Magnetically tailoring the short fibre reinforcement of Natural Rubber. Stanier, D., C., Patil, A., J., Rahatekar, S., S., & Ciambella, J. In RubberCon2014, 2014.
abstract   bibtex   
Natural Rubber composites containing magnetically oriented reinforcements are assessed to determine the enhancements in mechanical properties. Nickel coated chopped carbon fibres demonstrate a reinforcement effect on natural rubber composites that is shown by uniaxial deformations. This reinforcement efficiency can be increased by taking advantage of the magnetic nickel coating on the microfibres and tailoring the orientation with an electromagnet, whereby the magnetic particles orientate themselves parallel to the magnetic field lines. Orientation of the particles during the preparation of the samples is made possible by adding them to a pre-vulcanised liquid latex solution and applying a magnetic field before the material dries. Comparisons are made between the effects of an isotropic dispersion and orthotropic orientation (oriented at angles between 0 o and 90 o to the loading direction) and show that there is an increase in stiffness when the fibres are oriented longitudinally and transversely to the loading direction, the latter caused by a Poisson effect. Microscopy is used to evaluate the state of dispersion, orientation and length of the fibres; this information is then used with two micro-mechanical models that take into account the distributions of the fibre length and fibre orientation.
@inProceedings{
 title = {Magnetically tailoring the short fibre reinforcement of Natural Rubber},
 type = {inProceedings},
 year = {2014},
 city = {Manchester},
 id = {79e8fb4d-d1ab-3362-bfd0-1640aaef769c},
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 last_modified = {2017-03-13T21:14:16.185Z},
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 citation_key = {Stanier2014a},
 abstract = {Natural Rubber composites containing magnetically oriented reinforcements are assessed to determine the enhancements in mechanical properties. Nickel coated chopped carbon fibres demonstrate a reinforcement effect on natural rubber composites that is shown by uniaxial deformations. This reinforcement efficiency can be increased by taking advantage of the magnetic nickel coating on the microfibres and tailoring the orientation with an electromagnet, whereby the magnetic particles orientate themselves parallel to the magnetic field lines. Orientation of the particles during the preparation of the samples is made possible by adding them to a pre-vulcanised liquid latex solution and applying a magnetic field before the material dries. Comparisons are made between the effects of an isotropic dispersion and orthotropic orientation (oriented at angles between 0 o and 90 o to the loading direction) and show that there is an increase in stiffness when the fibres are oriented longitudinally and transversely to the loading direction, the latter caused by a Poisson effect. Microscopy is used to evaluate the state of dispersion, orientation and length of the fibres; this information is then used with two micro-mechanical models that take into account the distributions of the fibre length and fibre orientation.},
 bibtype = {inProceedings},
 author = {Stanier, D C and Patil, A J and Rahatekar, S S and Ciambella, J},
 booktitle = {RubberCon2014}
}

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