n.醋化器
The hydroxyl value of epoxy-containing polyester was determined by analyzing acetification principle and using acetyl chloride as acetifier and methylene chloride as solvent. 通過(guò)對(duì)其?;矸治?選用乙酰氯作?;瘎?、二氯甲烷作?;軇?測(cè)定含環(huán)氧基聚酯的羥值。