Morphology and thermal properties of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/attapulgite nanocomposites

Materials Research

Rossana Mara Da Silva Moreira Thiré¹  Liliane Cardoso Arruda¹  Ledjane Silva Barreto¹ 

[1] ,Universidade Federal de Sergipe Programa de Pós-Graduação em Ciência e Engenharia de Materiais São Cristóvão SE ,Brazil

关键词: PHBV;    attapulgite;    nanocomposites;    biodegradable polymer;   

DOI  :  10.1590/S1516-14392011005000046

来源: SciELO

【 摘 要 】

Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) - PHBV is a biodegradable polyester which has been studied as an option for the production of disposable goods. Attapulgite is a fibrous clay mineral. The aim of this work was to produce and characterize renewable resource derived-nanocomposites based on PHBV and organophilic attapulgite (MAT). The nanocomposites were characterized by XRD, SEM and thermal analysis. It was observed reduction in degree of crystallinity, in melting and glass transition temperatures and in thermal stability of polymer due to the addition of clay to PHBV matrix. The best results were obtained for PHBV films containing 3 and 5% MAT. These films presented a slight increase in processing window and decrease in crystalline temperature and in degree of crystallinity as compared to pure PHBV.

【 授权许可】

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