Bioplastic adapted for selective laser sintering
SLS processing standard achieved – Processes to be scaled up for volume business
The customer
Chemnitz University of Technology, Faculty of Mechanical Engineering, Lightweight Structures and Plastics Processing section led by Professor Lothar Kroll. Research area: Biopolymers and Metal Master Composites (led by Dr Rinberg).
The task
Refining and grinding a PHB and PHBV compound with the aim of adapting it for the planned use in SLS.
The result
The result
Purified, additivated, odourless plastic granulate was turned into a ready-to-use bioplastic powder with a precisely adjustable fineness of 45-80 μm in just two trial grindings. The material properties were further optimised (scrapability, tensile strength and impact strength). The SLS processing standard was achieved.
100%
Pure plant-based SLS powder
Cryo-grinding proved to be just the right method. Given the scrape test results, the native PHA powder could not be used at first. However, this all changed in just two steps of compounding and additivation.
90%
Efficient optimisation
The use of additives and bio-stabilisers further improved the processing properties. The material yield of around 90 percent also speaks for the process quality.
achieved!
Scale-up in sight
The processes will be scaled up, subject to demand from the manufacturing industry. The necessary research and development work for volume business is the subject of an R&D project by the partners DG and TUC/MERGE.
Aktuelles von DG
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One Company
Until now, several individual operating companies have offered their own specialised production processes and services under the Dressler Group brand.
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Listen – Care – Evolve
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Dr Jürgen Flesch
Dr Jürgen Flesch joins Dressler Group leadership team as CEO.
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Formnext 2022
For Dressler Group (DG), sustainability is not a trend, it has always been part of our DNA. After all, we are dedicated to the optimal use of resources and raw materials in every process.
