PREPREG IMPREGNATION: CHARCTERISATION OF PROCESSING VARIABLES

摘要

The application of low fibre aerial weight (FAW) and low resin content (RC) on continuous solution processed prepreg has become necessary in the composites industry to fit the requirement of making lighter, stiffer and stronger products. The variables involved in the manufacture of low-RC prepreg in the continuous solution process are identified and discussed respectively. Useful calculations based on a fundamental fluid dynamics equation show good agreement with the set values in the current manufacturing process. The limitation of fibre spread and resin impregnation is dependent on; fibre elongation, the radius of the nip rollers, the resin's viscosity and the pressure applied from the nip rollers.