Magnesium-alloy paint-remover composition and its production

Abstract

A magnesium-alloy paint remover composition consists of halohydrocarbon 50-90wt%, acid 2-15wt%, alcohol 2-20wt%, liquefied hydrocarbon 0.5-10wt%, emulsifier 0.5-10wt% and corrosion inhibitor 0.1-5wt%. It can remove surface paint film shortly and have no secondary spray.

Description

technical field [0001] The invention relates to a paint remover composition and a preparation method thereof, more particularly to a magnesium alloy paint remover composition and a preparation method thereof. Background technique [0002] As a substitute for plastic, magnesium alloy is generally used to make industrial product casings. Compared with plastics, magnesium alloys have lower density, higher strength, better vibration resistance, and can absorb electromagnetic radiation, and more than 80% of magnesium alloys can be recycled and have little environmental pollution, so magnesium alloys are called " Green Metal". [0003] For the recycling of magnesium alloys, the old paint film attached to the treated surface must be stripped. Depending on the substrate and coating, different methods can be used to remove old paint films. The traditional paint removal methods are soda boiling, mechanical removal and fire. The disadvantages of these traditional methods are that t...

AI Technical Summary

Problems solved by technology

In recent years, many kinds of chemical paint removers have appeared on the market, such as Chongqing Three Gorges brand T-1 and T-2 paint removers. Although the use of these paint removers has greatly improved compared with traditional methods, the use of these paint removers When removing the old paint film, it needs to soak for a long time, the speed of paint removal is slow, and the dosage is large, which is highly corrosive to the substrate

Since magnesium alloy is an extremely active metal, the standard electrode potential is low, which makes the corrosion resistance of magnesium alloy very poor, and it is easy to be severely corroded in corrosive media, which is not suitable for most corrosive environments, so now Some paint removers are not suitable for removing the paint film on the surface of magnesium alloy