experimental investigations on electrospun mat production: for use in high-performance air filters
نویسندگان
چکیده
original article electrospun nanofibrous filter media have attracted considerable attention in the last decade. the present study aimed to develop the electrospun pan (polyacrylonitrile) filter media through experimental investigations for application in high-performance air filters. for this purpose, an experimental design was proposed to assess the effect of electrospinning process conditions including solution concentration, electric voltage and nozzle-collector distance on the structural properties of filter media including the fiber diameter, percent of porosity and bead number. optimization of electrospinning parameters was conducted through the response surface methodology to obtain the desired values for fibrous media variables. the morphology of the mats (including bead number and fiber diameter) were studied using sem images through, microstructure measurement image analyzer. the porosity was determined using image analysis algorithms by matlab. the findings indicated that the concentration is the most influencing factor on fiber diameter (r= 0.73, p<0.05) and bead number (r= -0.51, p>0.05), so that the lower concentrations led to lower fiber diameter and more bead number. among the electrospinning parameters, the highest correlation coefficient was achieved between porosity of pan media and applied voltage (r=0.39, p>0.05). there was a negative relationship between fiber diameter and both percent of porosity (r=-23; p>0.05) and bead number(r=-0.53; p<0.05). thus, media with the lower fiber diameter had the higher porosity and more bead number. since the fibers diameter, bead number and porosity can have different effects on the quality factor of filters, the well-considered selection of electrospinning conditions can be of great importance for obtaining the arbitrary values of filter characteristics.
منابع مشابه
Numerical and Experimental Investigations for Design of a High Performance Micro-hydro-kinetic Turbine
Design and manufacturing of a high performance micro-hydro-kinetic turbine is discussed in the present paper. The main goal is manufacturing an equipped experimental model of hydro-kinetic turbine with highest energy absorption from water current. A multi-shape ducted turbine comprised of a multi-part diffuser was manufactured that can be converted to many experimental models for studying vario...
متن کاملCo3O4 nanoparticles decorated carbon nanofiber mat as binder-free air-cathode for high performance rechargeable zinc-air batteries.
An efficient, durable and low cost air-cathode is essential for a high performance metal-air battery for practical applications. Herein, we report a composite bifunctional catalyst, Co3O4 nanoparticles-decorated carbon nanofibers (CNFs), working as an efficient air-cathode in high performance rechargeable Zn-air batteries (ZnABs). The particles-on-fibers nanohybrid materials were derived from e...
متن کاملHydrogel–Electrospun Fiber Mat Composite Coatings for Neural Prostheses
Achieving stable, long-term performance of implanted neural prosthetic devices has been challenging because of implantation related neuron loss and a foreign body response that results in encapsulating glial scar formation. To improve neuron-prosthesis integration and form chronic, stable interfaces, we investigated the potential of neurotrophin-eluting hydrogel-electrospun fiber mat (EFM) comp...
متن کاملFunctionalized and Electrospun Polymeric Materials as High-Performance Membranes for Direct Methanol Fuel Cell: A Review
Proton exchange membranes (PEM) for a direct methanol fuel cell (DMFC) have main drawbacks which are methanol permeability, reduced proton conductivity and the cost of the membrane. This paper reviews different polymeric materials such as fluorinated, non-fluorinated, acid-base complex, and composite membranes for DMFC. Currently, nonfluorinated membranes gain a lot of atte...
متن کاملHigh-performance electrospun co-polyimide nanofibers
Co-polyimide nanofiber based on BPDA (3, 30 , 4, 40-Biphenyltetracarboxylic dianhydride)/PDA (p-Phenylene-diamine)/ODA (4, 40-Oxydianiline) (BPO) were produced by electrospinning followed by imidization from precursor polyamic acid (PAA) nanofiber. The aligned co-polyimide nanofiber mats possessed a modulus, strength and strain-at-break of respective 10 GPa, 1.04 GPa, and 13.5%. In comparison w...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
international journal of occupational hygieneجلد ۷، شماره ۳، صفحات ۱۱۰-۱۱۸
کلمات کلیدی
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023