The super-hydrophobic IR-reflectivity TiO2coated hollow glass microspheres synthesized by soft-chemistry method

Yan Hu, Yuanhao Wang, Zhenguo An, Jingjie Zhang, Hongxing Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)

Abstract

The super-hydrophobic and IR-reflectivity hollow glass microspheres (HGM) was synthesized by being coated with anatase TiO2and a super-hydrophobic material. The super-hydrophobic self-cleaning property prolong the life time of the IR reflectivity. TBT and PFOTES were firstly applied and hydrolyzed on HGM and then underwent hydrothermal reaction to synthesis anatase TiO2film. For comparison, the PFOTES/TiO2mutual-coated HGM (MCHGM), PFOTES single-coated HGM (F-SCHGM) and TiO2single-coated HGM (Ti-SCHGM) were synthesized as well. The MCHGM had bigger contact angle 153, but smaller sliding angle (16°) than F-SCHGM (contact angle: 141.2°; sliding angle: 67°). Ti-SCHGM and MCHGM both showed similar IR reflectivity with ca. 5.8% increase compared with original HGM and F-SCHGM. For the thermal conductivity, coefficients of F-SCHGM (0.0479 W/(m K)) was basically equal to that of the original HGM (0.0475 W/(m K)). Negligible difference was found between the thermal conductivity coefficients of MCHGM-coated HGM (0.0543 W/(m K)) and Ti-SCHGM (0.0546 W/(m K)).
Original languageEnglish
Pages (from-to)43-49
Number of pages7
JournalJournal of Physics and Chemistry of Solids
Volume98
DOIs
Publication statusPublished - 1 Nov 2016

Keywords

  • Hollow glass microspheres
  • IR reflectivity
  • Super-hydrophobicity
  • TiO 2

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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