摘要： 通过乳液聚合法，用羟基硅油与硅烷偶联剂 A-151（乙烯基三乙氧基硅烷）或 KH-570（γ－甲基丙烯酰氧基丙基三甲氧基硅烷）对丙烯酸酯进行化学改性，借助硅烷偶联剂中的碳碳双键和硅氧烷结构将羟基硅油与丙烯酸酯连接起来。然后利用红外光谱（FT-IR）对改性丙烯酸酯的微观结构进行表征，研究结果表明：Si-O键成功地共聚到了丙烯酸长链中。并对改性后乳液的各项性能进行对比，结果发现通过 KH-570改性后的丙烯酸酯乳液在各项性能上都有明显的提升。

关键词: 丙烯酸, 硅烷偶联剂, 改性, 羟基硅油

Abstract: Through emulsion polymerization, ydroxy silicone ol and silane coupling agent A-151(VTES)or KH-570(y-methacryl trimethoxysilane )were used for chemical modification of acrylates.The carbon-carbon double bond and the siloxane structure in silane coupling agent kept the hydroxyl siliconoil and acrylate connected. The microstructure of modified acrylate was characterized by FT-IR. The results showed that the Si-O bond was successfully copolymerized into the acrylate polymer chain. And the performance of the modified emulsion was compared and the performance KH-570 modified acrylic emulsion has been significantly improved.

Key words: acrylic acid, silane coupling agent, modified, hydroxy silicone oil