Improved Mechanical Properties of Compatibilized Polypropylene/Polyamide-12 Blends
International Journal of Polymer Science, 2015 Compatibilized blends of polypropylene (PP) and polyamide-12 (PA12) as a second component were obtained by direct injection molding having first added 20% maleic anhydride-modified copolymer (PP-g-MA) to the PP, which produced partially grafted PP (gPP).
Nora Aranburu, José Ignacio Eguiazábal
doaj +1 more source
Evidence for binarity in the bipolar planetary nebulae A79, He2-428 and M1-91 [PDF]
, 2001 We present low and high resolution long-slit spectra of three bipolar planetary nebulae (PNe) with bright central cores: A79, He2-428 and M1-91. He2-428 and M1-91 have high density (from 10^3.3 to 10^6.5 cm^-3) unresolved nebular cores that indicate that
A. Mampaso +55 more
core +2 more sources
In-situ alignment of anisotropic hard magnets of 3D printed magnets [PDF]
arXiv, 2022 Within this work, we demonstrate in-situ easy-axis alignment of single-crystal magnetic particles inside a polymer matrix using fused filament fabrication. Two different magnetic materials are investigated: (i) Strontium hexaferrite inside a PA6 matrix, fill grade: 49 vol% and (ii) Samarium iron nitride inside a PA12 matrix, fill grade: 44 vol%. In the
arxiv
Mechanical Properties Characterization for Polyamide Matrix Dairy Protein Composites Fabricated Using Selective Laser Sintering Process [PDF]
, 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.
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Einstein's equations in Ashtekar's variables constitute a symmetric hyperbolic system [PDF]
, 1997 We show that the 3+1 vacuum Einstein field equations in Ashtekar's variables constitutes a first order symmetric hyperbolic system for arbitrary but fixed lapse and shift fields, by suitable adding to the system terms proportional to the constraint ...
A. Abraham +12 more
core +2 more sources
C, 2021 In this study, nanocomposites with polyamide 12 (PA12) as the polymer matrix and multiwalled carbon nanotubes (MWCNTs) and carbon black (CB) at different loadings (2.5, 5.0, and 10.0 wt.%) as fillers, were produced in 3D printing filament form by melt ...
Nectarios Vidakis +5 more
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Gravitational Couplings of Higher Spins from String Theory
, 2010 We calculate the interaction 3-vertex of two massless spin 3 particles with a graviton using vertex operators for spin 3 fields in open string theory, constructed in our previous work.
Boulanger N. +4 more
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Polymer-bonded anisotropic SrFe$_\text{12}$O$_\text{19}$ filaments for fused filament fabrication [PDF]
, 2019 In this publication we describe the extrusion process and the properties of polymer-bonded anisotropic SrFe$_\text{12}$O$_\text{19}$ filaments for fused filament fabrication (FFF). Highly filled polyamide 12 filaments with a filling fraction from 40 vol.% to 55 vol.% are mixed and extruded into filaments with a diameter of 1.75 mm.
arxiv +1 more source
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
High-strength light-weight aramid fibre/polyamide 12 composites printed by Multi Jet Fusion
Virtual and Physical Prototyping, 2022 Multi Jet Fusion (MJF) is a fast-growing powder bed fusion(PBF) additive manufacturing technique which features low production costs and high production speeds.
Jiayao Chen +6 more
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