Characterization and properties of styrene butadiene rubber/recycled acrylonitrile-butadiene rubber (SBR/NBR) blends

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dc.contributor.authorZulkepli, Nik Noriman
dc.date.accessioned2015-07-29T07:27:16Z
dc.date.available2015-07-29T07:27:16Z
dc.date.issued2011
dc.description.abstractThe recycling or reuse of waste rubber from recycled acrylonitrile-butadiene rubber glove (recycled NBR glove) by means of blending together with synthetic rubber styrene butadiene rubber (SBR) can gives an opportunity as an alternative product. Results in first series indicated that SBR/NBRr blends particularly having NBRr content up to 15 phr, exhibited improvement in tensile strength, elongation at break, Eb and fatigue value compared with SBR/NBRv blends. Meanwhile, in second series SBRINBRr blends with the smallest size ofNBRr particles (Sl, 124- 334 f..tm) showed an improved overall cure characteristics and mechanical properties compared with all other blend ratios contains of bigger sizes ofNBRr particles [0.85 - 15.0 mm (S2) and direct sheeted form (S3)]. At third series, addition of 5 phr of trans-polyoctylene rubber (TOR) as compatibilizer improved the adhesion between NBRr and the SBR matrix, thus improving the compatibility of SBRINBRr blends. Most of cure characteristics and mechanical properties of compatibilised SBR/NBRr blends were improved compared with uncompatibilised SBRINBRr blends. Meanwhile in fourth series, the addition of 1 0 phr of epoxidized natural rubber (ENR-50) also enhanced the compatibility of the SBRINBRr blends. Overall cure characteristics and mechanical properties showed that SBRINBRr blends with the presence of ENR-50 have lower t90, t2 and ML and improved the tensile strength, hardness and thermal properties. At fifth series, the incorporation of Si69 has improved the cure characteristics such as lower t90 and ML. Overall improvement on mechanical properties such as tensile properties, fatigue and hardness of the blends with Si69 were influenced by the degree of crosslinked density as the silica content is increased. On sixth series the investigation on natural weathering test of all series of SBR/NBRr blends showed weakening in overall properties particularly after 6 months exposure. However, most of the SBR/NBRr blends with modification showed better tensile properties with variations of tensile retention.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/846
dc.language.isoenen_US
dc.subjectStyrene butadiene rubberen_US
dc.titleCharacterization and properties of styrene butadiene rubber/recycled acrylonitrile-butadiene rubber (SBR/NBR) blendsen_US
dc.typeThesisen_US
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