Results 31 to 40 of about 8,249 (238)
Micromachines, 2022 In this work, polyamide 12 (PA12) and carbon fiber reinforced polyamide 12 (CF/PA12) composites were fabricated using selective laser sintering (SLS), and the coupling effects of the strain rate and hygroscopicity on the compressive mechanical properties
Xiaodong Zheng, Jiahuan Meng, Yang Liu
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Aging of PA12 Powder in Powder Bed Fusion
Applied Sciences, 2023 Powder Bed Fusion (PBF) is a popular additive manufacturing technology due to its high build resolution and ability to produce microscale geometries without the use of additional support. Despite the many benefits of PBF, there are still some limitations associated with the materials to be built. A critical industrial limit is the aging of PA12 powder,
Achille Gazzerro +3 more
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Virtual and Physical Prototyping, 2021 Multi jet fusion (MJF) is an emerging powder three-dimensional (3D) printing technology with an ultrafast printing speed, in which polyamide 12 (PA12) is the main material currently utilised.
Binbin Guo +3 more
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PA12 Powder Recycled from SLS for FDM [PDF]
Polymers, 2019 In this study, Polyamide 12 (PA12) powder recycled after selective laser sintering (SLS) was made into filaments for fused deposition modelling (FDM). Compared with fresh PA12, the melt flow rate (MFR) of the recycled PA12 powder decreased by 77%, but the mechanical properties were only slightly reduced.
Li Feng, Yan Wang, Qinya Wei
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Mechanisms of rapid fracture in PA12 grades
Theoretical and Applied Fracture Mechanics, 2022 Abstract Evidence is presented for an adiabatic decohesion mechanism of Rapid Crack Propagation (RCP) in polyamide (PA) 12. RCP was induced in pipe specimens using the Small–Scale Steady–State (S4) test. Fractography revealed a surface of “flakes” attached to the bulk through highly fibrillated regions.
Mario Messiha +4 more
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Nanoclay/Polymer Composite Powders for Use in Laser Sintering Applications: Effects of Nanoclay Plasma Treatment [PDF]
, 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
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Crystal transition and thermal behavior of Nylon 12
e-Polymers, 2020 The polyamide 12 (PA12) with different crystal forms is prepared with three crystallization paths. The crystal structures and corresponding thermal properties are systematically investigated.
Ma Ning +8 more
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Colloids and Interfaces, 2023 The possibility of obtaining porous films through solutions of polylaurolactam (PA12) in benzyl alcohol (BA) was considered. The theoretical calculation of the phase diagram showed the presence of the upper critical solution temperature (UCST) for the ...
Svetlana O. Ilyina +2 more
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Polyamide Nanocomposites for Selective Laser Sintering [PDF]
, 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
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Cogent Engineering, 2023 The current research utilizes a low voltage scanning electron microscopy (LV-SEM) with an electron beam along with low loading energy of lower than 2.2 KeV to minimize damage and specimen surface charging. The NovaSEM, is used as an efficient tool in the
Mohammed M. Sabri +2 more
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