Preparation and application of environmental-protective aqueous paint remover

Abstract

A preparation and an application of an environmental-protective aqueous paint remover are disclosed. The environmental-protective aqueous paint remover is prepared from following raw materials, by weight, 22-25% of benzyl alcohol, 15-18% of sodium p-toluene sulfonate, 3.0-4.0% of potassium hydroxide, 0.8-1.4% of sodium gluconate, 4-8% of a cosolvent and 45-55% of tap water. The paint remover is prepared by following steps: (1) adding the sodium p-toluene sulfonate, the sodium gluconate, the potassium hydroxide to the tap water to obtain a mixture and stirring the mixture to enable the sodium p-toluene sulfonate, the sodium gluconate and the potassium hydroxide to be completely dissolved; and (2) adding the benzyl alcohol, triethanolamine and ethanol to obtain a mixture and stirring the mixture for dissolving the benzyl alcohol, the triethanolamine and the ethanol to obtain a transparent liquid product with a color from white to yellow. The paint remover is alkaline and is subjected to a paint removing experiment during a use process with a heating temperature being 50-70 DEG C. The environmental-protective aqueous paint remover is advantaged in that: (1) the paint remover is water-soluble and is environmental-protective when being used for replacing a volatile solvent paint remover; (2) the paint remover is free of toxic chemical products; (3) the paint remover is suitable for removing various paints; (4) the paint remover is alkaline and is free of damaging a base material; and (5) the paint remover is not liable to volatilize, can be used repeatedly and is low in comprehensive cost.

Description

[0001] technical field [0002] The invention belongs to the field of paint stripping coatings, and provides a heat-soaking and environment-friendly water-based paint stripper, which is a liquid that is non-toxic, harmless to the environment, and has low cost. The main solvent is water, and the operation is safe. Simultaneously, the present invention also relates to the preparation method and application of the paint remover, which brings immeasurable benefits to the paint remover industry. Background technique [0003] Coatings can protect and decorate objects, but in the process of use, the coating film will be damaged, or gradually aged, or repaired and renewed for aesthetic reasons. Regardless of the coating or repair of household appliances, mechanical equipment, furniture, vehicles and ships, etc., it is necessary to remove the old or damaged coating before spraying. Traditional paint strippers mainly use methylene chloride as a solvent, such as methylene chloride, wh...

AI Technical Summary

Problems solved by technology

Traditional paint strippers mainly use methylene chloride as a solvent, such as methylene chloride, which has the disadvantages of high volatility, high toxicity, serious environmental pollution, and great harm to construction workers.