| 亲水性PU预聚体对PU/水玻璃注浆材料的增容性研究 |
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| 引用本文： | 夏茹,吕洋,方超,荣传新,唐永志,钱家盛,陈鹏,杨斌,郑争志.亲水性PU预聚体对PU/水玻璃注浆材料的增容性研究[J].安徽大学学报(自然科学版),2017,41(4). |
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| 作者姓名： | 夏茹 吕洋 方超 荣传新 唐永志 钱家盛 陈鹏 杨斌 郑争志 |
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| 作者单位： | 安徽大学化学化工学院,安徽合肥230601;安徽大学化学化工学院,绿色高分子材料重点实验室,安徽合肥230601;安徽大学化学化工学院,安徽合肥,230601;安徽理工大学土木建筑学院,安徽淮南,232001;淮南矿业集团有限公司,安徽淮南,232001 |
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| 基金项目： | 国家自然科学基金资助项目，淮南矿业集团科研计划项目 |
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| 摘 要： | 以MDI-50和PEG400为单体合成端NCO的亲水性聚氨酯预聚体,利用预聚体制备改性PU/水玻璃双组分杂化注浆材料.对注浆材料固结体的力学性能和断面形貌进行表征,结果显示,亲水性预聚体对聚氨酯/水玻璃两相的相容性改善明显,注浆材料的黏结、拉伸、冲击强度显著提升.结合预聚体黏度综合考虑,以nNCO/nOH为2时合成得到的预聚体,添加量w为25%时,浆液黏度较低,流动性好,且固结体的综合力学性能最佳,其中黏结强度为4.32 MPa,冲击强度为16.9kJ·m~(-2).
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| 关 键 词： | 聚氨酯预聚体 水玻璃 相容性 注浆材料 |
Study on compatibilization of hydrophilic PU pre-polymer on PU/silicate grouting material |
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| XIA Ru,LYU Yang,FANG Chao,RONG Chuanxin,TANG Yongzhi,QIAN Jiasheng,CHEN Peng,YANG Bin,ZHENG Zhengzhi.Study on compatibilization of hydrophilic PU pre-polymer on PU/silicate grouting material[J].Journal of Anhui University(Natural Sciences),2017,41(4). |
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| Authors: | XIA Ru LYU Yang FANG Chao RONG Chuanxin TANG Yongzhi QIAN Jiasheng CHEN Peng YANG Bin ZHENG Zhengzhi |
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| Abstract: | Isocyanate-terminated hydrophilic polyurethane pre-polymer was prepared with MDI and PEG400,which could improve the compatibility of PU/silicate hybrid twocomponent grouting material.The mechanical properties and fracture surface of grouting consolidation were studied.The results showed that hydrophilic pre-polymer improved compatibility of PU/silicate grouting material effectively.Adhesion,tensile and impact strength of consolidation grouting material were significantly enhanced.Considered with the viscosity of grouting,the grouting material with good fluidity and mechanical properties could be achieved under adding w=25％ pre-polymer of which the nNCO/nOH number was 2.The adhesive strength reached 4.32 MPa and the impact strength was 16.9 kJ · m-2. |
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| Keywords: | pre-polymer of polyurethane soluble silicate compatibility grouting material |
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