摘要
以水性聚氨酯(PU2540)为基体,碳纤维粉为功能填料,十二烷基硫酸钠为发泡剂,通过发泡和涂膜工艺制备碳纤维粉/PU膜,并进一步以PU2540为黏合剂,采用黏合法制备碳纤维粉/预氧丝/芳纶毡复合材料。重点研究了硅烷偶联剂(KH550)对材料红外隐身性能、紫外线防护性能、耐磨性能、耐化学腐蚀性能以及耐老化性能的影响机制。结果表明,KH550显著提升了复合材料的多功能性:界面结合强度的增强使耐磨性能提升15.7%;优化红外反射路径可使2.5~40.0μm波段的红外发射率降低至0.782,同时保持273的紫外线防护系数(UPF);交联网络的形成提高了耐化学腐蚀性能,并赋予材料优异的耐老化性能(经8 h紫外老化后性能保持率大于90%),成功实现了耐磨、红外隐身、紫外线防护、耐化学腐蚀和耐老化性能的协同优化。
Carbon fiber powder/PU film was prepared by foaming and coating process using waterborne polyure⁃thane(PU2540)as the matrix,carbon fiber powder as the functional filler,and sodium dodecyl sulfate as the blowing agent,and further carbon fiber powder/pre-oxygenated silk/aramid felt composites were prepared by using PU2540 as the binder using the adhesive method.Focusing on the mechanism of silane coupling agent(KH550)on the infrared stealth per⁃formance,ultraviolet protection performance,abrasion resistance,chemical corrosion resistance and aging resistance of the materials.The results show that KH550 significantly improves the multifunctionality of the composites:the enhancement of interfacial bonding strength increases the abrasion resistance by 15.7%.The optimization of infrared reflection paths reduc⁃es the infrared emissivity in the band of 2.5-40.0μm to 0.782,while maintaining the ultraviolet protection factor(UPF)of 273.The formation of crosslinked networks improves the chemical corrosion resistance,and gives the material excellent ag⁃ing resistance(the performance retention rate after 8 h of UV aging is above 90%),which successfully realizes the synergis⁃tic optimization of wear resistance,infrared stealth,UV protection,chemical corrosion resistance and aging resistance.
作者
叶航
毛雨桐
刘元军
YE Hang;MAO Yutong;LIU Yuanjun(School of Textile Science and Engineering,Tiangong University,Tianjin 300387,China;Binzhou Huafang Engineering Technology Research Institute Co.Ltd.,Binzhou 256600,China;Huafang Engineering Technology Research Institute Limited of Binzhou,Binzhou 256600,China;Shandong Province Short Process Printing and Dyeing New Technology Key Laboratory,Binzhou 256600,China;Shaoxing Keqiao Institute of Tiangong University,Shaoxing 312030,China;Tianjin Key Laboratory of Advanced Textile Composites,Tiangong University,Tianjin 300387,China)
出处
《染整技术》
2025年第8期12-17,共6页
Textile Dyeing and Finishing Journal
基金
山东省博士后创新项目(SDCX-ZG-202400284)
高性能纤维及制品教育部重点实验室(2232024G-02)
2023年国家级大学生创新创业计划项目(202310058033)。
关键词
红外隐身性能
紫外线防护性能
耐化学腐蚀性能
耐老化性能
耐磨性能
infrared stealth performance
ultraviolet protection
chemical resistance
aging resistance
abrasion re⁃sistance
