Results 21 to 30 of about 3,120 (211)
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
openaire +1 more source
TRIBOLOGICAL PROPERTIES OF LOW DENSITY POLYETHYLENE AND POLYAMIDE 12 AS POLYMER MATRIX NANOCOMPOSITES [PDF]
Journal of the Egyptian Society of Tribology, 2017 Polymeric nanocomposites (PNCs) have solved many problems due to their extensive applications such as aerospace, automobiles, coatings, and packaging materials.
A. El-Sayed M. Hassan +3 more
doaj +1 more source
Cardiac chymase converts rat proAngiotensin-12 (PA12) to angiotensin II: effects of PA12 upon cardiac haemodynamics [PDF]
Cardiovascular Research, 2009 The aim of this study was to observe the direct physiological and biochemical cardiac effects in response to a newly identified putative component of the renin-angiotensin system, proangiotensin-12 (PA12); and investigate whether PA12 can serve as a substrate for Angiotensin II (AngII) generation.The direct cardiac actions of PA12 and its role as a ...
Hamish C G, Prosser +3 more
openaire +2 more sources
Effect of molecular weight and hydration on the tensile properties of polyamide 12
Results in Materials, 2020 Polyamide 12 (PA12) has found significant applications in the medical device industry, including its common use as an outer jacket layer in catheters. Like all polymers, PA12 can undergo degradation reactions, which compromise the mechanical and physical
Athanasios Touris +6 more
doaj +1 more source
Effect of Reinforcement with Short Carbon Fibers on the Friction and Wear Resistance of Additively Manufactured PA12 [PDF]
, 2023 Reinforcing thermoplastic materials for additive manufacturing with either short, long, and continuous fibers or micro/nanoparticles is a sound means to enhance the mechanical/tribological properties of functional 3D printed objects. However, despite the
Saleh Ahmed Aldahash +1 more
core +1 more source
Mechanical properties and morphology of HDPE/PA12 blends compatibilized with HDPE-alt-MAH
Polymers and Polymer Composites, 2022 The objective of this work is to study the effect of the addition of the compatibilizing agent poly(ethylene-alt-maleic anhydride) (HDPE-alt-MAH) on the mechanical properties and morphology of HDPE/PA12 blends.
Geovane de Almeida Santos da Silva +1 more
doaj +1 more source
Recycling of PA12 powder for selective laser sintering [PDF]
AIP Conference Proceedings, 2020 In selective laser sintering (SLS) predominantly polyamide 12 powder (PA12) is used. Often, after the sintering process approximately 70 % of powder, which has not been sintered, remains. The flow properties of this used powder have been affected because of the thermal stress during the sintering process.
Sandra Weinmann, Christian Bonten
openaire +1 more source
Transcrystallization with Reorientation in Drawn PET/PA12 Blend as Revealed by WAXS from Synchrotron Radiation [PDF]
, 1999 Studying the isotropisation kinetics during melting of a drawn poly(ethylene terephthalate) (PET)/polyamide 12 (PA12) blend (60/40 wt %) at TmPA12 < Ta < TmPET by means of wide-angle X-ray scattering (WAXS) from synchrotron radiation a ...
Denchev, Z. +7 more
core +1 more source
Virtual and Physical Prototyping, 2023 Multi jet fusion (MJF), a powder-based additive manufacturing technology, is suitable for fabricating fibre-reinforced polymer composites. However, the types of reinforcement fibres applied in MJF are limited due to the incompatibility between the fibres
Yanbei Hou +8 more
doaj +1 more source
Materials & Design, 2020 We report a novel method to prepare near-spherical polyamide 12 (PA12) particles with controllable size for selective laser sintering (SLS) technology based on the Plateau-Rayleigh instability of molten PA12 fibers.
Ying Zhou +5 more
doaj +1 more source