无机材料学报 ›› 2017, Vol. 32 ›› Issue (6): 581-586.DOI: 10.15541/jim20160488

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中空TiO2微球的制备及其对聚丙烯酸酯薄膜保温性能的影响

鲍 艳, 康巧玲   

  1. (陕西科技大学 轻工科学与工程学院, 西安 710021)
  • 收稿日期:2016-08-29 修回日期:2016-10-14 出版日期:2017-06-20 网络出版日期:2017-05-27
  • 基金资助:
    新世纪优秀人才支持计划(NCET-13-0885);国家自然科学基金(21376145);陕西科技大学科研创新团队项目(TD12-03)

Fabrication of Hollow TiO2 Spheres and Their Effect on Thermal Insulation Property of Polyacrylate Film

BAO Yan, KANG Qiao-Ling   

  1. (College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China)
  • Received:2016-08-29 Revised:2016-10-14 Published:2017-06-20 Online:2017-05-27
  • Supported by:
    Program for New Century Excellent Talents in University (NCET-13-0885);National Natural Science Foundation of China (21376145);Scientific Research Group of Shaanxi University of Science and Technology (TD12-03)

摘要:

以阳离子PS微球为模板, 钛酸四丁酯为钛源, 氨水为催化剂制备中空TiO2微球, 通过物理共混法将中空TiO2微球引入到聚丙烯酸酯薄膜中, 考察了中空TiO2微球的空心粒径及用量对复合薄膜光反射性、导热系数及力学性能的影响。结果表明: 中空TiO2微球的引入可显著提升聚丙烯酸酯薄膜的各项性能, 中空TiO2微球的空心粒径和用量对复合薄膜的性能有不同程度的影响, 随着中空TiO2微球空心粒径和用量的增加, 复合薄膜的性能基本呈现先提升后降低的趋势, 其中当中空TiO2微球空心粒径为300 nm、用量为1%时, 所制备的复合薄膜保温性能和力学性能最优。

关键词: 中空二氧化钛微球, 聚丙烯酸酯, 复合薄膜, 保温性能, 力学性能

Abstract:

Hollow TiO2 microspheres were fabricated with PS as template, tetrabutyl titanate as titanium resource and ammonium as catalyst. Then, hollow TiO2 microspheres were introduced into polyacrylate emulsion by physical blending method. The effect of hollow size and dosage of hollow TiO2 microspheres on light reflection, thermal conductivity and mechanical property of composite film were investigated. The results show that hollow TiO2 microspheres can significantly improve the properties of polyacrylate film. The hollow size and dosage of hollow TiO2 microspheres have different degree influence on properties of composite film. The properties of composite film firstly increase and then decrease with increasing of hollow size and dosage of hollow TiO2 microspheres. When the hollow diameter and the dosage of hollow TiO2 microspheres is 300 nm and 1%, respectively, the thermal insulation properties and mechanical properties of the composite membrane are optimal.

Key words: Hollow TiO2 spheres, polyacrylate, composite film, thermal insulation, mechanical property

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