• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>JCT research >UV-waterborne polyurethane-acrylate nanocomposite coatings containing alumina and silica nanoparticles for wood: mechanical, optical, and thermal properties assessment
【24h】

UV-waterborne polyurethane-acrylate nanocomposite coatings containing alumina and silica nanoparticles for wood: mechanical, optical, and thermal properties assessment

机译：用于木材的包含氧化铝和二氧化硅纳米粒子的UV水性聚氨酯-丙烯酸酯纳米复合涂料：机械，光学和热性能评估

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The effect of alumina and silica nanoparticles on mechanical, optical, and thermal properties of UV-waterborne nanocomposite coatings was investigated. The addition of nanoalumina and nanosilica was shown to decrease the hardness because of nanopar-ticle aggregation. In comparison to the neat coating and despite the presence of aggregates, the scratch resistance of nanocomposite coatings was significantly improved. As expected, the gloss of UV-waterborne coatings was reduced following the addition of nanoparticles due to an increase of the surface roughness. Alumina and silica nanoparticles were found to enhance the glass transition temperature of PUA nanocomposite coatings by hindering the mobility of macromolecular chains at the interface around the nanoparticles. Finally, the interest and efficiency of grafting trialkoxysilanes was demonstrated with the study of nanosilica behavior. Not only was the dispersion of nanosilica enhanced following trialkoxysilanes grafting onto silica nanoparticles, but also the scratch resistance and the adhesion of UV-waterborne coatings containing nanosilica markedly increased even with 1 wt% content. Silica which is recommended in the wooden furniture and kitchen cabinet manufacturing industry as nano-reinforcement provides improved properties well suited in surface coating applications to efficiently protect surface of wood substrates.
机译：研究了氧化铝和二氧化硅纳米粒子对UV水性纳米复合涂料的机械，光学和热性能的影响。由于纳米粒子的聚集，显示出添加纳米氧化铝和纳米二氧化硅会降低硬度。与纯净的涂层相比，尽管存在聚集体，纳米复合材料涂层的耐划伤性却得到了显着提高。如所预期的，由于表面粗糙度的增加，在添加纳米颗粒之后，水性UV涂料的光泽度降低。发现氧化铝和二氧化硅纳米颗粒通过阻碍在纳米颗粒周围的界面处的大分子链的迁移性来提高PUA纳米复合涂层的玻璃化转变温度。最后，通过纳米二氧化硅行为的研究证明了接枝三烷氧基硅烷的兴趣和效率。三烷氧基硅烷接枝到二氧化硅纳米颗粒上后，不仅纳米二氧化硅的分散性得到增强，而且即使含量为1 wt％，耐划伤性和含有纳米二氧化硅的UV水性涂料的附着力也显着提高。二氧化硅在木制家具和厨柜制造行业中被推荐使用，因为纳米增强剂可提供改善的性能，非常适合表面涂层应用，以有效保护木质基材的表面。

著录项

  • 来源
    《JCT research》 |2011年第2期|p.211-221|共11页
  • 作者

    Caroline Sow; Bernard Riedl; Pierre Blanchet;

  • 作者单位

    Departement des sciences du bois et de la foret, Centre de recherche sur le bois, Universite Laval,Quebec, QC G1V 0A6, Canada;

    Departement des sciences du bois et de la foret, Centre de recherche sur le bois, Universite Laval,Quebec, QC G1V 0A6, Canada;

    Departement des sciences du bois et de la foret, Centre de recherche sur le bois, Universite Laval,Quebec, QC G1V 0A6, Canada ,FPInnovations, Nanotechnologies for Wood Products,Quebec, QC G1P 4R4, Canada;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    UV-waterborne; nanocomposite; wood coatings; alumina; surface modified silica;

    机译：紫外线水性纳米复合材料木器涂料;氧化铝表面改性二氧化硅;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号