Combine

Commingled Biomaterials from Nature

The Combine project aims to develop high performance bio-derived composites for structural applications by using innovative combinations of natural fibres and bio-plastics. Currently, natural fibres are only available as short fibres for injection moulding or as random mats for compression moulding, neither of which offer sufficient strength or stiffness for structural components. Natural fibre yarns are normally twisted which makes impregnation with viscous thermoplastic resins difficult.

In this project, hemp and flax fibres will be processed, spun into continuous filaments and woven into high performance fabrics. These will be combined with bio-plastics such as PLA and moulded into parts through vacuum bag moulding and compression moulding. Surface treatments will be used to enhance the bonding of the fibres to the resin. Joining and finishing techniques will be developed for the materials and environmental degradation, compostability and recyclability will be assessed.

The technology will be demonstrated by manufacturing and testing 3 case study components – a marine bar top lid, a marine wheelhouse roof and a mobile baby incubator. The project started in November 2006 and will take 30 months to complete. The total value of the project is £1,000,000.

Website

www.combineproject.org.uk/

Acknowledgements

The Combine project is part-funded through the DTI Technology Programme within the priority area of Design and Manufacture of Sustainable Products.