The infusion process in the composite industry
Vacuum infusion is a widely used process for manufacturing large composite parts. This process involves impregnating reinforcing fibers with a liquid resin drawn in under vacuum.
Infusion is notably used in the manufacture of:
- wind turbine blades
- boat hulls
- industrial composite structures
This technique allows for the production of composite parts with high structural quality.
Volatile organic compound emissions
During infusion, certain resins can release volatile organic compounds (VOCs). These emissions can occur during:
- fiber impregnation
- resin polymerization
- part demolding
Emissions can be more significant when composite parts are large. Air quality challenges in composite workshops VOC emissions can disperse throughout workshops and degrade air quality.
According to prevention organizations such as the INRS, exposure to VOCs can cause:
- respiratory irritation
- headaches
- fatigue
Managing emissions is therefore a major challenge for composite workshops.
Consult our complete guide on chemical risk and dust prevention.
Case study
- 4,000 m² x 6 m high treated with 8 ePUR140 units.
- Tenfold reduction in VOC concentrations.
- Reduction in the reintroduction of heated fresh air.
- Heating savings
