Fluororubber-containing modified waterproof coating

Abstract

The invention discloses a fluororubber-containing modified waterproof coating which is prepared from the following components in percentage by weight: 35-45 percent of fluororubber, 25-35 percent of a film forming agent, 2-5 percent of a natural surfactant, 10-15 percent of a high temperature improving agent, 10-15 percent of a filler, 6-9 percent of a flame retardant and 1-4 percent of a pH regulator. The invention also discloses a preparation method of the waterproof coating. The preparation method comprises the following steps: adding the fluororubber, the film forming agent, the natural surfactant and the flame retardant in a sealed reaction kettle, continuously adding the filler for reaction for 1-3h under the condition with the temperature being 80-100 DEG C, cooling to 40-50 DEG C, adding the pH regulator, and carrying out continuous reaction to obtain the fluororubber-containing modified waterproof coating. As for the fluororubber-containing modified waterproof coating, by using the fluororubber, the formation of the waterproof coating is promoted, the adhesion performance of the waterproof coating to an interface is improved, the waterproof effect is better, and the waterproof coating is safe and environmentally friendly to use and cannot bring negative effects.

Description

technical field [0001] The invention relates to a waterproof coating, in particular to a modified waterproof coating of fluorine-containing rubber. Background technique [0002] There are two types of waterproof materials on the market: one is polyurethane waterproof coatings. Such materials are generally made of polyurethane and coal tar as raw materials. The tar gas it volatilizes is highly toxic and not easy to remove, so it was banned in China in 2000. The polyurethane waterproof coating that is still on sale uses asphalt instead of coal tar as a raw material. However, when using this kind of coating, it is generally diluted with organic solvents such as toluene and xylene, so it also contains toxicity; the other type is polymer cement-based waterproof coating. It is composed of a variety of water-based polymer emulsions and high-quality cement mixed with various additives. The flexibility of the polymer (resin) and the rigidity of the cement are integrated, making ...

AI Technical Summary

Problems solved by technology

The waterproof coating of the invention has a relatively high proportion of α-methylstyrene linear terpolymer, which is toxic and unsafe to use. If this component is not used, it will affect the base adhesion of the waterproof coating

[0006] In summary, the existing fluorine-containing waterproof coatings have poor waterproof and sealing effects due to improper proportioning, or there are safety problems in use, and there are no relevant reports on the use of fluorine rubber as the main component of waterproof coatings.