Premium
Preparation and properties of cardanol‐based polybenzoxazine/SiO 2 hybrids by sol‐gel technique
Author(s) -
Li Shengfang,
Zou Tao,
Feng Li,
Liu Xianli,
Tao Min
Publication year - 2012
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.38607
Subject(s) - cardanol , thermal stability , materials science , monomer , chemical engineering , yield (engineering) , polymer chemistry , wetting , nuclear chemistry , polymer , composite material , chemistry , epoxy , engineering
A new cardanol‐based benzoxazine monomer containing a hydroxyl group (CBZ) was synthesized and characterized by FT‐IR and 1 H NMR spectroscopy. The formation mechanism of cardanol‐based polybenzoxazine/SiO 2 hybrids from CBZ and tetraethoxysilane (TEOS) by sol‐gel technique was invested by FT‐IR analysis. FT‐IR and SEM confirmed that there were many SiO 2 particles formed and embedded in the cardanol‐based polybenzoxazine. A phase separation occurred when the ratio (wt) of TEOS to CBZ was not less than 3 : 5. TGA results illuminated the thermal stability and char yield of cardanol‐based polybenzoxazine could be enhanced due to the formation of SiO 2 particles in the polybenzoxazine matrix. Incorporation of SiO 2 could improve the surface de‐wetting and anti‐ultraviolet properties of the films. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom