De la surface liquide aux surfaces

solides : stratégie de recherche sur

la structure et les propriétés des

matériaux polymères alvéolaires

2

CONTROLLING SOLID FOAM PROPERTIES

PROPERTIES OF

SOLID FOAM

MATERIAL

OF WHICH THE

FOAM IS MADE

FOAM DENSITY

& MATERIAL

DISTRIBUTION

CELL

CONNECTIVITY(OPEN- OR

CLOSED-CELL FOAM)

CELL

TOPOLOGY &

GEOMETRY

CONTROLLED IN THE LIQUID STATE (and during solidification)

BRIDGING LIQUID AND SOLID TWO-PHASE MATERIALS

3

LIQUID TWO-PHASE TEMPLATE

SOLIDTWO-PHASE MATERIAL

SOLIDIFICATION

TEMPLATE CONTROL STRUCTURE/PROPERTY RELATIONS

FEEDBACK

gas/liquid; liquid/liquid gas/solid; liquid/solid; solid/solid

SC

ALE

: 0

.1 –

1 m

m

FOCUS: POLYMER-BASED MATERIALS

15 c

m

LINKS BETWEEN STRUCTURE, MATTER AND PROPERTIES

EXAMPLES OF FOAM-RELATED ACTIVITIES

Elastic rebound depends on

material and µstructure

IN-SITU TOMOGRAPHY

EXAMPLES OF FOAM-RELATED ACTIVITIES

5

+ FUTURE TOMOGRAPH AT ICSPLATFORM

FOAM FORMATION

Physical AND chemical foaming(techniques and mechanisms)

Experiments AND simulation

EXAMPLES OF FOAM-RELATED ACTIVITIES

61

mm

FOAM STABILITY – LINKING THREE LENGTH SCALES

EXAMPLES OF FOAM-RELATED ACTIVITIES

7

+ phospholipids

8

EXAMPLES OF FOAM-RELATED ACTIVITIES

CONTROLLED SURFACE MODIFICATION

Example: (photo)catalysis

9

OUR PHILOSPHY

10

INVOLVED PERMANENT RESEARCHERS & ENG.

T. RolandFoam mechanics,

tomography

P. KekicheffTomography,

thin films

W. DrenckhanInterfaces, thin films,

foams & emulsions

C. SerraMicrofluidics, Drop &

Emulsion processing

M. BouqueyFormulation, dispersions

& hybrid foams

L. JerryFoams for catalysis

M.-P. KrafftMicrobubbles,

Lipids at Interfaces

F. SchosselerInterfaces,

Nanoemulsions

+ about 15

non-permanent staff

F. BoulmedaisInterfaces

C. GauthierFoam mechanics,

contact creep

H. PelletierHybrid foams

L. Jacomine

D. Favier R. Bollache

M. Brender

INSTRUMENTATION

CHARACTERISATION

11

INDUSTRIAL and ACADEMICS PROJECTS

En discussion: