writer：N. Jiang, T. Yu*, Y. Li*, J. Xiong and S. Cai.
keywords：jute, poly(lactic acid)(PLA), degradation, water absorption, mechanical property
source：会议
specific source：The 9th Asian-Australasian Conference on Composite Materials (ACCM-9)
Issue time：2014年
The current energy shortage and environmental pollution has received people''s attention to green and sustainable materials. Jute and poly(lactic acid)(PLA), as biodegradable materials, have biodegradability and abundant renewable source. Nature fiber reinforced PLA composites are more and more used to replace the petroleum-based composite. So the study on the durability of jute/PLA composites can provide a reference for service life of this kind products. In order to assess the durability of jute fiber reinforced poly(lactic acid)(PLA) composite, the material was set in the deionized water baths at three different temperature including 23oC, 37.8oC, 60oC. The change of moisture absorption and mechanical properties of jute/PLA composites with the increase of the aging time was investigated. In addition, the samples were also analyzed by scanning electronic microscopy (SEM), differential scanning calorimetry(DSC), thermal gravity(TG). The study showed that in the first stage of hydrothermal aging, the water absorption rates of the jute/PLA composite was according with the Fickian''s law. In the second stage it was deviated. The water absorption rate increased with the increase of aging temperature in the first stage. The mechanical properties, such as flexural properties, tensile properties decreased at different degrees with the increase of aging time. Aging mechanisms of jute/PLA was also investigated.