Title: New Interfacial and Wicking Evaluation of Carbon Fiber (CF)/Epoxy Composites by CF Tow Capillary Glass Tube Method (TCGTM) with Tripe-CF Fragmentation Test

Authors: Joung-Man Park, Jong-Hyun Kim, K, Lawrence DeVries

DOI: 10.33599/nasampe/s.22.0685

Abstract: Using the new CF tow capillary glass tube method (TCGTM), this study investigated the wetting, wicking and interfacial properties for three type CFs reinforced epoxy composites combined with a triple-fiber fragmentation test. The CFs TCGTM was performed to evaluate the wettability and wicking of CF tow with epoxy resin by measuring the height of impregnated epoxy front in capillary tube using three different type CFs and fiber volume fractions more practically. After curing the specimens, the visual contact angle between CF and epoxy was measured using FE-SEM photos directly. Wetting and wicking were also evaluated by measuring the impregnated length of epoxy droplets on the CF tow, and compared with the result by CF TCGTM. From all of the relating tests, the 50C type CF exhibited better wetting and wicking than the 60E type CF and the desized CF. Interfacial shear strength (IFSS) were evaluated using a triple fiber fragmentation test for three different type CFs. Better IFSS of the 50C type CF was consistent with wetting and wicking results by CFs TCGTM. A new innovative CF TCGTM can be applicable for conventional CF reinforced epoxy composites more practically by combining with micromechanical test for the IFSS between single CF and epoxy mainly.

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Conference: SAMPE 2022

Publication Date: 2022/05/23

SKU: TP22-0000000685

Pages: 10

Price: $20.00