An Introduction to Biocomposites
Introduction
Biocomposites can offer a low energy and sustainable alternative to current manufacturing processes. When used in the correct application they can offer a good alternative to GRP.
Reinforcements
Natural fibre Reinforcements absorb CO2 throughtout their growing cycle. They
have good mechanical properties (similar to GRP) and their low density makes
them a good reinforcement for Biocomposites. Flax and Hemp are available in
many different weights of fabrics and weaves. Cellulose Matts are arriving in the
market place that offer improved mechanical properties.
Matrix
Bioresins offer a good low carbon and sustainable matrix. We are able to offer resins that are
approximately 70% free of petrol chemicals. At Natural Performance Composites we use multiple
bio-derived chemical compounds to produce optimum systems for a variety of applications.
Furans
Sugarcane derived thermoset resin systems in can work conjunction with short fibre
reinforcements providing increased fire retardant attributes for mass production.
Linseed oil
Low viscosity resins can be used for wet systems in high moisture environments.
Predominantly developed for the marine industry for low cost.
CNSL/BNSL
Cashew and Belawan Nut Shell Liquid feedstock contains natural properties comparable
to conventional epoxy systems along with the flexibility of a variety of production techniques.
Core Materials
Cork provides a good sustainable core and is available in a range of densities
down to approx 100 kg/M3. For higher performance new foams are coming to
the market with ‘cradle to cradle’ properties and lower densities.
Prepregs
Prepregs are available with a bioresin matrix with Carbon, Glass and Natural Fibres as
a reinforcement. They offer good structural properties and in certain laminates can offer
a bio-content of up to 90%.
