|
|
Materials
Cellular Developments work with a very wide range of
materials in both solid and cellular form. We undertake material development
should our standard materials be unsuitable to meet the criteria of a
particular project.
We
are very aware that careful selection of the elastomer is essential to
ensure that all design criteria are met. When selecting the type of rubber
to be used it is necessary to consider some or all of the following:
- Mechanical properties - eg. hardness, tensile strength, compression
set.
- Electrical properties - eg. resistivity, conductivity
- Thermal properties - eg. service temperature
- Environmental properties - eg. weathering and ozone resistance, radiation
resistance
- Chemical properties - eg. oil or acid resistance
- Costs - some rubbers are much more expensive than others, therefore
decisions have to be made whether durability is more important than
cost
- Process to be used - eg.1) thermoplastic rubbers moulded on convential
plastic injection equipment for high volume jobs, would be processed
using fast cycles, for lower cost and increased outputs. eg.2) Compression
moulding for single cavity prototype tools or single cavity production
tools
The following are just some of the thermoset rubber we can
offer, click on a name to see a list of properties:
We
also offer thermoplastic rubber (TPE/TPR) this material covers a very
wide range of polymer types and can offer the end user many advantages
such as, cost effective alternatives to conventional thermoset rubbers
and polymers which can be coloured.
*The information and data contained herein
are believed to be accurate and reliable, however it is the user's responsibility
to determine suitability of use. Cellular Developments Group or its Group
Companies make no warranties concerning fitness or suitability of its
products for a particular use or purpose |
CASE STUDY
EXAMPLES
ELECTRO OPTICS
Our brief was to produce a protective eyeguard for an application that
required no light to escape from the instrument until the users head
was pushed against the eyeguard.
It
also had to be resistant to various chemicals and radiation. To support
the users head, a metal insert was used to stiffen the moulding and
butyl rubber was selected for its chemical resistance properties.
Bellows were moulded to allow movement of the
eyeguard to operate flaps that opened to allow the light through the
lens.
|