La Trobe
2019_Lih-Jiun Yu_Defence Technology.pdf (1.53 MB)

Magnetic, thermal stability and dynamic mechanical properties of beta isotactic polypropylene/natural rubber blends reinforced by NiZn ferrite nanoparticles

Download (1.53 MB)
journal contribution
posted on 17.01.2021, 23:14 by Lih-Jiun Yu, Sahrim Hj Ahmad, Ing Kong, Mouad A Tarawneh, Shamsul Bahri Bin Abd Razak, Elango Natarajan, Chun Kit Ang
© 2019 The Authors The dispersion of magnetic nanoparticles in matrix is crucial to ensure optimum performance of the composite. The difficulty level of achieving good dispersion is further increase when a multi-phases of matrix is present. A pre-coating technique of magnetic nanoparticles with polypropylene using ball-mill prior to melt-blending process was employed to prepare a multi-phases thermoplastic natural rubber composite. The effect of filler loading (2 wt%-10 wt%) on morphology, structure, magnetic properties, thermal stability and dynamic mechanical properties of the composites were investigated. It was found that the NiZn ferrite nanoparticles act as nucleating agent to form beta isostatic polypropylene thermoplastic composites. The composites' magnetic properties are directly dependent on the filler concentration. The dispersion of magnetic fillers in polymer matrix plays role in affecting the magnetic properties and thermal stability. The preference of filler to locate at amorphous phase has distorted the chain orientation of natural rubber and polypropylene. Hence, the polymorphism and crystallinity of the matrix varied as the filler loading increased, affecting the dynamic mechanical properties. It was found that 8 wt% NiZn nanocomposite exhibits highest E’ and tanδ, indicating the dynamic mechanical properties of NiZn nanocomposite are affected by β-phase degree.

Funding

The authors would like to thank the support from the National Science Fund (NSF), MOSTI, UKM and UCSI.

History

Publication Date

01/01/2019

Journal

Defence Technology

Volume

15

Issue

6

Pagination

6p. (p. 958-963)

Publisher

Elsevier BV

ISSN

2214-9147

Rights Statement

The Author reserves all moral rights over the deposited text and must be credited if any re-use occurs. Documents deposited in OPAL are the Open Access versions of outputs published elsewhere. Changes resulting from the publishing process may therefore not be reflected in this document. The final published version may be obtained via the publisher’s DOI. Please note that additional copyright and access restrictions may apply to the published version.