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硅烷封端聚醚密封胶底涂剂的制备与性能研究

ZHAO Manxiang,LUO Shigang,XUE Xuexue,ZHOU Hongzhi,WEI Ying,DU Ruihuan,LI Ruyi, QIN Yafeng, ZHANG Huie

China Rubber Industry(2023)

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Abstract
通过连续溶液聚合制备聚甲基丙烯酸甲酯-甲基丙烯酸羟丙酯(PMMA-HMA)活性树脂中间体,用乙烯基三乙氧基硅烷(KH-151)对其改性,得到硅烷改性丙烯酸树脂(SMA)溶液,制备了硅烷改性聚醚(MS)密封胶与混凝土之间的底涂剂,并研究KH-151用量对SMA的疏水性和对MS密封胶-混凝土试件粘结性的影响.结果表明:KH-151与丙烯酸树脂发生了共聚反应;增大KH-151用量可明显增强SMA的疏水性和提高MS密封胶与混凝土之间的粘结性,当KH-151相对于PMMA-HMA的质量分数为8%时,MS密封胶-混凝土试件通过浸水后的拉伸试验.
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