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Structure and properties of polyamide 12 alloys
2007Polymer alloys composed polylaurolactam (polyamide 12) and segmented polyalurolactam with different content of soft segments are interesting engineering thermoplastic materials having a broad spectrum of properties. The reason for this broad spectrum are the phase structure and the special interactions between the components at the phase boundaries ...
G. Goldbach +3 more
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Engineering Fracture Mechanics, 2018
Abstract The influence of the orientation and of the temperature on the mechanical properties of the polyamide 12 (PA12) and the polyamide 12 reinforced with glass beads processed via Selective Laser Sintering was analyzed. Tensile and fracture tests were performed at −50 °C, 23 °C and 50 °C with applied load perpendicular and parallel to the layered
A.J. Cano, A. Salazar, J. Rodríguez
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Abstract The influence of the orientation and of the temperature on the mechanical properties of the polyamide 12 (PA12) and the polyamide 12 reinforced with glass beads processed via Selective Laser Sintering was analyzed. Tensile and fracture tests were performed at −50 °C, 23 °C and 50 °C with applied load perpendicular and parallel to the layered
A.J. Cano, A. Salazar, J. Rodríguez
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Colorometric study of polyamide-12 powder aging
Industrial laboratory. Diagnostics of materials, 2020The key point of 3D printing by selective laser sintering is the necessity of complete filling of the working chamber of the printer with a powder material. Since the powder is not completely consumed during the printing process, 25 – 30 wt.% of secondary (unused in the previous cycle) power is added to the primary material in each cycle.
N. Ya. Mokshina +2 more
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Orientation of the lamellar crystals in polyamide 12
Polymer, 1993Three types of oriented samples of polyamide 12 have been investigated by electron microscopy, and small- and wide-angle X-ray diffraction: (a) sedimented mats of single crystals obtained by filtration from dilute solution; (b) melt crystallized samples oriented by unidirectional rolling and; (c) samples obtained by extrusion just below their melting ...
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Fabrication of new antifungal polyamide-12 material
Polymer International, 2012Water-resistant polymeric biocide poly(hexamethylene guanidine) dodecylbenzenesulfonate (PHMG-DBS) was synthesized by anion metathesis between poly(hexamethylene guanidine) hydrochloride and sodium dodecylbenzenesulfonate and subsequently characterized using elemental analysis, Raman spectroscopy and thermogravimetric analysis.
Sergiy Rogalskyy +3 more
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Experimental Study on Laser Plasticizing Polyamide 12
Advanced Materials Research, 2012Considering the efficiency and microscale requirement of melting polymer in micro-injection process, we present an experimental analysis of the CO2 laser irradiating Polyamide 12 (PA12) based on the photo-thermal effect of laser-materials interaction. The orthogonal experiments of laser plasticizing were designed by Taguchi method of Minitab software ...
Wen Sheng Tan +3 more
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Crystalline organization and toughening: example of polyamide-12
Polymer, 2005Improving the impact resistance of plastics is a key to many applications. Today, dispersing rubber and inorganic particles into semicrystalline polymers is widely used to increase their impact strength without greatly altering other interesting properties such as elastic modulus or chemical resistance.
Corté, Laurent +2 more
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Viskositäts‐molekulargewichts‐beziehung für polyamid‐12
Die Makromolekulare Chemie, 1977AbstractLight‐scattering and viscosity measurements were performed on dilute solutions of polyamide‐12 in 1,1,1,3,3,3‐hexafluoro‐2‐propanol at 25°C. The [η]‐M̄w relationship was determined to be [η]=8,43·10−4·M̄w0,68 dl g−1.
Reinhart Hammel, Christian Gerth
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Optical properties of laser sintered polyamide 12
Rapid Prototyping Journal, 2015Purpose – The purpose of this paper is to report selected optical properties of laser sintered polyamide 12 blank plates under different monochromatic and white light conditions and to apply these properties in production of laser sintered lithophanes. Design/methodology/approach
Mengqi Yuan, David L. Bourell
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On the Failure Assessment Diagram methodology in polyamide 12
2023For the first time, the Failure Assessment Diagrams of Polyamide 12, PA12, processed via a conventional technique as injection moulding, IM, and an additive manufacturing technique as Selective Laser Sintering, SLS, were determined via Finite Element Analysis (FEA) using a stress–strain equation more appropriate to describe the mechanical behaviour of ...
Martínez, Mario +2 more
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