Comparative study of the effect of TiO2 and ZnO on the crystallization of PHB-Reference-Cited by-同舟云学术

Comparative study of the effect of TiO2 and ZnO on the crystallization of PHB

Published:2017-10-02 Issue:4 Volume:22 Page:
ISSN:1517-7076
Container-title:Matéria (Rio de Janeiro)
language:
Short-container-title:Matéria (Rio J.)

Author:

Jaques Nichollas Guimarães¹,Silva Ingridy Dayane dos Santos¹,Barbosa Neto Manoel da Cruz¹,Diniz Rayane Karoline Melo¹,Wellen Renate Maria Ramos¹,Canedo Eduardo Luis²

Affiliation:

1. Universidade Federal da Paraíba - UFPB, Brasil

2. Universidade Federal de Campina Grande - UFCG, Brasil

Abstract

ABSTRACT PHB/TiO2 and PHB/ZnO compounds were prepared in a laboratory internal mixer. Crystallization was investigated by differential scanning calorimetry (DSC) with heating and cooling rates ranging from 5 to 30 °C/min. Fractured surface of selected samples was analysed by scanning electron microscopy (SEM). From the SEM images, it was observed that ZnO and TiO2 nanoparticles were properly dispersed in the PHB matrix. DSC studies revealed that the addition of TiO2 and ZnO changed the temperature and crystallization rate but did not affect the total crystallinity significantly. In general, TiO2 behaved as nucleating agent greatly influencing the PHB crystallization.

Publisher

FapUNIFESP (SciELO)

Subject

General Physics and Astronomy,General Materials Science,General Chemistry

Link

http://www.scielo.br/pdf/rmat/v22n4/1517-7076-rmat-S1517-7076201700040214.pdf

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