A novel polymer based on MtCu2+/cellulose acetate with antimicrobial activity

被引：36

作者：

Bruna, J. E. ^{[1
]}

Galotto, M. J. ^{[1
]}

Guarda, A. ^{[1
]}

Rodriguez, F. ^{[1
]}

机构：

[1] Univ Santiago Chile USACH, Fac Technol, Ctr Dev Nanosci & Nanotechnol CEDENNA, Food Packaging Lab Laben Chile,Dept Sci & Food Te, Santiago, Chile

来源：

CARBOHYDRATE POLYMERS | 2014年 / 102卷

关键词：

Montmorillonite; Copper; Antimicrobial activity; Copper modified clay; Cellulose acetate; Nanocomposites; CELLULOSE-ACETATE; NANOCOMPOSITES; COPPER; ANTIBACTERIAL; FILMS; MONTMORILLONITES; DEGRADATION; ORGANOCLAYS; MEMBRANES; STARCH;

D O I：

10.1016/j.carbpol.2013.11.038

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Cellulose acetate (CA)/copper montmorillonite modified (MtCu(2+)) antimicrobial nanocomposites for food packaging containing 1, 3 and 5 wt.% nanoparticles were prepared by solution casting technique. X-ray diffraction (XRD) and transmission electron microscopy revealed the existence of intercalated and no intercalated clay form in the CA matrix. The thermal stability of the MtCu(2+)/CA nanocomposites was measured by TGA and DSC, which indicated that the nanocomposites were less thermally stable in comparison to CA pure. Mechanical testing of material did not show differences when MtCu(2+) was added in CA. On the other hand, antimicrobial effect was observed for nanocomposites films, obtaining a 98% reduction against Escherichia coli. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：317 / 323

页数：7

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