Optimizing interfacial adhesion in PBAT/PLA nanocomposite for biodegradable packaging films

被引：146

作者：

Qiu, Shuo ^{[1
]}

Zhou, Yikai ^{[1
]}

Waterhouse, Geoffrey I. N. ^{[1
,2
]}

Gong, Ruizhi ^{[1
]}

Xie, Jiazhuo ^{[1
]}

Zhang, Kun ^{[1
]}

Xu, Jing ^{[1
]}

机构：

[1] Shandong Agr Univ, Coll Chem & Mat Sci, Tai An 271018, Shandong, Peoples R China

[2] Univ Auckland, Sch Chem Sci, Auckland 1142, New Zealand

来源：

FOOD CHEMISTRY | 2021年 / 334卷 / 334期

关键词：

PBAT; PLA; POSS; Compatibility; Biodegradable packaging film; REACTIVE EXTRUSION; POSS; NANOPARTICLES; FABRICATION; IMPROVEMENT; SEPARATION; COMPOSITE; POLYMER; BLENDS; PLA;

D O I：

10.1016/j.foodchem.2020.127487

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Biodegradable films poly(butylene adipate-co-butylene terephthalate) (PBAT)/poly(lactic acid) (PLA) incorporated with nano-polyhedral oligomeric silsesquioxane (POSS(epoxy)8) as a reactive compatibilizer were developed by melt processing. Structural, morphological, mechanical, and gas permeability properties of the films were determined. H-1 NMR and GPC demonstrated that the POSS(epoxy)8 was chemically bound at the PBAT/PLA boundary phase via an epoxide ring opening reaction. SEM micrographs of impact fracture surfaces demonstrated the POSS(epoxy)8 improved interfacial adhesion between PBAT and PLA matrix. The mechanical properties of the PBAT/PLA films containing POSS(epoxy)8 were enhanced relative to pristine PBAT/PLA films. The water vapor, CO2 and O-2 permeability of the PBAT/PLA films were improved by POSS(epoxy)8 addition. PBAT/PLA films containing POSS(epoxy)8 were shown to be superior to pristine PBAT/PLA films and polyethylene films in food storage tests. Results suggest that POSS(epoxy)8 addition during PBAT/PLA film production offers a simple strategy for the production of high performance biodegradable plastic packaging films.

引用

页数：9

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