【摘要】 为改善聚醋酸乙烯乳液胶粘剂耐水性差、蠕变性大的缺点，用脲──三聚氰胺──甲醛树脂对其进行了改性，使其干强度和湿强度均有明显的提高，并对聚醋酸乙烯乳液胶粘剂缺陷的原因作了分析，介绍了改进和提高其性能的原理和方法。更多还原

【Abstract】 To improve Polyvinylacetate emulsion adhesive the failing of large creep and bad waterresistance,blended with Urea－Melamine-Formaldehyde resin. Making the adhesive have moreextend,progress in dry strength and green strength obtaining satisfactory results.In the paper,analyzing the reason of the falling exist in PVA cemulsion adhesive, introducing the experimentalways of improving the adhesive charactertic,and discussing the experiment results.更多还原