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Physico-mechanical properties of modified kaolin clay filled rubber compounds

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dc.contributor.advisor Gunapala, O
dc.contributor.advisor Gunapala, PY Ranasinghe, ARMWWK 2011-06-15T10:21:42Z 2011-06-15T10:21:42Z
dc.identifier.citation Ranasinghe, A.R.M.W.W.K. (2001). Physico-mechanical properties of modified kaolin clay filled rubber compounds [Master's theses, University of Moratuwa]. Institutional Repository University of Moratuwa.
dc.description.abstract An attempt has made to activate the inert structure or Rubber grade kaolin clays through ion-exchange process. Counter ions absorbed by unsatisfied silicon. oxygen and hydroxyl ions at the edges of planar surfaces of kaolinite mineral to preserve electrical neutrality were replaced with complex organic ions containing active functional groups (amine, hydroxyl, carboxyl) in their organic radicals. Strongly attached to the clay surface these complex ions project their organic aryl or alkyl radicals outwards to suspending medium rubber matrix making inorganic kaolin surface effectively organic and therefore hydrophobic one. Such change in kaolin surface facilitated rubber-filler interaction owing to better wetting of the filler surface with organic rubber polymer and formation of sufficient density grafted polymer layer bonding the rubber matrix to filler. Carried out physico-mechanical testing of tilled rubber compounds showed that modification or kaolin with chosen basic electrolytes ionized in aqueous medium was effective. Increase in strength characteristics has made possible in commercial practicability of rubber formulation technology the substitution of expensive reinforcing fillers with lowest in cost appropriately modified kaolin Clay.
dc.language.iso en en_US
dc.subject RUBBER-Fillers
dc.subject KAOLIN
dc.title Physico-mechanical properties of modified kaolin clay filled rubber compounds
dc.type Thesis-Abstract
dc.identifier.faculty Engineering en_US MSc en_US
dc.identifier.department Department of Chemical Engineering en_US 2001
dc.identifier.accno 74446 en_US

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