健康·安全·环境

水性环氧树脂/纳米SiO2复合疏水涂层的制备及性能研究

  • 杨璐璐
展开
  • 天津科技大学化工与材料学院,天津 300457

收稿日期: 2019-04-01

  修回日期: 2019-08-08

  网络出版日期: 2019-09-01

Preparation and Properties of Waterborne Epoxy Resin/Nano-SiO2 Composite Hydrophobic Coatings

  • YANG Lu-Lu
Expand
  • College of Chemical Enginnering and Materials Science,Tianjin University of Science and Technology,Tianjin 300457,China

Received date: 2019-04-01

  Revised date: 2019-08-08

  Online published: 2019-09-01

摘要

用氨基硅油( APDMS)改性水性环氧树脂( EP)得到疏水性的环氧树脂乳液( APDMS-EP);用 1H,1H,2H,2H-全氟辛基三乙氧基硅烷( FAS)与纳米 SiO2反应得到氟改性纳米 SiO2(F-SiO2)。采用不同比例的 F-SiO2与 APDMS-EP进行复配,室温固化制备疏水涂层,并对 F-SiO2的结构进行了表征,研究了 F-SiO2用量对涂层的接触角、铅笔硬度、附着力、热稳定性及耐腐蚀性能的影响。结果表明: APDMS的引入使水性环氧树脂涂层的水接触角从 47.3°提高到 97.7°;加入 F-SiO2后涂层疏水性进一步提高,当加入 15%的 F-SiO2时,涂层对水和丙三醇的接触角分别为 120.3°和 104.5°,F-SiO2的加入也增强了涂层的防腐性能。

本文引用格式

杨璐璐 . 水性环氧树脂/纳米SiO2复合疏水涂层的制备及性能研究[J]. 涂料工业, 2019 , 49(9) : 41 -45 . DOI: 10.12020/j.issn.0253-4312.2019.9.41

Abstract

The hydrophobic epoxy resin emulsion(APDMS-EP) was prepared by modifying waterborne epoxy resin(EP) with amino silicone oil(APDMS). Fluoro-modified nano-SiO2(F-SiO2) was obtained by the reaction of 1H,1H,2H,2H-perfluorooctyltrie-thoxysilane(FAS)with nano-SiO2. Hydrophobic coatings was prepared by curing of APDMS-EP mixed with different contents F-SiO2 at room temperature. The structure of F-SiO2 was characterized by FT-IR,TEM and TG. The effects of F-SiO2 dosage on the contact angle, pencil hardness,adhesion,thermal stability and corrosion resistance of the coating werestudied. The results showed that the water contact angle(WCA)of waterborne epoxy resincoating increased from 47. 3° to 97. 7° by introducing APDMS. Adding F-SiO2 can further improved the coating’s hydrophobicity. When the dosage of F-SiO2 was 15%,the coating’s WCA and glycerol CA were 120. 3° and 104. 5° respectively;SEM indicated that F-SiO2 formed a dual micro-nano rough structure on the coating’s surface. EIS and immersion tests showed that F-SiO2 enhanced the anti-corrosion performance of the coatings.

参考文献

[1]柯志刚,易昌凤,徐祖顺,等.水性环氧树脂的研究进展[J].现代涂料与涂装, 2015, 18(8):17-20
[2]邸道远 .超疏水环氧树脂复合涂层的制备及性能研究[D].大庆:东北石油大学,2016.
[3]廖灵敏,李珍,魏涛,等.水性环氧树脂纳米复合涂层材料制备与性能研究[J].工程质量, 2014, 32(8):9-13
[4]JING,WANG R,ZHANG Z M,et al. Effect of membrane structure of waterborne coatings on the transport process ofcorrosive medium[J].[J].Progress in Organic Coatings, 2018, 124:8-15
[5]石家烽,崔灿灿,王景山,等.水性涂料的研究进展[J].现代涂料与涂装, 2018, 21(1):27-29
[6]吴佳伟,姜爱叶,武建华,等.端羟基氟硅油改性环氧树脂的制备和性能研究[J].中国胶粘剂, 2017, 26(12):34-37
[7]屈孟男,侯琳刚,何金梅,等 .功能化超疏水材料的研究与发展 [J].化学进展, 2016,28(12)1774-1787.
[8]KANGOS,KALIA S,CELLI A,et alSurface modification of inorganic nanoparticlesfor development of organic-inorganic nanocomposites-A review[J].[J].Progress in Polymer Science, 2013, 38:1232-1261
[9]AMMAR S,RAMESH K,VENGADAESVARAN B,et al. Amelioration of anticorrosion and hydrophobic properties ofepoxyPDMS composite coatings containing nano ZnO particles[J].[J].Progress in Organic Coatings, 2016, 92:54-65
[10]WANG P,SUN B,YAO T,et al.A novel dissolution and resolidification method for preparing robust superhydrophobic polystyrenesilica composite[J].Chemical Engineering Journal, 2017, 326(17):1066-1073
[11]MAGANTY S,ROMA M P C,MESCHTER S J,et al.Enhanced mechanical properties of polyurethane composite coatingsthroughnanosilica addition[J].Progress in OrganicCoatings, 2016, 90(16):243-251
[12]WANGZLL,GAO X Y,WEN G,etal. Robust silicon dioxide @ epoxy resin micronanosheet superhydrophobicomnipotent protective coating for applications[J].[J].Colloids and Surfaces A, 2018, 550:9-19
[13]刘迪,吴国民,刘贵峰,等.聚硅氧烷改性水性环氧树脂聚氨酯复合物的制备及其性能研究[J].林产化学与工业, 2017, 27(5):39-44
[14]吴亚辉,张力,肖逸兴,等.水性紫外光固化十三氟辛醇改性环氧树脂的合成与性能[J].电镀与涂饰, 2013, 32(9):65-69
[15]薛珊珊,刘海东,何琦,等.基于改性环氧树脂和二氧化硅粒子的超疏水涂层的制备及其性能研究[J].塑料工业, 2018, 46(8):150-153
[16]CENGIZ U,CANSOY C E,Applicability of Cassie-Baxterequation for superhydrophobic fluoropolymer-silica composite films[J].[J].Applied Surface Science, 2015, 335:99-106
文章导航

/