کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7214553 | 1469466 | 2018 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Segregated polypropylene/cross-linked poly(ethylene-co-1-octene)/multi-walled carbon nanotube nanocomposites with low percolation threshold and dominated negative temperature coefficient effect: Towards electromagnetic interference shielding and thermisto
ترجمه فارسی عنوان
نانوکامپوزیت های نانولوله کربنی پلی پروپیلن / متقاطع پلی (اتیلن-کولیت-اکتن) / چند جداره با آستانه نفوذ پائین و اثرات ضریب دما تحت تاثیر قرار گرفت: به سمت محافظ تداخل الکترومغناطیسی و ترمیستو
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
چکیده انگلیسی
High-efficiently conductive networks have been well demonstrated to improve electrical properties of conductive polymer composites (CPCs). Here, a facile approach was introduced to control distribution of multi-walled carbon nanotubes (MWCNTs) in isotactic polypropylene/poly(ethylene-co-1-octene) blends (iPP/POE). The POE first melt-crosslinked by the addition of dicumyl peroxide, pulverized into small particles (40-60 meshes), then coated with iPP/MWCNTs composites, and finally compression molded to achieve the segregated iPP/POE/MWCNTs composites with MWCNTs confinedly dispersing in continuous iPP phase. This segregated structure could easily construct high-efficiently conductive networks, resulting in a low percolation threshold of 0.24â¯vol.%, high-performance electrical conductivity, and electromagnetic interference shielding effectiveness (EMI SE). For example, the EMI SE of â¼25â¯dB could be achieved in the segregated nanocomposites with 3.0â¯vol.% MWCNTs (thickness 1.2â¯mm) which reached the commercial requirement. Furthermore, the segregated samples also exhibited a relatively linear negative temperature coefficient (NTC) effect through wide temperature ranges of 45-120â¯Â°C and 150-190â¯Â°C because of anisotropic volume expansion effect caused by the segregated structure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 159, 3 May 2018, Pages 152-161
Journal: Composites Science and Technology - Volume 159, 3 May 2018, Pages 152-161
نویسندگان
Yu-Fan Liu, La-Mei Feng, Yi-Fu Chen, Yu-Dong Shi, Xu-Dong Chen, Ming Wang,