不同粒径PANI/SiO2对环氧涂层防腐性能的影响

doi:10.11896/cldb.20090290

材料导报

2021, Vol. 35

Issue (24): 24182-24188 https://doi.org/10.11896/cldb.20090290

高分子与聚合物基复合材料

不同粒径PANI/SiO₂对环氧涂层防腐性能的影响

冯江波¹, 王景平¹, 苑慧莹², 任秦博¹, 曹金安¹, 王学川³

1 陕西科技大学化学与化工学院,西安 710021
2 中国石油长庆油田分公司油气工艺研究院,西安 710018
3 陕西科技大学轻工科学与工程学院,西安 710021

Effect of PANI/SiO₂ Particle Size on Anti-corrosion Properties of Epoxy Coating

FENG Jiangbo¹, WANG Jingping¹, YUAN Huiying², REN Qinbo¹, CAO Jin'an¹, WANG Xuechuan³

1 College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
2 Oil and Gas Technology Research Institute of Changqing Oilfield Company, Xi'an 710018, China
3 College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China

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摘要采用原位聚合,在不同粒径的SiO₂表面包覆了聚苯胺(PANI),以制备PANI/SiO₂颗粒。包覆后的SiO₂颗粒由白色变为墨绿色,红外光谱的研究表明,PANI已经包覆到SiO₂颗粒表面。采用热重研究PANI的包覆率,结果表明包覆率随着SiO₂粒径的减小而增加,1 250目SiO₂颗粒PANI的包覆率达到1.76%(质量分数,下同)。将PANI/SiO₂颗粒添加到环氧树脂涂层中制备防腐涂层,研究发现,SiO₂的粒径对涂层的力学性能和防腐性能有至关重要的影响。随添加颗粒粒径的增加,涂层的附着力、耐冲击性以及耐磨性会进一步增加,而涂层硬度减小。添加400目PANI/SiO₂颗粒所制备的环氧涂层,结构致密,将其浸泡在3.5% NaCl水溶液中30 d,涂层依然能够发挥很好的防腐作用。

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	冯江波
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	王学川

关键词: 聚苯胺二氧化硅包覆防腐粒径环氧涂层

Abstract: Silicon dioxide (SiO₂) particles with different sizes were coated by polyaniline (PANI) using in-situ polymerization and then the appearance of SiO₂ changed from white to dark green. The results of FTIR showed that PANI had coated on the surface of SiO₂ particles. The coating rate of PANI was studied by thermogravimetry and the results showed that the coating rate increased with the decrease of SiO₂ particle size. The PANI coating rate of 1 250 meshes SiO₂ particles reached 1.76% (mass fraction, the same below). Anti-corrosion coating was prepared by adding PANI/SiO₂ particles into the epoxy resin matrix. It was found that the particle size of PANI/SiO₂ has an important influence on the mechanical and anti-corrosion properties of the coating. With the increase of particle size, the adhesion, impact resistance and wear resistance of the coating increased but the hardness of the coating decreased. The structure of coating by adding 400 meshes PANI/SiO₂ particles was compact and this coating still showed good anti-corrosion properties immersing in 3.5% NaCl solution after 30 days, which should be related to the PANI passivation to metal.

Key words: polyaniline(PANI) silicon dioxide coating anti-corrosion particle size epoxy coating

出版日期: 2021-12-25 发布日期: 2021-12-27

ZTFLH:

TB304

基金资助: 西安市科技计划项目(2017068CG/R C031〈SXKD007〉);陕西科技大学博士启动基金(BJ16-10)

通讯作者: Wangjingping@sust.edu.cn; Wangxc@sust.edu.cn.

作者简介: 冯江波,2017年6月毕业于商洛学院,获得工学学士学位,现为陕西科技大学化学与化工学院硕士研究生,在王景平副教授的指导下进行研究,目前主要研究领域为重度防腐蚀涂层。王景平,陕西科技大学化学与化工学院副教授、硕士研究生导师,1997年7月本科毕业于大连工业大学,2011年11月在西安交通大学电信学院取得电子科学与技术博士学位,2012年至2013年在香港理工大学进行博士后工作,主要从事高分子材料的成型加工、储能高分子材料以及电化学污水处理的研究工作。王学川,陕西科技大学副校长,二级教授,轻工技术与工程学科带头人,博士研究生导师,兼任国家教育部高等学校轻工类专业教学指导委员会副主任委员,中国皮革协会技术委员会副主任,四川大学制革清洁技术国家重点实验室学术委员会委员,中国皮革协会科技委员会副主任,国家自然科学经济委员会项目评审专家,中国工程院表面活性剂开发促进会理事、全国皮革工业标准委员会制革分委员会委员。“中国皮革”编审和国内外有关专业期刊的编委、审稿人。入选国家科技部等8部委“新世纪百千万人才工程国家级人选”,享受国务院政府特殊津贴,获国家技术发明二等奖1项,国家级教学成果二等奖1项,省部级科技奖励7项,陕西省教学成果特等奖、一等奖各1项。

引用本文:

冯江波, 王景平, 苑慧莹, 任秦博, 曹金安, 王学川. 不同粒径PANI/SiO₂对环氧涂层防腐性能的影响[J]. 材料导报, 2021, 35(24): 24182-24188.
FENG Jiangbo, WANG Jingping, YUAN Huiying, REN Qinbo, CAO Jin'an, WANG Xuechuan. Effect of PANI/SiO₂ Particle Size on Anti-corrosion Properties of Epoxy Coating. Materials Reports, 2021, 35(24): 24182-24188.

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http://www.mater-rep.com/CN/10.11896/cldb.20090290 或 http://www.mater-rep.com/CN/Y2021/V35/I24/24182

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