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旋涂法快速制备双层二元胶体微球有序薄膜

刘忍肖 陈胜利 董鹏

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旋涂法快速制备双层二元胶体微球有序薄膜

刘忍肖, 陈胜利, 董鹏

Rapid fabrication of crystalline films with double layers and dual members by spin-coating method

Liu Ren-Xiao, Chen Sheng-Li, Dong Peng
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  • 以较大粒径的聚苯乙烯或SiO2胶体微球的单层有序薄膜作基膜,较小粒径的SiO2微球作第二层,用分步旋涂法快速制备了二元双层胶体微球复合有序薄膜.膜中小粒径微球与大粒径微球的粒径比γ=020—056,大粒径与小粒径微球的排列方式可表示为LSx(x=1,2,…,13).旋涂速度、旋涂时间、微球悬浮介质的黏度、悬浮液中微球的数密度、旋涂衬底的可润湿性等因素均会影响旋涂组装胶粒薄膜的质量.在旋涂衬底能够被胶体微球悬浮介质完全润湿的前提下,适宜的胶体微球数密度、旋涂速度、旋涂时间是旋涂组装有序薄膜的必要条件.
    Ordered colloidal particle films with double layers and dual members could be prepared by stepbystep spincoating method. Monolayer film of larger sized PS or SiO2 colloids was utilized as template to selfassemble second layer of SiO2 colloidal particles with smaller diameter. The size ratio γ of smaller and larger colloidal particles was 0.20—0.56 in the composite films. Larger (L) and smaller (S) dual member colloidal particles formed composite crystalline doublelayer films with multifarious arraymodes, whose structures could be expressed as LSx (here, L represents larger sized particles, S represents smaller colloidal particles, and x represents the stoichiometry of larger and smaller colloidal particles), and x=1, 2, …, 13. The performance of composite colloidal films were influenced mainly by several factors, including spincoating velocity, spincoating time, viscosity of suspension medium, number density of colloidal suspension, and the wetting properties of substrates, etc.. On the prerequisite of complete wetting between colloidal suspension and substrate, appropriate number density of colloidal suspension, velocity and time of spincoating were the necessary conditions for ordered selfassembling to crystalline film of colloidal particles by spincoating method.
    • 基金项目: 国家自然科学基金(批准号:50702077)资助的课题.
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  • 文章访问数:  5225
  • PDF下载量:  2491
  • 被引次数: 0
出版历程
  • 收稿日期:  2008-03-05
  • 修回日期:  2008-05-08
  • 刊出日期:  2009-02-05

旋涂法快速制备双层二元胶体微球有序薄膜

  • 1. 中国石油大学(北京)重质油国家重点实验室,北京 102249
    基金项目: 

    国家自然科学基金(批准号:50702077)资助的课题.

摘要: 以较大粒径的聚苯乙烯或SiO2胶体微球的单层有序薄膜作基膜,较小粒径的SiO2微球作第二层,用分步旋涂法快速制备了二元双层胶体微球复合有序薄膜.膜中小粒径微球与大粒径微球的粒径比γ=020—056,大粒径与小粒径微球的排列方式可表示为LSx(x=1,2,…,13).旋涂速度、旋涂时间、微球悬浮介质的黏度、悬浮液中微球的数密度、旋涂衬底的可润湿性等因素均会影响旋涂组装胶粒薄膜的质量.在旋涂衬底能够被胶体微球悬浮介质完全润湿的前提下,适宜的胶体微球数密度、旋涂速度、旋涂时间是旋涂组装有序薄膜的必要条件.

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