scholarly journals Formation and characterization of polytetrafluoroethylene nanofiber membranes for high-efficiency fine particulate filtration

RSC Advances ◽  
2019 ◽  
Vol 9 (24) ◽  
pp. 13631-13645 ◽  
Author(s):  
Huan Xu ◽  
Wangyong Jin ◽  
Feng Wang ◽  
Guojin Liu ◽  
Chengcai Li ◽  
...  
Keyword(s):  
High Temperature ◽  
High Efficiency ◽  
Porous Membranes ◽  
Fine Particulate ◽  
Nanofiber Membranes ◽  
Particulate Filtration

Polytetrafluoroethylene (PTFE) porous membranes are widely used for high-temperature filtration.

Electrospun flexible self-standing γ-alumina fibrous membranes and their potential as high-efficiency fine particulate filtration media

2014 ◽  
Vol 2 (36) ◽  
pp. 15124-15131 ◽  
Author(s):  
Yan Wang ◽  
Wei Li ◽  
Yuguo Xia ◽  
Xiuling Jiao ◽  
Dairong Chen
Keyword(s):  
High Efficiency ◽  
Fine Particulate ◽  
Electrospinning Method ◽  
Fibrous Membranes ◽  
Particulate Filtration

Flexible self-standing γ-alumina fibrous membranes with high-efficiency filtration of sub-micron aerosols have been fabricated by the electrospinning method.

Silica nanofibrous membranes with robust flexibility and thermal stability for high-efficiency fine particulate filtration

RSC Advances ◽  
2012 ◽  
Vol 2 (32) ◽  
pp. 12216 ◽  
Author(s):  
Xue Mao ◽  
Yang Si ◽  
Yuecheng Chen ◽  
Liping Yang ◽  
Fan Zhao ◽  
...  
Keyword(s):  
Thermal Stability ◽  
High Efficiency ◽  
Fine Particulate ◽  
Nanofibrous Membranes ◽  
Particulate Filtration

High Efficiency Fine Particulate Filtration Using Carbon Nanotube Coatings

2004 ◽  
Vol 16 (22) ◽  
pp. 2045-2049 ◽  
Author(s):  
G. Viswanathan ◽  
D. B. Kane ◽  
P. J. Lipowicz
Keyword(s):  
Carbon Nanotube ◽  
High Efficiency ◽  
Fine Particulate ◽  
Particulate Filtration

FTIR Characterization of the Residues of High-Temperature Extraction and Subsequent Oxidization Depolymerization of Lignite

2011 ◽  
Vol 236-238 ◽  
pp. 645-648
Author(s):  
Zhi Cai Wang ◽  
Juan Gao ◽  
Heng Fu Shui ◽  
Chun Xiu Pan ◽  
Fa Guo Chong ◽  
...  
Keyword(s):  
High Temperature ◽  
Room Temperature ◽  
High Efficiency ◽  
Mixed Solvent ◽  
Covalent Bond ◽  
Methylene Bridge ◽  
Ftir Characterization ◽  
Thermal Extraction ◽  
Efficiency Conversion

In order to explore high-efficiency utilization approach of lignite, Xianfeng lignite was extracted by toluene/methanol (3:1) mixed solvent under 300°C in an autoclave combined with high-temperature separator. Subsequently, the thermal extraction residue was oxidized by 3% hydrogen peroxide aqueous solution at room temperature. The raw coal and its residues of thermal extraction and oxidization were further extracted respectively by THF and CS2/NMP mixed solvent, and the extracts and the extraction residues were characterized by FTIR. The results indicate that thermal extraction of lignite relaxes the network structure of coal matrix by disrupture the non-covalent bond interactions. The methylene bridge bond is easy to be oxidized into carboxyl and hydroxyl functional groups. Therefore, these results are very significant for the development of high-efficiency conversion technology.

The Development of Alumina Forming Austenitic Alloy for Core Application in Advanced Nuclear Reactors

2020 ◽  
Vol 999 ◽  
pp. 72-80
Author(s):  
Zhang Jian Zhou ◽  
Ling Zhi Chen ◽  
Yuan Gao ◽  
Qi Wang
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Room Temperature ◽  
High Efficiency ◽  
Nuclear Reactors ◽  
Potential Applications ◽  
Core Components ◽  
High Burnup ◽  
Corrosive Environments

The development of materials for core components which can serve in high temperature corrosive environments for a long service time is crucial to realize high efficiency and high-burnup operation of advanced nuclear reactors. Alumina forming austenitic (AFA) alloy is a kind of promising materials with improved corrosion resistance as well as strength at elevated temperature. The progress on the composition design and characterization of AFA alloys are reviewed in this work for evaluation their potential applications in advanced nuclear reactors. AFA alloys without the addition of carbon have been fabricated. Microstructures were observed by SEM and TEM. Mechanical properties were measured at room temperature and high temperature.

scholarly journals Preparation and Characterization of Electrospun PAN/PSA Carbonized Nanofibers: Experiment and Simulation Study

Nanomaterials ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 821 ◽  
Author(s):  
Shixin Jin ◽  
Jiali Yu ◽  
Yuansheng Zheng ◽  
Wen-Yi Wang ◽  
Binjie Xin ◽  
...  
Keyword(s):  
High Temperature ◽  
Electric Field Distribution ◽  
Fiber Diameter ◽  
Temperature Treatment ◽  
High Temperature Treatment ◽  
The Finite Element Method ◽  
Before And After ◽  
Nanofiber Membranes ◽  
Scanning Electron

In this study, we simulated the electric field distribution of side-by-side electrospinning by using the finite element method (FEM), and studied the effects of spinneret wall thickness, spinning voltage and receiving distance on the distribution of the electrostatic field. The receiving distance was selected as a variable in the experimental, a series of PAN/PSA composite nanofiber membranes were prepared by using a self-made side by side electrospinning device. The membranes were tested by Fourier-transform infrared (FTIR), thermogravimetric analysis (TG), and scanning electron microscope (SEM). The prepared membranes were also treated by high-temperature treatment, and the change of fiber diameter and conductivity of the membrane before and after high-temperature treatment were studied. It was found that the PAN/PSA carbonized nanofibers could achieve a better performance in heat resistance and conductivity at 200 mm receiving distance.

Sign in / Sign up

Export Citation Format

Share Document