کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5021934 | 1469379 | 2016 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Studied on mechanical, thermal and dielectric properties of BPh/PEN-OH copolymer
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Studied on mechanical, thermal and dielectric properties of BPh/PEN-OH copolymer Studied on mechanical, thermal and dielectric properties of BPh/PEN-OH copolymer](/preview/png/5021934.png)
چکیده انگلیسی
The thermosetting 4,4â²-bis(3,4-dicyanophenoxy)biphenyl (BPh) was modified with the hydroxy-terminated poly(aryl ether nitrile) (PEN-OH). Two different crosslinking reactions including the polymerization of the nitrile groups and the formation of triazines were coexisted in the BPh/PEN-OH system, which depended on the different curing temperature. Moreover, along with the processing of crosslinking, the microstructure changed to plastic fracture first and then became brittle fracture (T > 320 °C), which was observed from SEM. The copolymer system showed good mechanical properties, outstanding thermal stability (over 520 °C) and high char yield (86.1% at 600 °C). Furthermore, they exhibited excellent dielectric properties. Both the dielectric constant and dielectric loss were found to be relatively stable over a wide range of frequencies ranging from 100 Hz to 200 kHz. Moreover, the dielectric stability was also found with respect to temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 106, 1 December 2016, Pages 294-299
Journal: Composites Part B: Engineering - Volume 106, 1 December 2016, Pages 294-299
نویسندگان
Yumin Huang, Yusi Luo, Mingzhen Xu, Yangxue Lei, Xiaobo Liu,