仿生自清洁金属纤维过滤材料

吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (增刊1): 168-172.

仿生自清洁金属纤维过滤材料

尚涛^1,2, 李涛¹, 刘先黎², 任露泉²

1. 吉林大学机械科学与工程学院, 长春 130022;
2. 吉林大学仿生工程教育部重点实验室, 长春 130022

收稿日期:2010-07-12 出版日期:2011-09-01 发布日期:2011-09-01
通讯作者: 任露泉(1944 ),男,教授.中国科学院院士.研究方向:仿生稠合机理与应用技术.E-mail:lqren@jlu.edu.cn. E-mail:lqren@jlu.edu.cn
作者简介:尚涛(1968 ),男,副教授.博士.研究方向:仿生稠合机理与应用技术研究.E-mail:shangtao@jlu.edu.cn.
基金资助:
国家自然科学基金重点项目(50635030)

Bionic self-cleaning metallic fibrous filter

SHANG Tao^1,2, LI Tao¹, LIU Xian-li², REN Lu-quan²

1. College of Mechanical Science and Engineering Jilin University, Changchun 130022, China;
2. Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China

Received:2010-07-12 Online:2011-09-01 Published:2011-09-01

摘要/Abstract

摘要：

基于土壤生物体表的脱附特性和以荷叶为代表的生物体表的自清洁特性,通过化学涂镀的方法在金属纤维表面制备Ni-P合金镀层,对仿生金属纤维自清洁过滤材料进行了研究。应用X射线衍射仪(XRD)研究了镀层的晶体结构和晶粒尺寸,应用扫描电子显微镜(SEM)和透射电子显微镜(TEM)观察了镀层的表面结构和表面形貌特征,应用光学接触角测量仪(OCAM)测量了金属丝网表面的水接触角(WCA),并对纤维材料过滤效率和压降进行了讨论。实验结果表明,经过表面处理后的仿生金属丝网过滤材料表面润湿特性得到了明显的改善,压降没有大幅度的增加,过滤效率得到了一定程度的提高。

关键词: 工程仿生学, 仿生自清洁, 金属纤维过滤材料, 润湿角, 过滤效率, 过滤压降

Abstract:

Based on anti-adhesion characteristic of soil animal body surfaces and self-cleaning function of plant surfaces,the bionic metallic fibrous filters were designed with electroless plating nickel-phosphorus in this paper.The crystalline structure and grain size of the as-deposited metal coatings were characterized by the X-ray diffraction(XRD).The surface morphologies and microstructure were observed by scanning electron microscope(SEM) and transmission electroless microscopy(TEM).The water contact angles(WCA) were measured by optical contact angle meter(OCAM).The mechanisms of particulates collected and filter cake formed were discussed.The test results show that surface treatment can effectively increase the wettability of bionic wire mesh filter,the filter back pressure was not obviously increased and filtration efficiency get some improving.

Key words: engineering bionics, bionic self-cleaning, metallic fibrous filter, water contact angles, filtration efficiency, filtering pressure drop

中图分类号:

TB17

尚涛, 李涛, 刘先黎, 任露泉. 仿生自清洁金属纤维过滤材料[J]. 吉林大学学报(工学版), 2011, 41(增刊1): 168-172.

SHANG Tao, LI Tao, LIU Xian-li, REN Lu-quan. Bionic self-cleaning metallic fibrous filter[J]. 吉林大学学报(工学版), 2011, 41(增刊1): 168-172.

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