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SiO 2 reinforced HDPE hybrid materials obtained by the sol–gel method
Author(s) -
Ma Wenzhong,
Gong Fanghong,
Liu Chunlin,
Tao Guoliang,
Xu Jianping,
Jiang Bibiao
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.39891
Subject(s) - high density polyethylene , thermogravimetric analysis , materials science , thermal stability , fourier transform infrared spectroscopy , ultimate tensile strength , composite material , polyethylene , hybrid material , x ray photoelectron spectroscopy , chemical engineering , engineering , nanotechnology
Novel high density polyethylene (HDPE)/SiO 2 hybrid materials were prepared by the sol–gel process using tetraethoxysilane (TEOS). HDPE and synthesized HDPE‐ g ‐vinyl trimethoxysilane (VTMS) through melt grafting method was used as the raw material. The structure and thermal, mechanical properties of hybrid materials were investigated by Fourier transform infrared (FTIR) spectroscopy, X‐ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), simultaneous thermogravimetric (TG), differential thermal analysis (DTA), and tensile tests, respectively. Silica phase in the HDPE‐ g ‐VTMS hybrids showed a network structure and nano‐scale size. The covalent bonds between organic and inorganic phases were introduced by the HDPE‐ g ‐VTMS bearing trimethoxysilyl groups, which underwent hydrolytic polycondensation with TEOS. The thermal stability and mechanical properties of HDPE‐ g ‐VTMS hybrids were obviously improved by embedded silica networks. It was found that the silica content in the HDPE‐ g ‐VTMS hybrid material was linearly increased with the TEOS dosage. The formation of the HDPE ‐g ‐VTMS hybrid was beneficial for enhanced mechanical strength and thermal stability, in comparison with the neat HDPE. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2014 , 131 , 39891.