东华大学学报（英文版）2026，Vol.43Issue(2)：59-64,6.DOI:10.19884/j.1672-5220.202504014
封端异氰酸酯上浆剂改善碳纤维/聚酰胺6复合材料界面相互作用
Improved Interfacial Interaction of Carbon Fiber-Reinforced Polyamide 6 Composites by Sizing Agent of Blocked Isocyanate
董锋洋 1王金刀 1王彪1
作者信息
- 1. 东华大学 先进纤维材料全国重点实验室 材料科学与工程学院,上海 201620
- 折叠
摘要
Abstract
To enhance the interfacial properties of carbon fiber(CF)-reinforced polyamide 6(CF/PA6)composites,a novel blocked isocyanate(BI)/polyurethane(PU)sizing agent was prepared by dispersing BI in an aqueous PU emulsion.It was then applied to the CF surfaces for modification via a room-temperature sizing method.The results indicated that the BI/PU sizing layer significantly enhanced CF surface wettability,facilitating impregnation of PA6 resin onto fibers.With the increase in BI content,the interfacial shear strength(IFSS)of CF/PA6 composites was enhanced.The IFSS of the desized CF/PA6 composites was 46.8 MPa.When the sizing agent with a BI mass fraction of 3.0%was applied,the IFSS of the CF/PA6 composite reached 62.3 MPa,which represented an increase of 33.1%compared with that of the desized CF/PA6 composite.The proposed method offers an efficient and scalable surface modification strategy for high-performance thermoplastic composites.关键词
碳纤维/上浆剂/封端异氰酸酯/聚酰胺6/界面剪切强度Key words
carbon fiber/sizing agent/blocked isocyanate/polyamide 6/interfacial shear strength分类
通用工业技术引用本文复制引用
董锋洋,王金刀,王彪..封端异氰酸酯上浆剂改善碳纤维/聚酰胺6复合材料界面相互作用[J].东华大学学报（英文版）,2026,43(2):59-64,6.
