The CAMPUS Polymer Database

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The CAMPUS Polymer Database
The CAMPUS
initiative:
Grade-specific plastics
selection
Mike Ashby and David Cebon, Cambridge, UK, 2007
© MFA and DC 2007
Outline: the CAMPUS database
• Data requirements for material selection
• The need for standardization
• The CAMPUS philosophy
• The Benefits
• The CAMPUS participants
• Demo - CAMPUS data in CES
For more information on CAMPUS, visit www.campusplastics.com
Resources:
• The CES CAMPUS Module in the CES EduPack) software
-- Granta Design, Cambridge (www.grantadesign.com)
Unit 8, Frame 8.1
© MFA and DC 2007
Data requirements for material selection
•
In the world today, there are over 40,000 different plastic grades to
choose from.
•
Carrying out a selection necessitates the comparison of many different
resins from many different producers.
•
Although data is widely available and easy to obtain, carrying out a
selection can be virtually impossible.
This is due to a lack of reliable, comparable data.
© MFA and DC 2007
The need for standardization
Lack of Uniformity:
Many national standards in use around the world:
ASTM – US
BS – Great Britain
AFNOR – France
DIN – Germany
JIS - Japan
Producers use different standards and report different properties and
units. This prevents comparison.
Supplier A
Supplier B
Grade X-1 Datasheet
Grade Y-2 Datasheet
Tensile Modulus
380 ksi
Tensile Modulus
2600 MPa
Flexural Modulus
370 ksi
Flexural Modulus
-
HDT @ 264 psi
162 °F
HDT @ 0.45 MPa
89 °C
Notched Izod Impact @ 73 °F
8 ft-lb/in
Charpy Notched Impact
Strength @ 23 °C
5 kJ/m2
© MFA and DC 2007
The need for standardisation
Test standards:
Test standards are not sufficiently stringent.
Variability in specimen preparation, test methods and test conditions
leads to non-comparable data
Source
Specimen
thickness
(mm)
Specimen
preparation method
Annealed?
HDT @
1.8MPa (°C)
Supplier A
3.2
Inj Mould
No
76
"
"
Comp Mould
Yes
100
Supplier B
12.7
?
No
92
"
"
?
Yes
100
Supplier C
"
Inj Mould
No
85
"
"
Inj Mould
Yes
93
"
"
Comp Mould
Yes
100
© MFA and DC 2007
The CAMPUS philosophy
CAMPUS = Computer Aided Material Pre-selection by Uniform Standards
The aim of the CAMPUS group, to achieve truly comparable data.
A uniform global standard ensuring:
- Uniform specimen geometry
- Standardized specimen preparation
- Uniform test methods
- Uniform test conditions
- Standard properties profile
© MFA and DC 2007
The CAMPUS philosophy
• CAMPUS adopted three ISO standards:
ISO 10 350
ISO – The international
organisation for standardization
Acquisition and Presentation of comparable
Single-Point-Data
e.g. Tensile Modulus, Volume Resistivity
ISO 11 403–1
ISO 11 403–2
Acquisition and Presentation of comparable
Multi-Point-Data
e.g. Viscosity vs. Shear Rate curves
• All participating producers required to produce CAMPUS data according
to these standards.
• Result - completely standardized test methods and uniform data format
© MFA and DC 2007
The benefits of CAMPUS
• Truly comparable data for use in plastics selection
• Immediate access to over 5600 grades of plastic from more than 30
suppliers
• High quality data for design and CAE calculations
• Eliminates need to learn each producers database and data structure
• Cost savings to both end users and producers due to reduction in the
amount of testing
© MFA and DC 2007
Brief history of CAMPUS
1988
Release of CAMPUS v1.0 database, single point data, jointly developed by
Bayer, BASF, Hoechst (now Ticona), and Hüls (now Degussa)
1990
CAMPUS v2.0, incorporates multi-point data
1993
Dow Chemical and DuPont join CAMPUS Steering Committee
1994
CAMPUS v3.0, integration of CAMPUS ISO standards
1996
Japanese language version of CAMPUS database released
1997
49 CAMPUS participants from Europe, US and Asia
2001
CAMPUS v4.5: TPE and chemical resistance data
2007
CAMPUS v5.1: enhanced compositional data, long-term heat aging
© MFA and DC 2007
CAMPUS Participants
A. Schulman GmbH
EMS-Chemie
ALBIS Plastic GmbH
Hexion Specialty Chemicals
Arkema
Lanxess Deutchland GmbH
BASF
Leuna-Miramid GmbH
Bayer MaterialScience AG
LG Chemical Ltd.
Bayer Polymers
Polimeri Europa SRL
Borealis AG
Polyone Engineered Materials Europe
The Dow Chemical Company
RadiciPlastics
Degussa AG
Rhodia Engineering Plastics
DSM Engineering Plastics
Röhm GmbH & Co. KG
Du Pont Engineering Polymers / Americas
Solutia Europe SA/NV
Du Pont Engineering Polymers / Europe
Solvay
Elastogran GmbH
Teijin Chemicals Ltd
Ticona
© MFA and DC 2007

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