Continuous Monitoring of Resin Content in Prepreg Unidirectional Tapes by Beta-Ray Method

[摘要] A beta-ray monitoring technique has been developed to measure the resin content during the manufacture of prepreg unidirectional tapes by solution impregnation process. A series of calibration relations have been obtained for aramid, carbon and glass fibres reinforced epoxy prepreg tapes, and good agreements with resin content have been shown by the beta-ray system and conventional solvent extraction method. Moreover, the effect of the variation of the fibre areal weight on measuring accuracy has been analysed.

[发布日期] 2002-01-01

[关键词] prepreg tape;resin content;beta-ray;on-line monitoring