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Copyright 2013 Momentive Performance Materials Inc. All rights reserved. CONFIDENTIAL

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Innovative Thermal Management Solutions with

Thermally Conductive Plastics Containing

Boron Nitride

Dr. Chandra Raman Allison Yeske

BN/Polymer Technology Platform Leader Global Technical Marketing Manager

June 20, 2013


Agenda

1. Making the case for plastics vs. metal

2. Why boron nitride can be the best choice

3. How to work with BN-filled plastics

4. Potential applications for BN-filled plastics

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Thermally Conductive Plastics Containing Boron Nitride (BN)


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Thermally Conductive Plastics Containing Boron Nitride

Coatings

Mega-Trends

Increasing miniaturization with more electrical content

Reducing weight

Introducing more complex designs with less scrap

Thermally conductive plastics

containing boron nitride can help

solve todays challenges.


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Who is Momentive?

Leading Specialty Materials Business with Broad Product Offering

Global

leader in

Boron

Nitride

since 1957


Momentive is uniquely positioned

BN Adds Value in a Variety of Thermal Management Applications

BN as Polymer Additive

High thermal conductivity

Electrically insulating

Typically lower costs vs. metal

Potential Applications

LED lighting fixtures

Electronic assemblies

Printed circuit boards

Electronic component housings

Medical devices

Electric motor housings

Li-Ion battery packaging

Heat Sink

TIM-2

Heat spreader

TIM-1

Die

Die attach

Thermal Core

Heat Sink

TIM-2

Heat spreader

TIM-1

Die

Die attach

Thermal Core

Momentive has significant experience in thermal management.

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Agenda





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General hypotheses of heat sinks

The higher the thermal conductivity of the heat

sink material, the greater the heat transfer

Thermally conductive plastics (2 10 W/mK)

cannot substitute aluminum (100 W/mK)

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Making the case for plastics vs. metal

Modeling of Heat Transfer from a Heat Sink


We would like to hear from you

Can Plastics Perform vs. Metal in Thermal Management Applications?

Aluminum TC ~ 100 W/mK

Thermally Conductive Plastic TC ~ 5 W/mK

1. Same Heat Source LED chips

2. Same Heat Sink Design different materials

3. Performance difference What is the T at the heat source between the heat sinks?

Less than 1 C Between 1 C and 5 C Between 5 C and 10 C Greater than 10 C

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Share your

opinion now!

Real-time Results:

Do you and your

peers share the same

thoughts?


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Summary of modeling results

Where convection is limited, the

heat sink is not the bottleneck in

heat transfer

Heat transfer by 5 W/mK thermally

conductive plastics only ~8% less

than aluminum with the same heat

sink design

Thermally conductive plastics can be effective for

thermal management in convection limited cases..


Modeling of Heat Transfer from a Heat Sink

T0,plast = ~65 oC

T ~3 oC at the heat source

Note: Test data. Actual results may vary


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In both cases, the temperature of the hottest spot

on the heat sink is in the same range.


Results of Heat Transfer from a Heat Sink

10 W LED bulb (~ 60 W incandescent bulb)

BN-filled Plastic Housing

10 W LED bulb (~ 60 W incandescent bulb)

Aluminum Housing

Caveats:

Bulbs employ different heat sink designs LED chip efficiency in each bulb unknown Internal assembly differences may affect heat sink operating temperatures




Extension to New Thermal Management Applications

Aluminum heat sink Plastic heat sink

6 fins 7 fins

By adding just 1 fin, BN-filled plastics can be even more effective

than aluminum at transferring heat. .

Minor design modification

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Whats the issue?

What is limiting the broader use of thermally conductive plastics?

OPTIONS Pick One

Thermal conductivity performance

Physical properties

Total cost or Availability

Difficulty of production & Effort to (re-)design part

Insufficient understanding

12

Share your

opinion now!

Real-time Results:

Do you and your

peers share the same

thoughts?


Agenda





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BN AlN Al2O3 SiO2 ZnO

Typical Thermal Properties

Thermal Conductivity (W/m-K) 300+ 260 30 1.4 54

Specific Heat (J/kg-K @ 25 oC) 794 734 798 689 523

Theoretical Density (g/cc) 2.25 3.26 3.98 2.20 5.64

BN vs. other thermally conductive + electrically insulating fillers

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Why BN can be the best choice

Boron Nitride Fillers for Thermally Conductive Plastics

Properties of BN can make it the best overall choice for heat management.



Typical Electrical Properties

Dielectric Constant 3.9 8.8 9.7 3.8 9.9

Volume Resistivity (ohm-cm) 10 15 10 14 10 14 10 14 10 7

BN vs. other thermally conductive + electrically insulating fillers

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Why BN can be the best choice

Boron Nitride Fillers for Thermally Conductive Plastics

BN is strong when it comes to electrical insulation.



Typical Mechanical Properties

Coefficient of Expansion (ppm/K)


Key Features of Momentives BN

Thermally conductive

Electrically insulating

Light weight

Stable at high temperatures

Lubricous

Inert

Resistant to thermal shock

Transparent to microwaves

Gentle on processing equipment

White in color

May be considered for use in many skin and food contact applications that are subject to regulation

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Adding BN may increase

productivity

Faster in-mold cooling Shorter molding cycle times Improved press utilization


Overview of Momentive Solutions

BN Fillers for Thermally Conductive Plastics

Momentive Performance Materials produces over 70 standard and custom grades of boron nitride (BN)

powders to meet a wide range of application requirements and has over 50 years of expertise in the

synthesis and refinement of BN powders.

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PT110

platelet grade

PT350

agglomerate grade CF600

mixed grade

PolarTherm*

grades

CoolFlow*

grades

CF500 mixed grade

CoolFX*

grades

CFX-1020 hybrid grade



*CoolFlow, PolarTherm, and CoolFX are trademarks of Momentive Performance Materials Inc.


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PolarTherm* & Cool Flow*

BN Powders Can increase thermal

conductivity up to 50x over the

neat resin while maintaining

electrical insulation

Can provide high thermal

conductivity in a wide range of

resins

May be considered for use in the

most demanding applications


BN Fillers for Thermally Conductive Plastics

*CoolFlow and PolarTherm trademarks of Momentive Performance Materials Inc.



New Developments: CoolFX* Hybrid Fillers

CoolFX is a new generation of fillers. When compared to

traditional BN powders, CoolFX grades can provide:

Same high thermal conductivity with electrical insulation

Improved physical properties

Easier handling and compounding

Cost savings

*CoolFX is a trademark of Momentive Performance Materials Inc.

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High Thermal Conductivities


CoolFX grades typically meet or exceed thermal

conductivities of traditional BN powders.

CoolFX 1020

filler

CoolFX 1022

filler

Traditional

BN CoolFX 1021

filler

+100%

increase


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0

10

20

30

40

50

60

70

80

6800

7300

7800

8300

8800

Physical Property Improvements


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Resin = PA6

Processing mode = injection molding

Improved Tensile Modulus

MPa

+14%

+12%

CoolFX 1020

filler

CoolFX 1022

filler Traditional

BN

Significant physical property improvements with CoolFX grades

Improving practical toughness can expand application space

Improved Tensile Strength

MPa

+58%

+29%

CoolFX 1020

filler CoolFX 1022

filler

Traditional

BN




0

5

10

15

20

25

30

35

Physical Property Improvements


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Significant physical property improvements with CoolFX grades

Improving practical toughness can expand application space

Resin = PA6

Processing mode = injection molding

Improved Impact

CoolFX 1020

filler

CoolFX 1022

filler Traditional

BN

+125%

+101%

Notched Izod

Impact

(J/m)

0,0%

0,2%

0,4%

0,6%

0,8%

1,0%

1,2%

1,4%

Improved Strain at Break

CoolFX 1020

filler

CoolFX 1022

filler

+50% +38%

Traditional

BN




CoolFX grades represent a new

generation of fillers

o Higher bulk density may lead

to easier handling and feeding

o Powder flow properties can be

improved

o Use of a coupling agent

improves wetting

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Easier Handling and Compounding




-40%

-35%

-30%

-25%

-20%

-15%

-10%

-5%

0%

Comparing 5 W/mK Plastic Formulations


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High thermal conductivities are now possible at lower cost.

CoolFX 1020 filler

57%

CoolFX 1022 filler

72%

Traditional BN

- 10% cost reduction

- 30% cost reduction

Total Filler Loading (voI %)

Total Filler Loading (wt %)

38% 40% 55%

% cost reduction

($/lb)

50%




How did they do that?


1. Optimized formulation by

incorporating other thermally conductive

+ electrically insulating fillers 2. Improved filler-resin interface

using coupling agents

3. Delivered as a single powder


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Agenda





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Take the guess work out of formulating

thermally conductive plastics

Accurately predict the thermal

conductivity of multi-filler systems

Estimates are within less than 5% of

measured thermal conductivity

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How to work with BN-filled plastics

Predicting Performance of Thermally Conductive Plastics

Lewis-Nielsen Model

for estimating thermal conductivity of

resin + filler(s) systems

Predicted

TC (W/mK)

Measured

TC (W/mK)

Resin + 2 fillers 4.8 5.0




We can suggest ways to:

o Improve feeding and mixing

o Optimize in-plane or through-

plane thermal conductivity

o Improve stability of the

compounded strands

throughout the process

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How to work with BN-filled plastics

Addressing Compounding Challenges with BN Powders


Agenda





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Thermal Management Challenges

Potential Applications for BN-Filled Plastics

Industrial Electronics

Automotive LED Lighting

Aerospace/Defense

Medical Devices

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Theoretical Application Case Study

Thermally Conductive Plastics Containing BN in LED Lighting

Challenge:

Reduce cost in LED light bulbs

Potential Solution:

Replace aluminum housing with thermally conductive plastic containing BN

o Can combine heat sink and electrical insulator

in a single component

o May lead to lower assembly cost

o Can enable design and color freedom

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Thermally Conductive Plastics Containing BN in Medical

Challenge:

Improve heat dissipation in a medical device

Potential Solution:

Construct housing out of a thermally conductive plastic containing BN

o Can improve performance of device in use

o Can leverage white color to eliminate

painting step

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Thermally Conductive Plastics Containing BN in Automotive

Challenge:

Reduce weight in automotive thermal management systems

Potential Solution:

Replace aluminum heat sink with thermally conductive plastic containing BN

o Can save 25-40% in weight

o Can save space by consolidating

components and/or making them smaller

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Extensive knowledge of BN powders

Broad range of BN powders and hybrid fillers can enable high thermal conductivities while maintaining electrical

isolation

CoolFX* hybrid fillers can deliver high thermal conductivities with improvements in physical properties, processing and

cost

Formulation assistance can remove some of the guess work

Compounding advice can help optimize your product

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Momentive Powders

Pellets

Product

Summary

Thermally Conductive Plastics Containing Boron Nitride (BN)



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Coatings

Summary


Follow Momentive on SpecialChem for the latest news about

thermally conductive plastics containing boron nitride

http://www.specialchem4polymers.com/tc/boron-nitride-thermally-conductive-plastic/index.aspx


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Coatings

QUESTIONS?

Dr. Chandra Raman Allison Yeske

BN/Polymer Technology Platform Leader Global Technical Marketing Manager


DISCLAIMER: THE MATERIALS, PRODUCTS AND SERVICES OF MOMENTIVE PERFORMANCE MATERIALS INC., MOMENTIVE PERFORMANCE MATERIALS USA INC.,

MOMENTIVE PERFORMANCE MATERIALS ASIA PACIFIC PTE. LTD., MOMENTIVE PERFORMANCE MATERIALS WORLDWIDE INC., MOMENTIVE PERFORMANCE

MATERIALS GmbH, THEIR SUBSIDIARIES AND AFFILIATES DOING BUSINESS IN LOCAL JURISDICTIONS (collectively SUPPLIERS), ARE SOLD BY THE RESPECTIVE LEGAL ENTITY OF THE SUPPLIER SUBJECT TO SUPPLIERS STANDARD CONDITIONS OF SALE, WHICH ARE INCLUDED IN THE APPLICABLE DISTRIBUTOR OR OTHER SALES AGREEMENT, PRINTED ON THE BACK OF ORDER ACKNOWLEDGMENTS AND INVOICES, AND AVAILABLE UPON REQUEST. ALTHOUGH ANY

INFORMATION, RECOMMENDATIONS, OR ADVICE CONTAINED HEREIN IS GIVEN IN GOOD FAITH, SUPPLIERS MAKE NO WARRANTY OR GUARANTEE, EXPRESS OR

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