3. Parts manufacturing processes
Reinforcement and matrix are combined during the impregnation operation, which depends on the reinforcement used.
3.1 Short-fibre parts
Impregnation with a solution of phenolic resin diluted or undiluted in a solvent such as water, alcohol or ketone, and which may contain fillers, can be carried out :
or directly on fibers ranging in length from a few millimeters to a few centimeters; a mixing operation ensures homogeneous impregnation;
or on fibers several hundred meters long, which are then cut to the desired length.
The impregnated short fibers (25% to 55% resin content) are then placed in a press mold. The material is shaped and cured at...
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Parts manufacturing processes
Material characterization
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Standardization
French Standards Association (AFNOR)
- Reinforced plastics – Moulding composites and prepregs. Determination of apparent volatile matter content. - NF ISO 9782 - 06-1994
- Fiber-reinforced plastics – Prepregs – Determination of the conventional resin flow rate (float) parallel to the plane of the folds. - T 57-603 - 09-1988
- Fiber-reinforced plastics – Prepregs and molding compounds – Determination of resin,...
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