Environment-friendly type aqueous paint remover for removing polysiloxane paint

Abstract

The invention discloses an environment-friendly water paint remover for removing a polysiloxane paint, the constituents of which comprise carbonic allyl ester with the proportion of 25 percent to 40 percent, methyl carbonate with the proportion of 10 percent to 20 percent, alkyl pyrrolidone with the proportion of 5 percent to 20 percent, glycol ether with the proportion of 2 percent to 10 percent, micromolecule alkylketone with 3 to 6 carbon atoms and the proportion of 5 percent to 15 percent, an anticorrosive agent with the proportion of 2 percent to 4 percent, a surfactant built with negative ions and non-ions and with the proportion of 1 percent to 2 percent, and with a built mass ratio between an anionic surfactant and a non-ionic surfactant equal to 0.8 : 1 to 1 : 1, a thickener with the proportion of 3 percent to 6 percent, and water with the remained proportion. The remover of the invention has the advantages that the remover can be easily washed after being painted on the surface of basic materials for removing the paint, functioning temperature is normal temperature without the necessity of heating, and an oil-bound film is not formed, thus imposing no impact on a next hull painting. In addition, the remover of the invention contains no strong acid and base, thus having no damage to the surface of metal basic materials.

Description

technical field [0001] The invention relates to a paint remover, in particular to a paint remover for removing polysiloxane paint. Background technique [0002] After long-term exposure, the paint film will age, crack, peel and fall off, causing the paint film to lose its protective effect. Paint strippers are often used to remove old paint so that new paint can be applied. And with the development of the national economy and the improvement of people's lives, people put forward higher requirements for anti-corrosion, not only to improve the long-term protection cycle, if some projects require 20 years or longer, but also to be safe, healthy, and meet the requirements The latest requirements of environmental protection; not only to beautify the environment, but also pay attention to cost and benefit. In this regard, in addition to the research and development of various new heavy-duty anti-corrosion coatings, a lot of research has been carried out in recent years on polysi...

AI Technical Summary

Problems solved by technology

Therefore, ordinary paint removers are not very effective in removing polysiloxane paints, and the requirements for paint removers for polysiloxane paints are also higher.

And so far, most of the paint removers on the market use chlorinated substances that are highly volatile and harmful to the ozone layer to remove paint. Although the effect is good, it is very harmful to the operator and the environment.

There are also some paint removers that use strong acids or alkalis, such as NaOH, concentrated sulfuric acid, ammonia water, etc., which are very harmful to the substrate, operators and the environment.

Or there are some paint removers with slightly better environmental compatibility, but they need to be heated, etc., which increases the difficulty of operation for large-scale outdoor working environments.