一种新型钢筋阻锈剂的阻锈性能.pdf.pdf

第 28 卷第 12 期腐蚀与防护 Vol. 28 No. 12
2007 年 12 月 CORROSION & PROT ECTION Decembe r 2007
一种新型钢筋阻锈剂的阻锈性能
汤涛1 , 雷俊1 , 祝剑剑2 , 陈步荣1 , 魏无际1
(1. 南京工业大学材料科学与工程学院,南京 210009 ; 2. 南京科润精细化工有限公司,南京 211100)
摘要: 以极化曲线法、失重法和半电池电位法评价了一种新型钢筋阻锈剂的阻锈性能,并采用 EDS 手段表征了
阻锈剂的渗透性能。结果表明,阻锈剂对混凝土中钢筋有阻锈作用,Cl - 含量较低时,阻锈效果明显,缓蚀率达
85 % ;Cl - 含量较高时,阻锈效果不明显。阻锈剂通过涂刷方法能够很快渗透到混凝土内部,到达钢筋周围,对在役
钢筋混凝土管架有很好的防护作用。
关键词: 钢筋混凝土; 阻锈剂; 阻锈性能; 渗透
中图分类号: TG174. 42 文献标识码: A 文章编号: 10052748X(2007) 1220642204
A N TICO RROSION PERFO RMANCE OF A N EW REBA R IN HIBITOR
TANG Ta o1 , L EI Jun1 , Z HU J ian2jian 2 , C HEN Bu2rong1 , WEI Wu2ji1
(1. College of Materials Science a nd Enginee ring , Na njing U nive rsity of Technology , Nanjing 210009 , China ;
2. Na njing Kerun Fine Chemical Co. , L td. , Nanjing 211100 , China)
Abstract : The anticor ro sion perfor ma nce of a ne w reba r inhibitor was evaluate d through the tests of pola rization
curve , weight lo ss and half2cell potential. The per meability of the inhibitor was also characterized with EDS
technique. The results indicated tha t t he inhibitor co uld pr event co rrosion of t he rebar in co ncrete. When the
chloride content wa s low , the efficie ncy of inhibition wa s a s high as 85 % suggesting t hat the eff ect was obvio us ,
while t he antico rrosion eff ect wa s not re ma rkable when t he chloride content was high. The inhibitor pe rme