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Biobased cyanate ester composites with epoxidized soybean oil and in situ generated nano‐silica
Author(s) -
Zhan Guozhu,
Tang Xiaolin,
Yu Yingfeng,
Li Shanjun
Publication year - 2011
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.21842
Subject(s) - materials science , cyanate ester , curing (chemistry) , nanocomposite , differential scanning calorimetry , thermogravimetric analysis , epoxidized soybean oil , dynamic mechanical analysis , composite material , scanning electron microscope , rheometry , isothermal process , heat deflection temperature , soybean oil , ultimate tensile strength , chemical engineering , polymer , izod impact strength test , organic chemistry , epoxy , chemistry , raw material , food science , physics , thermodynamics , engineering
Biobased cyanate ester (CE) nanocomposites have been prepared from renewable resource, epoxidized soybean oil (ESO) and in situ generated nano‐silica via sol–gel process. The isothermal curing process was investigated by differential scanning calorimetry (DSC) and rheometry. The results indicate that the incorporation of silica accelerates the reaction at the beginning stage of curing process but descends the final isothermal curing conversion. The morphological study of nanocomposites by scanning electron microscope and transmission electron microscope suggests that the silica exists in the forms of both nanoparticles and silica networks, while the diameter of ESO‐rich phase diminished with the increase of silica loading. In addition, the thermal–physical and mechanical properties were evaluated by dynamic mechanical analysis, thermogravimetric analysis, and tensile mechanical test. The biobased CE nanocomposites show effectively improved properties compared to the systems without nano‐silica. POLYM. ENG. SCI., 2011. © 2010 Society of Plastics Engineers.