阅读说明：本技术 一种环保水性漆及其制备方法 (Environment-friendly water-based paint and preparation method thereof ) 是由 肖维刚 于 2019-01-22 设计创作，主要内容包括：本发明公开了一种环保水性漆及其制备方法,由以下重量份的原料组成：去离子水15-20份；水性丙烯酸树脂40-55份；减水剂5-9份；成膜剂4-9份；防腐剂5-9份；抗冻剂7-13份；消泡剂8-14份；分散剂4-9份；表面增强剂5-10份；抗晒剂3-7份。本发明通过在水和水性丙烯酸树脂混合形成的树脂乳液中添加减水剂在减少水用量的同时,增加混合效果,添加消泡剂避免了成型后的漆料中存在气泡,保证了施工质量,添加抗冻剂、抗晒剂保证了漆料在低温和阳光照射下的正常使用,添加表面增强剂使漆料定型后表面强度更高,耐磨损性更好,并添加分散剂和成膜剂,促进各种添加剂混合并形成光亮膜层,使得到的漆料成品综合性能更好,应用层面更广。(The invention discloses an environment-friendly water-based paint and a preparation method thereof, wherein the paint is prepared from the following raw materials in parts by weight: 15-20 parts of deionized water; 40-55 parts of water-based acrylic resin; 5-9 parts of a water reducing agent; 4-9 parts of a film forming agent; 5-9 parts of a preservative; 7-13 parts of an antifreeze agent; 8-14 parts of a defoaming agent; 4-9 parts of a dispersing agent; 5-10 parts of a surface reinforcing agent; 3-7 parts of an anti-solarization agent. According to the invention, the water reducing agent is added into the resin emulsion formed by mixing water and the water-based acrylic resin, so that the water consumption is reduced, the mixing effect is increased, the defoaming agent is added, the bubbles in the formed paint are avoided, the construction quality is ensured, the antifreezing agent and the sun-resistant agent are added, the normal use of the paint under low temperature and sunlight irradiation is ensured, the surface reinforcing agent is added, so that the paint has higher surface strength and better wear resistance after being shaped, and the dispersing agent and the film forming agent are added, so that the mixing of various additives is promoted and a bright film layer is formed, so that the obtained paint finished product has better comprehensive performance and a wider application layer.)

1. The environment-friendly water-based paint is characterized by comprising the following raw materials in parts by weight:

2. the environment-friendly water-based paint as claimed in claim 1, wherein the water reducing agent is sulfonated lignin.

3. The environment-friendly water-based paint according to claim 1, wherein the film-forming agent is one or more of alcohol ester twelve, propylene glycol ethyl ether and propylene glycol butyl ether.

4. The environment-friendly water-based paint as claimed in claim 1, wherein the antifreeze is one or more of ethylene glycol and propylene glycol.

5. The environment-friendly water-based paint as claimed in claim 1, wherein the preservative is fine mineral powder.

6. The environmentally friendly water-based paint according to claim 1, wherein the defoaming agent is formed by mixing polyoxyethylene polyoxypropylene pentaerythritol ether and polyoxypropylene polyoxyethylene glycerol ether, and the ratio of the polyoxyethylene polyoxypropylene pentaerythritol ether to the polyoxypropylene polyoxyethylene glycerol ether is 1: 1.

7. The environment-friendly water-based paint according to claim 1, wherein the surface reinforcing agent is alkali metal silicate.

8. The environment-friendly water-based paint as claimed in claim 1, wherein the sunscreen agent is nano titanium dioxide.

9. The environmentally friendly water-based paint according to claim 1, wherein the dispersant is one or more of triethylhexylphosphoric acid, sodium dodecyl sulfate, methylpentanol and cellulose derivatives.

10. The environment-friendly water-based paint according to claim 1, which is characterized by comprising the following raw materials in parts by weight: 17-20 parts of deionized water; 45-55 parts of water-based acrylic resin; 7-9 parts of a water reducing agent; 6-9 parts of a film forming agent; 6-9 parts of a preservative; 9-13 parts of an anti-freezing agent; 10-14 parts of a defoaming agent; 6-9 parts of a dispersing agent; 7-10 parts of a surface reinforcing agent; 4-7 parts of an anti-solarization agent.

11. The environment-friendly water-based paint according to claim 1, which is characterized by comprising the following raw materials in parts by weight: 18-20 parts of deionized water; 50-55 parts of water-based acrylic resin; 8-9 parts of a water reducing agent; 7-9 parts of a film forming agent; 7-9 parts of a preservative; 11-13 parts of an anti-freezing agent; 12-14 parts of a defoaming agent; 8-9 parts of a dispersing agent; 8-10 parts of a surface reinforcing agent; 5-7 parts of an anti-solarization agent.

12. The environment-friendly water-based paint according to claim 1, which is characterized by comprising the following raw materials in parts by weight: 19-20 parts of deionized water; 53-55 parts of water-based acrylic resin; 8-9 parts of a water reducing agent; 8-9 parts of a film forming agent; 8-9 parts of a preservative; 12-13 parts of an antifreeze agent; 13-14 parts of a defoaming agent; 8-9 parts of a dispersing agent; 9-10 parts of a surface reinforcing agent; 6-7 parts of an anti-solarization agent.

13. The preparation method of the environment-friendly water-based paint as claimed in claim 1, characterized by comprising the following steps:

1) putting the preservative and the surface reinforcing agent into a ball mill with the rotating speed of 120-260r/min according to the adaptive proportion, grinding for 2-5min, and pouring out for later use;

2) dividing deionized water into two parts, wherein the ratio of the two parts is 7:3, putting the first part of deionized water, the water-based acrylic resin and the dispersing agent into a stirrer, adjusting the temperature to 60-80 ℃, adjusting the stirring speed of the stirrer to 1000-1500r/min for stirring for 5-9min, and standing to normal temperature to obtain a resin emulsion;

3) adding a second part of deionized water, a water reducing agent, a preservative, an antifreeze, a defoaming agent and an anti-solarization agent into a reaction kettle at the temperature of 40-50 ℃ according to a proper proportion, fully reacting and uniformly mixing the preservative, the antifreeze and the defoaming agent, adjusting the temperature of the reaction kettle to 25-40 ℃, and stirring for 3-7min by using a stirrer at the speed of 300-900r/min to obtain an additive solution;

4) pouring the resin emulsion into a constant temperature reaction kettle with the temperature of 40 ℃, stirring for 2-7min at the speed of 700r/min by using a stirrer, slowly pouring the additive solution in the step 3) into the constant temperature reaction kettle, stirring for 4-7min at the speed of 900r/min by using the stirrer, pouring the film forming agent, continuously stirring for 5-7min, and standing to obtain a finished product.

Technical Field

The invention relates to the technical field of paint vehicles, in particular to an environment-friendly water-based paint and a preparation method thereof.

Background

Along with the development of economy, people have higher and higher requirements on the quality level of life and home decoration in life, and the decoration materials are required to bring visual aesthetic feeling and comfort, and meanwhile, the decoration materials are required to be low in cost, environment-friendly, safe, non-irritant and durable. Paint is one of common decorative materials, and the wide use of the paint improves the quality of life of people.

The water paint is a paint which takes water as a diluent and does not contain organic solvent, has the characteristics of no benzene, toluene, xylene, formaldehyde and free TDI toxic heavy metal, no toxicity, no pungent smell, no harm to human bodies, no environmental pollution, plump paint film, glittering and translucent property, good flexibility, water resistance, wear resistance, aging resistance, yellowing resistance, quick drying, convenient use and the like. Can be used in: wood, metal, plastic, glass, building surface and other materials. The paint can fundamentally solve the problem that the traditional solvent-based paint is harmful to human bodies and the environment, and compared with the solvent-based paint, the water-based paint has great superiority in the aspects of energy conservation and environmental protection, but the traditional water-based paint generally has poor comprehensive performance and can not be normally used in the environment facing low temperature and high light.

Therefore, an environment-friendly water-based paint and a preparation method thereof are provided.

Disclosure of Invention

The invention aims to solve the problems in the background art and provides an environment-friendly water-based paint and a preparation method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme: the environment-friendly water-based paint is prepared from the following raw materials in parts by weight:

preferably, the water reducing agent adopts sulfonated lignin.

Preferably, the film forming agent is one or more of alcohol ester twelve, propylene glycol ethyl ether and propylene glycol butyl ether.

Preferably, the antifreeze is one or more of ethylene glycol and propylene glycol.

Preferably, the defoaming agent is formed by mixing polyoxyethylene polyoxypropylene pentaerythritol ether and polyoxypropylene polyoxyethylene glycerol ether, and the ratio of the polyoxyethylene polyoxypropylene pentaerythritol ether to the polyoxypropylene polyoxyethylene glycerol ether is 1: 1.

Preferably, the surface enhancing agent is an alkali metal silicate.

Preferably, the sunscreen agent adopts nano titanium dioxide.

Preferably, the dispersant is one or more of triethylhexyl phosphoric acid, sodium dodecyl sulfate, methylpentanol and cellulose derivatives.

The preparation method of the environment-friendly water-based paint comprises the following steps:

1) putting the preservative and the surface reinforcing agent into a ball mill with the rotating speed of 120-260r/min according to the adaptive proportion, grinding for 2-5min, and pouring out for later use;

2) dividing deionized water into two parts, wherein the ratio of the two parts is 7:3, putting the first part of deionized water, the water-based acrylic resin and the dispersing agent into a stirrer, adjusting the temperature to 60-80 ℃, adjusting the stirring speed of the stirrer to 1000-1500r/min for stirring for 5-9min, and standing to normal temperature to obtain a resin emulsion;

3) adding a second part of deionized water, a water reducing agent, a preservative, an antifreeze, a defoaming agent and an anti-solarization agent into a reaction kettle at the temperature of 40-50 ℃ according to a proper proportion, fully reacting and uniformly mixing the preservative, the antifreeze and the defoaming agent, adjusting the temperature of the reaction kettle to 25-40 ℃, and stirring for 3-7min by using a stirrer at the speed of 300-900r/min to obtain an additive solution;

4) pouring the resin emulsion into a constant temperature reaction kettle with the temperature of 40 ℃, stirring for 2-7min at the speed of 700r/min by using a stirrer, slowly pouring the additive solution in the step 3) into the constant temperature reaction kettle, stirring for 4-7min at the speed of 900r/min by using the stirrer, pouring the film forming agent, continuously stirring for 5-7min, and standing to obtain a finished product.

According to the invention, the water reducing agent is added into the resin emulsion formed by mixing water and the water-based acrylic resin, so that the water consumption is reduced, the mixing effect is increased, the defoaming agent is added, the bubbles in the formed paint are avoided, the construction quality is ensured, the antifreezing agent and the sun-resistant agent are added, the normal use of the paint under low temperature and sunlight irradiation is ensured, the surface reinforcing agent is added, so that the paint has higher surface strength and better wear resistance after being shaped, and the dispersing agent and the film forming agent are added, so that the mixing of various additives is promoted and a bright film layer is formed, so that the obtained paint finished product has better comprehensive performance and a wider application layer.

Detailed Description

The present invention will be further illustrated with reference to the following specific examples.