Advances in Materials
Volume 4, Issue 4, August 2015, Pages: 75-79
Received: May 14, 2015;
Accepted: Jun. 21, 2015;
Published: Jul. 18, 2015
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Ogbemudia Joseph Ogbebor, Research Support Services Department, Rubber & Gum Tech. / Quality Control Division, Rubber Research Institute of Nigeria, Benin City, Nigeria
Felix Ebhodaghe Okieimen, Center for Biomaterials Research, University of Benin, Benin City, NigeriaCenter for Biomaterials Research, University of Benin, Benin City, Nigeria
David Ehioghilen Ogbeifun, Center for Biomaterials Research, University of Benin, Benin City, Nigeria
Uzoma Ndubuisi Okwu, Research Support Services Department, Rubber & Gum Tech. / Quality Control Division, Rubber Research Institute of Nigeria, Benin City, Nigeria
Natural rubber (NR) latex-organokaolin compounds have been investigated. The intercalated kaolin (100% CEC-CTAB of clay) was used in aqueous rubber latex dispersion, from which a coagulum was obtained. The coagulum was used in natural rubber compounds and evaluated for its cure: scorch; ts1, optimum cure; t90 min, minimum (ML) and maximum (MH) torque and mechano-physical properties viz: M100, M300, EB (%), hardness and abrasion in mg/1000 rev. The scorch and optimum cure indicated a progressive drop with addition of organokaolin in natural rubber latex based compounds. Vulcanisate mechanical properties generally showed increase as organokaolin loading increased. A correlation between the measure of extent of vulcanization (MH-ML) and properties such as tensile strength, elongation at break, abrasion and hardness showed that the extent of crosslinking as a result of rubber-filler interaction of the natural rubber based compounds increased as organokaolin loading increased.
Ogbemudia Joseph Ogbebor,
Felix Ebhodaghe Okieimen,
David Ehioghilen Ogbeifun,
Uzoma Ndubuisi Okwu,
Preparation and Properties of Organokaolin Natural Rubber Latex Base Vulcanisate, Advances in Materials.
Vol. 4, No. 4,
2015, pp. 75-79.
Murray H.H., (2006). Current industrial applications of clays. Clay Sci. 12: 106-112
Murray H.H., In E. Dominguez, G. Mas and F. Gravers Eds., A Clay Odessey, Elsevier, 2003, pp. 3-10.
McCrum N.G., Buckley C.P., and Bucknall C.B., Principles of Polymer Engineering, Oxford Univ. Press, New York, (2010), p. 283.
Murray H.H. and Kogel J.E. (2005). Engineered clay products for the paper industry, J. Appl. Clay. Sci. 29: 199-206.
Kulshreshtha A.K, Maiti A.K., Choudhary M.S, Rao, K.V (2006). Nano-addition of raw bentonite enhances polypropylene (PP) properties. .J. Appl. Polym. Sci. 99, 1004-1009.
Zidelkheir B, Abdelgoad M. (2008). Effect of surfactant agent upon the structure of montmorillonite. J. Therm. Anal., Calorim. 94: 181-187
Bakshi M.S., Sood, R. (2004). Cationic surfactant-poly(amido amine) dendrimer interactions studied by krafft temperature measurements.Physiochem.Eng. Aspects. 233: 203-210.
Alex, R., Nah C., (2006). Preparation and characterization of organoclay-rubber nanocomposites via a new route with skim natural rubber latex. J. Appl. Polym. Sci. 102: 3277-3285.
Yang H, Zheng X, Huang W, Wu K, (2008). Modification of montmorillonite with cationic surfactant and application in electrochemical determination. Coll. & surf. B: Biointerfaces 65: 281-284
Zhou L, Chen H, Jiang X, Lu F, Zhou Y, Yin W, Ji X, (2009). Modification of montmorillonite surfaces using a novel class of cationic Gemini surfactants. J. coll. & inter. Sci. 332: 16-21.
López-Manchado M A, Arroyo M, Herrero B. (2003).Organo-montmorrillonite as substitute of carbon black in natural rubber compounds. Polymer 44:2447-2453
Paul DR, Zeng QH, Yu AB, Lu GQ. (2005).The interlayer swelling and molecular packing in organoclays .J. Colloid. & Interface. Sci. 292: 462-468.
Ahmadi S.J, G’sell C,Huang Y, Ren N, Mohaddespour A, Hiver J. (2009). Mechanical properties of NBR/clay nanocomposites by using a novel testing system. Comp. Sci. Technol. 60: 2566-2572.
Sukumar R, Menon ARR. (2007).Organomodified kaolin as reinforcing filler for natural rubber. J. Appl. Polym. Sci. 107: 3476-3483.
Yahaya LE, Adebowale KO, Menon ARR, Olu-Owolabi BI.(2012). Natural rubber/organoclay nanocomposite from tea (Camellia Sinensis) seed oil derivative. Am. J. Mat. Sci. 2: 1-5.
Ogbebor OJ, Okieimen FE, Okwu UN & Ogbeifun DE. (2015). Organomodified kaolin as filler for natural rubber. Chem. Ind. Chem. Eng. Quart. : doi/1451-9372/2015
Vanderbilt RT (1990). The Vanderbilt Latex Handbook, 3rd Ed., R. T. Vanderbilt Co., Inc., Norwalk, CT. pp.
Amarasiri A, Ratnayake UN, De Silva UK, Walpalage S and Siriwardene S. (2013). Natural rubber latex-clay nanocomposite: use of montmorillonite clay as an alternative for conventional CaCO3. J. Natn. Sci. 41 (4): 293-302.
Jacob A, Kurian P, & Aprem AS. (2008). Transport properties of natural rubber latex layered clay nanocomposites. J. Appl. Polym. Sci., 108 4: 2623-2629.
ISO 3417 (2000-E) Rubber – Measurement of Vulcanisation Characteristics Disc Rheometer.
British Standards Institute, BS 903; Part A2: Determination of Tensile Stress-Strain Properties, (DIN 53504).
British Standards Institute, BS 903; Part A9: Determination of Abrasion Resistance.
British Standards Institute, BS 903, Part A57: Determination of Hardness, (ISO 7619).
Morton, M. (Ed)., Rubber Technology, Van Nostrand Reinhold, New York, 2005, pp. 100-120.
Iyasele JU, Okieimen FE, (2008). Rheological properties and state of cure of natural rubber compounded with blend of carbonized melon seed shell and carbon black J. Chem. Soc. Nig. 33: 162-165.
Wu Y.P., Wang Y.Q., Zang H.F., Yu D.S., Zhang L.Q., & Yang J. (2005). Rubber-pristine clay nanocomposites prepared by co-coagulating rubber latex and clay aqueous suspension. Comps. Sci. and Tech. 65 (7-8): 1195-1202.
Teh PL, MohdIshak ZA, Hashim AS, Karger-Kocsis J, Ishiaku US. (2006). Physical properties of natural rubber/organoclay nanocomposites compatibilized with epoxidized natural rubber. J. Appl. Polym. Sci., 100: 1083-1088.