Environment-friendly non-toxic paint remover and preparation method thereof

Abstract

The invention discloses an environment-friendly non-toxic paint remover and a preparation method thereof. The environment-friendly non-toxic paint remover is prepared from in parts by mass: a first component and a second component, and the proportion of the first component to the second component in the paint remover is 1:(0.3 to 0.6), wherein (1) the first component comprises in parts by mass: 30-48 parts of triethyl phosphate, 2-6 parts of phenol, 1-3 parts of formic acid, 2-4 parts of a 5% aluminum-magnesium silicate aqueous solution, and 0.8-1.8 parts of chromic oxide; and (2) the second component comprises in parts by mass: 20-30 parts of naphtha, 7-10 parts of diethylene glycol monomethyl ether, 2.4-3.8 parts of sodium fluoride, 0.8-1.8 parts of peregal O, and 0.6-1.4 parts of wax. The paint remover is free of odor and toxin and causes no damage to a base material, the molecular weight is not changed before and after washing, and the very high recovery rate is achieved; and the washing time is short, energy is saved, the production rate is increased, and the environment-friendly non-toxic paint remover is suitable for removing old cross-linked cured paint films such as epoxypaint and polyurethane paint.

Description

technical field [0001] The invention relates to the technical field of paint removers, in particular to an environmentally friendly and non-toxic paint remover and a preparation method thereof. Background technique [0002] With the improvement of the way of life and production, people are increasingly asking for the construction technology of removing the old paint film for anti-corrosion coating and refreshing decoration in the fields of industry, transportation, urban construction, aircraft manufacturing, automobile manufacturing, and house decoration. [0003] Today, the types of paint removers can be divided into the following categories: 1. Acidic paint remover 2. Alkaline paint remover 3. Solvent-based paint remover. Wherein acidic and alkaline paint strippers can corrode the substrate, and the acidic or alkaline sewage produced is very harmful to the environment. Most of the solvent-based paint removers use ordinary organic solvents as the main solvent, which has no...

AI Technical Summary

Problems solved by technology

But unavoidably, these organic solvents all have certain toxicity, and volatilize fast, pollute the air

For example: some paint removers are solvent-based paint removers with dichloromethane as the main solvent. Among the chlorinated alkanes derivatives, dichloromethane is the lightest liquid compound with small molecular weight, low molecular energy and strong penetration; However, dichloromethane is highly toxic, volatilizes quickly, and is easily inhaled by the operator, posing a threat to the health of the operator. At the same time, the solvent volatilizes into the air, which will also cause damage to the ozone layer.

Moreover, some paint removers use paraffin as a thickener. The use of paraffin not only increases the viscosity of the solvent, but also reduces the volatility of the solvent. Although the effect is good, it is difficult to remove and it is difficult to carry out the second painting