کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7792677 1500657 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Qualitative and quantitative assessment of water sorption in natural fibres using ATR-FTIR spectroscopy
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Qualitative and quantitative assessment of water sorption in natural fibres using ATR-FTIR spectroscopy
چکیده انگلیسی
In the field of composite materials, natural fibres appear to be a viable replacement for glass fibres. However, in humid conditions, strong hydrophilic behaviour of such materials can lead to their structural modification. Then, understanding moisture sorption mechanisms in these materials is an important issue for their efficient use. In this work, the water sorption on three natural fibres (flax, hemp and sisal) was studied using Fourier transformed infrared spectroscopy. The spectral information allowed both qualitative and quantitative analyses of the moisture absorption mechanisms. The main chemical functions involved in the water sorption phenomenon were identified. The absolute water content of the fibres was also determined by using a partial least square regression (PLS-R) approach. Moreover, typical sorption isotherm curves described by Park model were fitted as well as water diffusion kinetics. These last applications confirmed the validity of the FTIR spectra based predictive models.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 101, 30 January 2014, Pages 163-170
نویسندگان
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