Covulcanization of elastomer blends with special reference to NR/EPDM blends

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Covulcanization of elastomer blends with special reference to NR/EPDM blends

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dc.contributor.author Suma, N
dc.contributor.author Dr.Rani,Joseph
dc.date.accessioned 2014-04-24T04:50:44Z
dc.date.available 2014-04-24T04:50:44Z
dc.date.issued 1992-07
dc.identifier.uri http://dyuthi.cusat.ac.in/purl/3635
dc.description Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology en_US
dc.description.abstract Attempts have been made to attain satisfactory network structures in each of the phases of a rubber blend by minimising the cure rate imbalance by employing methods such as grafting of accelerators to the slow curing rubber, chemically bonding the crosslinking agents to the rubber in which it has lower solubility, functionalisation of the slow curing rubber, masterbatching of the curing agents to the slow curing rubber etc. Functionalisation of the slow curing constituents of NR/IIR and NR/EIPDM blends is tried using novel reagents as the first part of this study. However, the crux of the present study is a more direct approach to attaining a covulcanized state in NR/IIR and NR/EPDM blends: Precuring the slow curing rubber (IIR or EPDM) to a low level when it can still blend with NR and then to ck) the final curing after blending with NR. TNM3 precuring is also likely to minimise the viscosity mismatch. Since a low level of resmmal crosslink density is likely to be present lJ1 reclaimed rubbers, blending heat resistant reclaimed rubber such as butyl reclaim with NR may also have the same effect of precuring IIR, and then blending with NR. Hence use of IIR reclaim for developing blends with NR is also proposed to be investigated in this study en_US
dc.description.sponsorship Cochin University of Science And Technology en_US
dc.language.iso en en_US
dc.publisher Cochin University of Science And Technology en_US
dc.subject Carboxylation pf IIR and EPDM en_US
dc.subject Precuring of IIR EPDM en_US
dc.subject Processability of NR/IIR and NR/EPDM blends en_US
dc.subject Utilisation of IIR tube reclaim for developing NR/IIR vlends en_US
dc.title Covulcanization of elastomer blends with special reference to NR/EPDM blends en_US
dc.type Thesis en_US


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