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M. Zaborski, L Śusarski



Interface interactions in elastomeric composites


Polimery 1998, No 7-8, 465


DOI: dx.doi.org/10.14314/polimery.1998.465


Summary

Elastomers are used as composites that are filled with reinforcing highly dispersed fibrous or isotropic fillers. Interface interactions were studiem in the elastomer—filler system. Fillers were found to contribute the high er dispersive component of the surface energy than do the elastomers and Hus to exert the stronger reinforcement effect. Low-M constituents of elastomer composites, especially crosslinkers and accelerators, were found to adsorb on the surface of filler particles whereby they can affect the topology of the forming network and thus the elastomer properties. The more the real elastomer network departs from ideality, the stronger is the filler reinforcing effect. Unifilled vulcanizates were also examined. The crosslink distribution in the elastomer matrix is unlikely to follow the Gaussian distribution pattern. Peroxide- cured EPM containing dimaleates (Table 1) were found to contain multifunctional ionic clusters. The mechanical properties are distincly affected by the rate of sample deformation.


Keywords: filler types, spatial network of cured elastomers, mechanical properties of cured EPM elastomers, filler surface energy


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