Influence of carbon black and plasticisers on dynamic properties of isotropic magnetosensitive natural rubber

QC 20121017
The dynamic shear modulus of magnetosensitive (MS) natural rubber composites is experimentallystudied, where influences of carbon black, plasticiser and iron particle concentrations areinvestigated at various dynamic shear strain amplitudes and external magnetic fields within thelower structure borne frequency range. The iron particles embedded in natural rubber areirregularly shaped and randomly distributed; the plasticisers simplify the iron particle blendingprocess, while carbon black reduces the production costs and improves the mechanicalproperties. The results show that the relative MS effect on the shear modulus magnitude increaseswith increased plasticiser and iron particle concentration and decreases with increased carbonblack concentration. Furthermore, their relative contributions are quantified. Consequently, thestudy provides a basis for optimising the composition of MS natural rubber to meet a variety ofrequirements, including those of vibration isolation, a promising application area for MS materials.

Gil-Negrete, N.Department of Applied Mechanics, CEIT and Tecnun (University of Navarra) (författare)
Kari, LeifKTH,MWL Strukturakustik(Swepub:kth)u1et0yya (författare)
KTHMWL Strukturakustik (creator_code:org_t)

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