کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5191478 | 1381232 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of nano-sized carborundum particles and amino silane coupling agent on the cure reaction kinetics of DGEBA/EMI-2,4 system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
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چکیده انگلیسی
The influence of nano-sized carborundum (nano-SiC) particles and amino silane coupling agent on the curing kinetics of bisphenol-A glycidol ether epoxy resin (DGEBA) initiated with 2-ethyl-4-methylimidazole (EMI-2,4) was studied by means of non-isothermal differential scanning calorimetry (DSC). Besides decreasing the heat of reaction ÎH, the presence of nano-SiC particles results in delayed cure reactions, which is also manifested by the increased values of exothermic peak temperature Tp and cure reaction activation energy E of the filled systems. Meanwhile, the amino silane coupling agent could increase ÎH, and decrease slightly the degree of delayed cure reactions caused by nano-SiC particles, and thereby decreasing Tp of the filled systems. The presence of nano-SiC particles prevents from the occurrence of vitrification, so does the amino silane coupling agent when the nano-SiC particle content is low (â²15Â wt%). As the nano-SiC particle content is high (â³15Â wt%), the presence of amino silane coupling agent promotes the occurrence of vitrification. Besides E, the presence of nano-SiC particles could increase the overall order of reaction m+n and the frequency factor A, meanwhile, the amino silane coupling agent decreases these three parameters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 46, Issue 16, 25 July 2005, Pages 6216-6225
Journal: Polymer - Volume 46, Issue 16, 25 July 2005, Pages 6216-6225
نویسندگان
Tianle Zhou, Mingyuan Gu, Yanping Jin, Junxiang Wang,