Journal
POLYMER TESTING
Volume 66, Issue -, Pages 319-326Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymertesting.2018.02.003
Keywords
Poly(butylene succinate); Sugarcane rind fiber; Biodegradability; Soil burial
Funding
- National Natural Science Foundation of China [51403024]
- Quality Engineering Project of Anhui Province [2014zjjh047]
- Natural Scientific Research Project of Chizhou University [2016ZRZ001]
- Science Foundation of Anhui Province [gxfxZD2016288, 102017A575]
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Biodegradable composites were prepared from poly(butylene succinate)(PBS) and sugarcane rind fiber (SRF) by melt blending. The effects of SRF content and burial time on the biodegradability of SRF/PBS composites were investigated. Soil burial experiment was lasted 100 days under natural soil conditions. The biodegradability of pure PBS and SRF/PBS composites was evaluated by analyzing weight loss, mechanical properties, morphological properties, melting and crystallization behavior and thermal stability after the soil burial test. The weight loss and the mechanical property loss ratio of SRF/PBS composites were higher than that of pure PBS, and reached a maximum value when the SRF content was 5 wt% after soil burial for 100 days. Scanning electron microscopy (SEM) suggested that the degree of erosion of the composites was higher than that of the pure PBS. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TG) showed an increase in crystallization temperature(T-c), degree of crystallinity(chi(c)) and maximum weight loss rate temperature(T-max) after soil burial for 100 days except for the 5 wt% SRF/PBS composites. It is indicated that 5 wt% SRF addition had the maximum impact on the accelerated degradation of PBS.
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