1 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Tailored dispersions of Carbon Nanotubes

energized by LANXESS: Rhenofit® CNT General Introduction

2 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Agenda

Why a dispersion needs to be developed?

Carbon Nanotubes @ Lanxess

Motivation: Carbon Nanotubes (CNTs)

Value Chain

Product group Rhenofit® CNT

Benefits at a glance

3 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Motivation: Carbon Nanotubes

First reported by Iijima et al. in 1991

Graphene like structure with very high aspect ratio

Electrical and thermal conductivity (min. 10 times of copper)

Mechanical strength (100 times stronger than steel at one-sixth the

weight)

But: Drawbacks

Toxicity situation unclear

HARN`s investigation[1,2]

Society awareness for danger

No ready to use material Entanglement of CNT

[1] Donaldson K., Murphy F., Schinwald A., Duffin R., Identifying the pulmonary hazard of high aspect ratio nanoparticles to enable their safety-by-design, Nanomedicine

2011, 6, 143-56.

[2] Krug, H. F. & Wick, P. Nanotoxikologie eine interdisziplinäre Herausforderung, Angewandte Chemie 2011, 123, 1294-1314

Discussion about toxicity situation: Fiona A. Murphy,* et.al., Length-Dependent Retention of Carbon Nanotubes in the Pleural Space of Mice Initiates

Sustained Inflammation and Progressive Fibrosis on the Parietal Pleura, The American Journal of Pathology, 2011, Vol. 178, 2587–2600.

4 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Motivation: Entangled Carbon Nanotubes

5 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Motivation: Entangled Carbon Nanotubes

CNTs are not suitable for industrial applications after production

6 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Agglomerates, no homogenization Single CNTs, no homogenization

Agglomerates, homogenization Single CNTs, homogenization

Challenges

Why a dispersion needs to be developed?

7 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Agglomerates, no homogenization Single CNTs, no homogenization

Agglomerates, homogenization Single CNTs, homogenization

Challenges

Why a dispersion needs to be developed?

8 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Essential development parameters for CNT-dispersions

Basic requirement: For all potential applications we need a dispersion of CNTs

Nanomaterial

Dispersing agent

Degree of exfoliation

2

3

1

Nanomaterial: Type and optimized concentration

Dispersing agent: Ionic/non-ionic and concentration

Degree of exfoliation: Optimized energy level

requirement – application specific

1

2

3

9 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Providing a solution/product for industrial usage of CNTs

Challenges with CNT

During the production process

of CNTs the material

becomes entangled and the

cylindrical tubes create

agglomerates.

Agglomerates prevent the

transfer of the extraordinary

properties of carbon

nanotubes to the application.

An additional step is

necessary to form a

homogeneous mixture of

highly dispersed / stabilized

tubes.

Carbon Nanotubes @ Lanxess

Know How

10 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Value chain

Highly exfoliated and stabilized aqueous CNT dispersions by LANXESS

Final application examples*:

Functional nanocomposites

Batteries

Electronics

Renewable energy

Textiles

Sensors

Thermal conductive liquids

CNT User

FPE** of

tailored

CNT-

dispersions

by LANXESS

CNT

production

from different

suppliers

of tailored carbon nanotube dispersions.

“Formulated Product Engineering”

*Selection of applications **Formulated product engineering

11 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Product group Rhenofit® CNT Highly exfoliated and stabilized Carbon Nanotube dispersions

Rhenofit® CNT-… CNT-Type

Dispersing

agent Matrix

Concentration

active material

[%]

Dry content

[%] Application Property*

2 MW LM I aq 2.0 4.0

Latex, rubber,

Thermoelements,

Concrete

Mechanical strength, electrical and

thermal conductivity

3 SW LM I aq 0.2 0.6 Latex, Coating,

Concrete

Electrical and thermal conductivity,

mechanical strength, color

maintained, transparency in

combination with antistatic

4 SW Polymer aq 0.2 0.6 Energy storage,

Coating

Electrical conductivity (increasing

capacity and longer lifetime)

5 SW LM II aq 0.2 0.7 Coating & Ink, Paints,

Printable Electronics

Electrical conductivity & transparency

in combination with antistatic, color is

not changing

6 SW Polymer aq 0.4 0.8 Energy storage,

Coating

Electrical conductivity (increasing

capacity and longer lifetime)

In case your application requires dilution of Rhenofit® CNT, we suggest the following:

To prevent the tubes from re-agglomeration we recommend to dilute the CNT-dispersion and not in reverse order. (Re-agglomeration can

reduce the performance of the tubes in the application).

*First mentioned property is the most important one

CNT = Carbon Nanotube, MW = Multi wall, SW = Single wall, aq = aqueous, LM = Low molecular weight

12 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Composite Energy storge

Construction & Living Coating & inks

Rhenofit CNT-2/-3:

MW-/SW-CNT with low molecular weight surfactant

Latex Rhenofit CNT-3: Antistatic properties in combination with

colorable material (new regulation for latex gloves!)

NBR-Masterbatch synthesis (IP-protection) with Rhenofit CNT-

2/CNT-3: Technical rubber goods

Rhenofit CNT-2/-3:

MW-/SW-CNT with low molecular weight surfactant

Infrared panel Rhenofit CNT-2: excellent thermal conductivity

for fast heat transfer

Concrete Rhenofit CNT-3: Increasing tensile strength and

pressure strength

Rhenofit CNT-4:

SW-CNT with polymeric surfactant

Electrode material to increase capacity and charging cycles in Li-

Ion batteries

Also applicable for electrodes of Zn-graphite, Pb-acid batteries

Cu- & Al-foil coating with SW-CNT material

Rhenofit CNT-3/-5:

SW-CNT with low molecular weight surfactants

Used for coatings (e.g. varnishs with resins or PTFE) with antistatic

properties in combination with transparency, shiny products with

excellent haptics

Varnishs for PVC-coatings: truck tarps, synthetic leather,

conveyer belts, textile constructions

Application diversification

Electrical & thermal conductivity, mechanical strength

13 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Composite Energy storge

Construction & Living Coating & inks

Rhenofit® CNT-2/-3:

MW-/SW-CNT with low molecular weight surfactant

Latex Rhenofit® CNT-3: Antistatic properties in combination

with colorable material (new regulation for latex gloves!)

NBR-Masterbatch synthesis (IP-protection) with Rhenofit® CNT-

2/CNT-3: Technical rubber goods

Rhenofit CNT-2/-3:

MW-/SW-CNT with low molecular weight surfactant

Infrared panel Rhenofit CNT-2: excellent thermal conductivity

for fast heat transfer

Concrete Rhenofit CNT-3: Increasing tensile strength and

pressure strength

Rhenofit CNT-4:

SW-CNT with polymeric surfactant

Electrode material to increase capacity and charging cycles in Li-

Ion batteries

Also applicable for electrodes of Zn-graphite, Pb-acid batteries

Cu- & Al-foil coating with SW-CNT material

Rhenofit CNT-3/-5:

SW-CNT with low molecular weight surfactants

Used for coatings (e.g. varnishs with resins or PTFE) with antistatic

properties in combination with transparency, shiny products with

excellent haptics

Varnishs for PVC-coatings: truck tarps, synthetic leather,

conveyer belts, textile constructions

Application diversification

Electrical & thermal conductivity, mechanical strength

14 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Composite Energy storge

Construction & Living Coating & inks

Rhenofit CNT-2/-3:

MW-/SW-CNT with low molecular weight surfactant

Latex Rhenofit CNT-3: Antistatic properties in combination with

colorable material (new regulation for latex gloves!)

NBR-Masterbatch synthesis (IP-protection) with Rhenofit CNT-

2/CNT-3: Technical rubber goods

Rhenofit CNT-2/-3:

MW-/SW-CNT with low molecular weight surfactant

Infrared panel Rhenofit CNT-2: excellent thermal conductivity

for fast heat transfer

Concrete Rhenofit CNT-3: Increasing tensile strength and

pressure strength

Rhenofit® CNT-4/-6:

SW-CNT with polymeric surfactant

Electrode material to increase capacity and charging cycles in Li-

Ion batteries

Also applicable for electrodes of Zn-graphite, Pb-acid batteries

Cu- & Al-foil coating with SW-CNT material

Rhenofit CNT-3/-5:

SW-CNT with low molecular weight surfactants

Used for coatings (e.g. varnishs with resins or PTFE) with antistatic

properties in combination with transparency, shiny products with

excellent haptics

Varnishs for PVC-coatings: truck tarps, synthetic leather,

conveyer belts, textile constructions

Application diversification

Electrical & thermal conductivity, mechanical strength

15 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Composite Energy storge

Construction & Living Coating & Inks

Rhenofit CNT-2/-3:

MW-/SW-CNT with low molecular weight surfactant

Latex Rhenofit CNT-3: Antistatic properties in combination with

colorable material (new regulation for latex gloves!)

NBR-Masterbatch synthesis (IP-protection) with Rhenofit CNT-

2/CNT-3: Technical rubber goods

Rhenofit® CNT-2/-3:

MW-/SW-CNT with low molecular weight surfactant

Infrared panel Rhenofit® CNT-2: excellent thermal conductivity

for fast heat transfer

Concrete Rhenofit® CNT-3: Increasing tensile strength and

pressure strength

Rhenofit CNT-4:

SW-CNT with polymeric surfactant

Electrode material to increase capacity and charging cycles in Li-

Ion batteries

Also applicable for electrodes of Zn-graphite, Pb-acid batteries

Cu- & Al-foil coating with SW-CNT material

Rhenofit CNT-3/-5:

SW-CNT with low molecular weight surfactants

Used for coatings (e.g. varnishs with resins or PTFE) with antistatic

properties in combination with transparency, shiny products with

excellent haptics

Varnishs for PVC-coatings: truck tarps, synthetic leather,

conveyer belts, textile constructions

Application diversification

Electrical & thermal conductivity, mechanical strength

16 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Composite Energy storge

Construction & Living Coating & inks

Rhenofit CNT-2/-3:

MW-/SW-CNT with low molecular weight surfactant

Latex Rhenofit CNT-3: Antistatic properties in combination with

colorable material (new regulation for latex gloves!)

NBR-Masterbatch synthesis (IP-protection) with Rhenofit CNT-

2/CNT-3: Technical rubber goods

Rhenofit CNT-2/-3:

MW-/SW-CNT with low molecular weight surfactant

Infrared panel Rhenofit CNT-2: excellent thermal conductivity

for fast heat transfer

Concrete Rhenofit CNT-3: Increasing tensile strength and

pressure strength

Rhenofit CNT-4:

SW-CNT with polymeric surfactant

Electrode material to increase capacity and charging cycles in Li-

Ion batteries

Also applicable for electrodes of Zn-graphite, Pb-acid batteries

Cu- & Al-foil coating with SW-CNT material

Rhenofit® CNT-3/-5:

SW-CNT with low molecular weight surfactants

Used for coatings (e.g. varnishs with resins or PTFE) with antistatic

properties in combination with transparency, shiny products with

excellent haptics

Varnishs for PVC-coatings: truck tarps, synthetic leather,

conveyer belts, textile constructions

Application diversification

Electrical & thermal conductivity, mechanical strength

17 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Composite Energy storage

Construction & Living Coating & inks

Rhenofit® CNT-2/-3:

MW-/SW-CNT with low molecular weight surfactant

Latex Rhenofit® CNT-3: Antistatic properties in combination

with colorable material (new regulation for latex gloves!)

NBR-Masterbatch synthesis (IP-protection) with Rhenofit® CNT-

2/CNT-3: Technical rubber goods

Rhenofit® CNT-2/-3:

MW-/SW-CNT with low molecular weight surfactant

Infrared panel Rhenofit® CNT-2: excellent thermal conductivity

for fast heat transfer

Concrete Rhenofit® CNT-3: Increasing tensile strength and

pressure strength

Rhenofit® CNT-4/-6:

SW-CNT with polymeric surfactant

Electrode material to increase capacity and charging cycles in Li-

Ion batteries

Also applicable for electrodes of Zn-graphite, Pb-acid batteries

Cu- & Al-foil coating with SW-CNT material

Rhenofit® CNT-3/-5:

SW-CNT with low molecular weight surfactants

Used for coatings (e.g. varnishs with resins or PTFE) with antistatic

properties in combination with transparency, shiny products with

excellent haptics

Varnishs for PVC-coatings: truck tarps, synthetic leather,

conveyer belts, textile constructions

Electrical & thermal conductivity, mechanical strength

Application diversification

18 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Rhenofit® CNT is a ready to use dispersion

Storage and working condition should be above 10 °C

pH value can be adapted with alkaline or acidic substances depending on the

specific Rhenofit® CNT type

Dispersions are stable for at least 24 months

We recommend to stir Rhenofit® CNT before use

Dilute Rhenofit® CNT with the pre-mixed formulation (order might be important)

To get antistatic properties the dispersion can be diluted by the factor of 10

If possible try not to dump Rhenofit® CNT into a formulation

NOT recommended

Recommended

General Comments

Rhenofit® CNT guidelines

19 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Production sites

12 production sites in 8

countries

Technical competence centers

7 Technical competence

centers in Argentina, China,

Germany, India, Japan and

USA

Sales offices

Worldwide sales offices of

LANXESS and local distributors

Global Presence of BU Rhein Chemie

Technical competence center Production site / laboratory

Headquarters

Krefeld (DE)

Cologne(DE)

Porto Feliz (BR)

Mannheim (DE)

Chardon (US)

Burzaco (AR)

Lipetsk (RU)

Jhagadia (IN)

Little Rock (US)

Merlo (AR)

Toyohashi (JP)

Qingdao (CN)

Leverkusen (DE)

20 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

Formulated Product Engineering flexibility

Free Choice of CNT and dispersing system

Solvent based products under development

Quality standards

Worldwide support for FPE*

Optimized supply chain

Minimizing health risks

Handling solution

Application advantage

Business opportunities

Benefits at a glance

*Formulated Product Engineering

21 Title of presentation ▪ Speaker ▪ Place, date … [ OPTIONAL ]

QUALITY WORKS.