Title: DEVELOPING OF IN-SITU POLYMERIZATION THERMOPLASTIC PREPREG “NS-TEPREG®”
Abstract: Various carbon fiber reinforced thermoplastic (CFRTP) have been developed all over the world. However, the conventional CFRTP still have some weaknesses such as low mechanical properties stemming from low interfacial strength and low mold-ability coming from its solidstate stiffness. NS-TEPreg®, thereinafter referred to it as “TEPreg,” has unique characteristics of both thermoset prepreg and thermoplastic prepreg. Before curing, the resin of the prepreg remains semi-liquid state or B stage same as a general thermoset prepreg, so it has good tackiness and drapability. These characteristics overcome lower workability of conventional thermoplastic prepreg in laminating process. On the other hand, it will show the characteristics of thermoplastic resins after curing. Molded products of the in-situ polymerization thermoplastic prepreg have not only excellent static mechanical properties of thermoset CFRP but also have excellent impact resistance of ordinally CFRTP. Furthermore, secondary workability can be obtained by heating even after the product is fully cured.
Authors: Kazuya Eto, Makoto Saito, Tsutomu Sugiura, Masami Endo, Isao Kurata, and Akira Kobayashi
Conference: CAMX 2017 –Orlando