摘要
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。
The intermediate of poly methyl methacrylate-hydroxypropyl methacrylate(PMMAHMA)active resin was prepared by continuous solution polymerization,the silane modified acrylic resin(SMA)solution was obtained by modification of the intermediate using vinyl triethoxysilane(KH-151),and the primer for the adhesion enhancement between silane modified polyether(MS)sealant and concrete was produced.The effect of KH-151 content on the hydrophobicity of SMA and the adhesion between MS sealant and concrete specimen was studied.The results showed that KH-151 was successfully copolymerized with acrylic resin,and the hydrophobicity of SMA and the adhesion between MS and concrete increased with the increase of KH-151 content.When the mass fraction of KH-151 relative to PMMA-HMA was 8%,MS sealant-concrete specimen could pass the tensile test after water-immersion.
作者
赵满相
罗仕刚
薛雪雪
周洪芝
魏莹
杜瑞环
李如意
秦亚峰
张慧娥
ZHAO Manxiang;LUO Shigang;XUE Xuexue;ZHOU Hongzhi;WEI Ying;DU Ruihuan;LI Ruyi;QIN Yafeng;ZHANG Huie(Carbon Technology Group Co.,Ltd,Tianjin 300380,China;Nanchang Ansha Construction Drawing Design Review Co.,Ltd,Nanchang330000,China)
出处
《橡胶工业》
CAS
2023年第1期46-50,共5页
China Rubber Industry
基金
住房和城乡建设部2020年科学技术计划项目(2020-K-009)。
