Preparation and Properties of Organokaolin Natural Rubber Latex Base Vulcanisate
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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Authors
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
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Abstract
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.
Keywords
Natural Rubber (NR), Hexadecyl trimethylammonium bromide (CTAB), Cation Exchange Capacity (CEC), Cure Properties, Vulcanisate Properties
To cite this article
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. doi: 10.11648/j.am.20150404.11
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