河北大学学报(自然科学版) ›› 2019, Vol. 39 ›› Issue (4): 386-394.DOI: 10.3969/j.issn.1000-1565.2019.04.009

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改性环氧树脂超疏水涂层的制备与研究

吕学超1,刘华1,段沙沙1,钱建华2,刘坐镇1,2   

  • 收稿日期:2018-09-13 出版日期:2019-07-25 发布日期:2019-07-25
  • 通讯作者: 刘坐镇(1965—),男,河南新密人,华东理工大学教授,主要从事防腐蚀树脂、乙烯基树脂、离子交换树脂的研究. E-mail: lzz@ecust.edu.cn
  • 作者简介:吕学超(1991—),男,河南驻马店人,华东理工大学在读硕士研究生,主要从事功能性涂料、紫外光固化涂料的研究. E-mail: xuechao_lv@163.com
  • 基金资助:
    上海市科学技术委员会科研计划项目(16DZ1121403;17511102803)

Preparation and study of modified epoxy resin super-hydrophobic coatings

LÜ Xuechao1, LIU Hua1, DUAN Shasha1, QIAN Jianhua2, LIU Zuozhen1,2   

  1. 1.Key Laboratory for Special Functional Polymers and Related Technology of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China; 2.Shanghai Engineering, Research Center Anticorrosion Materials, Sino Polymer Co.Ltd., Shanghai 200241, China
  • Received:2018-09-13 Online:2019-07-25 Published:2019-07-25

摘要: 为简化超疏水涂层的制备过程,提高耐磨性,以端羟基聚二甲基硅氧烷(HTPDMS)、微/纳米二氧化硅分2步改性双酚A型环氧树脂,涂层的固化过程采用紫外光固化技术,然后对涂层的表面性能进行了一系列的测试表征.探究了HTPDMS用量和二氧化硅用量对涂层接触角和其他性能的影响.结果表明,当HTPDMS添加量为环氧树脂质量的80%时,环氧树脂可获得最好的改性效果.当改性环氧树脂与微/纳米二氧化硅的质量比为10∶1.5∶1.5时,采用复配型光引发剂,紫外汞灯照射10 min,即可得到接触角>154°滚动角<1°的超疏水涂层.

关键词: 环氧树脂, 端羟基聚二甲基硅氧烷, 微/纳米二氧化硅, 紫外光固化, 超疏水

Abstract: To simplify the preparation process of super-hydrophobic coatings and improve its wear resistance, the bisphenol A epoxy resin is modified in two steps with hydroxyl-terminated polydimethylsiloxane(HTPDMS)and Micro/Nano silica.UV curing technology was used to cure the coatings.The surface properties of the coatings were characterized by static contact angle measurement, field emission scanning electron micro-scope(FESEM)and atomic force microscope(AFM).The effect of the amount of HTPDMS and silica on the contact angle and other properties of the cured coating was investigated.The results show that when the amount of HTPDMS added is 80% of the epoxy resin, the best modification effect on the epoxy resin cam be obtained.When the mass ratio of the modified epoxy resin to the Micro/Nano silica is 10∶1.5∶1.5, and a compound photo initiator and a UV mercury lamp are irradiated for 10 minutes, the super-hydrophobic coating can be obtained, with contact angle(CA)of >154° and rolling angle(RA)of <1°.

Key words: epoxy resin, HTPDMS, micro/nano-silica, ultraviolet curing, super-hydrophobicity

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