Relationship between phase morphologies and mechanical properties of thermoplastic starch/poly(butylene adipate-co-terephthalate) composite films prepared by extrusion blowing

被引：14
作者：
Zhai, Xiaosong [1 ]
Zhang, Rui [1 ]
Wang, Wentao [1 ,2 ]
Hou, Hanxue [1 ,2 ]
机构：
[1] Shandong Agr Univ, Coll Food Sci & Engn, Engn & Technol Ctr Grain Proc Shandong Prov, Tai An 271018, Peoples R China
[2] Shandong Agr Univ, Coll Food Sci & Engn, Tai An 271018, Peoples R China
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2023年 / 224卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Starch; Poly(butyleneadipate-co-terephthalate); Extrusion blowing; Phase morphology; Mechanical property; STARCH BLENDS; INTERFACE;
D O I：
10.1016/j.ijbiomac.2022.10.221
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Biodegradable films with various weight proportions of thermoplastic starch (TPS) and poly(butylene adipate-co- terephthalate) (PBAT) were prepared by extrusion blowing. Relationship between phase morphologies and mechanical properties of TPS/PBAT composite films was investigated and discussed. Iodine dyeing technique was used to clearly identify TPS and PBAT phases in the composite films. Such blending systems proved to be immiscible and the phase morphology evolution with changes in TPS/PBAT proportions was elucidated. Two phase transition points were found near PBAT content of 30 and 70 wt%, respectively, where mechanical properties of the composite films leaped. Significant correlations were established between mechanical prop-erties and continuity indices of the two phases, namely a positive correlation with continuity index of PBAT and a negative correlation with that of TPS. Inducing the formation and enhancement of continuous structure of PBAT phase is proposed as a practical approach to improve mechanical properties of TPS/PBAT composite films.
引用
收藏
页码：1356 / 1360
页数：5
相关论文
共 26 条
[1]  
[Anonymous], 2012, ASTM D882 12 STANDAR, DOI DOI 10.1520/D0882-12.2
[2]   Reactive compatibilization and properties of low-cost and high-performance PBAT/thermoplastic starch blends [J].
Bai, Juan ;
Pei, Huijie ;
Zhou, Xingping ;
Xie, Xiaolin .
EUROPEAN POLYMER JOURNAL, 2021, 143
[3]   Blends of PBAT with plasticized starch for packaging applications: Mechanical properties, rheological behaviour and biodegradability [J].
Dammak, Mohamed ;
Fourati, Yesmine ;
Tarres, Quim ;
Delgado-Aguilar, Marc ;
Mutje, Pere ;
Boufi, Sami .
INDUSTRIAL CROPS AND PRODUCTS, 2020, 144
[4]   Optimising Ductility of Poly(Lactic Acid)/Poly(Butylene Adipate-co-Terephthalate) Blends Through Co-continuous Phase Morphology [J].
Deng, Yixin ;
Yu, Changyi ;
Wongwiwattana, Peangpatu ;
Thomas, Noreen L. .
JOURNAL OF POLYMERS AND THE ENVIRONMENT, 2018, 26 (09) :3802-3816
[5]   PBAT/thermoplastic starch blends: Effect of compatibilizers on the rheological, mechanical and morphological properties [J].
Fourati, Yesmine ;
Tarres, Quim ;
Mutje, Pere ;
Boufi, Sami .
CARBOHYDRATE POLYMERS, 2018, 199 :51-57
[6]   Effect of sample size on solvent extraction for detecting cocontinuity in polymer blends [J].
Galloway, JA ;
Koester, KJ ;
Paasch, BJ ;
Macosko, CW .
POLYMER, 2004, 45 (02) :423-428
[7]   Effect of the method of production of the blends on mechanical and structural properties of biodegradable starch films produced by blown extrusion [J].
Herrera Brandelero, Renata P. ;
Eiras Grossmann, Maria Victoria ;
Yamashita, Fabio .
CARBOHYDRATE POLYMERS, 2011, 86 (03) :1344-1350
[8]   The effect of surfactant Tween 80 on the hydrophilicity, water vapor permeation, and the mechanical properties of cassava starch and poly(butylene adipate-co-terephthalate) (PBAT) blend films [J].
Herrera Brandelero, Renata P. ;
Yamashita, Fabio ;
Eiras Grossmann, Maria Victoria .
CARBOHYDRATE POLYMERS, 2010, 82 (04) :1102-1109
[9]   The role of the blend interface type on morphology in cocontinuous polymer blends [J].
Li, JM ;
Ma, PL ;
Favis, BD .
MACROMOLECULES, 2002, 35 (06) :2005-2016
[10]   Dynamic Rheological Behavior and Morphology of Polylactide/Poly(butylenes adipate-co-terephthalate) Blends with Various Composition Ratios [J].
Li, Ke ;
Peng, Jun ;
Turng, Lih-Sheng ;
Huang, Han-Xiong .
ADVANCES IN POLYMER TECHNOLOGY, 2011, 30 (02) :150-157
123