کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11020706 1715619 2019 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Highly anisotropic thermally conductive polyimide composites via the alignment of boron nitride platelets
ترجمه فارسی عنوان
کامپوزیت پلی آمید با گرادیلی بسیار غیر آیزوتروپیک از طریق تراز کردن پلاکت های نیترید بور
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی
In this work, highly anisotropic thermally conductive polyimide/boron nitride (PI/BN) composites were successfully prepared by a simple method called “ball milling, high-pressure compression and low-temperature sintering”. The in-plane thermal conductivity of the PI composites with 30wt% BN reached as high as 2.81 W/mK, while the out-of-plane thermal conductivity was 0.73 W/mK, about 3.2 times and 2.4 times of pure PI, respectively. The great improvement of the thermal conductivity was attributed to the in-plane alignment of BN platelets, which constructed highly connected thermally conductive pathways. The thermally conductive BN networks were observed to be more dense and sufficient in the in-plane direction, more favorable for the heat dissipation, compared to the out-of-plane direction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 158, 1 February 2019, Pages 311-318
نویسندگان
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