Low-emulsion-addition and high-scrubbing-resistance water-based interior wall emulsion and preparation thereof

Abstract

The invention belongs to the field of latex coatings, and particularly relates to low-emulsion-addition and high-scrubbing-resistance water-based interior wall emulsion and preparation thereof. The water-based interior wall emulsion is prepared from the following raw materials in parts by weight: 10 to 25 parts of styrene, 5 to 20 parts of butyl acrylate, 5 to 20 parts of iso-octyl acrylate, 0.5 to 5 parts of an alkyl carboxylic acid cross-linking monomer, 0.5 to 5 parts of siloxane, 1 to 5 parts of organic matter oil, 1.0 to 2.5 parts of an emulsifier, 0.1 to 0.5 part of persulfate and 50 to 55 parts of water. The prepared emulsion has extremely high wetting, dispersing and wrapping capability for a pigment filler, so that a latex paint obtained under the condition of low emulsion addition is endowed with high scrubbing resistance.

Description

[0001] Technical field: [0002] The invention belongs to the field of latex coatings, in particular to a water-based emulsion for interior walls with low emulsion addition and high scrub resistance and its preparation. [0003] Background technique: [0004] With the improvement of people's living standards in the world today, the pursuit of human beings has already changed from the problem of food and clothing to the pursuit of spirit and even prolonging life. Simple architectural coatings or simple interior decoration are no longer enough to meet people's inner needs. Therefore, people's living environment needs to become safer, greener and healthier; when the existing acrylic emulsion is applied to water-based interior wall latex paint, the amount of acrylic resin contained in the lowest-grade latex paint generally The amount will not be lower than 8% of the whole latex paint; because the acrylate emulsion itself has the characteristics of hot stickiness and brittleness, wh...

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Problems solved by technology

Therefore, people's living environment needs to become safer, greener and healthier; when the existing acrylic emulsion is applied to water-based interior wall latex paint, the amount of acrylic resin contained in the lowest-grade latex paint generally The amount will not be lower than 8% of the whole latex paint; because the acrylate emulsion itself has the characteristics of hot stickiness and brittleness, when the amount of acrylic resin is increased, the temperature of the wall due to the direct sunlight in summer is as high as 50°C or even Higher, and the heat of the wall will definitely cause the resin in the coating to become soft and sticky, which will have a negative impact on the stain resistance of the coating; if you try to increase the surface hardness of the polymer particles to overcome its thermal stickiness It is cold and brittle and improves its scrub resistance. Due to the increase of coating hardness, it will eventually affect its flexibility and even become more brittle; although various additives can be introduced through the coating formulation to improve the composition of the coating in the later stage. Film performance or flexibility, but the introduction of additional or excessive additives will eventually produce more VOCs, which will bring pollution to the environment and human health problems; as far as the emulsion itself is concerned, the lower addition amount in the coating formulation It can reduce the emission of VOC and make the environment more environmentally friendly and safe; the second is based on weakening the influence of the hot-viscous, cold-brittle nature of the emulsion on the coating, making the coating more stain-resistant and has excellent scrub resistance

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