Advanced Search
  • 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引（EI）收录期刊
  • Scopus数据库收录期刊
Volume 38 Issue zk1
Turn off MathJax
Article Contents
Abstract
References
Related Articles
LI Ya-di, LI Jia-jin, CHEN Ding-ding, FAN Ren-xiang, SANG Guo-long, NI Jian-ming, DING Yun-sheng. Properties of nanosilica-reinforced polyurethane by in-situ preparation and its application in polyurethane grouting[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(zk1): 83-86. DOI: 10.11779/CJGE2016S1015
Citation: LI Ya-di, LI Jia-jin, CHEN Ding-ding, FAN Ren-xiang, SANG Guo-long, NI Jian-ming, DING Yun-sheng. Properties of nanosilica-reinforced polyurethane by in-situ preparation and its application in polyurethane grouting[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(zk1): 83-86. DOI: 10.11779/CJGE2016S1015
shu

Properties of nanosilica-reinforced polyurethane by in-situ preparation and its application in polyurethane grouting

  • 1. Institute of Polymer Materials and Chemical Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China;
    2. Huaibei Mining ( Group)Co., Ltd., Huaibei 235000, China;
    3. Key Laboratory of Advanced Functional Materials and Devices, Hefei 230009, China

More Information
  • Received Date: November 29, 2015
  • Published Date: March 24, 2016
    Graphical Abstract
    • Abstract
  • The prepolymer of hydrophilic polyurethane is synthesized by diisocyanate and polyether polyol, and then the polyurethane prepolymer blends with sodium silicate solution to prepare nanosilica-reinforced hydrophilic polyurethane composites (HPU/nano-SiO2) via in-situ reactions. The FTIR-ATR and X-ray diffraction (XRD) are employed to confirm the existence of the nano-SiO2 and its chemical bond to HPU chain, and the size and dispersion of nano-SiO2 in HPU matrix are investigated by transmission electron microscopy (TEM). The gel time of the mixture consisting of HPU prepolymer and sodium silicate solutions and the mechanical properties of HPU/nano-SiO2 composites are also tested. The results show that the particles of nano-SiO2 disperse homogeneously in the HPU matrix, and the nano-SiO2 combines with HPU chains by chemical bonds to form HPU/nano-SiO2 composites. What’s more, the gel time of HPU and sodium silicate solution blend increases compared to that of the blend of HPU and water, and the compression strength of HPU/nano-SiO2 is improved effectively than that of pristine HPU, so the HPU prepolymer can react with sodium silicate solutions to produce the nanosilica reinforced hydrophilic polyurethane grout, which has high ability and efficiency to form adequate plugs for underground water though the plugging project of coal mine.
    • FullText(HTML)
    • References (5)
  • [1]
    Naudts. Irreversible changes in the grouting industry caused by polyurethane grouting[C]// An Overview of 30 years of polyurethane Grouting. Grouting and ground Treatment- Proceedings of 3rd International specialty Conference on Grouting and Treatment, 2003.
    [2]
    XIANG X J, QIAN J W, YANG W Y, et al. Synthesis and properties of nanosilica-reinforced polyurethane for grouting[J]. Journal of Applied Polymer Science, 2006, 100: 4333-4337.
    [3]
    PHUA S L, YANG Li-ping, TOH C L, et al. Reinforcement of polyether polyurethane with dopamine-modified clay: the role of interfacial hydrogen bonding[J]. Appl Mater Interfaces, 2012(4): 4571-4578.
    [4]
    ZHANG Li-hui, ZHANG Hong, GUO Jin-shan. Synthesis and properties of uv-curable polyester-based waterborne polyurethane/functionalized silica composites and morphology of their nanostructured films[J]. Industrial & Engineering Chemistry Research, 2012, 51: 8434-8441.
    [5]
    朱 锦, 李雅迪, 孙晓红, 等.以TDI为扩链剂合成亲水性聚氨酯注浆堵水材料研究[J]. 中国建筑防水, 2014, 12: 23-26. (ZHU Jin, LI Ya-di, SUN Xiao-hong, et al. Study on synthesis of hydrophilic polyurethane grouting and water-blocking material with TDI as chain extender[J]. China Building Waterproofing, 2014, 12: 23-26. (in Chinese))
    • Related Articles

  • Related Articles

    [1]YANG Xu, CAI Guoqing, LIU Qianqian, LI Fengzeng, SHAN Yepeng. Experimental study on influences of wetting-drying cycles on microstructure and water-retention characteristics of clay[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(S2): 11-15. DOI: 10.11779/CJGE2024S20006
    [2]QI Yongzheng, HAO Yunjie, WU Silin, ZHOU Aizhao, ZHU Zhongquan, YANG Ziming, JIN Yongjie. Effects of ultrasonic duration on performance of sludge dewatering[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(S1): 84-87. DOI: 10.11779/CJGE2023S10056
    [3]ZHU Weibin, LIU Chang, ZHONG Xiaochun, YOU Zhi, ZHU Nengwen. Performance evaluation of shield tail brushes based on compression and grease escape tests[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(5): 1086-1093. DOI: 10.11779/CJGE20211421
    [4]LIU Yong-chao, YUAN Zhen-yu, CHENG Xue-song, LI Gang, ZHANG Tian-xing, LI Qing-han. Experimental study on plugging effect of different grouting materials for water and sand leakage of tunnels[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(S2): 249-252. DOI: 10.11779/CJGE2021S2059
    [5]TANG Zhao-guang, WANG Yong-zhi, DUAN Xue-feng, SUN Rui, WANG Ti-qiang. Development and performance evaluation of separable high-frequency response miniature pore water pressure transducer[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(7): 1210-1219. DOI: 10.11779/CJGE202107005
    [6]ZHANG Wen-jun, CAO Wen-zhen. Mechanical and waterproof performances of joints of shield tunnels with large cross-section under earthquakes[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(4): 653-660. DOI: 10.11779/CJGE202104007
    [7]LI Zhao-feng, GAO Yi-fan, ZHANG Jian, QI Yan-hai, WANG Yan-sheng, LIU Chao. Experimental study of water-soluble vegetable gum-modified cement-sodium silicate plugging materials[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(7): 1312-1321. DOI: 10.11779/CJGE202007015
    [8]Research on the Failure Mode and the Compression Strength for the Frozen Clay at Different Temperature Gradients[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(12): 1856-1860.
    [9]Development and application of new waterproof grouting materials of polyurethane[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(3).
    [10]HAO Zhe, WANG Yinggang, LIU Bin. Reliability design of grouting for stopping up water in rock mass[J]. Chinese Journal of Geotechnical Engineering, 2002, 24(5): 592-595.
    • Supplements (0)

Catalog

    Get Citation
    PDF
    XML
    Article views (439) PDF downloads (392) Cited by()
    Related
    Copyright © 2010 Editorial By Chinese Journal of Geotechnical Engineering 苏ICP备05007122号-11公安联网备案号：32010602011255
    Editorial Office address：34 Hujuguan,Nanjing 210024,ChinaPostal Code：210024Tel：025-85829534，85829556E-mail: ge@nhri.cn

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return