工艺与制造英文2020被引 24
温度对聚酰胺-6复合材料力学性能和聚合动力学的影响
Effect of Temperature on the Mechanical Properties and Polymerization Kinetics of Polyamide-6 Composites
Mei-Xian Li, Dasom Lee, Gyu Hee Lee, Seung Mo Kim, Goichi Ben, Woo Il Lee, Sung Woong Choi · Korea Institute of Science and Technology
摘要整理
本研究通过ε-己内酰胺原位阴离子开环聚合制备碳纤维增强热塑性复合材料。采用真空辅助树脂传递模塑（VARTM）工艺在不同成型温度下制备聚酰胺-6/碳纤维复合材料。研究结果表明，在140 °C条件下ε-己内酰胺聚合度最高，具有良好的纤维浸润效果。关于成型温度的影响，聚酰胺-6/碳纤维复合材料的物理性能表明，在140 °C时的弯曲强度和冲击强度均高于其他成型温度条件。采用差示扫描量热法（DSC）分析聚酰胺-6的聚合动力学，通过模型拟合方法获取动力学参数。利用高斯分布和Maxwell-Boltzmann分布将聚合与结晶过程分离，以研究聚合动力学。建立的一阶自催化反应模型与实验数据吻合良好，为聚酰胺-6/碳纤维复合材料的制备工艺优化提供了理论依据。
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