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.

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 Manufacturing of Porous Polycaprolactone Prepared with Different Particle Sizes and Infrared Laser Sintering Conditions: Microstructure and Mechanical Properties

2014 ◽  
Vol 6 ◽  
pp. 640496 ◽  
Author(s):  
G. V. Salmoria ◽  
D. Hotza ◽  
P. Klauss ◽  
L. A. Kanis ◽  
C. R. M. Roesler
Keyword(s):  
Mechanical Properties ◽  
Energy Density ◽  
Laser Energy ◽  
Flexural Modulus ◽  
Selective Laser Sintering ◽  
Polymeric Materials ◽  
Laser Sintering ◽  
Laser Energy Density ◽  
Particle Sizes ◽  
Mechanical Devices

The techniques of Rapid Prototyping, also known as Additive Manufacturing, have prompted research into methods of manufacturing polymeric materials with controlled porosity. This paper presents the characterization of the structure and mechanical properties of porous polycaprolactone (PCL) fabricated by Selective Laser Sintering (SLS) using two different particle sizes and laser processing conditions. The results of this study indicated that it is possible to control the microstructure, that is, pore size and degree of porosity, of the polycaprolactone matrix using the SLS technique, by varying the particle size and laser energy density, obtaining materials suitable for different applications, scaffolds and drug delivery and fluid mechanical devices. The specimens manufactured with smaller particles and higher laser energy density showed a higher degree of sintering, flexural modulus, and fatigue resistance when compared with the other specimens.

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

scholarly journals Nanocomposite multilayer capacitors comprising BaTiO3@TiO2 and poly(vinylidene fluoride-hexafluoropropylene) for dielectric-based energy storage

2014 ◽  
Vol 04 (02) ◽  
pp. 1450009 ◽  
Author(s):  
Mojtaba Rahimabady ◽  
Li Lu ◽  
Kui Yao
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Vinylidene Fluoride ◽  
Discharge Rate ◽  
Low Cost ◽  
Breakdown Field ◽  
High Discharge ◽  
High Discharge Rate ◽  
Poly Vinylidene Fluoride ◽  
Multilayer Capacitors

Multilayer dielectric capacitors were fabricated from nanocomposite precursor comprised of BaTiO 3@ TiO 2 core–shell nanosized particles and poly(vinylidene fluoride–hexafluoropropylene) (P(VDF–HFP)) polymer matrix (20 vol%). The multilayer capacitors showed very high discharge speed and high discharged energy density of around 2.5 J/cm3 at its breakdown field (~ 166 MV/m). The energy density of the nanocomposite multilayer capacitors was substantially higher than the energy density of commercially used power capacitors. Low cost, flexible structure, high discharge rate and energy density suggest that the nanocomposite multilayer capacitors are promising for energy storage applications in many power devices and systems.

Enhanced Permittivity and Energy Density in Neat Poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) Terpolymer Films through Control of Morphology

2014 ◽  
Vol 6 (12) ◽  
pp. 9584-9589 ◽  
Author(s):  
O’Neil L. Smith ◽  
Yunsang Kim ◽  
Mohanalingam Kathaperumal ◽  
Matthew R. Gadinski ◽  
Ming-Jen Pan ◽  
...  
Keyword(s):  
Energy Density ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride
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