Results 1 to 10 of about 1,769 (100)

Ageing of laser sintered glass-filled Polyamide 12 (PA12) parts at elevated temperature and humidity [PDF]

open access: yesPolymers and Polymer Composites, 2021
Additive manufacturing is traditionally used to manufacture either prototypes or very small-scale demonstrators. In recent years though, it is being increasingly used to make low volume parts for the aeronautical and defence industry. One concern with laser sintered parts is that their relatively porous nature, means that they may be more susceptible ...
Thomas Dooher   +4 more
openaire   +5 more sources

Fracture assessment of polyamide 12 (PA12) specimens fabricated via Multi Jet FusionTM in the presence of geometrical discontinuities [PDF]

open access: yesEngineering Fracture Mechanics
This study aims to study the fracture resistance of additively manufactured polyamide 12 (PA12), specifically when subjected to notches and cracks, and how it varies with the printing direction using Multi Jet Fusion (MJF). The methodology involved conducting tensile tests on V-notched samples, with a focus on different combinations of opening angle (0◦
Andrea Avanzini   +4 more
openaire   +3 more sources

Morphology and mechanical properties of polyamide 12 (PA12)/poly(vinylidene fluoride) (PVDF) blends [PDF]

open access: yesPJCT, 2009
Morphology and mechanical properties of polyamide 12 (PA12)/poly(vinylidene fluoride) (PVDF) blends The morphology, thermal and mechanical properties of polyamide 12 (PA12)/poly(vinylidene fluoride) (PVDF) blends were investigated. These polymers are engineering, semi-crystalline polymers which are reciprocally immiscible.
Zbigniew Roslaniec   +4 more
openaire   +2 more sources

Mechanical and Tribological Properties of 3D Printed Polyamide 12 and SiC/PA12 Composite by Selective Laser Sintering

open access: yesPolymers, 2022
Polymeric matrix composites are important to the advancement of industries such as the automobile and medicine industries. In this study, the silicon carbide (SiC) particle-reinforced polyamide12 (PA12) matrix composites were fabricated by selective laser sintering system as well as the pure PA12.
Yu, Guoyan   +5 more
openaire   +2 more sources

Nanoclay/Polymer Composite Powders for Use in Laser Sintering Applications: Effects of Nanoclay Plasma Treatment [PDF]

open access: yes, 2017
Plasma-etched nanoclay-reinforced Polyamide 12 (PA12) powder is prepared with its intended use in selective laser sintering (LS) applications. To replicate the LS process we present a downward heat sintering (DHS) process, carried out in a hot press, to ...
Almansoori, A.   +2 more
core   +2 more sources

Comparative characterization of hot-pressed polyamide 11 and 12: mechanical, thermal and durability properties [PDF]

open access: yes, 2021
Chemically speaking, polyamide 11 (PA11) and polyamide 12 (PA12) have a similar backbone, differing only in one carbon. From an origin point of view, PA11 is considered a bioplastic polyamide composed from renewable resources, compared to oil-based PA12.
Abenojar Buendía, Juana   +2 more
core   +1 more source

Mechanical Properties Characterization for Polyamide Matrix Dairy Protein Composites Fabricated Using Selective Laser Sintering Process [PDF]

open access: yes, 2022
This work investigates the viability of casein protein for manufacturing engineering structures. Polyamide 12 (PA12) was used as a matrix for different compositions of casein up to 20 wt%. Test samples were fabricated for neat PA12 and the composites
Delwiche, M., Obielodan, J.
core   +2 more sources

Polyamide Nanocomposites for Selective Laser Sintering [PDF]

open access: yes, 2006
Current polyamide 11 and 12 are lacking in fire retardancy and high strength/high heat resistance characteristics for a plethora of finished parts that are desired and required for performance driven applications.
Cheng, J.   +6 more
core   +1 more source

Polyamide 11-Carbon Nanotubes Nanocomposites: Preliminary Investigation [PDF]

open access: yes, 2008
The objective of this research is to develop an improved polyamide 11 (PA11) polymer with enhanced flame retardancy, thermal, and mechanical properties for selective laser sintering (SLS) rapid manufacturing.
Koo, J. H.   +9 more
core   +1 more source

Intumescent Flame Retardant Polyamide 11 Nanocomposites [PDF]

open access: yes, 2007
Current polyamide 11 and 12 are lacking in fire retardancy and high strength/high heat resistance characteristics for a plethora of fabricated parts that are desired and required for performance driven applications.
Jor, H.   +9 more
core   +1 more source

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