Prepn and using method of quick drying polyamine agent

Abstract

The present invention relates to the preparation and usage of polyamine quick drying agent for water-thinned anionic latex paint. The preparation process includes the following steps: free radical polymerization of water solution of mixture monomer, acid as catalyst, water soluble salt redox pair as initiator and deionized water; and addition of a certain amount of volatile alkali to regulate pH value to 7-11 to obtain polyamine quick drying agent in non-ionic state. Owing to that proper amount of cross-linking structure is introduced into the polyamine quick drying agent, the paint with the polyamine quick drying agent has not only quick-drying characteristic, but also excellent storage stability, water resistance and wear resistance. The quick drying polyamine agent is ued in compounding water-base road marking paint.

Description

technical field [0001] The invention relates to a method for preparing and using a polyamine quick-drying agent for water-based latex paint. Background technique [0002] In recent years, with the enhancement of people's awareness of environmental protection and the improvement of environmental protection regulations, most countries have stricter restrictions on the use and emission of volatile organic compounds (VOC) in coatings. People use different technologies to reduce VOC in coating systems. use and emissions. Water-based paint is one of the effective means to reduce VOC content. As the main variety of water-based paint, latex paint has been commercialized for more than 50 years. Because of its low toxicity and non-combustibility, fast film formation, convenient construction and good air permeability And many other advantages and can meet the requirements of environmental protection, so it has been developed rapidly and widely used in various ...

AI Technical Summary

Problems solved by technology

In the early 1980s, water-based paints began to be used to make road signs to replace traditional solvent-based road marking paints. Commonly used water-based road marking paints are mainly based on acrylic anionic emulsions. This type of emulsion system uses water as the dispersion medium , thus significantly reducing the VOC content in the paint system, but a major problem is that the water-based paint does not dry fast enough to meet actual needs

The introduction of acidic groups into such water-soluble amine-containing polymers can improve the storage stability of emulsions and coatings, but the use of a large amount of water-soluble polyamines and the presence of hydrophilic acidic groups will affect the The water resistance, abrasion resistance and other properties of the coating will be adversely affected