Environmental ageing studies of chemically modified micro and nanofibril phenol formaldehyde composites

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Data

2013-08-01

Autores

Cherian, Bibin Mathew [UNESP]
Leão, Alcides Lopes [UNESP]
de Morais Chaves, Marcia Rodrigues
de Souza, Sivoney Ferreira
Sain, Mohini
Narine, Suresh S.

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Resumo

Cellulose micro and nano fibrils were extracted from banana macro fibres and chemically modified using sodium hydroxide, formic acid, 3-methacryloxy propyltrimethoxy silane. These untreated and chemically treated fibrils were incorporated into PF resin and the specimens were prepared. The composites were subjected to long-term water ageing, thermal ageing soil burial and outdoor weathering. The mechanical properties are reduced under all ageing conditions. The present study investigates the effects of different types of ageing on macro fibre, microfibril and nanofibril reinforced PF composites. The effect of chemical modifications of fibres on the degradability of the composites at different environments also has been analysed. © 2013 Elsevier B.V.

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Fibre modification, Microcomposites, Microfibrils, Nanocellulose, Nanocomposites, Nanofibrils, Fibre modifications, Micro-composites, Micro-fibrils, Nano-cellulose, Nano-fibrils, Chemical modification, Mechanical properties, Fibers, carboxylic acid, cellulose, chemical weathering, composite, formaldehyde, herb, hydroxide, mechanical property, phenol, resin

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Industrial Crops and Products, v. 49, p. 471-483.