کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
817950 1469429 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical, electrical and thermal properties of aligned carbon nanotube/polyimide composites
ترجمه فارسی عنوان
خواص مکانیکی، الکتریکی و حرارتی کامپوزیت های نانولوله کربنی / پلی آمید کربن
کلمات کلیدی
نانولوله های کربنی، پلییمید، نانوکامپوزیت، سیم پیچ اسپری، چند کاره،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی
Carbon nanotubes (CNTs) have high strength and modulus, large aspect ratio, and good electrical and thermal conductivities, which make them attractive for fabricating composite. The poly(biphenyl dianhydride-p-phenylenediamine) (BPDA/PDA) polyimide has good mechanical and thermal performances and is herein used as matrix in unidirectional carbon nanotube composites for the first time. The strength and modulus of the composite increase by 2.73 and 12 times over pure BPDA-PDA polyimide, while its electrical conductivity reaches to 183 S/cm, which is 1018 times over pure polyimide. The composite has excellent high temperature resistance, and its thermal conductivity is beyond what has been achieved in previous studies. The improved properties of the composites are due to the long CNT length, high level of CNT alignment, high CNT volume fraction and good CNT dispersion in polyimide matrix. The composite is promising for applications that require high strength, lightweight, or high electrical and thermal conductivities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 56, January 2014, Pages 408-412
نویسندگان
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