改性SiO2 气凝胶聚氨酯复合涂层的制备及耐蚀性能研究
李丹鸿, 杨腾逊, 孙天翔, 李兴霖冒, 马程成, 张玥, 陈守刚

Preparation and Anti-corrosion Properties of Silica Aerogel-modified Polyurethane Composite Coatings
LI Danhong, YANG Tengxun, SUN Tianxiang, LI Xinglinmao, MA Chengcheng, ZHANG Yue, CHEN Shougang
表1 浸泡70 d后涂层的EIS拟合电路参数
Table 1 Fitting parameters of EIS curves of various coatings after immersion for 70 d
Sample

Rc

Ω·cm2

CPE c

Cc

F·cm-2

Rct

Ω·cm2

CPEdl

Cdl

F·cm-2

Yc / F·cm-2·S n-1ncYdl / F·cm-2·S n-1ndl
01.19 × 1032.82 × 10-70.753.09 × 10-88.89 × 1037.50 × 10-240.021.29 × 10-27
1% SiO28.16 × 1048.84 × 10-90.957.35 × 10-92.06 × 1066.87 × 10-80.522.1 × 10-8
1% SiO2 M1.63 × 1071.05 × 10-90.991.05 × 10-94.29 × 1075.95 × 10-90.655.11 × 10-9