TY - JOUR
T1 - 3D printing of toughened enantiomeric PLA/PBAT/PMMA quaternary system with complete stereo-complexation
T2 - Compatibilizer architecture effects
AU - Yang, Jing
AU - Li, Wei
AU - Mu, Bingnan
AU - Xu, Helan
AU - Hou, Xiuliang
AU - Yang, Yiqi
N1 - Funding Information:
Authors from Jiangnan University are grateful to the Fundamental Research Funds for the Central Universities (JUSRP51907A), the 111 Projects (B17021), Youth Program of Basic Research Plan of Jiangnan University (JUSRP12030), the Natural Science Foundation of Jiangsu Province (BK20180624), Industry-Academia Research Project of Jiangsu Province (BY2020443) and Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX17_1446). Authors from University of Nebraska-Lincoln are grateful to the Agricultural Research Division at the University of Nebraska-Lincoln for their financial supports. Student authors in this program are grateful to Xinning Biotechnology Company their financial supports.
Funding Information:
Authors from Jiangnan University are grateful to the Fundamental Research Funds for the Central Universities ( JUSRP51907A ), the 111 Projects ( B17021 ), Youth Program of Basic Research Plan of Jiangnan University ( JUSRP12030 ), the Natural Science Foundation of Jiangsu Province ( BK20180624 ), Industry-Academia Research Project of Jiangsu Province ( BY2020443 ) and Postgraduate Research & Practice Innovation Program of Jiangsu Province ( KYCX17_1446 ).
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/3/1
Y1 - 2022/3/1
N2 - A novel toughening technique for 3D printed completely stereo-complexed PLA was devised. Stereo-complexation improves heat and hydrolysis resistance of traditional PLA but intensify its brittleness. Though PBAT elastomer with non-reactive compatibilizer PMMA enhances toughness of traditional PLLA, effects of the two components on crystalline structures and thus heat and hydrolysis resistance of stereo-complexed PLA kept unknown. To add to the challenge, technical difficulties occurred when trying to make stereo-complexation and controlled dispersion of PBAT in the enantiomeric PLA/PBAT/PMMA quaternary system adaptive to 3D printing. The hypothesis is that controlled compatibilization effect of PMMA endows PBAT with good dispersibility in the quaternary system, without affecting the hierarchical crystallization of enantiomeric PLA matrices for complete stereo-complexation. To analyze compatibilization effect of PMMA, interfacial, viscoelastic, crystalline, thermal, thermodynamical, mechanical, and rheological properties were systematically studied. Such a technique provides a new and facile solution to manufacture high-performance 3D printed PLA matrix.
AB - A novel toughening technique for 3D printed completely stereo-complexed PLA was devised. Stereo-complexation improves heat and hydrolysis resistance of traditional PLA but intensify its brittleness. Though PBAT elastomer with non-reactive compatibilizer PMMA enhances toughness of traditional PLLA, effects of the two components on crystalline structures and thus heat and hydrolysis resistance of stereo-complexed PLA kept unknown. To add to the challenge, technical difficulties occurred when trying to make stereo-complexation and controlled dispersion of PBAT in the enantiomeric PLA/PBAT/PMMA quaternary system adaptive to 3D printing. The hypothesis is that controlled compatibilization effect of PMMA endows PBAT with good dispersibility in the quaternary system, without affecting the hierarchical crystallization of enantiomeric PLA matrices for complete stereo-complexation. To analyze compatibilization effect of PMMA, interfacial, viscoelastic, crystalline, thermal, thermodynamical, mechanical, and rheological properties were systematically studied. Such a technique provides a new and facile solution to manufacture high-performance 3D printed PLA matrix.
KW - 3D printing
KW - Complete stereo-complexation
KW - PBAT
KW - PLA
KW - PMMA compatibilization
KW - Toughness
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U2 - 10.1016/j.polymer.2022.124590
DO - 10.1016/j.polymer.2022.124590
M3 - Article
AN - SCOPUS:85123738716
SN - 0032-3861
VL - 242
JO - Polymer
JF - Polymer
M1 - 124590
ER -