涂料用水溶性丙烯酸树脂的合成

Synthesis of Water-soluble Acrylic Resins for Paints

考查了几种因素对丙烯酸树脂水溶性、树脂水溶液的粘度及粘度峰值现象的影响。结果表明 :影响树脂水溶性的主要因素是 AA单体的用量和— COOH的中和程度 ;影响树脂水溶液粘度的主要因素是分子量调节剂和助溶剂的种类及用量 ;影响粘度峰值现象的主要因素是 AA用量。

The effects of various factors on the water-solubility and viscosity of acrylic resins were investigated. The water-solubility of the resins mainly depends on the content of AA in the resins and the extent of neutralizing —COOH . The viscosity of the aqueous solution of the resin mainly depends on dosages and types of molecular weight modifiers and cosolvents. The ‘viscosity-peak phenomenon’ mainly depends on the content of AA,the extent of neutralizing —COOH and types of cosolvents.