西北师范大学学报(自然科学版)
西北師範大學學報(自然科學版)
서북사범대학학보(자연과학판)
JOURNAL OF NORTHWEST NORMAL UNIVERSITY(NATURAL SCIENCE)
2014年
5期
60-65
,共6页
李健%凌菁%徐明%严军%景治娇
李健%凌菁%徐明%嚴軍%景治嬌
리건%릉정%서명%엄군%경치교
超疏水%接触角%自清洁性能%低黏附
超疏水%接觸角%自清潔性能%低黏附
초소수%접촉각%자청길성능%저점부
superhydrophobic%contact angle%self-cleaning property%low adhesion
采用硬脂酸和十八烷基三氯硅烷分别对商业来源的ZnO、TiO2和SiO2颗粒进行修饰得到相应的疏水颗粒。然后利用简单的一步喷涂法通过喷涂所制备的疏水颗粒的无水乙醇悬浮液制备自清洁型的超疏水颗粒表面。通过红外光谱(FT-IR)、X-射线光电子能谱(XPS)、X-射线粉末衍射(XRD)证明低表面能物质成功地修饰在这些氧化物表面;用扫描电镜(SEM )观察超疏水表面形貌发现表面团聚现象比较严重;用DSA100型接触角测量仪测量所制备的超疏水颗粒表面对水滴的静态接触角高达160°,滚动角小于5°,说明该表面具有良好的超疏水性能。
採用硬脂痠和十八烷基三氯硅烷分彆對商業來源的ZnO、TiO2和SiO2顆粒進行脩飾得到相應的疏水顆粒。然後利用簡單的一步噴塗法通過噴塗所製備的疏水顆粒的無水乙醇懸浮液製備自清潔型的超疏水顆粒錶麵。通過紅外光譜(FT-IR)、X-射線光電子能譜(XPS)、X-射線粉末衍射(XRD)證明低錶麵能物質成功地脩飾在這些氧化物錶麵;用掃描電鏡(SEM )觀察超疏水錶麵形貌髮現錶麵糰聚現象比較嚴重;用DSA100型接觸角測量儀測量所製備的超疏水顆粒錶麵對水滴的靜態接觸角高達160°,滾動角小于5°,說明該錶麵具有良好的超疏水性能。
채용경지산화십팔완기삼록규완분별대상업래원적ZnO、TiO2화SiO2과립진행수식득도상응적소수과립。연후이용간단적일보분도법통과분도소제비적소수과립적무수을순현부액제비자청길형적초소수과립표면。통과홍외광보(FT-IR)、X-사선광전자능보(XPS)、X-사선분말연사(XRD)증명저표면능물질성공지수식재저사양화물표면;용소묘전경(SEM )관찰초소수표면형모발현표면단취현상비교엄중;용DSA100형접촉각측량의측량소제비적초소수과립표면대수적적정태접촉각고체160°,곤동각소우5°,설명해표면구유량호적초소수성능。
Hydrophobic particles are obtained by functionalizing the commercially available particles such as ZnO , TiO2 and SiO2 with low energy materials like stearic acid (SA ) and octadecyltrichlorosilane (OTCS ) . And then a facile one-step spray-coating process is developed for the fabrication of superhydrophobic particle surfaces by spraying hydrophobic particle suspensions onto desired substrate . The as-prepared superhydrophobic particle surfaces exhibit both superhydrophobicity and self-cleaning properties . The samples are characterized by Fourier transformation infrared spectra (FT-IR ) , X-ray photoelectron spectroscopy (XPS) and X-ray diffraction(XRD) ,indicating that ZnO ,TiO2 and SiO2 are successfully modifed with low energy materials . The as-prepared surfaces are charaterized by scanning electron microscopy (SEM ) , showing that the agglomeration of these surfaces is serious , which leads to superhydrophobicity . T he superhydrophobic surfaces show a contact angle larger than 160° and a sliding angle smaller than 5° , which is measured on a Kruss DSA 100 apparatus at ambient temperature . The results indicate that these surfaces have good superhydrophobicity .