Novel environment-friendly nontoxic paint remover and preparation method thereof

Abstract

The invention belongs to the technical field of paint removers, particularly to a novel environment-friendly nontoxic paint remover and a preparation method thereof. The paint remover comprises esters, high boiling point alcohol, an additive and the balance of water, wherein the volume fraction of the esters is 20-50%, the volume fraction of high boiling point alcohol is 10-50%, and the volume fractions of the esters and the high boiling point alcohol are not 50% at the same time. The paint remover uses the esters as main solvents, uses the high boiling point alcohol as a cosolvent, is environment-friendly, nontoxic, and high in depainting efficiency, has no corrosion on the base body, makes up the insufficiencies of similar paint removers, is suitable for common metals, curtain walls and part plastic base bodies, and meets requirements of people on environmental protection and requirements of factories on nontoxic product development.

Description

technical field [0001] The invention relates to the technical field of paint removers, in particular to a novel environment-friendly and non-toxic paint remover and a preparation method thereof. Background technique [0002] 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. Among them, both acidic and alkaline paint removers 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 corrosion to the substrate, so they are more popular in recent years. 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, dichlorome...

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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