Scientific Program

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Virtual poster session

Formation of monodisperse surfactant foams

Wednesday (07.10.2020)
19:16 - 19:19 Room 1
Part of:
Line-Up:
18:40 Virtual poster session Development of CFRP - hybrid foam composites for improved light-weight design of electric vehicles 1 Joachim Baumeister
18:43 Virtual poster session Study of the thermal conductivity of powdered microcellular polymers based on PMMA 1 Ph.D. Ismael Sánchez
18:46 Virtual poster session Manufacturing of functional aluminium matrix syntactic foams 1 Alexandra Kemény
18:49 Virtual poster session Manufacturing and comparison of AlSi12 matrix unimodal and bimodal syntactic metal foams 1 Borbála Leveles
18:52 Virtual poster session The effect of elastomer viscosity in pp/poe foams produced by core-back injection moulding over impact properties 1 Ph.D. Santiago Muñoz Pascual
18:55 Virtual poster session Modelling of the mechanisms of heat transfer in glass foams at different temperatures 1 Paula Cimavilla-Román
18:58 Virtual poster session Thermal conductivity of polyisocyanurate foams (PIR) produced using hydrofluoroolefins (HFOs) as blowing agents 1 Ph.D. Patricia Torres
19:01 Virtual poster session Multiscale modeling of biopolymer aerogels 1 Dr.-Ing. Ameya Rege
19:04 Virtual poster session On the way to mass production of unit-cell based auxetic materials 1 Angela Schwarz
19:07 Virtual poster session Wavy knits – enabling the production of auxetic materials 1 Angela Schwarz
19:10 Virtual poster session Influence of Sample Size on Dynamic Compression of Metal Syntactic Foams 1 Nima Movahedi
19:13 Virtual poster session Synthesis of new non-isocyanate polyurethane foams based on cyclic triscarbonates and diamines 1 Ph.D. Mercedes Santiago-Calvo
19:16 Virtual poster session Formation of monodisperse surfactant foams 1 Prof. Dr. Rumen Krastev
19:19 Virtual poster session Analysis of a AlMg2.5 matrix syntactic foam produced via thixoinfiltration of loosely packed and micro structured recycled balloons 1 João Paulo Paschoal
19:22 Virtual poster session In-situ observation of combustion foaming process for synthesizing porous Al3Ti by X-ray radioscopy 1 Takamasa Inukai
19:25 Virtual poster session Characterization of 3D printed PHBV+BG scaffolds for bone regeneration 1 Prof. Dr. Elida B. Hermida
19:28 Virtual poster session Rheology of a hydrogel-ink, printing fidelity and elastic behavior of 3D-printed scaffolds 1 Prof. Dr. Elida B. Hermida
19:31 Virtual poster session Keratinocytes hacat proliferation on 3D-printed chitosan-collagen scaffolds 1 Prof. Dr. Elida B. Hermida
19:34 Virtual poster session The microhardness and microstructure studies on the sintered open-cell nickel foam 0 Faeze Barzegar
19:37 Virtual poster session Characterization of porous titanium implants produced by 3D printer technique 0 Dr. Akram Salehi
19:40 Virtual poster session Adapting polymer derived ceramic membranes for emulsification process 1 Natália Cristina Fontão
19:43 Virtual poster session Poster discussion in video chat rooms 0
Session Chair


Session V.1: Session 1
Belongs to:
General Topic V: Virtual poster session


Foam is a dispersion of gas usually in liquid. It consists of gas bubbles that are separated from each other by thin lamellas. The structure of aqueous foams can be controlled in a targeted manner via the individual foam films via their stability and permeability. In the case of the liquid foams used to form polymer foams, their role is important. The stability of the individual films regulates the short-term stability of the foams. The gas permeability between the bubbles is important for the long-term stability of the liquid and the polymer foams.

The performed studies are part of the InSeL project – “Innovative Schaumstrukturen für effizienter Leichtbau”. One aim of the project is to prepre well defined liquid foams. These foams can be polymerised by selection of suitable mixtures of oligomers. The polymerised polymer solid foams are used as well defined templates for production of metal foams.

We measured the stability of individual foam films (lamellas) and their gas permeability. Nonionic and anionic microbiologically produced glycolipids are used as surfactants. Important questions for the choice of materials are the product purity and the content of functional groups in the hydrophilic and hydrophobic molecular parts.

With the help of a “Dynamic Foam Analyzer”, 3D foams were analysed and the results were compared with studies of single foam lamellae. A procedure for preliminary sorting of the suitability of the surfactants will be presented.

 

Speaker:
Prof. Dr. Rumen Krastev
Reutlingen University
Additional Authors:
  • Anastasia Binder
    NMI Natural and Medical Sciences Institute at the University of Tübingen
  • Cuifeng Zhao
    Reutlingen University
  • Rebecca Hollenbach
    Karlsruhe Institute of Technology
  • Dr. Xin Xiong
    NMI Natural and Medical Sciences Institute at the University of Tübingen
  • Prof. Dr. Christoph Syldatk
    Karlsruhe Institute of Technology