期刊
POLYMER DEGRADATION AND STABILITY
卷 185, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2021.109500
关键词
Natural fiber composites; Microwave processing; Liquid storage tank; Environmental degradation; Raman spectroscopy
The study investigated the wetting, absorption, and degradation behavior of microwave-assisted compression molded 30 wt. % kenaf/HDPE composite conditioned in various environments for 6 months. It was found that the composite showed different responses to liquids such as deionized water, sea water, NaOH solution, vegetable oil, and diesel oil, with better suitability for storage of less absorbing liquids like oils and sea water.
The present work investigates wetting, absorption and degradation behavior of microwave-assisted compression molded 30 wt. % kenaf/HDPE composite conditioned in various environments for 6 months. The environments were deionized water, sea water, 5 % NaOH solution, vegetable oil and diesel oil. These liquids can be stored in kenaf/HDPE composite tank. Absorption behavior is discussed in detail for all the environments and is supported with morphology of surface. The liquid uptake and thickness swelling were highest for deionized water and lowest for vegetable oil. The degradation of composite conditioned in 5 % NaOH solution was highest and lowest in the case of vegetable oil. The change in chemical structure of the conditioned composite was studied using Raman spectroscopy. Liquids used in this research work have less impact on kenaf/HDPE composite due to less shift in Raman intensities (i.e. 1.7 cm(-1)). Through the study it was observed that kenaf/HDPE composite can be better suited for storage of less absorbing liquids i.e. oils and sea water. (C) 2021 Elsevier Ltd. All rights reserved.
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