Effects of Sodium Dodecyl Sulfate Filler Treatment and Thermo-Oxidative Ageing on the Properties of Poly(Vinyl Chloride)/Epoxidized Natural Rubber/Kenaf Core Powder Composites

Abstract:

An experimental study was conducted to investigate the influence of thermo-oxidative ageing on the tensile properties of PVC/ENR/KCP composites. Sodium dodecyl sulfate filler treatment was also carried out to evaluate the effect of filler treatment. The composites were prepared by melt compounding using Haake Polydrive internal mixer at 140 °C and 50 rpm. Compression-moulded samples were subjected to fracture surface morphology analysis and thermo-oxidative ageing for 3, 5 and 7 days. Thermo-oxidative ageing test indicates that after 3 days of exposure to heat, tensile strength increases, which is due to the further cross-linking reaction. With further exposure for 5 days and 7 days, the tensile strength is reduced probably due to the reduction in flexibility of the cross-link, which affect the stress distribution in the composites.

• Periodical: Key Engineering Materials (Volume 694)
• Pages: 13-17
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.694.13
• Online since: May 2016
• Authors: Rohani Abdul Majid, Ismail Hanafi*, Mat Taib Razaina
• Keywords: Kenaf Core, PVC, Sodium Dodecyl Sulfate

References

[1] H.M. Akil, M.F. Omar, A.A.M. Mazuki, S. Safiee, Z.A.M. Ishak, A. Abu Bakar, Kenaf fiber reinforced composites: A review, Mater. Des. 32 (2011) 4107-4121.

DOI: 10.1016/j.matdes.2011.04.008

[2] H.D. Rozman, G.S. Tay, R.N. Kumar, A. Abusamah, H. Ismail, Z.A. Mohd Ishak, The effect of oil extraction of the oil palm empty fruit bunch on the mechanical properties of polypropylene–oil palm empty fruit bunch–glass fibre hybrid composites, Polym. Plast. Technol. Eng. 40 (2001).

DOI: 10.1081/ppt-100000058

[3] H. Ismail, M.N. Nasaruddin, H.D. Rozman, The effect of multifunctional additive in white rice husk ash filled natural rubber compounds, Eur. Polym. J. 35 (1999) 1429-1437.

DOI: 10.1016/s0014-3057(98)00223-7

[4] S. Siriwardena, H. Ismail, U.S. Ishiaku, M.C.S. Perera, Mechanical and morphological properties of white rice husk ash filled polypropylene/ethylene-propylene-diene terpolymer thermoplastic elastomer composites, J. Appl. Polym. Sci. 85 (2002).

DOI: 10.1002/app.10713

[5] J. George, M.S. Sreekala, S. Thomas, A review on interface modification and characterization of natural fiber reinforced plastic composites, Polym. Eng. Sci. 41 (2001) 1471- 1485.

DOI: 10.1002/pen.10846

[6] U.S. Ishiaku, Z.A. Mohd Ishak, H. lsmail, M. Nasir, The effect of di-2-ethylhexyl phthalate plasticizer on the thermo-oxidative ageing behaviour of poly (vinyl chloride)/epoxidized natural rubber blends, Polym. Int. 41 (1996) 327-336.

DOI: 10.1002/(sici)1097-0126(199611)41:3<327::aid-pi618>3.0.co;2-3

[7] U.S. Ishiaku, B.T. Poh, Z.A. Mohd lshak, D. Ng, Mechanical and thermo-oxidative properties of blends of poly(vinyl chloride) with epoxidized natural rubber and acrylonitrile butadiene rubber in the presence of an antioxidant and a base, Polym. Int. 39 (1996).

DOI: 10.1002/(sici)1097-0126(199601)39:1<67::aid-pi452>3.0.co;2-t

[8] K.S. Chun, H. Salmah, A. Fatin Nasihah, Characterization and properties of recycled polypropylene/coconut shell powder composites: effect of sodium dodecyl sulfate modification, Polym. Plast. Technol. Eng. 52 (2013) 287-294.

DOI: 10.1080/03602559.2012.749282

[9] H. Nabil, H. Ismail, A.R. Azura, Comparison of thermo-oxidative ageing and thermal analysis of carbon black-filled NR/virgin EPDM and NR/recycled EPDM blends, Polym. Test. 32 (2013) 631-639.

DOI: 10.1016/j.polymertesting.2013.03.019

[10] J. C. Arnold, B. Maund, The properties of recycle PVC bottle compounds. 1: Mechanical performances, Polym. Eng. Sci. 39 (1999)1234-1242.

DOI: 10.1002/pen.11510