Mike Ashby and David Cebon, Cambridge, UK, 2007

© MFA and DC 2007

The CAMPUS initiative:

Grade-specific plastics

selection

© 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

Resources:

• The CES CAMPUS Module in the CES EduPack) software

-- Granta Design, Cambridge (www.grantadesign.com)

Unit 8, Frame 8.1

For more information on CAMPUS, visit www.campusplastics.com

© 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 DIN – Germany

AFNOR – France JIS - Japan

Producers use different standards and report different properties and units. This prevents comparison.

Supplier A

Grade X-1 Datasheet

Tensile Modulus 380 ksi

Flexural Modulus 370 ksi

HDT @ 264 psi 162 °F

Notched Izod Impact @ 73 °F 8 ft-lb/in

Supplier B

Grade Y-2 Datasheet

Tensile Modulus 2600 MPa

Flexural Modulus -

HDT @ 0.45 MPa 89 °C

Charpy Notched Impact Strength @ 23 °C

5 kJ/m2

© MFA and DC 2007

The need for standardisation

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

Test standards:

Test standards are not sufficiently stringent.

Variability in specimen preparation, test methods and test conditions leads to non-comparable data

© MFA and DC 2007

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

The CAMPUS philosophy

© MFA and DC 2007

The CAMPUS philosophy

• CAMPUS adopted three ISO standards:

ISO 10 350 Acquisition and Presentation of comparable Single-Point-Datae.g. Tensile Modulus, Volume Resistivity

ISO 11 403–1 Acquisition and Presentation of comparable ISO 11 403–2 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

ISO – The international organisation for standardization

© 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

ALBIS Plastic GmbH

Arkema

BASF

Bayer MaterialScience AG

Bayer Polymers

Borealis AG

The Dow Chemical Company

Degussa AG

DSM Engineering Plastics

Du Pont Engineering Polymers / Americas

Du Pont Engineering Polymers / Europe

Elastogran GmbH

EMS-Chemie

Hexion Specialty Chemicals

Lanxess Deutchland GmbH

Leuna-Miramid GmbH

LG Chemical Ltd.

Polimeri Europa SRL

Polyone Engineered Materials Europe

RadiciPlastics

Rhodia Engineering Plastics

Röhm GmbH & Co. KG

Solutia Europe SA/NV

Solvay

Teijin Chemicals Ltd

Ticona