纳米铁/P(MMA-St)复合材料的合成和热稳定性研究  

Synthesis of nano-iron/P(MMA-St)composites and study on its thermal stability

作　　者：甘颖[1] 叶翠情[1] 邢宏龙[1] 高圣涛[1] 徐国财[1] 

机构地区：[1]安徽理工大学化学工程学院,安徽淮南232001

出　　处：《功能材料》2016年第7期7051-7055,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51173002,51477002)

摘　　要：在不加任何还原剂的条件下,采用超声辐射引发溶液聚合制备纳米铁/聚（甲基丙烯酸甲酯-苯乙烯）[P（MMA-St）]复合材料。用XRD、TEM、XPS、FT-IR和TG等分析方法表征结构、热稳定性以及纳米铁与基体P（MMA-St）之间的相互作用。结果表明,纳米铁粒子具有体心立方晶系结构,粒径在20～40nm,且与基体中羰基碳原子和氧原子存在相互作用;纳米铁/P（MMA-St）复合材料热稳定性好,氮气气氛下在660℃开始分解,在850℃的高温下仅损失32%。Nano-iron/poly（methyl methacrylate-styrene）[P（MMA-St）]composites were synthesized by solution polymerization ultrasonically without addition of reducer.The morphology,microstructure,thermal stability and the interaction between nano-iron and P（MMA-St）matrix of the composites were characterized by means of techniques including X-ray diffractometer（XRD）,transmission electron microscopy（TEM）,X-ray photoelectron spectroscopy（XPS）,Fourier transform infrared spectroscopy（FTIR）and thermal-gravimetry analyzer（TGA）et al.The results showed that the size of nano-iron particles was about 20-40 nm with possessed cubic face-centered structure,and there existed an interaction between nanoiron particlesandCOfromP（MMA-St）matrix;the nano-iron/P（MMA-St）composites was highly thermally stable;the decomposition of it was660 ℃,and about 32%loss weight was measured at 850 ℃ under nitrogen atomosphere.

关 键 词：纳米铁 P(MMA-St) 超声辐射 热稳定性 

分 类 号：TQ325.7[化学工程—合成树脂塑料工业]