期刊
POLYMER DEGRADATION AND STABILITY
卷 121, 期 -, 页码 51-59出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2015.08.011
关键词
Spent coffee grounds; Polylactide; Polymer-matrix composites; Environmental degradation
资金
- Ministry of Science and Technology (Taipei City, Taiwan, R.O.C.) [MOST 104-2622-E-244-001-CC3]
The morphology, mechanical properties, and biodegradability of composite materials containing polylactide (PIA) and spent coffee grounds (SCG) were evaluated. Maleic-anhydride-grafted polylactide (PLA-g-MA) and treated, i.e. cross-linked, spent coffee grounds (TSCG) were used to enhance the desired characteristics of these composites. PLA-g-MA/TSCG materials exhibited desirable mechanical properties relative to those of PLA/SCG. This effect was attributed to greater compatibility between the grafted polymer and TSCG. The dispersion of TSCG in the PLA-g-MA matrix was highly homogeneous due to ester formation and resulted in branched and cross-linked macromolecules. Additionally, the PLA-g-MA/TSCG composites exhibited lower melt viscosities and were therefore more easily processed. The water resistance of the PLA-g-MA/TSCG composite was greater than that of PLA/SCG and the mass losses following burial in soil compost indicated that both materials were biodegradable, especially at high levels of SCG substitution. The PLA/SCG and PIA-g-MA/TSCG composites were more biodegradable than neat PEA. (C) 2015 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据