The Partial Replacement of Halloysite Nanotubes (HNTs) and Precipitated Silica by Recycled Poly(ethylene Terephthalate) Powder on Cure Behavior, Tensile Properties and Morphology of Natural Rubber Composites

Abstract:

In this article, halloysite nanotubes (HNTs) and precipitated silica were replaced by recycled polyethylene terephthalate powder (R-PET) in natural rubber composites. Five different compositions of NR/HNTs/R-PET and NR/Silica/R-PET composites [i.e. 100/20/0, 100/15/5, 100/10/10, 100/5/15, and 100/0/20 parts per hundred rubber (phr)] were prepared on a two-roll-mill. Comparison of the curing behavior, tensile properties, and morphological characteristics of natural rubber composites was studied. The results indicated that the replacement of HNTs and silica by R-PET decreased the tensile strength, tensile modulus, and elongation at break of composites, but NR/Silica/R-PET composites showed the lower trend than that NR/HNTs/R-PET did. The negative effect of these properties could be explained by the decrement of crosslink density, R-PET is unable to be transferred the stress due to the weal rubber-fillers interactions, and the reducing of ductility of rubber matrix. The curing results revealed that, with replacement of HNTs and Silica by R-PET, the scorch time (ts2) and cure time (tc90) were decreased. Scanning electron microscopy investigation of tensile fracture surfaces confirmed that co-incorporation of NR/HNTs/R-PET would improve the dispersion of R-PET and enhanced the interactions between fillers and NR matrix rather than NR/Silica/R-PET composites.

• Periodical: Key Engineering Materials (Volumes 471-472)
• Pages: 622-627
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.471-472.622
• Online since: February 2011
• Authors: H. Nabil, Ismail Hanafi, A.R. Azura
• Keywords: Halloysite Nanotubes, Natural Rubber (NR), Recycled Polyethylene Terephthalate, Silica

References

[1] P. Sae-oui, C. Sirisinha and P. Thaptong: J. Mater. Cycles. Waste. Manag. Vol. 11 (2009), p.168.

DOI: 10.1007/s10163-008-0230-4

[2] A.H. Charles in: Handbook of Plastics Technologies: The Complete Guide to Properties and Performance. Edition: 2, illustrated Published by McGraw-Hill Professional, New York, USA (2006).

[3] H. Ismail, H.D. Rozman, R.M. Jaffri and Z.A. Mohd Ishak: Euro. Polym. J. Vol. 33 (1997), pp.1627-1632.

[4] H. Ismail and F.S. Haw: J. Appl. Polym. Sci. Vol. 110 (2008), pp.2867-2876.

[5] F.E. Okieimen and J.E. Imanah: J. Appl. Polym. Sci. Vol. 100 (2006), p.2562.

[6] H. Ismail, O. Hakimah and J. Mariatti: J. Vinyl. Addi. Technol. Vol. 14 (2008), pp.142-143.

[7] M. Liu, B. Guo, M. Du, X. Cai and D. Jia:. Nanotechnol. Vol. 18(45) (2007), (art. No. 455703).

[8] N. Ning, Q. Yin, F. Luo, Q. Zhang, R. Du and Q. Fu: Polym. Vol. 48 (2007), p.7374.

[9] M. Liu, B. Guo, M. Du and D. Jia: Appl. Phys. A. Vol. 88 (2007), p.391.

[10] B.X. Yang, J.H. Shi, K.P. Pramoda and S. Hong Goh: Nanotechnol. Vol. 18(12) (2007), (art. No 12606).

[11] H. Ismail, P. Pasbakhsh, M.N. Ahmad Fauzi and A. Abu Bakar: Polym. Test. Vol. 27 (2008), pp.841-850.

[12] S. Rooj, A. Das, V. Thakur, R.N. Mahaling, A.K. Bhowick and G. Heinrich: Matt. Design. Vol. 31(2010), pp.2151-2156.

[13] S.R. Levis and P.B. Deasy: Intern. J. Pharm. Vol. 243 (2002), p.125.

[14] P. Pooria, H. Ismail, M.N. Ahmad Fauzi and A. Abu Bakar: J. App. Polym. Sci. Vol. 113 (2009), p.3910–3919.

[15] E. Joussein, S. Petit, G.J. Churchman, B.K.G. Theng, D. Righi and B. Delvaux: Clay Miner. Vol. 40 (2005), pp.383-426.

DOI: 10.1180/0009855054040180

[16] T.R. Curlee, Plastic Wastes: Management, Control, Recycling and Disposal, Environmental Protection Agency, USA (1991).

[17] D.S. Achilias and G.P. Karayannidis: Macromol. Mater. Eng. Vol. 292 (2007), pp.128-146.

[18] D.J. Moon, Y.J. Kimc, M. Lachemi and Y.W. Choi: Construc. Build. Mater. Vol. 23 (2009), p.2830.

[19] G. Burilloa, P. Herrera-Francob, M. Vazquez and E. Ademc: Radia. Phys. Chem. Vol. 63 (2002), p.242.

[20] Y. Zhang, W. Guo, H. Zhang and C. Wu: Polym. Degrad. Stab. Vol. 94 (2009), p.1136.

[21] A. Pegoretti, J. Kolarikb, C. Peroni and C. Migliaresi: Polym. Vol. 45 (2004), p.2752.

[22] A. Pegoretti, and A. Penati: Polym. Vol. 45 (2004), p.7996.

[23] Technical Report of Imerys Tableware Asia Limited, Available from http: /www. imerys-ceramics. com/Upload/Fichiers/Halloysite_table1. pdf.

[24] O. Lorenz and C.R. Parks: J. Polym. Sci. Vol. 50 (1961), pp.299-312.

[25] H.M. da Costa, L.L.Y. Visconte, R.C.R. Nunes and C.R.G. Furtado: J. Appl. Polym. Sci. Vol. 87 (2003), pp.1405-1413.

[26] H. Ismail, N. Rosnah and H.D. Rozman: Polym. Vol. 38 (1997), p.4059–4064.

[27] S. Wolff and M-J. Wang: Rubb. Chem. Technol. Vol. 62 (1992), pp.329-342.

[28] L. Qiuying, M. Yulu, W. Chifei and Q. Shengying: J. Macromol. Sci. Part B: Phys. Vol. 47 (2008), pp.838-843.

[29] H. Ismail, H.B. Hong, C.Y. Ping and H.P.S. Abdul Khalil: J. Thermoplastic Comp. Mater. Vol. 16 (2003), 121-137.

[30] H. Ismail, H.D. Rozman, R.M. Jaffri and Z.A. Mohd Ishak: Euro. Polym. J. Vol. 33 (1997), pp.1627-1632.