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Please use this identifier to cite or link to this item: http://dspace.unimap.edu.my:80/xmlui/handle/123456789/35158

Title: The effect of feldspar loading on curing characteristics, mechanical properties, swelling behaviour and morphology of natural rubber vulcanizates
Authors: Hakimah, Osman, Dr.
Azlan, Ariffin
Hanafi, Ismail, Prof. Dr.
???metadata.dc.contributor.url???: hakimah@unimap.edu.my
hanafi@eng.usm.my
azlan@eng.usm.my
Keywords: Curing characteristics;Feldspar;Mechanical properties;Natural rubber;Swelling behaviour
Issue Date: 2005
Publisher: Taylor and Francis Inc.
Citation: International Journal of Polymeric Materials and Polymeric Biomaterials, vol.54(1), 2005, pages 43-62
Abstract: Feldspar is being used herein as a filler in natural rubber vulcanizates. Two different types of natural rubber, SMR L and ENR 50 having 0 and 50 mol% of epoxide groups and semi-efficient vulcanization were used. The scorch time, (t2) and cure time, (t90) of both rubber vulcanizates slightly increased with increasing feldspar loading. At a similar feldspar loading, the ENR 50 vulcanizates showed shorter t2 and t90 than SMR L vulcanizates. Besides t2 and t90, maximum torque, (MHR) and torque difference (MHR - ML) were also investigated. Results indicate that MHR and MHR - ML increase for both rubbers with increasing feldsparloading. Swelling test results showed a reduction in the swelling percentage for both rubbers with increasing feldspar loading. At a similar filler loading, SMR L vulcanizates showed lower swelling percentage than ENR 50 vulcanizates. The mechanical properties such as tensile strength (up to certain filler loading), tensile modulus and hardness increased with increasing feld-spar loading for both rubbers. However, at a similar feldspar loading, the mechanical properties of SMR L vulcanizates are higher than ENR 50 vulcanizates.
Description: Link to publisher's homepage at http://www.tandfonline.com/
URI: http://www.tandfonline.com/doi/abs/10.1080/.U5GG_YaQZYY
http://dspace.unimap.edu.my:80/dspace/handle/123456789/35158
???metadata.dc.identifier.url???: 10.1080/00914030390245929
ISSN: 0091-4037
Appears in Collections:Hakimah Osman, Dr.

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