PREPREG
Prepreg is the abbreviation of the term “pre-impregnated” and is the term used for resin-impregnated fabrics. The product is created by impregnating and semi-curing a resin system onto woven, single or multi-sided glass, carbon and aramid fabrics.
Prepregs; Since it contains the necessary resin and hardener mixture for curing, it is ready to be laid without requiring additional resin processing. Prepregs are cured under a certain pressure and temperature. Prepregs can be produced by autoclave, oven baking, vacuum bagging or hot press methods. As a result of curing, the impregnated resin hardens and forms a composite structure with high thermal and chemical resistance, light and very durable.
Prepreg Features and Advantages
- Curing Status
Since the resin system is pre-applied to the fibers, it is ready to cure without the need for additional chemicals in industrial processes. This simplifies and speeds up the production process.
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- Mechanical Performance
Prepreg provides a high degree of orientation and reinforcement-matrix bonding, which means excellent mechanical properties and fatigue resistance. This makes prepreg ideal for high-performance applications.
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- 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.
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- Resin to Fiber Ratio Control
During the impregnation of the fabric with resin, the resin to fiber ratio can be adjusted. This allows the properties of the part to be controlled homogeneously as desired.
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- Production Standardization
In composite part production with prepregs, final product properties such as thickness, weight and surface quality can be standardized and repeated compared to other methods. This improves quality control. and reduces production costs.
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- Ease of Application
Prepreg laying is much simpler compared to laying dry fabrics on the mold. This increases production efficiency and reduces the risk of errors.
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- Production Efficiency
Prepregs increase efficiency in composite production. With autoclave-free production methods, curing times can be reduced to as little as 10 minutes. This reduces production costs and enables the production of complex shaped parts.
