Morphology Water Absorption and Biodegradable Properties of Polylactide Biocomposites Reinforced with Sisal Fibers

被引：7
|
作者：
Krishnaiah, Prakash [1 ]
Ratnam, Chantara Thevy [2 ]
Manickam, Sivakumar [1 ]
机构：
[1] Univ Nottingham Malaysia Campus, Dept Chem & Environm Engn, Jalan Broga, Semenyih 43500, Selangor De, Malaysia
[2] Agensi Nuklear Malaysia, Bangi, Selangor, Malaysia
来源：
MATERIALS TODAY-PROCEEDINGS | 2018年 / 5卷 / 10期
关键词：
Sisal fibbers; Alkali treatment; Morphology; Ultrasound; PLA Composites; biodegradability; DYNAMIC-MECHANICAL PROPERTIES; POLYPROPYLENE COMPOSITES; NATURAL FIBER; CHEMICAL-MODIFICATION; POLYESTER COMPOSITES; SURFACE MODIFICATION; POLYMER COMPOSITES; PLASMA TREATMENT; COIR FIBERS; ALKALI;
D O I：
10.1016/j.matpr.2018.06.622
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this investigation, the effect of different surface treatments on morphology, water absorption and biodegradable properties of sisal fiber reinforced PLA (SF/PLA) composites were studied. Field-emission scanning electron microscopy (FE-SEM) analysis confirmed the good dispersion of different surface treated sisal fibers in the PLA composites which improved the interfacial adhesion between sisal fibers and PLA matrix. Water absorption is reduced significantly for combined treated SF/PLA composites by 136% as compare to untreated composites. Environmental degradation was studied for SF/PLA composites by composting the samples into the soil. FE-SEM analysis shows the fiber reinforced composites were degraded faster than the pure PLA. It is also worth noted that the combination of alkali and HIU treated fiber composites show slower degradation as compare to untreated one. A significant weight loss could be seen (17.87% weight loss for untreated SF/PLA composites) after soil composting for 120 days. This investigation clearly confirms that the surface treatments of sisal fibers with the combination of alkali and high intensity ultrasound (HIU) are effective to improve filler dispersion, water resistance and biodegradability of SF/PLA composites. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：22506 / 22516
页数：11
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