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, 2020 Laser sintering of polymers is widely used for the production of individual products and small-batch series. However, the qualification of laser-sintered polymeric components for new application fields, e.g. in the food and packaging industry, is still limited due to missing knowledge on physicochemical material properties.
Anna Liebrich +3 more
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Thermal Conductivity Measurements of Polyamide 12 [PDF]
, 2011 An important component in understanding the laser sintering process is knowledge of the thermal properties of the processed material. Thermal conductivity measurements of pure polyamide 12 were conducted based on transient plane source technology using a Hot Disk® TPS500 conductivity measurement device.
Yuan, Mengqi +2 more
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Oxyluminescence of polyamide 12
Polymer Degradation and Stability, 1994Abstract The oxyluminescence of unstabilised samples of polyamide 12 was studied in the temperature range 80–250°C. The chemiluminescence intensity was first recorded at constant oxygen pressure and temperature. The kinetic curves reveal the existence of two kinetic stages.
A Tcharkhtchi +3 more
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Fusion bonding of polyamide 12
Polymer Engineering & Science, 2001AbstractThe strength of fusion bonds between polyamide 12 plaques has been investigated as a function of processing conditions, using the double cantilever beam geometry to measure the mode I critical strain energy release rate, Gc. Bonding was carried out using an instrumented press, which allowed systematic variation of the bonding time, the holding ...
Zanetto, J.-E. +3 more
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The crystallization kinetics of polyamide-12
Colloid & Polymer Science, 2001The crystallization kinetics of polyamide-12 has been investigated using a combination of differential scanning calorimetry (DSC) and hot-stage optical microscopy. The DSC data for isothermal crystallization were consistent with a simple two-parameter Avrami model for isothermal crystallization and optical measurements of the spherulite growth rates ...
Plummer, C. J. G. +3 more
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Thermoplastic Elastomer Based on Epoxidized Natural Rubber/Polyamide-12 and Co-Polyamide-12 Blends
Advanced Materials Research, 2012Thermoplastic elastomers based on blending of epoxidized natural rubber with 30 mol% epoxide (ENR-30) with polyamide-12 (PA-12) (i.e., ENR-30/PA-12) and blending of ENR-30 with co-polyamide-12 (ENR-30/CO-PA-12) were prepared by dynamic vulcanization technique. It was found that the dynamically cured ENR-30/PA-12 blends exhibited higher tensile strength,
Rawviyanee Romin +2 more
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Rheological characterization of filled polyamide 11 and polyamide 12 solutions in polyols
Journal of Applied Polymer Science, 2019ABSTRACTA thorough understanding of the rheological properties of real‐world, formulated polymer melts and solutions is important to fabricate articles via typical melt processing techniques. Polyamides have been studied extensively in the area of water purification applications.
Kshitish A. Patankar +2 more
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Cyclische monomere und oligomere in polyamid‐11 und polyamid‐12
Die Angewandte Makromolekulare Chemie, 1973AbstractDer Gleichgewichtsgehalt an cyclischen Monomeren in hydrolytisch Polymerisiertem Polyamid‐11 und Polyamid‐12 bei 280°C wurde aus den Cyclisierungs‐konstanten nach STOLL und ROUVé sowie nach MORAWETZ und GOODMAN, der Gehalt an cyclischen Dimeren und Trimeren nach den statistisch abgeleiteten Beziehungen von JACOBSON und STOCKMAYER berechnet.Die ...
Von R. Feldmann, R. Feinauer
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Generalization of the static mechanical properties of plasticized polyamide-12 and polyamide-6
Polymer Science U.S.S.R., 1989Abstract Generalization of the static mechanical properties of plasticized PA-12 andthe method of reduced variables over a wide temperature range has yielded a discrete series of values of the effective activation energy corresponding to the main relaxation processes. The character of change in effective activation energy with strain is regarded as a
J.V. Ivankina +2 more
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