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[1]侯宝清,宋林林,朱承飞.海洋大气环境中Na2MoO4对丙烯酸聚氨酯涂层老化性能的影响[J].南京工业大学学报(自然科学版),2018,40(02):53-58.[doi:10.3969/j.issn.1671-7627.2018.02.009]
 HOU Baoqing,SONG Linlin,ZHU Chengfei.Effects of Na2MoO4 on aging properties of acrylic polyurethane coating in marine atmosphere environment[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2018,40(02):53-58.[doi:10.3969/j.issn.1671-7627.2018.02.009]
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海洋大气环境中Na2MoO4对丙烯酸聚氨酯涂层老化性能的影响
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
40
期数:
2018年02期
页码:
53-58
栏目:
出版日期:
2018-03-20

文章信息/Info

Title:
Effects of Na2MoO4 on aging properties of acrylic polyurethane coating in marine atmosphere environment
文章编号:
1671-7627(2018)02-0053-06
作者:
侯宝清宋林林朱承飞
南京工业大学 材料科学与工程学院,江苏 南京 210009
Author(s):
HOU BaoqingSONG LinlinZHU Chengfei
College of Materials Science and Engineering,Nanjing Tech UniveRsity,Nanjing 210009,China
关键词:
海洋大气环境 丙烯酸聚氨酯涂层 钼酸钠 老化 电化学阻抗谱(EIS)
Keywords:
marine atmosphere acrylic polyurethane coating sodium molybdate degradation electrochemical impedance spectroscopy(EIS)
分类号:
TG174.41
DOI:
10.3969/j.issn.1671-7627.2018.02.009
文献标志码:
A
摘要:
目前丙烯酸聚氨酯涂层已广泛使用在沿海大气环境中,但易于老化。采用电化学阻抗谱(EIS)技术、数值分析技术,探讨了该环境下添加Na2MoO4对涂层的老化过程的影响。研究发现:当丙烯酸聚氨酯涂层中添加Na2MoO4后在海洋大气环境中使用时,Na2MoO4导致涂层中水分的扩散过程加快,扩散系数D达到6.31×10-10cm2/s; Na2MoO4加入到海洋大气环境中的丙烯酸聚氨酯涂层中能够起到缓蚀作用,添加Na2MoO4的丙烯酸聚氨酯涂层老化时间依然达到360 h,此时涂层电阻只有6.53×104 Ω·cm2
Abstract:
Acrylic polyurethane coating has been widely used in coastal atmospheric environment and is easily prone to aging.The influence of sodium molybdate were studied by electrochemical impedance spectroscopy(EIS)and the numerical value analysis technique during the coating's aging process.Results indicated that when acrylic polyurethane coating with Na2MoO4 was used in marine atmospheric environments,Na2MoO4 could promote the diffusion of water and the water diffusion coefficient(D)for the coating system was improved to 6.31×10-10cm2/s.Meanwhile,Na2MoO4 in acrylic polyurethane coating in marine atmosphere environment could play inhibition.The aging time of acrylic polyurethane coating with adding Na2MoO4 still reached 360 h and at this time the coating resistance was only 6.53×104 Ω·cm2.

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备注/Memo

备注/Memo:
收稿日期:2016-09-26
基金项目:江苏省产学研合作前瞻性联合研究项目(BY2016005-04)
作者简介:侯宝清(1991—),男,山东济宁人,硕士,主要研究方向为金属腐蚀与防护; 朱承飞(联系人),副教授,E-mail:zhucf@njtech.edu.cn.
引用本文:侯宝清,宋林林,朱承飞.海洋大气环境中Na2MoO4对丙烯酸聚氨酯涂层老化性能的影响[J].南京工业大学学报(自然科学版),2018,40(2):53-58..
更新日期/Last Update: 2018-03-30