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Poster

Production of thermoplastic polyurethane foams synthesized with different contents of hard segment and graphene nanoplatelets by the gas dissolution foaming process

Wednesday (24.10.2018)
19:18 - 19:21
Part of:
Line-Up:
- Poster Battery housings for electric vehicles using CFRP and aluminium foam 0 Joachim Baumeister
- Poster Manufacturing and characterization of open-cell stainless steel foams by investment casting 1 Jan Frömert
- Poster Interface formation of Mg2X (X = Si, Sn) in cellular Si infiltrated by Mg(Sn) alloys 1 Alexander M. Matz
- Poster Production of microcellular PMMA using the bead foaming technology 1 Mikel Mugica
- Poster Nanocellular PMMA with tunable cellular structure by changing the rheological behaviour of the polymer matrix. 1 Judith Martín de León
- Poster Production of thermoplastic polyurethane foams synthesized with different contents of hard segment and graphene nanoplatelets by the gas dissolution foaming process 1 Ph.D. Mercedes Santiago-Calvo
- Poster Surface functionalized filters for aluminum melt filtration 1 Dr.-Ing. Claudia Voigt
- Poster Nanocellular polymers based on PMMA/sepiolite nanocomposites: characterization of the mechanical behaviour 1 Victoria Bernardo
- Poster Impact resistant foams based on PP/POE blends 1 Ph.D. Santiago Munoz Pascual
- Poster Crosslinked open cell ethylene butyl acrylate copolymer (EBA) foams: properties and applications 1 Ph.D. Eduardo López
- Poster Influence of molecular weight in the solubility,diffusivity and the subsequent cellular structure of polystyrene foams 1 Ph.D. Alberto Ballesteros
- Poster Crushing strength measurement at reticulated ceramic foams ex situ and in situ CT analysis 1 Dr.-Ing. Claudia Voigt
- Poster Initiation of plateau region during compression test of porous metals with aligned unidirectional pores 1 Tomoya Tamai
- Poster Active meta-materials with adjustable pore size 1 Dr. Reza Hedayati
- Poster Polymeric foams 3D numerical mechanical modelling 1 Stefano Tagliabue
- Poster Characterisation of NiTi cellular materials fabricated by the powder-metallurgy spaceholder technique 1 Dr. Karl Dahm
- Poster Accurate separation of open cell metal foams using remote laser cutting technique 1 Robert Baumann
- Poster Generation of artificial foam structures and evaluation of their thermo-mechanical, flow and filtration characteristics (Poster) 1 Christoph Settgast
- Poster Surface modification of magnesium-based foams by Directed Plasma Nanosynthesis 1 Viviana Marcela Posada Pérez

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Foamed polymers have added value properties as low density, low thermal conductivity and adaptable mechanical properties as a function of relative density and therefore are extensively used in almost all industrial sectors. Recently, the study of foams based on thermoplastic polyurethane (TPU) is growing in importance mainly because this polymer is one of the most elastic thermoplastics. Many studies have been published on the foaming of different polymers by using the so called gas dissolution foaming process. However, there are very few studies that deal with thermoplastic polyurethanes (TPUs) foams produced by this technique [1-5]. TPU foams due to inherent properties of TPU and the widening of properties provided by foaming could be very interesting materials for several applications. For these reasons, we have focused our research on obtaining synthesized TPUs with different characteristics to produce TPU foams with a wide range of properties.

 

In this research, TPUs with different contents of hard segment (HS) from 40 to 80 wt% as well as TPUs nanocomposites with different contents of graphene nanoplatelets (GNP) from 0.25 to 1 wt% have been synthesized using the prepolymer method, Synthesized TPUs have been characterized by gel permeation chromatography (GPC), differential scanning calorimetry (DSC) and dynamic mechanical thermal analysis (DMTA). Moreover, extruded samples have been prepared in order to obtain foams by a one-step gas dissolution foaming process. The influence of HS and also GNP contents on the TPU foaming is herein studied analyzing the density and cellular structure of the resulting foams.

Speaker:
Ph.D. Mercedes Santiago-Calvo
University of Valladolid
Additional Authors:
  • Haneen Naji
    The University of Manchester
  • Victoria Bernardo
    University of Valladolid
  • Judith Martín de León
    University of Valladolid
  • Prof. Alberto Saiani
    The University of Manchester
  • Prof. Dr. Fernando Villafañe
    University of Valladolid
  • Prof. Dr. Miguel Ángel Rodríguez-Pérez
    University of Valladolid