Morphology physical and flame retardant properties of epoxidised natural rubber (ENR) organoclay compound

Dayang Habibah Abang Ismawi Hashim, . and Nik Intan Nik Ismail, . and Shamsul Bahri Abd Razak, . Morphology physical and flame retardant properties of epoxidised natural rubber (ENR) organoclay compound. pp. 91-100. ISSN 1511-1768

Epoxidised natural rubber (ENR) has good oil resistance and gas barrier properties. Despite a number of superior qualities one of the drawbacks that limits usage of ENR is its inherent high flammability. Currently much attention is focused on the use of layered silicates (clay) to produce materials with enhanced flame retardance and superior physical properties. Therefore in this study we investigate the effect of nanoclay on the flame behaviour and physical properties of ENR 50. Several tests including limiting oxygen index (LOI) underwriters laboratory (UL-94) tensile strength and morphology characterisation were performed on ENR samples containing three different types of clay. It was found that flame from ENR 50 filled with 10 p.p.h.r. for all types of clay tested could not self extinguish. According to the vertical burning test UL-94 there is no classification or rating given to such materials. Similarly the incorporation of clay in ENR did not enhance the LOI value. The improvement in physical and barrier properties of ENR containing C15A indicated that an exfoliated structure was formed in the rubber matrix as supported by the X-ray diffraction (XRD) and transmission electron microscopy (TEM) results.

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Abstract

Epoxidised natural rubber (ENR) has good oil resistance and gas barrier properties. Despite a number of superior qualities one of the drawbacks that limits usage of ENR is its inherent high flammability. Currently much attention is focused on the use of layered silicates (clay) to produce materials with enhanced flame retardance and superior physical properties. Therefore in this study we investigate the effect of nanoclay on the flame behaviour and physical properties of ENR 50. Several tests including limiting oxygen index (LOI) underwriters laboratory (UL-94) tensile strength and morphology characterisation were performed on ENR samples containing three different types of clay. It was found that flame from ENR 50 filled with 10 p.p.h.r. for all types of clay tested could not self extinguish. According to the vertical burning test UL-94 there is no classification or rating given to such materials. Similarly the incorporation of clay in ENR did not enhance the LOI value. The improvement in physical and barrier properties of ENR containing C15A indicated that an exfoliated structure was formed in the rubber matrix as supported by the X-ray diffraction (XRD) and transmission electron microscopy (TEM) results.

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Item Type:	Article
AGROVOC Term:	Natural rubber
AGROVOC Term:	morphology
AGROVOC Term:	Flammability
AGROVOC Term:	Silicates
AGROVOC Term:	Clay
AGROVOC Term:	Physical properties
AGROVOC Term:	Oxygen
AGROVOC Term:	diffraction
AGROVOC Term:	Electron microscopy
AGROVOC Term:	Permeability
Geographical Term:	Malaysia
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	28 Apr 2025 00:42
URI:	http://webagris.upm.edu.my/id/eprint/22973

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