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Preparation and Performance Study on High Performance Water Reactive Polyurethane Grouting Material
Author(s): Liu Yuting, Sun Dewen, Ran Qianping, Lu Liqun, Li Bo, Yin Hao
Pages: 11-
14,20
Year: 2015
Issue:
1
Journal: China Building Waterproofing
Keyword: 聚氨酯灌浆材料; 亲水型; 疏水型; 堵水性能;
Abstract: 分别制备了两种单组分水活性亲、疏水型聚氨酯灌浆材料,并探讨了其凝胶时间、发泡率、包水性、尺寸稳定性等.结果表明:以TDI/MDI复合二异氰酸酯体系制得的亲水型聚氨酯灌浆料包水速率快,不舍游离TDI,环保性能优异;以高羟值聚醚多元醇、多亚甲基多苯基多异氰酸酯(PA PI)和多种助剂为原料制得的疏水型聚氨酯灌浆料,具有较高的发泡倍率和抗压强度、通过模拟动水条件下单裂隙灌浆试验,验证了所制备的两种聚氨酯灌浆料皆具有较高的实际堵水效率.
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