Cambridge National R105 R109 engineering design and manufacture revision notes.

1. Eco-materials

2. Thermoplastic Composite
A thermosetting plastic which is blended with recycled materials before
injection moulding. Recyclates that are currently dosed in include; newsprint,
denim, birch wood, coconut fibres, and bagasse.

3. Treeplast®
An injection mouldable bio-polymer made from a blend of corn starch and natural
cellulose extracted from wood waste. It is lightweight and available in a variety of
colours. Treeplast® also possesses shock absorption properties similar to A.B.S.
and therefore has many potential design applications.

4. Aluminium Foam
A lightweight foamed metal Originally developed with aeronautical applications in
mind, this material has great casting capabilities. We like it because it achieves great
volume and strength whilst using minimal resources.
In fact the honeycomb effect found within the foam bubble matrix actually
increases the structural integrity of the material due to the random diffusion of
stress lines.
http://www.kingston.ac.uk/~kx19789/rematerialise/html_and_flash/index-type-wood.htm

5. http://www.nigelsecostore.com/acatalog/eco-furniture.html