Selective Laser Sintering Manufacturing and Characterization of Lightweight PA 12 Polymer Composites with Different Hollow Microsphere Additives

2022 ◽  
Author(s):  
Burçin Özbay Kısasöz ◽  
İ. Ersin Serhatlı ◽  
M. Enes Bulduk
Keyword(s):  
Polymer Composites ◽  
Selective Laser Sintering ◽  
Hollow Microsphere ◽  
Laser Sintering

scholarly journals Selective laser sintering of copper filled polyamide 12: Characterization of powder properties and process behavior

2018 ◽  
Vol 40 (5) ◽  
pp. 1801-1809 ◽  
Author(s):  
Lydia Lanzl ◽  
Katrin Wudy ◽  
Sandra Greiner ◽  
Dietmar Drummer
Keyword(s):  
Selective Laser Sintering ◽  
Laser Sintering ◽  
Polyamide 12 ◽  
Process Behavior ◽  
Powder Properties

scholarly journals Selective laser sintering responses of keratin-based bio-polymer composites

2019 ◽  
Vol 183 ◽  
pp. 108087 ◽  
Author(s):  
Sarat Singamneni ◽  
Rajkumar Velu ◽  
Malaya Prasad Behera ◽  
Sonya Scott ◽  
Peter Brorens ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Selective Laser Sintering ◽  
Laser Sintering

Processing-Structure-Property Relations of Polymer-Polymer Composites Formed by Cryogenic Mechanical Alloying for Selective Laser Sintering Applications

2000 ◽  
Vol 625 ◽  
Author(s):  
J. P. Schultz ◽  
J. P. Martin ◽  
R. G. Kander ◽  
C. T. A. Suchicital
Keyword(s):  
Mechanical Alloying ◽  
Polymer Composites ◽  
Effective Means ◽  
Selective Laser Sintering ◽  
Domain Size ◽  
Laser Sintering ◽  
Charge Ratio ◽  
Composite Particles ◽  
Structure Property ◽  
Composite Powders

AbstractCryogenic mechanical alloying (CMA) has been shown to be an effective means for producing composite powders for selective laser sintering (SLS). Unlike composite particles made by a coating process, both phases are continuous throughout the particles formed by CMA. Consolidation of these composite particles via SLS offers the possibility of forming parts with a co-continuous microstructure. In this research, the microstructure of mechanically alloyed polymer-polymer composites for use in the SLS process is investigated using transmission electron microscopy. By varying the charge ratio and milling time of the CMA process, the phase domain size of the resulting composite powder can be manipulated. This ongoing work explores the microstructural evolution as the composite powders are consolidated via SLS into macroscopic parts, as well as the relationships between microstructure and bulk properties.

Characterization of direct selective laser sintering of alumina

2017 ◽  
Vol 94 (5-8) ◽  
pp. 2333-2341 ◽  
Author(s):  
E. M. Fayed ◽  
A. S. Elmesalamy ◽  
M. Sobih ◽  
Y. Elshaer
Keyword(s):  
Selective Laser Sintering ◽  
Laser Sintering

Quasicrystal–polymer composites for selective laser sintering technology

2012 ◽  
Vol 35 ◽  
pp. 691-695 ◽  
Author(s):  
S. Kenzari ◽  
D. Bonina ◽  
J.M. Dubois ◽  
V. Fournée
Keyword(s):  
Polymer Composites ◽  
Selective Laser Sintering ◽  
Laser Sintering

Characterization of PA12/PBT specimens prepared by selective laser sintering

2018 ◽  
Vol 98 ◽  
pp. 92-96 ◽  
Author(s):  
G.V. Salmoria ◽  
V.R. Lauth ◽  
M.R. Cardenuto ◽  
R.F. Magnago
Keyword(s):  
Selective Laser Sintering ◽  
Laser Sintering

Processing and Characterization of Core-Shell PA12/Silica Composites Produced by Selective Laser Sintering

2010 ◽  
Vol 160-162 ◽  
pp. 756-761 ◽  
Author(s):  
Jian Hong Wang ◽  
Pei Kang Bai ◽  
Zhen Lin Zhang ◽  
Yu Xin Li
Keyword(s):  
Emulsion Polymerization ◽  
Silica Particle ◽  
Selective Laser Sintering ◽  
Laser Sintering ◽  
Silica Particles ◽  
Sintering Behavior ◽  
Core Shell ◽  
Dense Structure ◽  
Maximum Value

Silica particles coated with PA12 by emulsion polymerization were used as fillers to reinforce PA12 based composites prepared by selective laser sintering (SLS). The influences of the treated and untreated particles on the sintering behavior and mechanical properties of the laser sintered specimens were investigated. It was found that there were many uneven holes in the untreated composites. However, for the treated composites, due to the silica particle surfaces treated by emulsion polymerization, the absorbance of laser was improved and the particles dispersed well in the polymer matrix; a full dense structure was obtained and the properties were enhanced, such as the tend strength increased 30%, the maximum value was 34MPa; the tensile strength increased up to 125%, the maximum value was 44.2 MPa, comparing to the unfilled PA12. Drawing from the results, it can be confirmed that a full dense structure can be obtained and the PA12 matrix was strengthened and toughened when the silica particles were coated with PA12 by emulsion polymerization.

Sign in / Sign up

Export Citation Format

Share Document