Processable Thermally Conductive Polyurethane Composite Fibers

2018 ◽  
Vol 304 (3) ◽  
pp. 1800542 ◽  
Author(s):  
Syamak Farajikhah ◽  
Rebecca Amber ◽  
Sepidar Sayyar ◽  
Sajjad Shafei ◽  
Cormac D. Fay ◽  
...  
Keyword(s):  
Composite Fibers ◽  
Polyurethane Composite ◽  
Thermally Conductive

scholarly journals Development of Thermally Conductive Polyurethane Composite by Low Filler Loading of Spherical BN/PMMA Composite Powder

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Kai-Han Su ◽  
Cherng-Yuh Su ◽  
Cheng-Ta Cho ◽  
Chung-Hsuan Lin ◽  
Guan-Fu Jhou ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Heat Dissipation ◽  
Three Dimensional ◽  
Filler Loading ◽  
High Thermal Conductivity ◽  
Heat Diffusion ◽  
Composite Powders ◽  
Polyurethane Composite ◽  
Uniform Dispersion ◽  
Thermally Conductive

Abstract The issue of electronic heat dissipation has received much attention in recent times and has become one of the key factors in electronic components such as circuit boards. Therefore, designing of materials with good thermal conductivity is vital. In this work, a thermally conductive SBP/PU composite was prepared wherein the spherical h-BN@PMMA (SBP) composite powders were dispersed in the polyurethane (PU) matrix. The thermal conductivity of SBP was found to be significantly higher than that of the pure h-BN/PU composite at the same h-BN filler loading. The SBP/PU composite can reach a high thermal conductivity of 7.3 Wm−1 K−1 which is twice as high as that of pure h-BN/PU composite without surface treatment in the same condition. This enhancement in the property can be attributed to the uniform dispersion of SBP in the PU polymer matrix that leads to a three-dimensional continuous heat conduction thereby improving the heat diffusion of the entire composite. Hence, we provide a valuable method for preparing a 3-dimensional heat flow path in polyurethane composite, leading to a high thermal conductivity with a small amount of filler.

High conductive free-written thermoplastic polyurethane composite fibers utilized as weight-strain sensors

2020 ◽  
Vol 189 ◽  
pp. 108011 ◽  
Author(s):  
Shijie Zhang ◽  
Zuoli He ◽  
Gengheng Zhou ◽  
Byung-Mun Jung ◽  
Tae-Hoon Kim ◽  
...  
Keyword(s):  
Thermoplastic Polyurethane ◽  
Strain Sensors ◽  
Composite Fibers ◽  
Polyurethane Composite

scholarly journals Compositional Effects of Large Graphene Oxide Sheets on the Spinnability and Properties of Polyurethane Composite Fibers

2016 ◽  
Vol 3 (5) ◽  
pp. 1500672 ◽  
Author(s):  
Shayan Seyedin ◽  
Joselito M. Razal ◽  
Peter C. Innis ◽  
Rouhollah Jalili ◽  
Gordon G. Wallace
Keyword(s):  
Graphene Oxide ◽  
Composite Fibers ◽  
Polyurethane Composite ◽  
Compositional Effects ◽  
Graphene Oxide Sheets

Carbon nanotube-reinforced polyurethane composite fibers

2006 ◽  
Vol 66 (15) ◽  
pp. 3029-3034 ◽  
Author(s):  
Wei Chen ◽  
Xiaoming Tao ◽  
Yuyang Liu
Keyword(s):  
Carbon Nanotube ◽  
Composite Fibers ◽  
Polyurethane Composite

Fabrication of Conductive Polypyrrole/Polyurethane Composite Fibers for Large Strain Sensing

2012 ◽  
Vol 482-484 ◽  
pp. 1142-1145 ◽  
Author(s):  
Xiao Lin Zhang ◽  
Zong Yi Qin ◽  
Long Chen
Keyword(s):  
Large Strain ◽  
Fiber Surface ◽  
Smart Device ◽  
Strain Sensing ◽  
Composite Fibers ◽  
Resistance Response ◽  
Polyurethane Composite ◽  
Sensing Material ◽  
Device Applications ◽  
Conductive Polypyrrole

A kind of flexible, conductive polypyrrole–coated polyurethane (PPy/PU) fibers was fabricated by controlled chemical polymerization and its strain sensing ability was evaluated. The as-prepared fibers possessed high conductivity with a maximum value of 10-1 (Ω•cm)-1, and highly elastic nature of the PU matrix. It is further found that dense PPy layer was covered uniformly onto PU fiber surface, and an interpenetrating interface and strong hydrogen bonding interaction could be observed, which greatly benefited their high structural stability. More importantly, the composite fibers exhibited a wide strain deformation range up to 250% and high strain sensitivity of over 20 (at the large strain of 50%), and good reversible resistance response on cyclic force loading, which would open a high opportunity for fabricating strain sensing material in large volume for future smart device applications.

Wearable strain sensor based on highly conductive carbon nanotube/polyurethane composite fibers

2020 ◽  
Vol 31 (20) ◽  
pp. 205701 ◽  
Author(s):  
Zaiyu Zhuang ◽  
Na Cheng ◽  
Liuyue Zhang ◽  
Lianmei Liu ◽  
Jianwei Zhao ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Strain Sensor ◽  
Composite Fibers ◽  
Polyurethane Composite

Effect of MWCNT content on the mechanical and strain-sensing performance of Thermoplastic Polyurethane composite fibers

Carbon ◽  
2019 ◽  
Vol 146 ◽  
pp. 701-708 ◽  
Author(s):  
Zuoli He ◽  
Joon-Hyung Byun ◽  
Gengheng Zhou ◽  
Byeong-Jin Park ◽  
Tae-Hoon Kim ◽  
...  
Keyword(s):  
Thermoplastic Polyurethane ◽  
Strain Sensing ◽  
Composite Fibers ◽  
Mwcnt Content ◽  
Polyurethane Composite ◽  
Sensing Performance

Conductive Polypyrrole/Polyurethane Composite Fibers for Chloroform Gas Detection

2013 ◽  
Vol 750-752 ◽  
pp. 55-58 ◽  
Author(s):  
Xin Liu ◽  
Zong Yi Qin ◽  
Xiao Lin Zhang ◽  
Long Chen ◽  
Mei Fang Zhu
Keyword(s):  
High Sensitivity ◽  
Fast Response ◽  
Gas Detection ◽  
Composite Fibers ◽  
Vapor Detection ◽  
Polyurethane Composite ◽  
Response And Recovery ◽  
High Structural Stability ◽  
Conductive Fibers

Flexible conductive fibers were fabricated by in-situ chemical polymerization of pyrrole monomers on the surface of polyurethane (PU) fibers. Compact polypyrrole (PPy) surface layer were observed, and moreover, high structural stability of the composite fibers can be obtained due to interpenetrating interface formation and strong interaction between PPy layers and PU matrix. More importantly, the composite fibers exhibited high sensitivity with relative fast response and recovery time, and good reproducibility for chloroform vapor detection.

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