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Details van artikel 2 van 11 gevonden artikelen
| Titel: |
Effect of Different Diene Monomers on the Polyblend Systems Consisting of EPDM and EVA |
| Auteur: |
Ghosh, M. K. Tripathy, A. R. Das, C. K. |
| Verschenen in: |
International journal of polymeric materials |
| Paginering: | Jaargang 17 (1992) nr. 1-2 pagina's 17-33 |
| Jaar: |
1992-04-01 |
| Inhoud: |
Effect of third monomer (different dienes) on the cure characteristics, structures, properties, stability, fracture mechanism of melt-mixed blends of EPDM rubber and thermoplastic EVA copolymer are studied over the entire composition range in presence of Dicumyl Peroxide (DCP) as the curative 1, 4 HD containing EPDM has the decreasing effect on the ultimate extent of curing the blends up to around 50% of EVA and then slightly increases; however, ENB has just opposite effect on the state of cure. But increasing effect was observed in case of DCPD containing EPDM. Presence of DCPD decreases the scorch safety as EPDM/EVA ratio decreases. Up to 40% EVA scorch time increases and then decreases at higher level for 1, 4 HD. For ENB containing EPDM the scorch time initially decreases, then increases and remains constant at higher level. Activation energy of all the blends for 1, 4 HD and ENB containing EPDMs and EVA lie in between that of pure EPDM and EVA. But it is true up to 40% of EVA loading in case of DCPD containing EPDM. 1, 4 HD contribute least and DEPD contribute to a greater extent than ENB towards the interfacial adhesion, it seems. At a particular EPDM/EVA blend ratio, 1, 4 HD-containing EPDM suffer greater weight loss than DCPD and ENB containing EPDMs. SEM study suggests the different modes of failure depending on diene content of EPDM as also confirmed by X-ray analysis. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 2 van 11 gevonden artikelen
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