东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (3): 388-391.DOI: 10.12068/j.issn.1005-3026.2014.03.019

• 材料与冶金 • 上一篇    下一篇

紫外光固化无机-有机复合涂层的制备与性能研究

刘风国，但宝华，薛向欣，杨合   

  1. (东北大学 材料与冶金学院， 辽宁 沈阳110819)
  • 收稿日期:2013-06-19 修回日期:2013-06-19 出版日期:2014-03-15 发布日期:2013-11-22
  • 通讯作者: 刘风国
  • 作者简介:刘风国(1985-)，男，内蒙古赤峰人，东北大学博士研究生；薛向欣(1954-)，男，辽宁沈阳人，东北大学教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(51074053)；中央高校基本科研业务费专项资金资助项目(N090602012)；中华环保基金会辽宁代表处“123工程”资助项目(CEPF2010-123-1-2).

Preparation and Properties of UV Curable InorganicOrganic Composite Coatings

LIU Fengguo， DAN Baohua， XUE Xiangxin， YANG He   

  1. School of Materials & Metallurgy， Northeastern University， Shenyang 110819， China.
  • Received:2013-06-19 Revised:2013-06-19 Online:2014-03-15 Published:2013-11-22
  • Contact: XUE Xiangxin
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摘要： 采用共混法制备了基于环氧丙烯酸酯(EA)的含纳米SiO2粒子的无机-有机紫外光固化复合涂层，并对其结构、热稳定性和物理性能进行了检测.结果表明，纳米SiO2粒子在涂层内部形成了含Si—O—Si的交联网络结构，这种结构有助于改善涂层的热稳定性.SiO2的质量分数为5%时，复合涂层的热稳定性最高.随着SiO2添加量的增加，复合涂层的光泽度降低.加入适量的纳米SiO2粒子可以提高涂层的硬度，当添加量为3%~5%时，复合涂层的铅笔硬度可以达到3H.

关键词: 紫外光固化涂层, 复合涂层, 环氧丙烯酸酯, SiO2纳米粒子, 热稳定性

Abstract: UV curable inorganicorganic composite coatings containing SiO2 nanoparticles based on the epoxy acrylate (EA) were prepared by the blending method. The structure， thermal stability and physical properties of the composite coatings were investigated. The results indicated that Si—O—Si crosslinked network structures are generated in the coatings due to the incorporation of SiO2 nanoparticles， which contributed to improve the thermal stability of the coatings. The composite coating with 5% mass fraction of SiO2 nanoparticles exhibits the most excellent thermal stability. With the increase of the content of SiO2， the gloss of the coatings decreases. Moreover， the reasonable amounts of SiO2 addition can improve the hardness of the coatings. When the mass fraction of SiO2 is 3%~5%， the composite coating exhibits 3H pencil hardness.

Key words: UV curable coating, composite coating, epoxy acrylate, silica nanoparticles, thermal stability

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