Preparation method of self-temperature-regulating water-based silicon-acrylic paint

Abstract

The invention discloses a preparation method of a self-temperature-regulating water-based silicon-acrylic paint. The method comprises the following steps of: adding a certain amount of a dispersing agent and water into a reaction kettle in an oil bath at 45DEG C, and performing full stirring at high speed; adding a mixture of ethyl methacrylate, methyl methacrylate, divinyl benzene, a phase-changematerial and lauroyl peroxide (LPO) into the reaction bottle according to a formula ratio, and further performing stirring for 1h; then, reducing the rotating speed to 250rpm, performing heating to 75DEG C, carrying out reaction for 3.5h, performing heating to 80DEG C, and further carrying out reaction for 1h; conducting suction filtration, washing and drying on the product while the product is hot to obtain self-temperature-regulating filler; and adding the self-temperature-regulating filler into water-based silicon-acrylic paint according to a certain proportion to obtain the self-temperature-regulating water-based silicon-acrylic paint. The self-temperature-regulating water-based silicon-acrylic paint prepared by the method provided by the invention has the advantages of outstanding water-based properties, strong temperature regulating performance and good heat resistance.

Description

technical field [0001] The invention relates to a preparation method of a self-adjusting temperature water-based silicon-acrylic paint, which is a preparation method by adopting suspension polymerization and belongs to the field of paint preparation. [0002] technical background [0003] Self-regulating paint refers to a type of paint that adds some heat-insulating or temperature-controlling substances (such as composite silicates, phase-change materials) to the paint to achieve the purpose of regulating temperature and saving energy. A phase change material is a material that can absorb or release a large amount of energy during a phase change. Microcapsule technology can coat the phase change material to prevent leakage of the phase change material during use, so as to achieve better energy storage effect. [0004] Phase change materials can release a large amount of heat during the phase change process without polluting the environment, and can maintain the temperature w...

AI Technical Summary

Problems solved by technology

At present, the process of synthesizing melamine resin and urea-formaldehyde resin by in-situ polymerization has been quite perfect, but the synthesis process will cause formaldehyde residues in varying degrees, which is harmful to the environment; the reaction speed of polyurea resin and polyurethane synthesized by interfacial polymerization is relatively fast , It is easy to cause the reaction to be difficult to control and other reasons, which make it difficult to form industrial production; due to the principle of complex coacervation method, the morphology of the synthesized microcapsules is difficult to control;

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