Effect of sepiolite on the biodegradation of poly(lactic acid) and polycaprolactone

被引：88

作者：

Fukushima, Kikku ^{[2
]}

Tabuani, Daniela ^{[1
]}

Abbate, Cristina ^{[3
]}

Arena, Maria ^{[3
]}

Ferreri, Loredana ^{[4
]}

机构：

[1] PROPLAST Consortium, I-15057 Rivalta Scrivia, AL, Italy

[2] Politecn Torino Sede Alessandria, INSTM Res unit, I-15100 Alessandria, Italy

[3] Univ Catania, Sez Sci Agrochim, Dipartimento Sci Agron Agrochim & Prod Anim, I-95123 Catania, CT, Italy

[4] CNR, Ist Chim & Tecnol Polimeri, I-95126 Catania, CT, Italy

来源：

POLYMER DEGRADATION AND STABILITY | 2010年 / 95卷 / 10期

关键词：

Polycaprolactone; Polylactic acid; Nanocomposites; Sepiolite; Biodegradation; L-LACTIDE COPOLYMERS; IN-VITRO HYDROLYSIS; ENZYMATIC DEGRADATION; ALIPHATIC POLYESTERS; EPSILON-CAPROLACTONE; POLYLACTIDE/MONTMORILLONITE NANOCOMPOSITES; POLYMER NANOCOMPOSITES; MELT INTERCALATION; BLEND FILMS; POLY(L-LACTIDE);

D O I：

10.1016/j.polymdegradstab.2010.07.004

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 and PCL nanocomposites prepared by adding 5 wt% of a sepiolite (SEPS9) were degraded in compost, leading to effective degradation for all samples. PLA and PLA/SEPS9 seem to be mainly degraded by a bulk mechanism, showing a significant level of polymer degradation, however the presence of SEPS9 particles partially delays the degradation probably due to a preventing effect of these particles on polymer chain mobility and/or PLA/enzymes miscibility. PCL and PCL/SEPS9 showed a preferential surface mechanism of degradation; and in contrast to PLA, sepiolite does not present a considerable barrier effect on the degradation of PCL. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2049 / 2056

页数：8

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