Thermally Conductive Anticorrosive Epoxy Nanocomposites with Tannic Acid-Modified Boron Nitride Nanosheets

被引:65
|
作者
Pan, Duo [1 ,2 ]
Zhang, Xiaodong [1 ,2 ]
Yang, Gui [1 ,2 ]
Shang, Ying [1 ,2 ]
Su, Fengmei [1 ,2 ]
Hu, Qian [3 ]
Patil, Rahul Rangrao [3 ,4 ]
Liu, Hu [1 ,2 ]
Liu, Chuntai [1 ,2 ]
Guo, Zhanhu [3 ]
机构
[1] Zhengzhou Univ, Minist Educ, Key Lab Mat Proc & Mold, Zhengzhou 450002, Henan, Peoples R China
[2] Zhengzhou Univ, Natl Engn Res Ctr Adv Polymer Proc Technol, Zhengzhou 450002, Henan, Peoples R China
[3] Univ Tennessee, Integrated Composites Lab ICL, Dept Chem & Biomol Engn, Knoxville, TN 37996 USA
[4] Agr Solut Amer APT, BASF Beaumont Site, Beaumont, TX 77705 USA
基金
中国国家自然科学基金;
关键词
MECHANICAL-PROPERTIES; GRAPHENE OXIDE; CORROSION-RESISTANCE; NANO-FILLERS; COMPOSITE COATINGS; QUANTUM DOTS; MILD-STEEL; H-BN; FABRICATION; PERFORMANCE;
D O I
10.1021/acs.iecr.0c04510
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Boron nitride nanosheets (BNNSs) were synthe-sized by the classical chemical vapor deposition (CVD) method and modified by tannic acid (TA) (named as M-BNNSs). M-BNNSs have greatly improved the thermal conductivity (0.45 W/(m.K)) and mechanical tensile strength (15.10 MPa) of epoxy resin (EP). More importantly, the EP composite coating with an appropriate amount of M-BNNS not only has an excellent anticorrosion effect (the I-corr of 10%M-BNNS@EP is 8.053 X 10(-7) A/cm(2) after immersed in 3.5 wt % NaCl solution for 30 min) on the metal substrates but also has a good anticorrosion stability. The impedance modulus (vertical bar Z vertical bar(0.01)) of the 10%M-BNNS@EP coating is higher than that of the neat EP coating and other composite coating systems during 120 h of immersion. Polarization curve (Tafel) and electrochemical impedance spectroscopy (EIS) tests reveal that the 10%M-BNNS@EP coating not only has an excellent anticorrosion effect on the metal substrates but also has a good anticorrosion stability after being immersed in 3.5 wt % NaCl aqueous solution for 120 h.
引用
收藏
页码:20371 / 20381
页数:11
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