Regulating tannic acid-crosslinked epoxidized soybean oil oligomers for strengthening and toughening bamboo fibers-reinforced poly(lactic acid) biocomposites
Regulating tannic acid-crosslinked epoxidized soybean oil oligomers for strengthening and toughening bamboo fibers-reinforced poly(lactic acid) biocomposites
复制标题
调节单宁酸交联环氧化大豆油低聚物用于增强和增韧竹纤维增强聚乳酸生物复合材料
DOI：
10.1016/j.compscitech.2019.107709
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发表时间：
2019-09-08
影响因子：
9.1
通讯作者：
Sakai, Eiichi
中科院分区：
文献类型：
--
作者：
Liu, Wendi;Qiu, Jianhui;Sakai, Eiichi
Bamboo fibers-reinforced poly(lactic acid) (BF/PLA) biocomposites were strengthened and toughened with tannic acid-crosslinked epoxidized soybean oil (TA-ESO) oligomer via reactive extrusion. By adjusting the concentration of TA-ESO on the BFs surface, TA-ESO oligomer was designed to localize at the interface of the composites and then to disperse within PLA matrix. As evidenced by FTIR and XPS analyses, a low concentration of TA-ESO oligomer generated strong interactions with BFs via natural polyphenol-inspired chemistry and formed a flexible interfacial layer between the BFs and PLA matrix. The TA-ESO oligomer with a high concentration would diffuse inside PLA matrix as a rubbery phase to toughen the matrix and thus the composites. The strengthening and toughening effects of TA-ESO phase on the BF/PLA composites were fully discussed by investigating the crystallization behavior, tensile properties, impact strength, thermo-mechanical properties, and morphological analysis of the resulting fully biobased BF/TA-ESO/PLA ternary biocomposites.
