Biodegradation of poly(lactic acid) and its nanocomposites

被引：287

作者：

Fukushima, K. ^{[1
]}

Abbate, C. ^{[2
]}

Tabuani, D. ^{[1
]}

Gennari, M. ^{[2
]}

Camino, G. ^{[1
]}

机构：

[1] Politecn Torino Sede Alessandria, INSTM Res Unit, Ctr Ingn Mat Plast, I-15100 Alessandria, Italy

[2] Univ Catania, Dipartimento Sci Agron Agrochim & Prod Anim DACPA, I-95123 Catania, Italy

来源：

POLYMER DEGRADATION AND STABILITY | 2009年 / 94卷 / 10期

关键词：

Poly(lactic acid); Nanocomposites; Biodegradation; Microbial degradation; L-LACTIDE COPOLYMERS; ENZYMATIC DEGRADATION; SILICATE NANOCOMPOSITES; HYDROLYTIC DEGRADATION; ALIPHATIC POLYESTERS; THERMAL-STABILITY; MELTING BEHAVIOR; POLY(L-LACTIDE); POLYLACTIDE; CRYSTALLINITY;

D O I：

10.1016/j.polymdegradstab.2009.07.001

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

PLA nanocomposites based on organically modified montmorillonites at 5% w/w loading were prepared by melt blending using an internal mixer and then degraded in a commercial compost. The addition of nanoclays was found to increase the PLA degradation rate, especially for the highest dispersed clay in the polymer matrix. Biodegradation by microorganisms isolated from the compost showed the bacterium Bacillus licheniformis as one of the responsible for PLA biodegradation in compost. It was also found that clays can influence the polymer bacterial degradation depending on their chemical structure and affinity of the bacterium towards the clay. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1646 / 1655

页数：10

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