The Universal Selection Source: Plastics & Elastomers

Thermoplastic Composites : Solutions to Optimize Matrix Fiber Interface

Thermoplastic composite materials often suffer from a lack of fiber­-matrix adhesion. A weak interface in these materials results in low stiffness and and strength but a high resistance to fracture. On the other hand, a strong interface produces high strength and stiffness but generally low fracture resistance. This lack of fiber-matrix adhesion can typically be remedied using fiber surface modification. However, usual surface treatments for epoxy-based thermoset composites do not necessarily work well for use in thermoplastic composites. Read on and explore the best solutions to optimize matrix / fiber interface in thermoplastic composites!

Why Optimizing the Interface between Matrix and Fibers


Polymer composites are playing an increasing role in a wide variety of applications. In particular, thermoplastic composites are under increased scrutiny. They are easier to recycle & reuse compared to thermosetting matrix composites.

Uses for thermoplastic composites are currently being envisioned for the automotive industry. In the automotive industry, for example, they have to offer a unique combination of::

  • high thermal and oxidative stability,
  • toughness
  • solvent resistance.

Yet thermoplastic composite materials often suffer from a lack of fiber­-matrix adhesion. This low stiffness and strength but a high resistance to fracture. Optimizing the matrix / fibers interface enables to achieve high strength and stiffness but generally low fracture resistance. Other properties of composites, affected by interface characteristics include resistance to:

  • creep,
  • fatigue
  • environmental degradation and
  • heat deflection temperature

This is remedied using fiber surface modification. Usual surface treatments for epoxy­-based thermoset composites do not work well for use in thermoplastic composites.

Thermoplastic composites solutions


Thermoplastics Composites

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