This paper discribes the qualifying synthetic process of polyvinyl acetate emulsion and how to improve white emulsion property of cold resistance by using polyvinyl acetal as protective colloid.

• 本文阐述了改性聚醋酸乙烯酯乳液的合成工艺：采取聚乙烯醇缩甲醛作保护胶体的措施，改进了白乳胶的耐寒性；