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I'm learning about composite resins, and the various filler additives, but I wondered about the relation between the two. For example....

An epoxy resin has poor adherence to a material such as polyethylene, but it has strong adherence to a material such as polyamide 66. If you have an epoxy resin with powdered polyethylene, vs polyamide 66, beyond the characteristics of the powdered material itself, what impact does the resins ability to adhere to the powered filler have?

J. M. Becker
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Generally composites with longer fibers are more affected by the fiber matrix interface. The smaller the reinforcement particulate size usually the effect from bad interface is less pronounced. However again that has to do with the properties of the matrix e.g energy for crack propagation in the bulk matrix material.

NMech
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