کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1251528 | 970916 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cure Kinetics of DGEBA with Hyperbranched Poly (3-hydroxyphenyl) Phosphate as Curing Agent Studied by Non-isothermal DSC1
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Cure Kinetics of DGEBA with Hyperbranched Poly (3-hydroxyphenyl) Phosphate as Curing Agent Studied by Non-isothermal DSC1 Cure Kinetics of DGEBA with Hyperbranched Poly (3-hydroxyphenyl) Phosphate as Curing Agent Studied by Non-isothermal DSC1](/preview/png/1251528.png)
چکیده انگلیسی
The cure kinetics of diglycidyl ether of bisphenol A (DGEBA) with hyperbranched poly(3-hydroxyphenyl) phosphate(HHPP) as the curing agent was investigated by means of non-isothermal differential scanning calorimetry (DSC) at various heating rates. The results were compared with the corresponding results by using 1,3-dihydroxybenzene(DHB) as a model compound. The results show that HHPP can enhance the cure reaction of DGEBA, resulting in the decrease of the peak temperature of the curing curve as well as the decrease of the activation energy because of the flexible PO groups in the backbone of HHPP. However, both the activation energy of the cured polymer and the peak temperature of the curing curve are increased with DHB as a curing agent. The cure kinetics of the DGEBA/HHPA system was calculated by using the isoconversional method given by Málek. It was found that the two-parameter autocatalytic model (Å esták-Berggren equation) is the most adequate one to describe the cure kinetics of the studied system at various heating rates. The obtained non-isothermal DSC curves from the experimental data show the results being accordant with those theoretically calculated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Research in Chinese Universities - Volume 22, Issue 1, January 2006, Pages 118-122
Journal: Chemical Research in Chinese Universities - Volume 22, Issue 1, January 2006, Pages 118-122
نویسندگان
Liang YAO, Jing DENG, Bao-jun QU, Wen-fang SHI,