contents

technologies
 
editorial
news
press room
press service
information
trade fairs
classifieds
useful links

Glass fibre reinforced plastics

Plastic, or GRP for short (glass reinforced plastic), is a fibre-plastic compound consisting of a synthetic material, e.g. duroplastic unsaturated polyester resin (UP) and glass fibres. The compound can also consist of phenol-formaldehyde resin (PF), silicon resin (SI), melamine resin (MF), polyester resin (PTFE) or polyamide and glass fibres. A glass fibre is a long, thin fibre made of pure glass. Glass fibres are manufactured by drawing molten glass to form very thin threads (filaments).

Amongst other things, glass fibres are used to make glass fibre cables for transmitting data, but they are mainly used in the form of roving or textile fabric for heat and sound insulation, and for the construction of glass fibre reinforced plastics. These are some of today's most important construction materials. They are resistant to aging and to the effects of the weather, they are chemically resistant and some are inflammable. Their high elasticity is used to significantly improve the mechanical characteristics of synthetic materials.

In other applications, glass fibre reinforced plastics are used exclusively as continuous fibres in woven fabrics or in UD (unidirectional) tapes.

- GRP made from woven or stitched fabric
- GRP made from rovings or unidirectional woven/stitched fabric (produced using the filament drawing method)
- Mixed forms of the above types

Laser technology has unrivalled advantages compared with conventional methods for the required glass fibre fabric separating process and for contouring:

- No tool wear
- Non-contact and therefore no introduction of force
- Only minor fraying
- Can also be processed in combination with aluminium foils or plastics



write your comments about the article :: © 2010 Construction News :: home page