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Thermal and mechanical evaluation of cyanate ester resin catalyzed by nonylphenol and stannous octoate
Author(s) -
Liu Ting,
Li Jinhuan,
Xiao Jun,
Tian Wenping
Publication year - 2016
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.43959
Subject(s) - cyanate ester , materials science , differential scanning calorimetry , absorption of water , curing (chemistry) , ultimate tensile strength , catalysis , flexural strength , thermal stability , glass transition , plasticizer , composite material , nonylphenol , nuclear chemistry , polymer chemistry , chemical engineering , chemistry , organic chemistry , polymer , epoxy , thermodynamics , physics , environmental chemistry , engineering
Nonylphenol (NP), stannous octoate [Sn(Otc) 2 ], and a mixture of NP and Sn(Otc) 2 were employed for catalyzing cyanate ester resin. The curing reaction was studied by differential scanning calorimetry. A water‐absorption test at 85 °C was utilized to study the resistance to warm and humid conditions. The thermal properties were evaluated through measuring thermal weight loss and the glass‐transition temperature ( T g ), and the mechanical properties were evaluated through three‐point bending tests and tensile tests. The results show that the mixture of NP and Sn(Otc) 2 exhibits the best catalytic efficiency by decreasing the exothermic peak temperature by almost 148 °C. The mixture of NP and Sn(Otc) 2 has unfavorable effects on the thermal stability. Nevertheless, all catalyst systems have good water‐absorption resistance. The mechanical investigation confirms that the tensile properties show a little reduction that is due to the plasticization of the catalyst, while the excellent flexural properties are maintained. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43959.