纳米Fe_3O_4/氟碳树脂磁场诱导自组装抗反射薄膜的制备及表征  

Fabrication and optical properties of nano-Fe_3O_4/fluorocarbon self-assembled antireflection films under magnetic field

作　　者：徐丹[1] 陆春华[1] 张敦谱[1] 宋剑斌[1] 倪亚茹[1] 许仲梓[1] 

机构地区：[1]南京工业大学,材料科学与工程学院,材料化学工程国家重点实验室,江苏南京210009

出　　处：《南京工业大学学报（自然科学版）》2012年第4期11-15,共5页Journal of Nanjing Tech University(Natural Science Edition)

基　　金：江苏省自然科学基金资助项目(BK2010553);江苏省创新学者攀登项目(SBK200910148)

摘　　要：为了获得高度取向的阵列材料,以水热合成的纳米Fe_3O_4磁性颗粒为功能物质,氟碳树脂为薄膜基体,在磁场作用下定向生长成具有磁性针状阵列结构的自组装抗反射薄膜,并考察不同Fe_3O_4含量对磁性阵列结构的影响;利用体视显微镜和扫描电镜(SEM)对薄膜表面结构进行了表征;采用紫外可见近红外分光光度计(UV/Vis/NIR)来表征自组装薄膜的反射率。结果表明:随着Fe_3O_4含量的增加,阵列高度逐渐增高;当粉体质量分数为10%时,阵列的间距为300～600μm,阵列中单个针状结构中间的直径约为100μm;To obtain the materials with highly ordered arrays, the self-assembled antireflection films with oriented needlelike arrays under magnetic field were obtained by taking Fe3 O4 nanoparticles prepared by the hydrothermal method as the functional material and fluorocarbon resin as film matrix. The influences of Fe3O4 content on the structures were discussed. The stereoscopic microscope and scanning electron mi- croscope （SEM） were used to characterize the structures of the film surface. The optical properties were tested by ultraviolet-visible-near infrared spectrophotometer （UV/Vis/NIR）. Results showed that the height of arrays became higher as the content of Fe3O4 increased. When the content was 10% , the dis- tance of arrays was 300-600 μm, and the diameter in the middle of single needle was about 100 μm. The reflectance of self-assembled films could be significantly reduced due to the structures of arrays.

关 键 词：纳米FE3O4 磁场诱导自组装 针状阵列 光学性能 

分 类 号：TB34[一般工业技术—材料科学与工程]