کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7787695 | 1500625 | 2015 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Regenerated cellulose/multiwalled carbon nanotube composite films with efficient electric heating performance
ترجمه فارسی عنوان
فیلم های کامپوزیتی نانولوله کربنی سلولز / پلی اتیلن بازسازی شده با کارایی کارآمد حرارت الکتریکی
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کلمات کلیدی
سلولز بازسازی شده نانولوله کربنی چند ضلعی، فیلم کامپوزیت گرمایش الکتریکی، پایداری حرارتی،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
We have manufactured regenerated cellulose-based composite films reinforced with pristine multiwalled carbon nanotube (MWCNT) by a facile casting of cellulose/DMAc/LiCl solutions containing 0.2-10.0 wt% MWCNT and have investigated their application as electric heating materials by examining microstructure, thermal stability, and electrical properties. TEM images showed that the pristine MWCNT was dispersed well in the regenerated cellulose matrix. The composite films were found to be stable thermally up to â¼275 °C. The electrical resistivity of the regenerated cellulose/MWCNT composite films decreased significantly from â¼109 Ω cm to â¼101 Ω cm with increasing the MWCNT loading, particularly at a certain MWCNT content between 2.0 and 3.0 wt%. Accordingly, the composite films with 5.0-10.0 wt% MWCNT contents, which possessed low electrical resistivity of â¼102-101 Ω cm, exhibited excellent electric heating performance in aspects of temperature responsiveness, steady-state maximum temperature, and electrical energy efficiency at constant applied voltages. For instance, the composite film with 10.0 wt% MWCNT had well-controlled steady-state maximum temperatures of 40-189 °C at 20-80 V, characteristic temperature growth constant of â¼1 s, and electric power efficiency of â¼5.4 mW/°C, which performance remained unchanged under repeated experiments for several hours.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 133, 20 November 2015, Pages 456-463
Journal: Carbohydrate Polymers - Volume 133, 20 November 2015, Pages 456-463
نویسندگان
Tae-Won Lee, Young Gyu Jeong,