| 硅烷封端聚醚密封胶底涂剂的制备与性能研究 |
| Research on Preparation and Performance of Silane-terminated Polyether Sealant Primer |
| 投稿时间：2021-08-19 修订日期：2021-08-19 |
| DOI：10.12136/j.issn.1000-890X.2023.01.0046 |
| 中文关键词: 硅烷封端聚醚密封胶 硅烷改性丙烯酸树脂 底涂剂 疏水性 粘结性 |
| 英文关键词: silane-terminated polyether sealant silane modified acrylic resin primer hydrophobicity adhesion |
| 基金项目:住房和城乡建设部2020年科学技术计划项目（2020-K-009） |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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. |
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