TPU-based porous heterostructures by combined techniques
نویسندگان
چکیده
Abstract The production of thermoplastic polyurethane-based porous heterostructures combining physical foaming with fused deposition modeling is detailed in this contribution. choice these two techniques lies the possibility creating objects endowed a dual-scale structure at millimeter scale by and microscopic gas foaming. Thermal stability rheological properties neat polymer were studied prior to design suitable processing protocol three different combined are proposed: pressure quench, temperature rise direct 3D foam printing. Foam morphologies evaluated SEM foamed samples characterized thermal mechanical analyses highlight differences among techniques. Samples via quench exhibit highest degree crystallinity uniform cell morphology, also resulting largest stiffness. results presented contribution open up producing complex geometry porosity architecture dual scale.
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ژورنال
عنوان ژورنال: International Polymer Processing
سال: 2022
ISSN: ['0930-777X', '2195-8602']
DOI: https://doi.org/10.1515/ipp-2022-0026