Environment-friendly modified white latex and preparation method thereof

The invention relates to the technical field of adhesives, and discloses environment-friendly modified white latex and a preparation method thereof. The environment-friendly modified white latex is prepared from the following raw materials in parts by weight: 35 to 50 parts of vinyl acetate, 20 to 40 parts of polyvinyl alcohol, 36 to 64 parts of carboxyl-terminated hyperbranched polyester, 7 to 21 parts of oxidized starch, 0.1 to 0.3 part of an initiator, 3 to 5 parts of an emulsifier, 0.05 to 0.15 part of an auxiliary agent and 300 to 500 parts of water. The above adhesive prepared by the invention is environment-friendly and non-toxic, and almost no VOC is discharged; and heat resistance, the bonding strength and the low-temperature storage stability are also remarkably improved while water resistance is improved. 本发明涉及胶粘剂的技术领域，公开了一种环保型改性白乳胶及其制备方法。一种环保型改性白乳胶，由包括如下重量份的原料制成：醋酸乙烯35-50份、聚乙烯醇20-40份、端羧基超支化聚酯36-64份、氧化淀粉7-21份、引发剂0.1-0.3份、乳化剂3-5份、助剂0.05-0.15份、水300-500份。本申请制得的胶粘剂环保无毒，几乎无VOC排放；并且在耐水性提高的同时，耐热性、粘接强度以及低温