Technical information on Composites

The principle of plastics composites is very simple. Fibers e.g. out of glass, carbon or aramid are embedded in resin, the so-called matrix. The resulting material compound is a composite. In different working processes small but also very large preforms and complicated geometric parts can be produced with relatively little effort. No matter if you only need one tailor-made part or want to go into series production, fiber compounds are unique in terms of static and dynamic properties, chemical resistance and surface quality.

The fibers give the preform the strength and stiffness. Depending on the use, material, diameter and orientation as well as the fiber content in the matrix determine the mechanical and dynamical capacity of the compound. To achieve this a nearly all-over and chemically strong adhesion between the fibers and the matrix must exist. That’s why the glass fibers are already coated with coupling agents like silane during production.

The matrix. The reaction resin coats and fixes the fibers so they are protected against external influences. Moreover influencing forces are distributed on the fibers to the desired degree. Modern resin systems can fulfill different requirements: Resistance against chemicals, high surface quality, electrical characteristics, and so on. Decisive for the quality of a preform is also the hardening process. Depending on the used resin and the working method different reaction types and reaction means are deployed.

Light and strong

  • weight reduction due to low specific density
  • high impact, tear and tensile strength
  • high durability
  • easy processing
  • electrical and thermal insulation
  • resistance against acids, bases and external influences
  • unique price-performance ratio