摘要
以改性MDI、聚醚多元醇、水玻璃及增塑剂(DBP)为原料,引入特殊催化剂C-1与催化剂DBTDL进行协同作用,制备了聚氨酯水玻璃复合灌浆材料并对其物理性能进行了研究。结果表明,复合灌浆材料浆液的初凝时间及固结体的抗压强度与催化剂的种类及用量密切相关;增塑剂DBP可以显著降低复合灌浆材料的黏度;当水玻璃、聚醚多元醇A、增塑剂、催化剂DBTDL和C-1用量分别为40%、10%、10%、0.15%和0.25%时,复合灌浆材料的综合性能最佳。
Polyurethane ＆ sodium silicate compound grouting material is produced with modified MDI, polyether glycol, sodium silicate and plasticizer （DBP） as raw materials, and introducing special catalyst C-1 to work with catalyst DBTDL. The article studies the physical properties of this material. Results show： the initial setting time of the compound grout and the compressive strength of the consolidation are closely related to the kind and dosage of catalyst; plasticizer DBP can greatly reduce the viscosity of the compound grouting material; while the dosages of sodium silicate, polyether glycol A, plasticizer, catalyst DBTDL, C-1 are 40%, 10%, 10%, 0.15% and 0.25% respectively, the overall performance of the compound grouting material is the best.
作者
杨元龙
吴龙梅
曾娟娟
张文超
于方
Yang Yuanlong Wu Longmei Zeng Juanjuan Zhang Wenchao Yu Fang(Guangzhou Chemical Grouting Co., Ltd., CAS, Guangzhou, Guangdong 510650, China Guangdong Chemical Grouting Engineering Technology Research ＆ Development Center, Guangzhou, Guangdong 510650, China)
出处
《中国建筑防水》
2017年第18期5-9,共5页
China Building Waterproofing
基金
广东省产学研基金项目
广东省中科化灌工程与材料院士工作站(2013B090400024)
关键词
复合灌浆材料
聚氨酯
水玻璃
黏度
初凝时间
固结体
抗压强度
compound grouting material
polyurethane
sodium silicate
viscosity
initial setting time
consolidation
compressive strength
