scholarly journals Hierarchical radial structure of polyacrylonitrile precursor formed during the wet-spinning process

RSC Advances ◽  
2019 ◽  
Vol 9 (30) ◽  
pp. 17051-17056 ◽  
Author(s):  
Yiran Zhou ◽  
Yang Sha ◽  
Wei Liu ◽  
Teng Gao ◽  
Zhuwei Yao ◽  
...  
Keyword(s):  
Wet Spinning ◽  
Radial Structure ◽  
Spinning Process ◽  
Polyacrylonitrile Precursor

The study focused on the multiscale to clarify the radial structure in PAN precursors.

Theoretical and experimental investigation of the wet-spinning process for mechanically strong carbon nanotube fibers

2021 ◽  
Vol 412 ◽  
pp. 128650
Author(s):  
Hyeon Dam Jeong ◽  
Seo Gyun Kim ◽  
Gyeong Min Choi ◽  
Minji Park ◽  
Bon-Cheol Ku ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Carbon Nanotube ◽  
Wet Spinning ◽  
Spinning Process ◽  
Carbon Nanotube Fibers

Tough synthetic spider-silk fibers obtained by titanium dioxide incorporation and formaldehyde cross-linking in a simple wet-spinning process

Biochimie ◽  
2020 ◽  
Vol 175 ◽  
pp. 77-84
Author(s):  
Hongnian Zhu ◽  
Yuan Sun ◽  
Tuo Yi ◽  
Suyang Wang ◽  
Junpeng Mi ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Spider Silk ◽  
Wet Spinning ◽  
Cross Linking ◽  
Silk Fibers ◽  
Spinning Process

Effect of coagulation bath parameters on the morphology and absorption behavior of a skin–core filament based on biomedical polyurethane and native silk fibroin microparticles

2019 ◽  
Vol 90 (3-4) ◽  
pp. 460-468 ◽  
Author(s):  
Yan Zhuang ◽  
Han Wang ◽  
Linfeng Wang ◽  
Changjun Liu ◽  
Yuan Xu ◽  
...  
Keyword(s):  
Drug Release ◽  
Water Absorption ◽  
Silk Fibroin ◽  
Controlled Drug Release ◽  
Coagulation Bath ◽  
Wet Spinning ◽  
Electron Microscopy Analysis ◽  
Potential Applications ◽  
Spinning Process ◽  
Biomedical Polyurethane

This study investigates the effect of the constituents and temperature of a coagulation bath on the morphology and water absorption behavior of a skin–core filament, which has potential application in the field of controlled drug release, based on biomedical polyurethane (BPU) and native silk fibroin microparticles (NSFPs). BPU solution and BPU/NSFP blend solution were extruded from the cortex and core channel of a coaxial double injector into a coagulation bath with different constituents and at different temperatures to form filaments. Scanning electron microscopy analysis of the skin–core filament prepared by wet-spinning revealed that the addition of ethanol decreased the exchange speed between the solvent and non-solvent and led to the formation of micropores on the surface. Meanwhile, the interface between the cortex and core became pronounced and the water absorption capability of the filament decreased with increasing ethanol concentration in the coagulation bath. The high temperature of the coagulation bath also improved the exchange speed between the solvent and non-solvent; however, its effect on the morphology of the filament was weak. Thus, a skin–core filament with different morphologies and water absorption behaviors was fabricated by controlling the constituents and temperature of the coagulation bath during the wet-spinning process. This skin–core filament has potential applications in controlled drug release.

Solid solid phase change (SSPC) chitosan-g-mPEG fiber with improved mechanical performance via in-situ wet spinning process

2020 ◽  
Vol 240 ◽  
pp. 116313 ◽  
Author(s):  
Da Bao ◽  
Lisha Liu ◽  
Ting Sun ◽  
Ying Han ◽  
Fanliang Meng ◽  
...  
Keyword(s):  
Phase Change ◽  
Mechanical Performance ◽  
Solid Phase ◽  
Wet Spinning ◽  
Spinning Process

Preparation of carrageenan fibers with extraction of Chondrus via wet spinning process

2018 ◽  
Vol 194 ◽  
pp. 217-224 ◽  
Author(s):  
Min Dong ◽  
Zhixin Xue ◽  
Jingjing Liu ◽  
Miao Yan ◽  
Yanzhi Xia ◽  
...  
Keyword(s):  
Wet Spinning ◽  
Spinning Process

On the wet spinning process of viscose fibres

1988 ◽  
pp. 388-391 ◽  
Author(s):  
K. Fischer ◽  
H. Sendner ◽  
R. Büchner ◽  
A. Schlesinger
Keyword(s):  
Wet Spinning ◽  
Spinning Process

Preparation and Characterization of High Latent Heat Thermal Regulating Fiber Made of PVA and Paraffin

2013 ◽  
Vol 8 (2) ◽  
pp. 155892501300800 ◽  
Author(s):  
Weixing Xu ◽  
Yichao Lu ◽  
Bin Wang ◽  
Jianjun Xu ◽  
Guangdou Ye ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Latent Heat ◽  
Wet Spinning ◽  
Structures And Properties ◽  
Spinning Process ◽  
Change Material ◽  
Thermal Stability Of ◽  
Better Than ◽  
High Latent Heat

A convenient method for preparing the thermal regulating fibers with high latent heat has been developed. PVA thermal regulating fibers were prepared via a wet spinning process, with paraffin being the phase change material. The structures and properties of these fibers were investigated by SEM, TGA, DSC and tensile strength tester. With the paraffin content in the fibers increasing from 30wt% to 70wt%, the latent heat of the fibers increases from 42.8J/g to 87.8J/g and the paraffin phase structures change from separation into partial interconnection. PVA matrix can not wrap paraffin effectively when the paraffin content increases up to 50wt%, so the paraffin loss in the spinning process increases. The thermal stability of fibers with low paraffin content is better than that of fibers with high paraffin content. After 100 heat-and-cool cycles, the latent heat of fibers lose a little. The tensile strength of these thermal regulating fibers is good enough for application in wrapping, filling, and nonwovens.

Highly stretchable multi-walled carbon nanotube/thermoplastic polyurethane composite fibers for ultrasensitive, wearable strain sensors

Nanoscale ◽  
2019 ◽  
Vol 11 (13) ◽  
pp. 5884-5890 ◽  
Author(s):  
Zuoli He ◽  
Gengheng Zhou ◽  
Joon-Hyung Byun ◽  
Sang-Kwan Lee ◽  
Moon-Kwang Um ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Thermoplastic Polyurethane ◽  
Strain Sensor ◽  
Strain Sensors ◽  
Wet Spinning ◽  
Polyurethane Composite ◽  
Multi Walled Carbon Nanotube ◽  
Highly Sensitive ◽  
Spinning Process ◽  
Highly Stretchable

In this manuscript, we report a novel highly sensitive wearable strain sensor based on a highly stretchable multi-walled carbon nanotube (MWCNT)/Thermoplastic Polyurethane (TPU) fiber obtained via a wet spinning process.

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