Alkali paint remover and its preparing and using method

Abstract

The invention relates to alkaline paint remover and the method to manufacture that belongs to paint remover technology field. It is made up of sodium hydroxide solution, surface activator and assistant additive. The consistency of sodium hydroxide solution is 2-15%, surface activator hexadecyl trimethyl bromized amine 0.05-5%, and assistant additive 0.1-5%, and the other is water. Manufacturing method is that: making 2-15% consistency of sodium hydroxide solution; adding CTMAB 0.05-5%, and assistant additive 0.05-5%; dissolving fully under the temperature of 50-80 degree centigrade to gain paint remover. The advantages of the invention are low cost, low toxicity, fast paint removing, etc.

Description

technical field [0001] The invention belongs to the technical field of paint remover, and in particular provides an alkaline paint remover and its preparation and use method, which are used for removing the surface paint layer of metal thin plates such as packaging tinplate and electronic circuit boards. Background technique [0002] Tinplate scrap is used in the smelting process as a raw material for smelting tin-containing special steel, and the protective and decorative coating layer on its surface must be removed before application, otherwise, it will decompose during the high-temperature smelting process to generate aromatic hydrocarbons, halogenated hydrocarbons, etc. Hazardous substances, seriously pollute the environment and endanger human health. Therefore, it is considered that an appropriate paint stripping process is required before smelting. [0003] The printing coatings of tinplate steel plates for packaging are divided into two types: external printing and i...

AI Technical Summary

Problems solved by technology

However, it needs to be heated during use, and the paint removal time is long, generally 10-72 hours, and the corrosion of the metal substrate is too large