turkey Catalog

PREPREG

Prepreg is the abbreviation for "pre-impregnated", which is a term used for resin impregnated fabrics. It involves impregnating and semi-curing the resin system onto woven, uni-directional, or multi-directional glass, carbon, and aramid fabrics.

Prepregs are ready for lay-up without the need for additional resin processing as they contain the required resin and hardener mixture for curing. They cure under specific pressure and temperature conditions. Prepregs can be produced using autoclave, oven curing, vacuum bagging, or hot press methods. Upon curing, the impregnated resin hardens, forming a composite structure with high thermal and chemical resistance, lightweight, and high durability.

Prepreg Features and Benefits

  • Curing Condition: As the resin system is pre-applied to the fibers, it is ready for curing in industrial processes without the need for additional chemical addition. This simplifies and accelerates the production process.
  • Mechanical Performance: Prepreg provides excellent mechanical properties and fatigue resistance due to high fiber orientation and reinforcement-matrix bonding. This makes prepreg ideal for high-performance applications.
  • Ease of Processing: Prepreg ensures homogeneous reactions and quality control in pre-filled form, molding, or autoclave processes. This increases production efficiency and reduces the risk of errors.
  • Resin-Fiber Ratio Control: During fabric impregnation, the resin-fiber ratio can be adjusted, ensuring homogeneous control of the part's properties as desired.
  • Production Standardization: Product properties such as thickness, weight, and surface quality in composite part production with prepregs can be standardized and repeatable compared to other methods. This facilitates quality control and reduces production costs.
  • Ease of Application: Prepreg lay-up is much simpler compared to laying dry fabrics in a mold. This increases production efficiency and reduces the risk of errors.
  • Production Efficiency: Prepregs enhance efficiency in composite production. Curing times can be reduced to as little as 10 minutes with autoclave-free production methods. This lowers production costs and enables the production of complex-shaped parts.