文献类型：期刊文献

英文题名：Study on Compatibility of a Novel Cardanol-Based Compatibilizer in PLA/PBAT Blend

作者：Wen, Wei[2];Li, Chenyang[2];Meng, Xin[2];Gong, Weiguang[1];Chen, Shiyuan[2];Xin, Zhong[2]

机构：[1]East China Univ Sci & Technol, Res & Dev Ctr Sports Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Dept Prod Engn, Shanghai Key Lab Multiphase Mat Chem Engn, Shanghai 200237, Peoples R China

年份：2024

卷号：63

期号：19

起止页码：8684

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20241916038904);WOS:【SCI-EXPANDED(收录号:WOS:001224449600001)】；

语种：英文

外文关键词：Crystallinity - Grafting (chemical) - Impact strength - Nuclear magnetic resonance - Nuclear magnetic resonance spectroscopy - Particle size - Particle size analysis - Polyesters - Thermogravimetric analysis

摘要：Present study developed a novel additive, epoxidized cardanol grafted polylactide (PLA-g-ECA), derived from biomass cardanol. The compatibilization effect of PLA-g-ECA for polylactide (PLA) and poly(butylene adipate-co-terephthalate) (PBAT) blend was thoroughly investigated. Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and proton nuclear magnetic resonance (H-1 NMR) measurements validated the successful grafting of epoxidized cardanol onto PLA, with a grafting amount of approximately 1.65 wt %. It was confirmed that PLA-g-ECA preferentially reacted with the PBAT phase, followed by entanglement with the PLA phase, leading to a compatibilization process. Compared to the pristine blend, the compatibilized blend presented a more blurred phase boundary with decreased PBAT particle size (from 0.55 to 0.43 mu m) upon the addition of 10 wt % PLA-g-ECA. The enhanced interfacial adhesion increased the elongation at break and notched impact strength of the compatibilized blend to 251% and 12.5 kJ/m(2), respectively, approximately 2.7 and 1.3 times that of the pristine blend. Moreover, the compatibilized blend exhibited improved crystallization performance, and the crystallinity of PLA increased from 6.3 to 45.0%. This work enriched the design of compatibilizer for the PLA/PBAT blend and provided a novel approach for expanding the application of biomass cardanol.