Evaluation of poly(vinylidene fluoride)/carbon black composites, manufactured by selective laser sintering

2021 ◽  
Author(s):  
Joffre Luis Brito Guaricela ◽  
Carlos Henrique Ahrens ◽  
Guilherme Mariz Oliveira Barra ◽  
Claudia Merlini
Keyword(s):  
Carbon Black ◽  
Vinylidene Fluoride ◽  
Selective Laser Sintering ◽  
Laser Sintering ◽  
Poly Vinylidene Fluoride

MgO whiskers reinforced poly(vinylidene fluoride) scaffolds

RSC Advances ◽  
2016 ◽  
Vol 6 (110) ◽  
pp. 108196-108202 ◽  
Author(s):  
Wei Huang ◽  
Ping Wu ◽  
Pei Feng ◽  
Youwen Yang ◽  
Wang Guo ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Selective Laser Sintering ◽  
Biological Properties ◽  
Laser Sintering ◽  
Poly Vinylidene Fluoride

In this study, poly(vinylidene fluoride) (PVDF) scaffolds with MgO whiskers were prepared through selective laser sintering, and their properties were studied in terms of mechanical and biological properties.

scholarly journals Microstructure, Mechanical, and Biological Properties of Porous Poly(vinylidene fluoride) Scaffolds Fabricated by Selective Laser Sintering

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Wei Huang ◽  
Pei Feng ◽  
Chengde Gao ◽  
Xiong Shuai ◽  
Tao Xiao ◽  
...  
Keyword(s):  
Energy Density ◽  
Vinylidene Fluoride ◽  
Laser Energy ◽  
Selective Laser Sintering ◽  
Biological Properties ◽  
Laser Sintering ◽  
Light Yellow ◽  
Mg63 Cells ◽  
Poly Vinylidene Fluoride ◽  
Porous Poly

Porous poly(vinylidene fluoride) (PVDF) scaffolds were prepared by selective laser sintering. The effects of laser energy density, ranging from 0.66 to 2.16 J/mm2, on microstructure and mechanical properties were investigated. At low energy density levels, PVDF particles could fuse well and the structure becomes dense with the increase of the energy density. Smoke and defects (such as holes) were observed when the energy density increased above 1.56 J/mm2which indicated decomposition of the PVDF powder. The scaffolds appeared to be light yellow and there was a reduction in tensile strength. The fabricated scaffolds were immersed into simulated body fluid for different time to evaluate biostability. In addition, MG63 cells were seeded and cultured for different days on the scaffolds. The testing results showed that the cells grew and spread well, indicating that PVDF scaffolds had good biocompatibility.

Plasma-Assisted Functionalization of the Carbon Black Surface: Enhancement of Mechanical Properties of Carbon Black/Poly(vinylidene fluoride-co-hexafluoropropene) Nanofibers

2020 ◽  
Vol 20 (9) ◽  
pp. 5648-5653
Author(s):  
Jingjing Zhang ◽  
Yeong Min Park ◽  
Xing Yan Tan ◽  
Mun Ki Bae ◽  
Seung Pyo Hong ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Black ◽  
Polymer Composites ◽  
Vinylidene Fluoride ◽  
Thermal Conductance ◽  
Strain Curve ◽  
Chemical Vapor ◽  
Nitrogen Plasma ◽  
Poly Vinylidene Fluoride ◽  
Black Surface

Dispersion of carbon black (CB) powder in CB/polymer composites considerably influences their mechanical properties, electrical conductivity, and thermal conductance. In this study, with the aim to improve the dispersion of CB powder in the CB/polymer composites, CB was treated with oxygen and nitrogen plasma generated by radio frequency-plasma enhanced chemical vapor deposition (RF-PECVD), and then, dispersed in a poly(vinylidene fluoride-co-hexafluoropropene) (PVDF-HFP) solution. The solution was then subjected to electrospinning, leading to the formation of a nanofiber mat. The dispersion states of plasma treated CBs have been characterized using scanning electron microscopy and Fourier-transform infrared spectroscopy. A stress–strain curve was used to investigate the influence of dispersion on the mechanical properties of CB/polymer composites.

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