کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1521865 | 995300 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sintering of nanoscale silver coated textiles, a new approach to attain conductive fabrics for electromagnetic shielding
ترجمه فارسی عنوان
پختن پارچه های نازک نقره ای پوشش داده شده، روشی جدید برای رسیدن به پارچه های رسانا برای محافظت الکترومغناطیسی
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کلمات کلیدی
نانوساختارها، پختن سنتز شیمیایی، میکروسکوپ الکترونی، خواص الکتریکی، خصوصیات سطحی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
The demand for conductive textiles is increasing, owing to the need for lightweight and flexible conductive materials for a variety of applications, including electromagnetic shielding of electronic equipment. Herein we propose a process that combines the in situ synthesis of silver nanoparticles at the textile fibre surface followed by sintering of the nanoparticles to obtain highly conductive fabrics. The formation of silver particles at the nanoscale allowed for sintering to be performed efficiently, at reduced temperature and time, bestowing fabrics with high conductivity and capability of shielding electromagnetic radiation. The nanoparticle synthesis method entailed the precipitation of 2.0 g Lâ1 silver nitrate and further reduction with citrate, with the formation of a deposit of silver nanoparticles at the fabric surface. The amount of silver deposited (up to 195 mg of silver per g of fabric) resulted in moderate electrical conductivity with sheet resistance of 803 Ω/sq. Upon sintering, this value decreased dramatically to 5.2 Ω/sq. The sintering process was monitored by SEM, which showed that sintering at 200 °C for 30 min resulted in maximal electrical conductivity with the lowest amount of silver deposited, while forming a homogenous surface. Fabrics submitted to these sintering conditions maintained their sheet resistance and shielding effectiveness values, even after eight washing cycles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 147, Issue 3, 15 October 2014, Pages 815-822
Journal: Materials Chemistry and Physics - Volume 147, Issue 3, 15 October 2014, Pages 815-822
نویسندگان
Kasra Kardarian, Tito Busani, Inês Osório, Helena Domingos, Rui Igreja, Ricardo Franco, João Cortez,