Preparation and properties of an aromatic polyamide fibre derived from a bio-based furan acid chloride

2021 ◽  
pp. 095400832110208
Author(s):  
Kaikai Cao ◽  
Yufeng Liu ◽  
Feng Yuan ◽  
You Yang ◽  
Jin Wang ◽  
...  
Keyword(s):  
Acid Chloride ◽  
High Performance ◽  
Aromatic Polyamide ◽  
Polyamide Fibre ◽  
Environment Friendly ◽  
Good Solubility ◽  
Temperature Solution ◽  
Good Potential ◽  
Flame Retardant Properties ◽  
Aromatic Polyamide Fibre

A high-molecular-weight aromatic polyamide resin incorporating furan-rings (f-resin) was prepared by low-temperature solution polycondensation of bio-based 2,5-furandiformyl chloride and 3,4′-diaminodiphenyl ether, in N,N-dimethylacetamide. Further, an aromatic polyamide fibre containing furan-rings (f-fibre) was obtained from the fresin by dry-jet wet spinning, and its structure and properties were investigated. The prepared f-resin showed good solubility and possessed good spinnability in solution. The mechanical, heat-resistance, and flame-retardant properties of the f-fibre were found to be excellent – comparable to or exceeding those of meta-aramid fibre (m-fibre). In addition, the furan acid chloride monomer is bio-based and is derived from abundant resources, unlike petroleum-based monomers. Therefore, f-fibre has good potential and broad application prospects as an environment-friendly and sustainable high-performance material.

Stress relaxation of aromatic polyamide fibre

1980 ◽  
Vol 11 (3) ◽  
pp. 225-227
Author(s):  
V. G. Tiranov ◽  
M. A. Stepanova ◽  
G. I. Kudryavtsev ◽  
A. V. Tokarev ◽  
I. F. Khudoshev
Keyword(s):  
Stress Relaxation ◽  
Aromatic Polyamide ◽  
Polyamide Fibre ◽  
Aromatic Polyamide Fibre

Determination of chloride ion content in aromatic polyamide fibre manufacturing solutions

1984 ◽  
Vol 15 (6) ◽  
pp. 466-468
Author(s):  
L. N. Bykova ◽  
N. N. Gridina ◽  
A. V. Novikov ◽  
L. G. Shirokova
Keyword(s):  
Chloride Ion ◽  
Aromatic Polyamide ◽  
Polyamide Fibre ◽  
Ion Content ◽  
Aromatic Polyamide Fibre

Structural aspects of high modulus aromatic polyamide fibres

1980 ◽  
Vol 294 (1411) ◽  
pp. 483-485 ◽  
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Aromatic Polyamide ◽  
Polyamide Fibre ◽  
Supramolecular Structures ◽  
High Modulus ◽  
X Ray Diffraction ◽  
X Ray ◽  
Aromatic Polyamide Fibre ◽  
Structural Aspects

The molecular and supramolecular structures of an aromatic polyamide fibre (Kevlar 49) have been investigated by X-ray diffraction and electron microscopy. As a result, the main features of the fibre have now been defined. An attempt has been made to relate these findings to the exceptional mechanical properties.

Coulometric determination of the water in the technological liquors in the production of aromatic polyamide fibre

1980 ◽  
Vol 12 (3) ◽  
pp. 201-203
Author(s):  
L. N. Bykova ◽  
A. D. Galitsyn ◽  
V. V. Bogoslovskii ◽  
A. V. Novikov
Keyword(s):  
Aromatic Polyamide ◽  
Polyamide Fibre ◽  
Coulometric Determination ◽  
Aromatic Polyamide Fibre

scholarly journals Room-Temperature Solution-Processed 0D/1D Bilayer Electrodes for Translucent CsPbBr3 Perovskite Photovoltaics

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1489
Author(s):  
Bhaskar Parida ◽  
Saemon Yoon ◽  
Dong-Won Kang
Keyword(s):  
Solar Cells ◽  
Indium Tin Oxide ◽  
High Performance ◽  
Room Temperature ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Plasma Damage ◽  
Temperature Solution ◽  
Ito Nanoparticles

Materials and processing of transparent electrodes (TEs) are key factors to creating high-performance translucent perovskite solar cells. To date, sputtered indium tin oxide (ITO) has been a general option for a rear TE of translucent solar cells. However, it requires a rather high cost due to vacuum process and also typically causes plasma damage to the underlying layer. Therefore, we introduced TE based on ITO nanoparticles (ITO-NPs) by solution processing in ambient air without any heat treatment. As it reveals insufficient conductivity, Ag nanowires (Ag-NWs) are additionally coated. The ITO-NPs/Ag-NW (0D/1D) bilayer TE exhibits a better figure of merit than sputtered ITO. After constructing CsPbBr3 perovskite solar cells, the device with 0D/1D TE offers similar average visible transmission with the cells with sputtered ITO. More interestingly, the power conversion efficiency of 0D/1D TE device was 5.64%, which outperforms the cell (4.14%) made with sputtered-ITO. These impressive findings could open up a new pathway for the development of low-cost, translucent solar cells with quick processing under ambient air at room temperature.

Ultraviolet light-emitting diode-assisted highly sensitive room temperature NO2 gas sensor for low-temperature solution-processed ZnO/TiO2 nanorods decorated with plasmonic Au nanoparticles

Nanoscale ◽  
2021 ◽  
Author(s):  
Soon-Hwan Kwon ◽  
Tae-Hyeon Kim ◽  
Sang-Min Kim ◽  
Semi Oh ◽  
Kyoung-Kook Kim
Keyword(s):  
Gas Sensors ◽  
High Performance ◽  
Room Temperature ◽  
Au Nanoparticles ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
No2 Gas Sensor ◽  
Highly Sensitive ◽  
Temperature Solution ◽  
Semiconducting Metal Oxides

Nanostructured semiconducting metal oxides such as SnO2, ZnO, TiO2, and CuO have been widely used to fabricate high performance gas sensors. To improve the sensitivity and stability of gas sensors,...

Flexible silicon nanowires sensor for acetone detection on plastic substrates

2021 ◽  
Author(s):  
Kuibo Lan ◽  
Zhi Wang ◽  
Xiaodong Yang ◽  
Junqing Wei ◽  
Yuxiang Qin ◽  
...  
Keyword(s):  
Silicon Nanowires ◽  
High Performance ◽  
Underlying Mechanism ◽  
Environmental Safety ◽  
Cmos Process ◽  
Plastic Substrates ◽  
Irregular Shapes ◽  
Good Potential ◽  
Mechanical Bending ◽  
Acetone Detection

Abstract Acetone commonly exists in daily life and is harmful to human health, therefore the convenient and sensitive monitoring of acetone is highly desired. In addition, flexible sensors have the advantages of light-weight, conformal attachable to irregular shapes, etc. In this study, we fabricated high performance flexible silicon nanowires (SiNWs) sensor for acetone detection by transferring the monocrystalline Si film and metal-assisted chemical etching method on polyethylene terephthalate (PET). The SiNWs sensor enabled detection of gaseous acetone with a concentration as low as 0.1 parts per million (ppm) at flat and bending states. The flexible SiNWs sensor was compatible with the CMOS process and exhibited good sensitivity, selectivity and repeatability for acetone detection at room temperature. The flexible sensor showed performance improvement under mechanical bending condition and the underlying mechanism was discussed. The results demonstrated the good potential of the flexible SiNWs sensor for the applications of wearable devices in environmental safety, food quality, and healthcare.

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