the mildew-proof modifier is applied to the building coating, the water resistance and antibacterial and mildew-proof properties of the building coating can be maintained for a long time, and a healthy living environment is provided for people.

Description

technical field [0001] The invention belongs to the technical field of architectural coatings, in particular to an architectural powder coating with anti-mildew performance. Background technique [0002] Coating refers to a general term for a class of materials that can form a tough protective film when applied to the surface of an object. Generally, the coatings used for interior walls, exterior walls, ceilings and floors of buildings are called architectural coatings. Architectural coatings are an important category within coatings. According to the part where the paint is used, it is divided into wall paint, floor paint, roof paint, wood paint, and metal antirust paint. [0003] In areas with high humidity or continuous rainy weather, the coatings used for walls and roofs are prone to breed bacteria and mold, or the dark corners of the house, especially the kitchen, are prone to breed bacteria and mold, and the mold will spread with the air flow. If the room is full, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/12C09D131/04C09D175/04C09D5/03C09D5/14C08F220/14C08F230/08C08F222/20
CPCC08F220/14C08K2003/2241C08L2205/035C09D5/033C09D5/14C09D143/04C08L31/04C08L75/04C08L33/02C08K3/22
Inventor 代群鲁荣范红代琴
Owner 安徽群升建筑工程有限公司
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