Scientific Program

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Virtual poster session

Study of the thermal conductivity of powdered microcellular polymers based on PMMA

Wednesday (07.10.2020)
18:43 - 18:46 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 2 Faeze Barzegar
19:37 Virtual poster session Characterization of porous titanium implants produced by 3D printer technique 2 Dr. Akram Salehi

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


Cellular polymers are of great technological interest in sectors such as construction and automotive because of their low thermal conductivities, weight and cost. One way to further reduce weight and improve the thermal insulation capability of cellular polymers is pulverization, due to the presence of air between the powder particles. Thus, understanding the thermal conductivity of powdered cellular materials plays an important role in the field of thermal insulation. The irregular particle shapes, particle sizes distribution and densities, among other factors, make the prediction of the effective thermal conductivity still a challenge.

In this work, the thermal conductivity of powdered microcellular polymers is investigated in order to quantify the contribution of the different heat transfer mechanisms. The materials used for this study are microcellular polymers based on polymethylmetacrylate (PMMA) with different densities and cellular structures. These materials were powered and sieved, obtaining different powder size distributions, and the thermal conductivity of the obtained samples was measured. A theoretical model is developed to predict and quantify the thermal conductivity of powdered cellular polymers.

 

Speaker:
Ph.D. Ismael Sánchez
University of Valladolid
Additional Authors:
  • Dr. Victoria Bernardo
    CellMat Technologies S.L
  • Prof. Dr. Miguel Angel Rodríguez Pérez
    University of Valladolid