کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7824469 | 1502920 | 2018 | 35 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chemorheological behaviors of TDE-85 toughened by low viscosity liquid epoxy for RTM process
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Chemorheological behaviors of TDE-85 toughened by low viscosity liquid epoxy for RTM process Chemorheological behaviors of TDE-85 toughened by low viscosity liquid epoxy for RTM process](/preview/png/7824469.png)
چکیده انگلیسی
In this study, 1,4-cyclohexanedimethanol diglycidyl ether (EP-1) has been synthesized via a two-step process to toughen and lower the viscosity of TDE-85 epoxy first time and suitable for the resin transfer molding (RTM) process. Chemical structure of EP-1 and the reactivity, rheological and mechanical properties of TDE-85/MeTHPA/DMP-30/EP-1 system were studied. When the composition ratio of TDE-85/MeTHPA/EP-1/DMP-30 is 100: 140: 15: 1 and the curing process is 80 °C/2 h + 110 °C/2 h + 140 °C/2 h, the overall performance of the resin system reached to an optimal value. Impact and bending strength of the casting came out to be 27.64 kJ mâ2 and 167.2â¯MPa, which improved 75.16% and 17.50% respectively compared to the pristine resin system without EP-1. Dynamic viscosity analysis of TDE-85/MeTHPA/DMP-30/EP-1 system showed that the viscosity-temperature curve was U-shaped and the platform zone was located around 60-95â¯Â°C during which the viscosity was less than 200â¯mPaâ¯s. Dual-Arrhenius and engineering viscosity models were established to predict the viscosity characteristics of the resin. It was found that the dual-Arrhenius model matched better with the experimental data at low temperature and low viscosity region. Whereas when the viscosity increased, the engineering viscosity model became more accurate. The viscosity analysis provided the basis for the window prediction of RTM molding process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 70, September 2018, Pages 310-319
Journal: Polymer Testing - Volume 70, September 2018, Pages 310-319
نویسندگان
Dandan Zhang, Rumin Wang, Shameel Farhan, Yinru Cai, Jie Liu,