Deakin University
Browse

File(s) under permanent embargo

Thermal degradation of natural rubber/ZNO nanocomposites

conference contribution
posted on 2008-01-01, 00:00 authored by Puwang Li, M Lu, M Huang, Zheng Peng, Lingxue KongLingxue Kong
Nanoparticies have been widely used to enhance the properties of natural rubber (NR). In the present paper a novel nanocomposite was developed by blending nano-ZnO slurry with prevulcanized NR latex, and the thermal degradation process of pure NR and NR/ZnO nanocomposites with different nano-ZnO loading was studied with a Perkin Elemer TGA-7 thermogravimetric analyzer. The thermal degradation parameters of NR/ZnO (2 parts ZnO per hundred dlY rubber) at different heating rates (Bs) were studied. The results show that the thermal degradation of pure NR and NR/ZnO nanocomposites in nitrogen is a one-step reaction. The degradation temperatures of NR/ZnO nanocomposite increase with an increasing B. The peak height (Rp) on the differential thermogravimetric curve increases with the increase of B. The degradation rates are not affected significantly by B, and the average values of thermal degradation rate Cp and Cf are 44.42 % and 81.04 %, respectively. The thermal degradation kinetic parameters are calculated with Ozawa-Flynn-Wall method. The activation energy (E) and the frequency factor (A) vary with ecomposition degree, and can be divided into three phases corresponding to the volatilization of low-molecular-weight materials, the thermal degradation ofNR main chains and the decomposition of residual carbon.

History

Event

Asia-Pacific Conference on Materials Processing (8th : 2008 : Guilin, China, and Guangzhou, China)

Pagination

996 - 1001

Publisher

Frontiers of Design and Manufacturing

Location

Guilin-Guangzhou, China

Place of publication

Riverwood, N.S.W.

Start date

2008-06-15

End date

2008-06-20

ISBN-13

9780958069298

Language

eng

Publication classification

E1 Full written paper - refereed

Copyright notice

2008, APCMP

Editor/Contributor(s)

C Wang, X Li, J Wang

Title of proceedings

APCMP 2008 : Proceedings of the 8th Asia-Pacific conference on materials processing

Usage metrics

    Research Publications

    Categories

    No categories selected

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC