Entwicklung und Anwendung von Polymer … · Technologische Komplexität erfassen und beherrschen...

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Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ. 24.03.2005 1 Ihr Partner für Projekte in der chemischen und pharmazeutischen Industrie Technologische Komplexität erfassen und beherrschen. In te rdiszi pli när. In te gral . Inno vativ. Entwicklung und Anwendung von Polymer-Nanokompositmaterialien Surfaces and Interfaces - Engineering at the Nanoscale GVC/DECHEMA, Frankfurt, 09. März 2005 Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005 -03-09 Entwicklung und Anwendung von Poly mer -Nanokompositmater ialien Dr. Christoph Schild, Bayer Technology Services Nanotechnologie bei Bayer Technology Services Einführung Technologieplattform Beispiele zu F&E-Aktivitäten im Gebiet der Nanokomposite bei Bayer Carbon Nanotubes Carbosilan-Vernetzer Ausgewählte Polymer- Nanokompositmaterialien von Bayer MaterialScience Dispercoll ® S Bayblend ® Gliederung

Transcript of Entwicklung und Anwendung von Polymer … · Technologische Komplexität erfassen und beherrschen...

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

1

Ihr Partner fürProjekte in derchemischen undpharmazeutischenIndustrie

Technologische Komplexität erfassen und beherrschen. In terdisziplinär. In tegral . Innovativ.

Entwicklung und Anwendungvon Polymer-Nanokompositmaterialien

Surfaces and Interfaces -Engineering at the NanoscaleGVC/DECHEMA, Frankfurt, 09. März 2005

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

� Nanotechnologie bei Bayer Technology Services� Einführung� Technologieplattform

� Beispiele zu F&E-Aktivitäten im Gebiet der Nanokomposite bei Bayer� Carbon Nanotubes� Carbosilan-Vernetzer

� Ausgewählte Polymer-Nanokompositmaterialien von Bayer MaterialScience� Dispercoll® S� Bayblend®

Gliederung

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

2

Strategische Management-Holding

D04

03A

Corporate CenterKonzernvorstandKonzernvorstand

Bayer AG

Holding

ServicegebieteArbeitsgebiete

Bayer BusinessBayer BusinessServicesServices

Bayer Technology Services

BayerBayer Industry Industry ServicesServices

BayerBayer HealthCareHealthCare

BayerBayer CropScienceCropScience

1 Vorstand und Aufsichtsrat der Bayer AGhaben beschlossen, die Chemieaktiv itäten(mit Ausnahme von Wolff Walsrode und H.C. Starck) sowie Teile des Polymer-geschäfts bis Anfang 2005 unter einem gemeinsamen Dach und unter dem Namen Lanxess an die Börse zu bringen.

BayerBayer MaterialScienceMaterialScience

11

Stand: 30.04.2004

BayerBayer ChemicalsChemicals 11

Lanxess Lanxess 11

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Bayer innovation fields: Science for a better life

HealthCare

MaterialScience

CropScience

Industrialbiotechnology /nutrition

Innovative drugs

New energies

Intelligentmaterials

Medical technology

Functional surfaces(e.g. nano-applications)

Nucleic acid diagnostics /personalized medicine

Therapeuticproteins

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Nanotechnology areas at Bayer: Science for a better Life

Functionalized coatings and surfaces

Nanoelectronics Nanobiotechnology

e.g. Nanophosphorsfor diagnostics

DNA

~ 7 nm

e.g. Surface-modified plastics:scratch resistance,UV protection,self-cleaningsurfaces, etc.

Nanoparticles/nanoadditives/nanocomposites

100 nm

Nanoencapsulation/Drug delivery

e.g. Nanostructured surfaces for tantalumcapacitor materials

200 nm

e.g. Bayblend FR with nano additives toimprove flame retardancy

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Bayer Technology Services

ProcessManagementTechnology

In silico-Technology

ProcessSynthesis

ProductDesign

Nano-technology

ProcessingSynthesis

Biotechnology

Catalysis

Nano-technology

BTS Technology platforms

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

BTS Nanotechnology platformInterdisciplinary Technology for Material Science and Life Science

•Precipitation,crystallization,pyrolysis

•Scale-up, technical process

Synthesis

•(Re-)dispersion•Deagglomeration•Phase transfer•Drying•Separation•Purification

Recovery andpurification

•Colloidal and chemicalstabilization

•Compounding•Dispersing•Characterization

Modificationand processing

•Bionanotechno-logy (biochips, medical diagnosticassays)

•Nanocomposites

Applicationsdevelopment

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

e.g. on the basis of carbon nanotubes:hybrids with outstanding

mechanical, electrical andphysico-chemical properties

200nm93390 : 1 B028202RE109

200 nm

Development of a processfor the inexpensive manufacture

of carbon nanotubesfor mass applications

New developments: nanocompositesMaterial Science: Polymer / Nanoparticle Composites

Componentsfor electrostatic

coating

Fiber-reinforced components

Tires with lowroll resistance

Supercapacitors,electrodes for high-

performance batteries

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Low-Cost Production of Multi-Walled CarbonNanotubes (MWNT)

1µm5000 0 : 1

4 µµµµm

BTS

20 nm

� Multi-Walled Carbon Nanotubes (MWCNT), diameter 5-50nm, mean diameter approx. 15-20 nm

�compared to ideal SWNT higher number of defectsbut higher aspect ratio and easier processing

�already employed in polymer composite materials,mainly for enhancing the conductivity

� functionalization possible

� Main restraints for broad commercialization�pricing and large scale availabity�quality and reproducibility

� Development of a process for large scale CNT-production and polymer processing

BTS

20 nm25 nm

BTS

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Bayer process development for CNT synthesisand polymers processing baytubes

B 0 96 50 1 RE 1 01

catalyst

H2, inert gas,small amounts ofhydrocarbons

agglomerates of CNT(> 98% C-purity)

• melt impregnation• in situ polymerization• impregnation in solution

Hel lf el dabbi l dung

• high purification• disentangling• surface modification and chemical functionalization

optional

highly efficientprocess for MWCNT

production

highly efficientprocess for MWCNT

production

hydrocarbons,inert gas

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

CNT Processing in various polymers

0,01 wt.-% CNT

200nm

200000 : 1

20 0 nm20 0 nm

Dispersion• in-situ polymerization• melt impregnation

• impregnation in solution

Complete dispersion ofMWNTs from their initialagglomerates achievedvia intense mixing in e.g.a twin-screw extruder

0,05 wt.-% CNT

CNT in different polymers

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Carbosilane cross-linkers for coating applications

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

� tetraalkoxysilanes for inorganic networks

Commercial (organo-) silanes I

SiOMe

OMe

MeOMeO

Tetramethoxysilane Tetraethoxysilane

SiOEt

OEt

EtOEtO

- high cross-linking density- high weight loss (~ 72 %)- complete condensation > 500 °C- only applicable for thin layers < 1 µm

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

� non-functionalized organosilanes for organicallymodified inorganic networks

- reduced cross-l inking density- reduced weight loss- preparation of thick layers possible

SiCH3

OMe

MeOMeO Si

OMe

MeOMeO

Methyltrimethoxysilane Octyltrimethoxysilane

Si

OMe

MeOMeO

Phenyltrimethoxysilane

Commercial (organo-) silanes II

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

� functional organosilanes for organic-inorganic networks

Si

OMe

MeOMeO

NH2 Si

OMe

MeOMeO

SH Si

OMe

MeOMeO

NCO

Si

OMe

MeOMeO

O O Si

OMe

MeOMeO

O

O

3-Amino . . . 3-Mercapto . . . (3-Isocyanatopropyl-)Trimethoxysilane

(3-Glycidyloxypropyl-)Trimethoxysilane (3-Methacryloxypropyl-)Trimethoxysilane

Commercial (organo-) silanes III

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

requirements for new sol-gel precusor molecules

• flexible segments for modifying the inorganic network➢ organic, non uv-absorbing groups

but: simultaneously hard segments➢ Si-O-Si precondensed groups➢ high functionality (high amount of Si-O-Si forming groups)

• commercially available raw materials for production

Carbosilane cross-linkers

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

New polyfunctional sol-gel precursors

O SiO

SiOS i

OSi

SiSi

SiSi

CH3

CH3

CH3

H3 C

H3C

H3 C

H3C

H3C

O EtEtO OEt

O Et

O Et

O EtO Et

EtO

O SiO

S iOSi

OSi

SiS i

S iSi

CH3

CH3

CH3

H3C

H3 C

H3 C

H3 C

H3 C

OH O H

OHOH

CH3CH3

CH3

CH3

„D4-Diethoxide“ „D4-Silanol“

Carbosilane cross-linkers

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

O SiO

SiOSi

OSi

SiS i

S iSi

CH3

CH3

CH3

H3C

H3C

H3C

H3C

H3C

OEtEtO O Et

OEt

OEtO Et

EtO

O

O SiO

SiOSi

OSi

SiSi

SiSi

CH3

CH3

CH3

H3C

H3C

H3C

H3C

O EtO Et

O Et

O EtO Et

EtO

CH3 O

O SiO

SiOSi

O

Si

SiS i

S iSi

CH3

CH3

CH3

H3C

H3C

H3C

H3C

OEtO Et

O Et

OEt

OEtO Et

EtO

CH3

n

� chemically integrated organic group,� inorganic cross-linking mechanism,� photochemically stable, no hazardous material

Carbosilane cross-linkers

Condensation product from sol-gel precursors

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

• novel uv-stable sol-gel precursors could be synthesized• coatings based on those novel precursors led to

➢ excellent weathering stability➢ high scratch resistancy➢ highly improved solvent and acid resistancy

• potential applications are seen as➢ automotive clear coats➢ hard coats for plastics➢ anti-graffiti coatings➢ biocide free fouling release coatings

Carbosilane cross-linkers - summary

O SiO

SiOSi

O

Si

Si

Si

Si

Si

M e M e

M eM e

M e

M e

M e

M e

OEtEt O

OEtO Et

OEtEt O

O EtEtO

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Polychloroprene dispersions with nanoparticle silica sol

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Adhesive performace similar to solvent-borneadhesives

How can the 1K-properties be further improved ?Development of the Dispercoll® S product linefor compounding with Dispercoll® C

Polychloroprene (CR) dispersionsRapidly growing in areas such as• foam to foam bonding• countertop lamination• insole bonding

Dispercoll® C + Dispercoll® S

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Modification of adhesive raw materials with nanoparticles

Technical requirements for adhesives� easier processibility� better adhesion� options for further formulations� high bonding strength

New application fields for adhesives� replacement of solvent based systems� new chances for CR- and PU-based systems

Health, safety, environment� working place hygiene� environment protection� safety for the user

Modification withnanoscale SiO2

Focus on solvent free technologies

Dispercoll® C + Dispercoll® S

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Production of amorphous nanoscaled silicaMonomer and polymer silicic acid after kation exchange of waterglass

nucleation

5 nm

10 nm

30 nm3d - network Si

OH

OH

O O

sol

particle increase,alkalineparticle condensation

gelation

particle conditioning

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

2SiO

Si

Si

Si

O

O

Na

Na Na

NaOH

OH

OH+

++

( - ) ( - )

( - ) ( - )

+nanoparticle silica sol

� amorphous silica withsurface silanol groups

� alkaline stabilized

� particle size 5-100 nm

Dispercoll® S

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Disp ercollDisp ercoll ®® SS

XP 4020XP 4020

Disp ercollDisp ercoll ®® SS

XP 3030XP 3030

Disp ercollDisp ercoll ®® SS

XP 5005XP 5005

Disp ercollDisp ercoll ®® SS

XP 4510XP 4510Dispercoll® S range of nano-thickeners - available grades

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

250000 : 1

100 nm

Dispercoll S

CR latex particle

TEM micrograph of a Dispercoll® C particle / Dispercoll® S particle dispersion

Dispercoll® C + Dispercoll® S

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Recipe solids (%) pbwDispercoll C 55 100antioxidant 20 2Dispercoll S 50 30metal oxide dispersion 50 4

Dispercoll® S acts as a shear thinning thickener

100

1000

10000

100000

0 100 200 300 400 500Shear rate [1/s]

Visc

osity

[mP

as]

Dispercoll® C + Dispercoll® SRheology

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Dispercoll® S improves the initial peel strength

0

0,2

0,4

0,6

0,8

1

1,2

1,4

0 2 4 6 8 10

Open time after application of adhesive [min.]

[N/m

m]

with resin 1*with resin 2 *with Dispercoll® S

(drying at RT, pressure 4 bar/10 s)

*Terpene-phenole resin

adhesive based onDispercoll® C

Dispercoll C® + Dispercoll® SInitial peel strength (wet bonding) on leather

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Dispercoll® S improves the softening point of Dispercoll® C formulations

66

107

83

0

20

40

60

80

100

120

Dispercoll Ssmaller particles

resin*(Standard)

Tem

per

atu

re [

°C]

*Terpene-phenole resin

Dispercoll® C + Dispercoll® SSoftening point (SBR rubber)

Dispercoll Slarger particles

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Dispercoll® C

OH-functionality: 1-2%

Dispercoll® S

Network

S iO

S iO

S iO

S i

O H O H O HO H

Nanoparticle silica sol

OHCl Cl

Dispercoll® C + Dispercoll® SImprovement of softening point with Dispercoll® C

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Dispercoll® C + Dispercoll® S

Summary

Silica sol improves CR dispersion adhesives• rheology: viscosity regulation• allows short production cycles due to higher initial wet-bonding strength• higher heat resistance and thermal stability of the bonding

(patented by Bayer MaterialScience)

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Bayblend® FR: Eco sets the Market Trend

Unique Market Position: Bayblend® FR combines very safe flameretardancy, excellent mechanical properties and compliancewith the most important eco labels

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Bayblend® FR is made of ...Transmission Electron Micrograph, TEM (sample stained with OsO4)

2µm

Polycarbonate� Heat distortion

temperature� Ductili ty� Inherent flame

resistanceAdditivesAdditives� Teflon for

antidripping� Thermal

stabilizerSAN*SAN*� Good flowability*) Styrene / AcryloNitrile

Copolymer

� Toughness� Chemical

resistance

*) Acrylonitrile ButadieneStyrene Graft copolymer

ABS*ABS*

Organophosphate� Flame retardancy� Flowability

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Nanoparticles in Bayblend® FR

500nm

Transmission Electron Micrograph (TEM) (sample not stained)

Specific inorganic nanoparticlesare highly dispersable and help toimprove...

Specific inorganic nanoparticlesare highly dispersable and help toimprove...

Polycarbonate

ABSABS

Nanoparticles

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

... flame retardancy

Nanoparticles helpNanoparticles help to to catalyze char catalyze char formationformation at at the surface the surface

Decomposition ZoneDecomposition Zone

Char formation

Oxygen

BurningGases

Heat

Smoke

Thermal Feedback

PC-ABSPC-ABS // PhosphatePhosphate // nanoparticlesnanoparticles

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Typical desired characteristics of polymernanocomposites

• mechanical properties• scratch resistance• resistance towards chemicals• flame retardancy• hydrophobicity / hydrophilicity• gas barrier properties / permeation• UV-/ IR absorption properties• ......the original polymer properties, e.g. transparency, should notbe affected by the additional component(s)

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Preparation of polymer nanocomposites:Engineering at the nanoscale

Producer or supplier ofnanoparticles

agglomeratesas powders,eventuallysurfacemodified

well dispersednanoparticles assuspension insolvent,eventuallysurface modified

Polymer producer

Polymer synthesisExpertise incompoundingSystem expertise andmarket knowledge(polymer)

���� Adaptation of particle surfaces, general questions���� Shielding of adhesion forces?���� Deagglomeration of nanoparticles?���� Physical compatibili ty with polymer?���� Bonding behavior with polymer matrix?���� How to suppress reactivity or catalytic activity (including photocatalytic behavior in final composite) of particles towards polymer melt?���� How to avoid agglomeration during modification?���� How to obtain a thermally stable surface modification?

Synthesis Application

Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

• Automotive industry• Films• UV- protection• Displays

End product:

• Lacquers• Emulsions• Dispersions• Plastics

• Foils•

Processing:

NANO-MATERIALS

Synthesis:

Summary and ConclusionIncreasing interest in nanotechnology for new and better products withhigher value; polymer nanocomposites important class of materials

Value-added chain of nanomaterials:

• Chemistry• Physics• Analytics• Materials Science• Biology• Computer Science

Know-how:

Possible strategies: i) building up organic/inorganic networks,ii) combining different networks, iii) combining particles and polymers

Technologische Komplexität erfassen und beherrschen Interdisziplinär. Integral. Innovativ.

24.03.2005

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Surfaces and Interfaces - Engineering at the Nanoscale; Frankfurt, 2005-03-09Entwicklung und Anwendung von Polymer-Nanokompositmater ialienDr. Christoph Schild, Bayer Technology Services

Acknowledgements

Dr. Matthias VoetzDr. Arno NennemannDr. Sigurd Buchholz

Dr. Herbert BlankenheimDr. Steffen HofackerDr. Harald PielartzikDr. Martin VollmerDr. Eckard Wenz

Ihr Partner fürProjekte in derchemischen undpharmazeutischenIndustrie

Technologische Komplexität erfassen und beherrschen. Interdisziplinär. Integral. Innovativ.

[email protected]

Kontakt:Dr. Christoph SchildBayer Technology Services GmbHPhysics and Chemistry of InterfacesLeverkusen, Gebäude E 41Tel.: LEV 54010FAX: LEV 50698E-Mail: [email protected]