Thermoplastic resin transfer molding (T-RTM) of polyamide 6-based composite is one of the promising process to mass-produce an environmentally friendly textile composite with recyclable thermoplastic resin, in which ε-caprolactam monomer with low viscosity is injected and in situ polymerized into the fabric. The side reactions caused by water in the anionic polymerization process of the monomer is a crucial problem for fabricating the composite with a high quality. In this study, we introduced zeolite, a porous ceramic water-absorbing particle, into the ε-caprolactam to improve the moisture sensitivity during the anionic polymerization. The selective water-absorbing effect of zeolite particle was verified by measuring the monomer conversion, viscosity-average molecular weight, and viscosity change during polymerization, and mechanical properties of the resultant carbon fiber reinforced polyamide composite were investigated. It is expected that processability of the T-RTM is remarkably improved by reducing both the drying time during process and quality deviation of the composite by variation of humidity, which can make T-RTM process a viable technology for mass-production of thermoplastic composites.

聚酰胺 6 基复合材料的热塑性树脂传递模塑成型 (T-RTM) 是利用可回收热塑性树脂大规模生产环保纺织复合材料的一种很有前途的工艺，其中注入低粘度的ε-己内酰胺单体并原位聚合进入织物。单体阴离子聚合过程中水引起的副反应是制备高质量复合材料的关键问题。在这项研究中，我们将沸石（一种多孔陶瓷吸水颗粒）引入到ε-己内酰胺中，以提高阴离子聚合过程中的水分敏感性。通过测量聚合过程中的单体转化率、粘均分子量和粘度变化来验证沸石颗粒的选择性吸水效果，研究了所得碳纤维增强聚酰胺复合材料的力学性能。预计通过减少加工过程中的干燥时间和因湿度变化引起的复合材料质量偏差，T-RTM 的加工性能将得到显着改善，这可以使 T-RTM 工艺成为大规模生产热塑性复合材料的可行技术。