Journal Published Online: 26 July 2024
Volume 13, Issue 1

Effect of Halloysite Nanoclay on the Properties of Castor Oil–Based Polyurethane Synthesized by Microwave-Assisted Method

CODEN: MPCACD

Abstract

A series of castor oil–based polyurethane (PU) with and without the incorporation of halloysite nanoclay (HNT) were prepared via conventional method using oil bath and with the aid of microwave radiation at varying temperatures. The PUs were characterized by using attenuated total reflectance–Fourier transform infrared spectroscopy (ATR-FTIR), thermogravimetric analysis, X-ray diffractometry, and transmission electron microscopy. The ATR-FTIR spectra of PUs indicated complete polymerization by the disappearance –NCO peak at 2,270 cm−1 with a shorter reaction time of ≈130 min by using microwave-assisted method compared to using conventional method (≈450 min) at the same reaction temperature of 55°C. Compared to pure HNT with d-spacing of ≈6.98 nm, an increment of d-spacing for HNT incorporated PUs synthesized by both conventional and microwave methods indicated the intercalation of PU chains within HNT layers. The sharper diffraction peak of castor oil–based PU with HNT synthesized by conventional method at 2θ = 11.6° compared to microwave-assisted method at 2θ = 11.9° indicated the formation of more crystalline PU nanocomposites by conventional method and modification of the surface morphology occurred with microwave radiation.

Author Information

Wong, Kai Yi
Department of Physical Science, Faculty of Applied Sciences, Tunku Abdul Rahman University of Management and Technology, Setapak, Kuala Lumpur, Malaysia
Chia, Min Rui
Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor Darul Ehsan, Malaysia
Teh, Geok Bee
Southern University College, Jalan Selatan Utama, Skudai, Johor, Malaysia
Phang, Sook-Wai
Department of Physical Science, Faculty of Applied Sciences, Tunku Abdul Rahman University of Management and Technology, Setapak, Kuala Lumpur, Malaysia
Gan, Seng Neon
Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
Sin, Sau Leng
Department of Physical Science, Faculty of Applied Sciences, Tunku Abdul Rahman University of Management and Technology, Setapak, Kuala Lumpur, Malaysia
Pages: 14
Price: $25.00
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Stock #: MPC20230123
ISSN: 2379-1365
DOI: 10.1520/MPC20230123