Chitin hybrid materials reinforced with graphene oxide nanosheets: chemical and mechanical characterisation

被引：22

作者：

Antonio Gonzalez, Joaquin ^{[1
]}

Florencia Mazzobre, Maria ^{[2
,3
]}

Emilia Villanueva, Maria ^{[1
]}

Eduardo Diaz, Luis ^{[1
]}

Javier Copello, Guillermo ^{[1
]}

机构：

[1] UBA, IQUIMEFA UBA CONICET, Fac Farm & Bioquim, Catedra Quim Analit Instrumental, RA-1428 Buenos Aires, DF, Argentina

[2] UBA, Fac Ciencias Exactas & Nat, Dept Ind, RA-1428 Buenos Aires, DF, Argentina

[3] Consejo Nacl Invest Cient & Tecn, RA-1428 Buenos Aires, DF, Argentina

来源：

RSC ADVANCES | 2014年 / 4卷 / 32期

关键词：

STRUCTURAL-ANALYSIS; MARINE SPONGES; ALPHA-CHITIN; BETA-CHITIN; COMPOSITES; FILM; ADSORPTION; FIBERS; NANOCOMPOSITE; FABRICATION;

D O I：

10.1039/c3ra47986b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Chitin hybrid materials reinforced with graphene oxide nanosheets (nGO) have been prepared. The chitin : nGO ratio ranged from proportions where chitin was the main component to ones where nGO exceeded chitin. SEM and TEM images showed that high proportions of nGO may result in nanosheet association. FTIR, C-13 solid-state NMR and DSC analyses showed that the interaction among the components would not involve the formation of new molecular bonds. nGO was shown to act as a filler that induces structural rearrangements in chitin which lead to new hydrogen bonds among the chains. The mechanical stability proved to be higher when the nGO content in the hybrid was similar to or higher than that of chitin. The rheological behaviour of the material was shown to become more solid-like with increasing nGO content. The nGO did not interfere with lysozyme activity on chitin chains, indicating that these materials would be biodegradable.

引用

页码：16480 / 16488

页数：9

共 55 条

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