Electro-conductive composite fibers by melt spinning of polypropylene/polyamide/carbon nanotubes

2011 ◽  
Vol 161 (15-16) ◽  
pp. 1731-1737 ◽  
Author(s):  
Saleh Hooshmand ◽  
Azadeh Soroudi ◽  
Mikael Skrifvars
Keyword(s):  
Carbon Nanotubes ◽  
Melt Spinning ◽  
Composite Fibers ◽  
Conductive Composite

Study on the Properties of Melt Spinning PAN/MWNTs Composite Fibers

2012 ◽  
Vol 217-219 ◽  
pp. 567-570
Author(s):  
Dan Wang ◽  
Ke Qing Han ◽  
Wen Hui Zhang ◽  
Bin Yan ◽  
Yin Cai Tian ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Ionic Liquids ◽  
Melt Spinning ◽  
Composite Fibers ◽  
Multi Walled Carbon Nanotubes ◽  
Conductive Properties ◽  
Walled Carbon Nanotubes

Polyacrylonitrile（PAN）/multi-walled carbon nanotubes (MWNTs) composite fibers were prepared by melt spinning using ionic liquids (ILs) as a plasticizer. The effects of different MWNTs contents on the morphology, mechanical and conductive properties of the composite fibers were discussed. The results showed that property improvements have occurred with the adding of MWNTs. When the content of MWNTs reached 10%, the conductivity of PAN/MWNTs was 8.65×10-3 S/cm.

scholarly journals Starch-Based Fishing Composite Fiber and Its Degradation Behavior

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Wenwen Yu ◽  
Fei Yang ◽  
Lei Wang ◽  
Yongli Liu ◽  
Jiangao Shi
Keyword(s):  
Melt Spinning ◽  
Starch Content ◽  
Reactive Extrusion ◽  
Composite Fiber ◽  
Mechanical Analysis ◽  
Composite Fibers ◽  
Reactive Blending ◽  
Dynamic Mechanical ◽  
One Step ◽  
Β Relaxation

The starch-based fishing composite fibers were prepared by one-step reactive extrusion and melt spinning. The effects of starch contents on the microstructural, thermal, dynamic mechanical, and mechanical properties of starch-based composite fibers were studied. And the degradation behaviors in soil of the fibers were also investigated. The compatibility between starch and HDPE is improved significantly by grafting maleic anhydride (MA) using one-step reactive blending extrusion. As the starch content increased, the melting temperature and the crystallinity of the fibers gradually decreased due to fluffy internal structures. Dynamic mechanical analysis showed that the transition peak α in the high-temperature region was gradually weakened and narrowed with increasing starch content; moreover, a shoulder appeared on the low-temperature side of the α peak was assigned to the β-relaxation related to starch phase. In addition, the mechanical results showed the significant decrease in the breaking strength and increase in the elongation at break of the starch-based composite fibers as the starch content increased. After degradation in soil for 5 months, the surface of the composite fibers had been deteriorated, while flocculent layers were observed and a large number of microfibers appeared. And the weight loss rate of the starch-based composite fibers (5.2~34.8%) significantly increased with increasing starch content (50~90 wt%).

Facile fabrication of PVA composite fibers with high fraction of multiwalled carbon nanotubes by gel spinning

2017 ◽  
Vol 58 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Yizhe Wei ◽  
Dengpan Lai ◽  
Liming Zou ◽  
Xinlong Ling ◽  
Hongwei Lu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Composite Fibers ◽  
Gel Spinning ◽  
Multiwalled Carbon ◽  
Facile Fabrication ◽  
High Fraction

Effect of montmorillonite on the oxidative stability of polyphenylene sulfide fibers prepared by melt spinning

2021 ◽  
pp. 004051752110134
Author(s):  
Jian Xing ◽  
Shunhua Dai ◽  
Zhong Chen ◽  
Yongkang Wang ◽  
Zhenghua Zhang ◽  
...  
Keyword(s):  
Oxidative Stability ◽  
Melt Spinning ◽  
Breaking Strength ◽  
Strength Loss ◽  
Polyphenylene Sulfide ◽  
Composite Fibers ◽  
Oxidation Treatment ◽  
Transmission Electron ◽  
Chemical Combination ◽  
Induction Temperature

Masterbatches of polyphenylene sulfide (PPS)/organic montmorillonite (MMT) composites were produced via melt blending. A self-made spinning equipment was then used to produce the PPS/organic MMT composite fibers by melt spinning directly from the masterbatches. X-ray diffractometer and transmission electron microscope were used to examine the dispersibility of organic MMT. The morphology, tensile property, crystallization behavior, and oxidative stability of PPS fibers were investigated. The results indicated that organic MMT could be uniformly distributed in the PPS matrix to form a mixed dispersion of intercalated and exfoliated structure and influence the longitudinal surface morphology of fibers to become rough. The roughness of composite fibers surface was proportional to the content of organic MMT. The organic MMT nanolayers could act as the heterogeneous nucleating agents to improve the crystallization, and the crystallity of composite fibers increased with the increase of organic MMT content. The breaking strength of composite fibers first increased and then decreased by increasing the amount of organic MMT. After the oxidation treatment, the breaking strength of neat PPS fibers and composite fibers declined, but the degree of breaking strength loss for composite fibers is lower than that of neat PPS fibers. The dynamic oxidation induction temperature of composite fibers also showed a significant increase by adding organic MMT. Moreover, the addition of organic MMT could limit the chemical combination of element sulfur and oxygen, retard the generation of sulfoxide groups, and induce the conversion of sulfur atoms from C-S bond to sulfone for improving oxidative stability.

PLA/Carbon Nanotubes Multifilament Yarns for Relative Humidity Textile Sensor

2011 ◽  
Vol 6 (3) ◽  
pp. 155892501100600 ◽  
Author(s):  
Eric Devaux ◽  
Carole Aubry ◽  
Christine Campagne ◽  
Maryline Rochery
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Relative Humidity ◽  
Melt Spinning ◽  
Flexible Sensor ◽  
Spinning Process ◽  
Textile Sensor ◽  
Multifilament Yarns

Polylactide (PLA) was mixed with 4 wt.% of carbon nanotubes (CNTs) to produce electrical conductive multifilament yarns by melt spinning process for humidity detection. Thanks to a variation of electrical conductivity, this flexible sensor could detect the moisture presence. The introduction of plasticizer was necessary to ensure higher fluidity and drawability of the blend during the spinning process. The plasticizer modifies the crystallinity and the mechanical properties of the yarns. The effectiveness of this sensor (PLA/4 wt.% CNTs fibres) sensitive to humidity, is optimal when the spinning conditions are adapted. In this way, the temperature and the rate of the drawing roll were reduced. The influence of these parameters on the crystallinity, the mechanical properties and the sensitivity of the yarns were studied. Once the appropriate spinning conditions found, one humidity sensitive yarn was processed and the repeatability and efficient reversibility of its sensitivity were highlighted.

Melt Spinning of Cellulose Nanofibril/Polylactic Acid (CNF/PLA) Composite Fibers For High Stiffness

2018 ◽  
Vol 1 (2) ◽  
pp. 160-168 ◽  
Author(s):  
Caitlyn M. Clarkson ◽  
Sami M. El Awad Azrak ◽  
Reaz Chowdhury ◽  
Shoumya Nandy Shuvo ◽  
James Snyder ◽  
...  
Keyword(s):  
Polylactic Acid ◽  
Melt Spinning ◽  
Cellulose Nanofibril ◽  
Composite Fibers ◽  
High Stiffness

Alignment of carbon nanotubes and reinforcing effects in nylon-6 polymer composite fibers

2008 ◽  
Vol 19 (24) ◽  
pp. 245703 ◽  
Author(s):  
Vijaya K Rangari ◽  
Mohammed Yousuf ◽  
Shaik Jeelani ◽  
Merlyn X Pulikkathara ◽  
Valery N Khabashesku
Keyword(s):  
Carbon Nanotubes ◽  
Polymer Composite ◽  
Nylon 6 ◽  
Composite Fibers ◽  
Reinforcing Effects

scholarly journals Melt-Processing and Properties of Coaxial Fibers Incorporating Carbon Nanotubes

2012 ◽  
Vol 7 (3) ◽  
pp. 155892501200700 ◽  
Author(s):  
Alexis Laforgue ◽  
Michel F. Champagne ◽  
Jean Dumas ◽  
Lucie Robitaille
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Melt Spinning ◽  
Data Transfer ◽  
Melt Processing ◽  
Multiwalled Carbon ◽  
Insulating Layer ◽  
Low Viscosity ◽  
One Step ◽  
Coaxial Fibers

Polypropylene-multiwalled carbon nanotube (PP-CNT) composites were spun into fibers using melt-spinning methods. The CNT content was varied by diluting the commercial masterbatch with a low viscosity PP homopolymer grade. The conductivity, as well as the mechanical properties, of the fibers were systematically tested in order to find the optimal formulation. Post-stretching was used to improve the mechanical properties of the fibers as well as to decrease the fiber diameters. Fibers having a conductivity of 0.4 S/cm, a Young's modulus of 5.4 GPa and a tensile strength of 250 MPa were obtained after a three-fold stretching. Trilayer coaxial fibers similar to data transfer coaxial cables (two conductive layers separated by an insulating layer) were then produced in a one-step melt-spinning method using a specially designed die, followed by solid state post-stretching.

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