Advances in materials Research

  • 제3권3호
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  • Pages.175-183
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  • 2014
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  • 2234-0912(pISSN)
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  • 2234-179X(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

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Rubber bound phenolic antioxidant and its application in thermoplastic elastomer

  • Klinpituksa, Pairote (Department of Science, Faculty of Science and Technology, Prince of Songkla University) ;
  • Kiarttisarekul, Anyarat (Department of Rubber Technology and Polymer Science, Faculty of Science and Technology, Prince of Songkla University) ;
  • Kaesaman, Azizon (Department of Rubber Technology and Polymer Science, Faculty of Science and Technology, Prince of Songkla University)
  • 투고 : 2014.05.03
  • 심사 : 2014.06.24
  • 발행 : 2014.11.27
⟨ 이전 논문 다음 논문 ⟩

초록

Natural rubber bound phenolic antioxidant, 2,6-di-tert-butyl-4-vinylphenol (2,6-DBVP), was prepared from natural rubber and 2,6-DBVP in both solution and melt state. The 2,6-DBVP had been synthesized from 3,5-di-tert-butyl-4-hydroxybenzaldehyde and methyltriphenylphosphonium iodide ($MePPh_3I$) by Wittig reaction ($0^{\circ}C$ for 2 hrs, $N_2$ atmosphere). The conditions for preparation of natural rubber bound 2,6-DBVP (NR-DBVP) were optimized for both solution state (1 phr BPO and 8 phr 2,6-DBVP at $70^{\circ}C$ for 2 hrs) and for melt state (1 phr BPO and 8 phr 2,6-DBVP at $70^{\circ}C$ for 10 mins, with rotor speed of 60 rpm). A thermoplastic vulcanizate was obtained using a compatibilizer, polypropylene modified with phenolic resin (PhHRJ-PP), in a closed mixer ($180^{\circ}C$ for 3 mins, rotor speed 60 rpm). The antioxidant properties of vulcanized NR-DBVP, using phenolic as the vulcanization system, were similar to NR with the conventional antioxidant BHT. In addition, the antioxidant, water leaching property of the thermoplastic vulcanizate of NR-DBVP/PP were good in comparison to a NR blend with BHT; the morphologies of these thermoplastic vulcanizates were similar.

키워드

과제정보

연구 과제 주관 기관 : National Research Council of Thailand (NRCT)

참고문헌

  1. Al-Ghonamy, A.I. and Barakat, M.A. (2010), "Study of the effect of grafted antioxidant on the acrylonitrile-butadiene copolymer properties", Inter. J. Polym. Sci., 1-7.
  2. Al-Malaika, S. (1977), Reactive Modification Modifiers for Polymer, Chapmall & Hall, U.S.A., 266-267.
  3. Avirah, S.A. and Joseph, R. (1994), "Studies on natural rubber-bound diphenylamine antioxidant", Polym. Degrad. Stab., 46, 251-257. https://doi.org/10.1016/0141-3910(94)90058-2
  4. Avirah, S.A. and Joseph, R. (1995), "Studies on natural rubber bound para- phenylenediamine antioxidants in NBR", J. Appl. Polym. Sci., 57, 1511-1524. https://doi.org/10.1002/app.1995.070571211
  5. Blackley, D.C. (1997), Polymer Latices: Science and Technology, Springer, England, p. 73
  6. Cibulkova, Z., Simon, P. Lehocky, P. and Balko, J. (2005), "Antioxidant activity of p-phenylenediamine studied by DSC", Polym. Degrad. Stab., 87, 479-486. https://doi.org/10.1016/j.polymdegradstab.2004.10.004
  7. El-Wakil, A.A. (2007), "Study on effect of natural rubber-graft-1, 2-phenylenediamine as oxidation resistance for natural rubber", Polym-Plast. Technol. Eng., 46(6), 661-666. https://doi.org/10.1080/15583720701271443
  8. Klinpituksa, P., Hamad, A., Nakason, C. and Kaesaman, A. (2011), "Natural rubber bound 4-aminodiphenylamine antioxidant for rubber formulation improvement", Sci. J. UBU., 2, 66-71.
  9. Klinpituksa, P., Somkieowan, S., Waehamad, W. and Lopattananon, N. (2012), "Polymeric antioxidant based on natural rubber grafted with N-(4-hydroxyphenyl)maleimide", Adv. Mat. Res., 488-489, 211-215. https://doi.org/10.4028/www.scientific.net/AMR.488-489.211
  10. Nakason, C., Saiwari, S. and Kaesaman, A. (2006), "Rheological properties of maleated natural rubber/polypropylene blends with phenolic modified polypropylene and polypropylene-g-maleic anhydride copetibilizers", Polym. Test., 25, 413-423. https://doi.org/10.1016/j.polymertesting.2005.11.006
  11. Sulekha, P.B., Joseph, R. and George, K.E. (1999), "Studies on polyisobutylene bound para-phenylenediamine antioxidant in natural rubber", Polym. Degrad. Stab., 63, 225-230. https://doi.org/10.1016/S0141-3910(98)00096-2
  12. Sulekha, P.B. and Joseph, R. (2003), "Preparation and characterization of novel polymeric bound antioxidants and its use in natural rubber", J. Elast. Plast., 35, 85-97. https://doi.org/10.1177/009524403031638
  13. Sulekha, P.B., Joseph, R.J. and Manjooran, K.B. (2004), "New oligomer-bound antioxidants in natural rubber/polybutadiene rubber and natural rubber/styrene-butadiene blends", J. Appl. Polym. Sci., 93, 437-443. https://doi.org/10.1002/app.20427
  14. Wang, Y., Zeng, X., Li, H. and Guo, J. (2012), "Studies on extraction resistance of hydroxy terminated polybutadiene bound 2,2-thiobis-(4-methyl-6-tert-butylphenol) in NR vulcanizates", Asian J. Chem., 24(7), 3217-3222.

피인용 문헌

  1. Synthesis of antioxidant for natural rubber using new heterogeneous catalytic system vol.73, pp.12, 2014, https://doi.org/10.1007/s11696-019-00851-5