Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 173, Issue -, Pages 15-23Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2019.01.018
Keywords
Short-fibre composites; Environmental degradation; Mechanical properties; Porosity; Damage mechanics
Categories
Funding
- Natural Science Foundation of China [11872279]
- Ministry of Industry and Information Technology of China [MJ-2015-H-G-103]
- Program of Shanghai Academic Research leader [16XD1402900]
- State Key Laboratory for Strength and Vibration of Mechanical Structures (Xi'an Jiaotong University)
- EPSRC [EP/M02833X/1]
- graduate school of Tongji University
- EPSRC [EP/M02833X/1] Funding Source: UKRI
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Biodegradable plant fiber reinforced poly (lactic acid) (PLA) composites are potential replacements for traditional synthetic fiber reinforced composites. These may experience hygrothermal aging from the combined effects of moisture and heat. The effects of aging in water at 50 degrees C on water absorption, chemical degradation of the fibers and matrix, and the tensile properties of a jute fiber/PLA composite have been correlated with changes in the internal structure, observed by high-resolution computed X-ray tomography. Water absorption during aging causes fiber/matrix interface failure and then matrix embrittlement, and these are detrimental to the tensile strength, stiffness and ductility.
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