This document discusses advanced materials for improving performance in automotive electronics. It focuses on insulation and encapsulation systems for ignition coils, electric motors, inverters/converters, and electronic control units. Three insulation systems are described for ignition coils with different properties. Encapsulation systems are discussed for various electric vehicle components to provide thermal endurance, crack resistance, and other benefits. Project examples are provided on developing high temperature electronics for electric vehicles.

1. Advanced Materials
Raising insulation performance in car electronics
Quarter 2, 2013

2. Advanced Materials 2
Table of contents
Raising performance Reliability and protection for electronic devices
Ignition coils Improved endurance for ignition coils
Insulation systems for easy processing
Insulation systems for high Tg
Insulation systems for high performance
Insulation systems comparison
E-mobility The next technological leap for automotive industry
Encapsulation systems for e-motors
Encapsulation systems for inverters and converters
Encapsulation systems for electronic control unit (ECU)
Project help

3. Advanced Materials 3
Raising performance
Reliability and protection for electronic devices
!! Araldite® insulating systems for ignition coils
!! Araldite® and Arathane® encapsulants for harsh environments
!! Probimer® soldermasks for high temperature performance
!! Focus on e-mobility
< Table of content Ignition coils > E-mobility >Raising performance >

4. Advanced Materials 4
Improved endurance for ignition coils
Main features and benefits
!! Impregnation of fine wire windings (30!m)
!! Operating temperature 150-180°C / >1000 hrs
!! Thermal shock / thermal mismatch (-40° / +140°C)
!! High voltage resistance (up to 30 KV/mm)
!! Crack resistance
!! Adhesion to thermoplastic housing / bobbin
!! Compatibility with integrated PCB
!! Dielectric strength, dielectric constant
< Table of content Ignition coils > E-mobility >Raising performance >

5. Advanced Materials 5
Improved endurance for ignition coils
Manufacturing process: vacuum potting
!! Mass production => Short cycle times (10´000 parts per day and equipment)
!! Fast filling (gaps 1 mm)
!! Short curing (current 4 - 6hrs, future 0.5 - 2hrs)
< Table of content Ignition coils > E-mobility >Raising performance >

6. Advanced Materials 6
Insulation systems for easy processing
Araldite® CW 5725-3 / Aradur® HY 5726
< Table of content Ignition coils > E-mobility >Raising performance >
Curing conditions Hot
Tg ISO 11357-2 144°C
CTE ISO 11359 35 10-6K-1
Thermal class IEC 60085 H
Hardness shore D at 23°C DIN 53505 D90
Flammability Class / Requirements UL 94 / HB

7. Advanced Materials 7
Insulation systems for high Tg
Araldite® CW 5763 / Aradur® HY 5726
< Table of content Ignition coils > E-mobility >Raising performance >
Curing conditions Hot
Tg ISO 11357-2 126°C
CTE ISO 11359 33 10-6K-1
Thermal class IEC 60085 H
Hardness shore D at 23°C DIN 53505 D90
Flammability Class / Requirements UL 94 / HB

8. Advanced Materials 8
Insulation systems for high performance
Araldite® CW 5742 / Aradur® HY 5726
< Table of content Ignition coils > E-mobility >Raising performance >
Curing conditions Hot
Tg ISO 11357-2 210°C
CTE ISO 11359 38 10-6K-1
Thermal class IEC 60085 N
Hardness shore D at 23°C DIN 53505 D90
Flammability Class / Requirements UL 94 / HB

9. Advanced Materials 9
Insulation systems comparison
Flexural strength
in Mpa
< Table of content Ignition coils > E-mobility >Raising performance >

10. Advanced Materials 10
Insulation systems comparison
Viscosity at 60°C
in Pa.s
< Table of content Ignition coils > E-mobility >Raising performance >

11. Advanced Materials 11
Insulation systems comparison
Glass transition temperature Tg
in °C
< Table of content Ignition coils > E-mobility >Raising performance >

12. Advanced Materials 12
E-mobility partner
The next technological leap for automotive industry
New environment regulations towards CO2 reduction, rising fuel prices and growing mobility,
all are factors that trigger the need to develop alternative propulsion forms in automotive
market. Thus electrification of powertrain systems has been becoming a major area of focus
for OEMs and industry suppliers.
Hunstman offers a wide range of encapsulating solutions meeting the most stringent
requirements in terms of processibility, thermal management, dielectric and mechanic
properties.
For plug-in-hybrids, semi-hybrids to full-electric vehicles, our products can be used in e-motors,
inverters and converters as well as ECUs.
< Table of content Ignition coils > E-mobility >Raising performance >

13. Advanced Materials 13
Encapsulation for e-motors
Main features and benefits
!! High operating temperature / thermal endurance
!! Thermal mismatch / low CTE
!! Crack resistance / toughness
!! Heat conductivity
< Table of content Ignition coils > E-mobility >Raising performance >

14. Advanced Materials 14
Encapsulation for e-motors
Aratherm® CW 2731
Araldite® CW 229-3 / Aradur® HW 229-1
< Table of content Ignition coils > E-mobility >Raising performance >
Curing conditions Hot
Tg ISO 11357-2 165°C
CTE Below Tg / Above Tg 24 / 48 10-6K-1
Thermal class IEC 60085 H
Thermal conductivity at 25°C ISO 8894-1 3.0 W/mK
Flammability Class / Requirements UL 94 / V-0 (12 mm)
Curing conditions Hot
Tg ISO 11357-2 110 - 125°C
CTE Below Tg / Above Tg 30 / 100 10-6K-1
Thermal class IEC 60085 H
Thermal conductivity at 25°C ISO 8894-1 0.65 - 0.75 W/mK
Flammability Class / Requirements UL 94 / V-1 (12 mm), HB (4 mm)

15. Advanced Materials 15
Encapsulation for inverters and converters
Main features and benefits
!! Flexible
!! Excellent flow properties
< Table of content Ignition coils > E-mobility >Raising performance >

16. Advanced Materials 16
Encapsulation for inverters / converters
Arathane® CW 5620 / Arathane® HY 5610
Arathane® CW 5650 / Arathane® HY 5610
< Table of content Ignition coils > E-mobility >Raising performance >
Curing conditions Cold
Tg ISO 11357-2 20°C
Thermal class IEC 60085 B
Hardness shore D at 23°C DIN 53505 D40 / A85
Flammability Class / Requirements UL 94 / V-0 (6 mm)
Curing conditions Cold
Tg ISO 11357-2 -40°C
Thermal class IEC 60085 E
Hardness shore D at 23°C DIN 53505 D27 / A83
Flammability Class / Requirements UL 94 / V-0 (6 mm)

17. Advanced Materials 17
Encapsulation for Electronic Control Unit
Main features and benefits
!! Flexibility
!! Processibility
!! Low viscosity
!! Thermal endurance
< Table of content Ignition coils > E-mobility >Raising performance >

18. Advanced Materials 18
Encapsulation for Electronic Control Unit
Arathane® CW 5620 / Arathane® HY 5610
Araldite® CW 2243-2 L / Aradur® HY 1872
< Table of content Ignition coils > E-mobility >Raising performance >
Curing conditions Cold
Tg ISO 11357-2 20°C
Thermal class IEC 60085 B
Hardness shore D at 23°C DIN 53505 D40 / A85
Flammability Class / Requirements UL 94 / V-0 (6 mm)
Curing conditions Cold
Tg ISO 11357-2 8°C
Thermal class IEC 60085 E
Hardness shore D at 23°C DIN 53505 D20 / A70
Flammability Class / Requirements n.a.

19. Advanced Materials 19
Encapsulation for Electronic Control Unit
Euremelt® 3413
< Table of content Ignition coils > E-mobility >Raising performance >
Curing conditions Cold
Tg ISO 11357-2 -35°C
Thermal class IEC 60085 F
Hardness shore D at 23°C DIN 53505 D28 / A86
Flammability Class / Requirements UL 94 / V-0

20. Advanced Materials 20
Project help
Reliable and cost efficient high temperature electronics for eMobillity
based on PCB produced with high temperature resistant resin systems
Challenges for eMobility
!! High service temperature in power electronics
!! High production costs
Method of resolution
!! High temperature PCBs
!! High temperature casting systems
!! Embedded technologies
< Table of content Ignition coils > E-mobility >Raising performance >

21. Advanced Materials 21
Project help
Targets for eMobility
!! Extended range of temperature
!! Reduction of weight
!! Reduction of costs
!! Increase reliability
Project Partners
!! Huntsman Advanced Materials GmbH
!! Isola GmbH
!! Lackwerke Peters GmbH & Co KG
!! Schweizer Electronic AG
!! Lüberg Elektronik GmbH & Co KG
!! Linner Elektronik AG
!! Hofmann Leiterplatten GmbH
!! Siemens AG
!! Bosch GmbH
!! Continental AG
!! Daimler AG
!! Innovation Green
!! Fraunhofer IZM
!! Universität Bayreuth
< Table of content Ignition coils > E-mobility >Raising performance >

22. Advanced Materials 22
Project help
Reliability, protection and lifetime for high temperature electronics
Araldite® LZ 8278 N90 / Araldite® HZ 8279 Z50
Laminating system for halogen free high Tg application
Description
Araldite® LZ 8278 N90 / Araldite® HZ 8279 Z50 is a 2-component benzoxazine system used in
non-halogen and high Tg level electrical laminates and prepregs production. The product features:
!! Low moisture absorption
!! Good thermal stability
!! High modulus
!! Compatible with lead-free processes
< Table of content Ignition coils > E-mobility >Raising performance >

23. Advanced Materials 23
Project help
Application
To produce laminates and prepregs for printed circuit boards (PCB) with the following performance:
!! Non-halogen FR-4
!! High reliability applications
!! High density interconnect (HDI) PCBs
Advantages
!! Good moisture resistance
!! High modulus
!! Good thermal performance, T 288 > 60 min
!! Low Z-axis expansion
!! UL 94 V0
< Table of content Ignition coils > E-mobility >Raising performance >

24. Advanced Materials 24
Keep our products at your fingertips
Download our mobile apps on your smartphone
With these apps select immediately the right:
!!Araldite® industrial adhesive for your specific need
!!Araldite® composite formulated system for your process / application
Access the product description or send us an email to request
the technical data sheet.
Araldite® - Adhesives (Europe)
Download on iPhone | Android
Huntsman - Composite resins (Europe)
Download on iPhone | Android
View the brochure on SlideShare
With this brochure get an overview of our
comprehensive range of insulation systems
for electronics applications.

25. Advanced Materials 25
For more information
www.huntsman.com/advanced_materials
advanced_materials@huntsman.com
Europe
Huntsman Advanced Materials (Switzerland) GmbH
Klybeckstrasse 200
P.O. Box - 4002 Basel
Switzerland
Tel. +41 61 299 20 41
Fax +41 61 299 20 40

26. Legal Disclaimer
Copyright © 2013 Huntsman Corporation
or an affiliate thereof. All rights reserved.
The use of the symbol ® herein signifies the registration of the associated trademark in one or more, but not all, countries. While the
information and recommendations included in this publication are, to the best of Huntsman s knowledge, accurate as of the date of
publication, nothing contained herein is to be construed as a representation or warranty of any kind, express or implied.