Rheological and mechanical properties, heat resistance and hydrolytic degradation of poly(butylene succinate-co-adipate)/stereocomplex polylactide blends

被引：9

作者：

Liu, Chengkai ^{[1
,2
]}

Han, Zhengyi ^{[3
]}

Yan, Xiangyu ^{[1
]}

Yu, Jinshuo ^{[1
]}

Zhang, Qiao ^{[1
]}

Wang, Dongmei

Zhao, Yan ^{[1
]}

Zhang, Huiliang ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R China

[2] Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Qingdao 266510, Peoples R China

[3] Fudan Univ, Dept Macromol Sci, State Key Lab Mol Engn Polymers, Lab Adv Mat, Shanghai 200438, Peoples R China

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2023年 / 140卷 / 21期

关键词：

blends; heat resistance; hydrolytic degradation; poly(butylene succinate-co-adipate); stereocomplex poly(lactic acid); CO-BUTYLENE ADIPATE); POLY(LACTIC ACID); STEREOCOMPLEX FORMATION; POLYMER BLENDS; CRYSTALLIZATION; MORPHOLOGY; NANOCOMPOSITES; COMPOSITES;

D O I：

10.1002/app.53884

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this study, equimolar amounts of poly(l-lactic acid) (PLLA) and poly(d-lactide acid) (PDLA) were melt-blended with PBSA, to obtain a novel and environmentally friendly PBSA/sc-PLA blend, through in situ formation of stereo-complex poly(lactic acid) (sc-PLA). Differential scanning calorimetry and wide-angle X-ray diffractometry confirmed the formation of sc-PLA in PBSA matrix. The sc-PLA was uniformly dispersed in PBSA matrix. Up to 20 wt% sc-PLA concentration, the PBSA/sc-PLA blends showed solid-like flow behavior in the low-frequency region. Moreover, sc-PLA could reinforce the PBSA matrix. The Young's modulus, yield strength, and storage modulus of PBSA/sc-PLA blend increased with increase in sc-PLA content. In addition, the heat deflection temperatures of PBSA/sc-PLA blends increased on incorporation of sc-PLA, thus enhancing the heat resistance. Compared with neat PBSA, the hydrolytic degradation of PBSA/sc-PLA blends was improved. This work provides an effective strategy to obtain high performance PBSA materials and expand the application scope of PBSA.

引用

页数：11

共 48 条

[1] The Chinese import ban and its impact on global plastic waste trade [J].