کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5207752 1382367 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Relationship between water absorption and dielectric behaviour of natural fibre composite materials
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Relationship between water absorption and dielectric behaviour of natural fibre composite materials
چکیده انگلیسی
Gravimetric and dielectric measurements have been used to monitor water uptake in composites with glass, jute and washed jute fibres. The results showed that the dielectric constant of jute fibre composites is higher than that of the composites based on glass fibres. Also, when the frequency increases the permittivity decreases. A Fickian diffusion model was applied and the effective diffusion coefficient was calculated. The results obtained show that when the sizing is removed in fibres washed with hot water, the effective coefficient diffusion increases. Changes in the dielectric permittivity were measured at different frequencies and at different times during water absorption at room temperature. A non-linear behaviour has been found in the changes of the permittivity with water absorption in the frequency range of 200 Hz to 1 MHz.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 25, Issue 2, April 2006, Pages 181-187
نویسندگان
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