Tearing fracture of poly(lactic acid) (PLA)/poly(butylene succinate-co-adipate) (PBSA) cast extruded films: Effect of the PBSA content

被引：13

作者：

Aliotta, Laura ^{[1
,2
]}

Gigante, Vito ^{[1
,2
]}

Dal Pont, Bianca

Miketa, Filip ^{[3
]}

Coltelli, Maria-Beatrice ^{[1
,2
]}

Lazzeri, Andrea ^{[1
,2
]}

机构：

[1] Univ Pisa, Dept Civil & Ind Engn, Via Diotisalvi 2, I-56122 Pisa, Italy

[2] Interuniv Natl Consortium Mat Sci & Technol INSTM, Via Giusti 9, I-50121 Florence, Italy

[3] Biomi Doo, Put Brdo 15, Matulji 51211, Croatia

来源：

ENGINEERING FRACTURE MECHANICS | 2023年 / 289卷

关键词：

Poly(lactic acid) blends; Films; Cast extrusion; Essential work of fracture; Trouser test; ESSENTIAL WORK; POLYLACTIC ACID; MECHANICS; RESISTANCE; BEHAVIOR;

D O I：

10.1016/j.engfracmech.2023.109450

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The development of bio-based film formulations that show mechanical properties comparable to current fossil films is a challenging technological goal. Poly(lactic acid) (PLA) is the most attractive bio-based polymer; however, its poor ductility limits its use for film application. To overcome this issue, in this work PLA was blended with a ductile poly(butylene succinate-co-adipate) (PBSA) bio-based polymer, and cast extruded PLA/PBSA films were produced with differing PBSA amounts (20, 30 and 40 wt%). The mechanical properties of the film were eval-uated both in machine and cross direction. The tearing resistance of the produced film was implemented with the essential work of fracture approach to explore the mode III out-of-plane fracture resistance.

引用

页数：12

共 54 条

[1] Effect of biobased plasticizers, used as dispersing aids, on mechanical, rheological and thermal properties of micro fibrillated cellulose (MFC)/poly (lactic acid) (PLA) biocomposites over the time: how MFC controls the plasticizer migration? [J].