γ-Fe2O3@C柔性复合纳米纤维的制备及结构性能

Preparation,Structural Properties of Flexible γ-Fe2O3@C Composite Nanofibers

磁赤铁矿（γ-Fe2O3@C）具有廉价的成本、独特的催化特性以及良好的磁学性能。由静电纺丝制备了新型柔性磁性纳米纤维，使用红外光谱、扫描电子显微镜、X射线光电子能谱、X射线衍射仪及超导量子干涉仪对产物进行了表征，结果显示：柔性磁性纳米纤维具有γ-Fe2O3@C磁性纳米粒子包覆在碳骨架上的复合结构。吸附试验结果显示γ-Fe2O3@C纳米纤维对甲基橙染料有快速吸附的性能。

A kind of polyether polyamide copolymer antistatic agent PED was synthesized by polycondensation through using hexamethylene diamine,adipic acid,polyether amine as raw materials and taking sodium hypophosphite as the catalyst.IR and 1 H-NMR were applied to characterize the molecular structure of PED,and it was applied for antistatic finishing of nylon fabric.The influences of PED dosage,curing temperature and curing time on the antistatic property of the treated fabrics were studied,and process conditions were optimized.Besides,the antistatic property of the finished fabrics was measured.The study results show that the optimal finishing process conditions of PED are as follows:PED dosage 20g/L,curing temperature170 ℃and curing time 50 s.The surface resistivity and induced voltage half-life of the finished fabric are 3.7×107Ωand 1.26 s,respectively.After washing 30 times,its surface resistivity and induced voltage half-life are 7.4×108Ωand 6.11 s.Compared with the finishing effect of common antistatic agent on the market,the finishing agent PED has good antistatic property and durability.