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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Jenkins, Michael
University of Birmingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2024Re-use of polyamide-12 in powder bed fusion and its effect on process-relevant powder characteristics and final part propertiescitations
- 2024The effect of powder re-use on the coalescence behaviour and isothermal crystallisation kinetics of polyamide 12 within powder bed fusioncitations
- 2018Analysis of the failure of a PPS polymer cycling support:citations
- 2017Co2 Assisted blending of poly(lactic acid) and poly(ε-caprolactone)citations
- 2014Production of biodegradable foams using supercritical CO2citations
- 2012A Comparison of the use of FTIR spectroscopy with DSC in the characterisation of melting and crystallisation in polycaprolactonecitations
- 2011Active screen plasma surface modification of polycaprolactone to improve cell attachment.citations
Places of action
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article
Production of biodegradable foams using supercritical CO2
Abstract
A single screw extrusion process in which CO2 is injected into the polymer melt has been utilised to produce low density biodegradable poly(DL‐lactic acid (PDLLA) foams. High pressure differential scanning calorimetry (DSC) is used to observe the melting point depression of crystalline PDLLA 3051D in the presence of CO2. In addition, the effect of temperature (110 to 140°C) and CO2 pressure(50 to 120 bar) on the viscosity of PDLLA 3051D, in the amorphous and crystallineforms, are investigated through the use of a high pressure rheometer. Foams of PDLLA 3051D are produced in a static environment, under a range of conditions, and these data are utilised to extrude PDLLA 3051D into foamed sheets for packaging applications. The density, crystallinity, mechanicalproperties and microstructure of these foams are evaluated using DSC, tensile testing and scanning electron microscopy (SEM).