cellmat.pdf

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Cellular Nanocomposites: a new type of light weight advancedmaterials with improved properties

Dr. Miguel Ángel Rodríguez !rez


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o BACKGROUND ON CELLULAR MATERIALS

o CELLMAT TECHNOLOGIES

o CELLULAR NANOCOMPOSITES: THE CONCEPT

o PRODUCTS DEVELOPED UNDER THIS CONCEPT

o IMPROVED STRUCTURAL FOAMS: ANICELL TECHNOLOGY.o IMPROVED THERMAL INSULATORS

o SUMMARY AND CONCLUSIONS

o CONTACT


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Cellular Materials (also )nown as *"+M,- are two phases materials in whicha continuous gas phase has een dispersed in a solid phase.

C'%%#%+R M+$'R&+%,: D'*&N&$&"N

"pen cell cellular materials

Closed cell cellular materials


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Natural Cellular Materials

Cellular structures in nauture: a) bone b) wood

Natural cellular materials:(a- cor) (- alsa(c- sponge (d- traecular one(e- coral (f- cuttlefish one(g- iris leaf (h- plant stal)

C'%%#%+R M+$'R&+%, +R' R','N$ &N N+$#R'


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C'%%#%+R M+$'R&+%,: +D/+N$+0',+D/+N$+0', "* "%1M'R&C C'%%#%+R M+$'R&+%, (also )nown as "%1M'R*"+M,-

• WEIGHT AND COST REDUCTIONS• REDUCTION OF RAW MATERIAL CONSUMPTION WITH THE SUBSEQUENT

ENVIROMENTAL BENEFITS• POSSIBILITY OF PRODUCING LIGHTWEIGHT MATERIALS WITH HIGH STRENGTH AND

STIFFNESS

• EXCELLENT THERMAL INSULATION• EXCELLENT IMPACT ENERY ABSORPTION• POSIBILITY OF PRODUCING MATERIALS WITH ACOUSTIC ABSORPTION CAPABILITIES


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C'%%#%+R "%1M'R,: $2' M+R3'$

Material $ons in 4566 +verage annual gorwth rate

olyurethane 1,50E0! ",#olystyrene #,$5E0# 1,%

/C $,1&E0# %,#olyolefins 1,15E0# ",&

"tther ",%$E05 %,"

65 7 of the plastic resins used nowadays are used for the production of cellular polymers(48 millions of $ons in 4566-. $his is around 95555 millions of 'uros

+ssuming an average density of 5 )g;m< and 65 mm thic) samples the surface of the material produced in

one year is 9 555 )m4. (6;65 $2' ,#R*+C' "* ,+&N-


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o CONTACT


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&nternational recognized laoratory estalishedin 6??? in the are of cellular materials andioplastics:

•64 scientific papers

•65 patents and several novel technologies

•64 h D thesis

•More than 5 research pro@ects

•,trong collaorations with companies aroundthe world

www.cellmat.es

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CellMat $echnologies offers to its customers several products related with the "$&M&A+$&"N +ND &M%'M'N$+$&"N"* N"/'% R"C',,', +ND M+$'R&+%,.

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o ,pecialized )nowhowo ,pecific wor)ing methodology

o ui)ness and no intereference withproduction process.

o +chievale results in short term periods.o %ow cost industrial trials.o ,caling up at customerEs facilities.o ,pecific training for the involved staff.o 2igh degree of commitment with our

customers.

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o CONTACT


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?CELLULAR NANOCOMPOSITES@

olymer containing nanofillers Cellular structure

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M#%$&*#N$&"N+% R"%' "* N+N"+R$&C%', &N C'%%#%+R M+$'R&+%,

&mproving

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performance

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retardancy

Modifying

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morphology

'**'C$, &N $2' ,"%&D M+$R&F

&mproving=arrier

properties

Nucleatingagents for the

cells

Modificationof olymer

rheology

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Cellular material properties

Cellular structure roperties of the material in the

cell walls+ct as nucleating

agents for the

cells

Modification

of olymer

rheology

Modifying

polymer

morphology

&mproving

$hermal

staility

&mproving

Mechanical

performance

&mproving

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properties&mproving

*lame

retardancy

,&N'R0'$&C, '**'C$, ,2"#%D =' 'F'C$'D

='$$'R &MR"/'M'N$, &N $2' R"'R$&', "* *"+M, $2+N &N ,"%&D, "* $2' ,+M'C"M",&$&"N

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S-3*) '-(8 ( )9(-6< 98( *- 8((8()6/8 6/ '/9)( *76 3(*7 )/;'/8*6(8

CELLULAR

CORESKINS

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SKINS CORE

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N+NC"R'

POLYPROPILENE BASEDNANOCOMPOSITE FOAMS

L)2 /+ /;/7(-(*6<

B8 W// PVC +/;8

L/3 3/ *=**6<H*7 '*)(8

W< P/


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6 + novel production processcalled““““&mproved Compression Moulding””””

"nestep production method.Common industrial eGuipment: ressesressures etween and H5 ars.

$emperatures around 455IC.,hort cycle times.

4 *ormulations ased on non crosslin)ed polymermatriJ:

• T(;/'86*) '/


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PP 3*6/96 --/'6)*(8(88 86=( +/;

PP 3*6 --/'6*)( 8;/( 86=( +/;

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o +niCell CC (*=*68 8*;* / ((- *7( ;()-*) '(+/;-)( 6- )/88*-2( PVC - *7* PU +/;8.o +niCell "C '/9)68 '(8(-68 89'(*/ ;()-*) '/'(6*(8 =/6 *- )/;'(88*/- - 8( 6- PU =8(

*7* +/;8. ICM 6()-//7< '/88*=**6*(8 )/;=*-*-7 *7 (7(( /+ )( *-6()/--()6*/- - ()((-6;()-*) '(+/;-)(.

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A-*C( )/(8 )- =( 98( *- strategic sectors 89) 8:

o $hermal insulationo +coustic insulation

o *ire protection

*illing material for lades inwind turines

Core of sandwich structuresincluded in the hull of yachts

Core of sandwich panels foraircraft interiors

Core of sandwich panels for traininteriors floors doors etc.

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o CONTACT


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"ne of the main applications of cellular materials is the thermal insulation(uildings pipes fridges...- with a high social environmental and economic impact.

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Commercial buildings

Transport

Manufactur ing Industry

Households (Residential)

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%#."Commercial buildings

Transport

Manufac turing Industry

Households (Residential)-others

Households (Residential)-climatization

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XPS (69( '/


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&n , *"+M, nucleating agents are used during production

Talc: Conventional nucleating agent in foamed extruded sheets

(3 microns in size)

Potential nucleation density: 1010 cells/m3

Alternative: Nanoclays with a much lower size.

Potential Nucleation density: 1013 cells/cm3

COMPARING THE STRUCTURE AND PROPERTIES OF PS FOAMSPRODUCED USING TALC AND SPECIFIC TYPE OF NANOCLAYS


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Talc 1% 0.25 wt.% Clays 0.5 wt.% clays

1 wt.% clays 3 wt.% clays 5 wt.% clays

&MR"/'D $2'RM+% &N,#%+$"R,


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Main characteristics of samples containing different contentsof clays.

Sample Cell size(µm)

Standarddeviation (µm)

Cell density(cells/cm3)

Talc 1% 73.01 27.2 1.75·108

clays 0.25 % 29.18 13.4 1.36·109

clays 0.5 % 30.35 17.3 1.30· 109

clays 1 % 30.56 14.4 1.35·109

clays 3% 18.37 6.6 1.10·1010

Clays 5% 11.46 3.9 2.56·1010

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S*7-*+*)-6 (9)6*/- /+ )( 8*( (898 6)


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△

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SIGNIFICANT REDUCTION OF THERMAL CONDUCTIVITY AND

STRONG INCREASE OF THE MECHANICAL PROPERTIES.BETTER PERFORMANCE AND POSSIBILITY OF DENSITY

REDUCTION COST REDUCTION

C


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o

CELLULAR NANOCOMPOSITES: THE CONCEPT




o CONTACT


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,#MM+R1 +ND C"NC%#,&"N,

o Cellular polymers or polymer foams are important materials inman made world. $hey are materials with increasing importance inall industries. $hey have the aility to reduce weight and costs

improve the mechanical performance at low weight and contriuteto thermal and acoustic management.

o Nanoparticles can improve significantly the properties of cellular

polymers. ,&N'R01 ='$K''N *"+M&N0 +ND N+N"+R$&C%',.$his novel materials are very close to commercial success in severalmar)et sectors.

o articipating in 'uropean pro@ects is challenging ut an activeparticipation can improve in a very significant eJtend the)nowledge and s)ills of any company and;or research group.


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o

CELLULAR NANOCOMPOSITES: THE CONCEPT




o CONTACT


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