炔属二醇表面活性剂在环氧树脂灌浆材料中的作用  

Effect of Acetylene Glycol Surfactant in Epoxy Resin Grouting Material

作　　者：魏涛[1,2,3] 张健 张达[1,2,3] 吴卫东 WEI Tao;ZHANG Jian;ZHANG Da;WU Wei-dong(Material Department,Changjiang River Scientific Research Institute,Wuhan 430010,China;National Research Center on Dam Safety Engineering Technology,Wuhan 430010,China;Engineering Technology Research Center of the Ministry of Water Resources on Water Engineering Safety and Disease Control Technologies,Wuhan 430010,China;Xinjiang Production and Construction Corps Water Conservancy and HydropowerConstruction Engineering Group Co.,Ltd.,Urumqi 830000,China)

机构地区：[1]长江科学院材料与结构研究所,武汉430010 [2]国家大坝安全工程技术研究中心,武汉430010 [3]水利部水工程安全与病害防治工程技术研究中心,武汉430010 [4]新疆生产建设兵团水利水电工程集团有限公司,乌鲁木齐830000

出　　处：《长江科学院院报》2024年第7期163-167,共5页Journal of Changjiang River Scientific Research Institute

基　　金：国家自然科学基金项目(51378078,51609021);新疆生产建设兵团财政科技计划项目(2020AB010);中国华电金上公司科技项目(CHDKJ22-02-125)。

摘　　要：通过在CW环氧树脂灌浆材料浆液中加入2种不同结构的非离子表面活性剂炔属二醇,制备了2种改性环氧树脂灌浆材料,并开展了黏度、表面张力、接触角、渗透性和浆材固化物力学强度的研究。结果表明:加入表面活性剂对浆液的黏度、浆材固结体抗压强度、抗拉强度无明显影响,但可以提高浆材的粘接强度和抗剪强度,降低浆液的表面张力和接触角,提高浆液在黏土中渗透性。其中,加入表面活性剂S 1对浆液的粘接强度、拉伸剪切强度和在黏土中的浸润渗透高度提升更为显著,分别提高了23.6%、37.5%和109.4%。基于以上试验,初步探讨了表面活性剂提高浆液渗透性的机理。Two types of modified epoxy resin grouting materials were formulated by incorporating different structured non-ionic surfactant alkynyl glycol into CW slurry.The viscosity,surface tension,contact angle,permeability,and mechanical strength of the cured slurry were investigated.Findings indicate that the addition of surface-active agents has no evident impact on viscosity,compressive strength,or tensile strength of the consolidated slurry.However,surface-active agents enhance the adhesive strength and shear strength,reduces surface tension and contact angle,and improves slurry permeability in clay.Addition of surfactant S 1 significantly enhances adhesive strength,tensile shear strength,and permeability in clay by 23.6%,37.5%,and 109.4%,respectively.Mechanisms underlying surfactant-induced improvements in slurry permeability are preliminarily discussed based on the tests.

关 键 词：表面活性剂 环氧树脂灌浆材料 表面张力 接触角 渗透性 

分 类 号：TV46[水利工程—水工结构工程]