Lee, Jungwoo Lim, Jun Woo Kim, Minkook 2024-01-19T18:01:04Z 2024-01-19T18:01:04Z 2021-09-04 2020-04 0272-8397 https://pubs.kist.re.kr/handle/201004/118819 The thermoplastic resin transfer molding (T-RTM) process for carbon fiber reinforced thermoplastic polymer composites (CFRTP) were experimentally investigated and optimized using high-pressure resin transfer molding system for mass production. The CFRTP was manufactured by Anionic ring opening polymerization of the T-RTM process and the curing process was analyzed by in situ cure monitoring using dielectrometry. Mechanical properties, productivity, and crystal structures of the PA 6 matrix and CFRTP were evaluated by differential scanning calorimetry, X-ray diffraction analysis, tensile, and interlaminar shear strength tests. The crystallinity, impregnation quality and process speed were determined by the curing temperature. In addition, a time- and cost-effective flame surface treatment was developed to remove moisture from the carbon fiber and increase the interfacial bonding strength of the CFRTP. As a result, optimal T-RTM processing conditions were suggested for realizing maximum productivity and mechanical properties for the CFRTP. English WILEY ANIONIC POLYAMIDE-6 POLYMERIZATION CRYSTALLIZATION CRYSTALLINITY HUMIDITY LACTAMS TENSILE WATER Effect of thermoplastic resin transfer molding process and flame surface treatment on mechanical properties of carbon fiber reinforced polyamide 6 composite Article 10.1002/pc.25445 1 POLYMER COMPOSITES, v.41, no.4, pp.1190 - 1202 POLYMER COMPOSITES 41 4 1190 1202 scie scopus 000504599800001 2-s2.0-85078060801 Materials Science, Composites Polymer Science Materials Science Polymer Science Article ANIONIC POLYAMIDE-6 POLYMERIZATION CRYSTALLIZATION CRYSTALLINITY HUMIDITY LACTAMS TENSILE WATER composites curing of polymers mechanical properties ring-opening polymerization thermoplastic