A kind of fluorocarbon emulsion used for colorful paint and its preparation process

Abstract

The invention discloses a fluorocarbon emulsion for a multicolor paint and a preparation technique thereof, and belongs to the technical field of search and development of building paints. A technical process comprises the following steps: pre-making a nuclear-layer emulsion, pre-making a shell-layer emulsion and an initiator, and subsequently, synthesizing to make a multicolor fluorocarbon emulsion from the pre-made nuclear-layer emulsion, shell-layer emulsion and initiator. By the design of a nuclear shell structure, structures of different Tgs (glass transition temperatures) are introduced into the emulsion; the overall performance of a lacquer film can be improved furthest on the basis of guaranteeing the film formation of the emulsion; meanwhile, fluorine monomers are furthest centralized in a shell layer; while the cost is decreased, the maximum fluorine utilization rate can be retained; the fluorocarbon emulsion provided by the invention does not contain APEO (alkylphenol ethoxylate), is further low-formaldehyde, has no discharge of a benzene-series substance or other pollutions, is quite narrow in particle size distribution and is quite good in product stability; compared with products of main competitors at home and abroad, the fluorocarbon emulsion has excellent performance such as water resistance, contamination resistance and weather resistance, particularly manifested in stability and stored energy.

Description

technical field [0001] The invention belongs to the technical field of research and development of architectural coatings, and relates to an architectural emulsion and a synthesis process thereof, in particular to a fluorocarbon emulsion for colorful coatings and a preparation process thereof. Background technique [0002] In recent years, due to its advantages of no solvent, unique decorative effect, low production cost and low construction materials, water-based multi-color coatings have been greatly promoted in Asia, especially China. At present, the commonly used system is to use the characteristics of "gel" formed between cellulose ether and special clay to realize the mutual independence and non-fusion of multi-color points. Form a water-insoluble flexible film, which can effectively prevent the coating components in the film and the protective glue components outside the film from diffusing each other, and also endow the surface of the color particles with the same ch...

AI Technical Summary

Problems solved by technology

Among them, the water resistance and weather resistance of styrene-acrylic and pure acrylic are not good, and the performance of silicon-acrylic emulsion has been improved to a certain extent, but the introduction of silicon monomer will inevitably bring some negative effects to the polymerization process. Fluorocarbon products have excellent performance, but due to Fluorine monomer is expensive and its application is greatly limited

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