کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5353375 | 1503672 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of acidification conditions on the properties of carbon nanotube fibers
ترجمه فارسی عنوان
اثر شرایط اسیدی شدن بر خواص فیبرهای نانولوله کربنی
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کلمات کلیدی
فیبر کربن نانولوله، اسیدی شدن، رسانایی الکتریکی، اموال کششی،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
Carbon nanotube (CNT) fibers prepared by dry-spun method were functionalized by mixture of nitric and sulfuric acids. The effects of acidification conditions on the electrical conductivity and tensile properties of CNT fibers were investigated. A strong, high conductive CNT fiber was obtained under the optimal mixture ratio and processing time, with a electrical conductivity and tensile strength up to 3.2Â ÃÂ 104Â S/m and 1103Â MPa, respectively. It showed that the acids densified the surface of the CNT fiber and introduced functional groups onto the tubes, both of which contributed to the conductivity improvement of the CNT fiber. The infrared spectroscopy, Raman and fracture analysis indicated that acidification process resulted in two competitive effects on the tensile properties of CNT fibers, one was the positive contribution by the enhancement of interactions between CNTs through the densification and functional groups, and the other was the negative effect due to the structural destruction of the tubes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 292, 15 February 2014, Pages 469-474
Journal: Applied Surface Science - Volume 292, 15 February 2014, Pages 469-474
نویسندگان
Kun Wang, Min Li, Ya-Nan Liu, Yizhuo Gu, Qingwen Li, Zuoguang Zhang,