Anti-static composites

The main current products in the field of biopolymers are (a) composite materials for special and high quality performance applications, (b) fashion and comfort/hygiene where their silky feel, breath ability and anti-static characteristics create a value over and above the environmental aspects (e.g., sports wear... 

To produce conduction by the first method in an otherwise non-conducting polymer, the required concentration of metallic particles is likely to be greater than about 20% by volume, or 70% by weight. This high particle concentration is necessary in order to achieve continuity of conducting material from one side of the polymer sample to the other. Such high concentrations tend to destroy some of the desirable mechanical properties of the polymer, but composites of this kind are used in conducting paints and in anti-static applications. Conductivities of order 6 x 10 m ... 

Static evaluation of HTPB based composite propellants with potential anti-oxidants, unpublished work. 

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