John Scheirs

Specialities

Materials and Design

Additives &property modification
Analysis
Biomaterials
Failure analysis
Materials selection
Polymer performance problems

Processing

Blow moulding
Equipment
Fibre reinforced
Film extrusion
Injection moulding
Mixing and compounding
Profile and sheet extrusion

Secondary Operations

Finishing and decorating
Testing
Welding and fastening

Commercial

Environmental and recycling
Expert witness and legal
Technology transfer and licensing

Markets

Automotive
Building
Electrical and electrochemical
Packaging

Other Skills

Degradation
Testing
Training
Trouble shooting
Web site design and manufacture

Areas of specific expertise

Sampling and Sample Preparation

Microscopy of Polymers

Fourier-Transform Infrared Spectroscopic Analysis Methods for Polymers

Thermal Analysis of Polymers

Identification and Analysis of Polymers

Analysis of Blends, Copolymers and Oligomers

Identification and Analysis of Thermoset Elastomers

Analysis of 'Difficult' or Intractable Polymer Samples

Analysis of Additives in Polymers and Elastomers

Analysis of Contaminants and Inclusions in Polymers

Mechanical Failure Mechanisms of Polymers

Chemical Attack of Polymers

Oxidative Degradation of Polymers

Failure of Fibre-Reinforced Composites

Problems Related to Additives in Polymers

Weathering of Polymers

Environmental Stress Cracking of Polymers

Residual Stresses and Weldlines in Polymer Mouldings

Odour, Tainting and Outgassing Problems with Polymers

Adhesion problems with Polymers and Interfaces

Voids, Blisters and Surface Defects

Discoloration of Polymers.

Personal Profile

 

 

Principal Consultant
ExcelPlas Polymer Technology and Testing

Specializing in Degradation, Failure Analysis and Recycling of Polymers

John Scheirs is the author of the leading book on polymer failure entitled 'Compositional and Failure Analysis of Polymers' published by Wiley in England (2000), 766 pages.

He is also the author of the book 'Polymer Recycling - Science, Technology and Applications' published by John Wiley & Sons (UK), 1998.

Services provided by ExcelPlas include:

  • Troubleshooting Plastics Fabrication Processes

  • Polymer Processing and Problem Solving

  • Special Projects, Product Development

  • Polymer Selection for New Applications

  • Failure Analysis of Polymers and Rubbers

  • Chemical Compatibility and Chemical Resistance

  • Polymer Degradation and Stabilization

  • Plastics Identification and Deformulation

  • Contamination Identification

  • Process or Product Optimization

  • Technology Review Reports

  • Expert Witnessing

EDUCATION:

B.Sc. (Hons.), Applied Chemistry, University of Melbourne, 1987

Ph.D., Applied Chemistry, University of Melbourne, 1991

EMPLOYMENT:

1991-1992 Senior Chemist, Mobil-Exxon Joint Venture. Duties included:

  • Testing and analysis of polyethylene products

  • Characterization of polyethylenes by DSC, FTIR, GC, HPLC

1992-1994 Product Development Engineer, Mobil-Exxon Joint Venture (now
Qenos). Duties included:

  • Development of polyethylene pipe, film, blow moulded and extruded products

  • Development of applications for recycled polyethylene

  • Development of applications for recycled crumb rubber

1994-1997 Polymer Consultant (ExcelPlas). Contract research and development in plastics and polymers. Specific projects included:

  • Assessment of the photooxidative stability of polyesters

  • Weathering of plastics and their photostabilization

  • Assessing oxidation and photooxidation of polymers

  • Development of recycling processes for plastics

  • Failure analysis of injection-moulded ABS

  • Development of fluorinated polyurethane coatings

  • Life assessment of transformer insulation

  • Chemical resistance and environmental stress cracking of polycarbonate

  • Failure analysis of engineering plastics and polymer composites

1998-2000 Technical Manager, Coca-Cola Amatil, Beverage Packaging Division. Duties included:

  • Establishing quality control processes and procedures

  • Commisioning of new $25M plant for the closed-loop recycling of PET bottles

2000- Polymer Consultant (ExcelPlas). Contract research and development in plastics and polymers. Services provided include:

  • Troubleshooting Plastics Fabrication Processes

  • Polymer Processing and Problem Solving

  • Special Projects, Product Development

  • Polymer Selection for New Applications

  • Failure Analysis of Polymers and Rubbers

  • Chemical Compatibility and Chemical Resistance

  • Polymer Degradation and Stabilization

  • Plastics Identification and Deformulation

  • Contamination Identification

  • Process or Product Optimization

  • Technology Review Reports

  • Expert Witnessing

PUBLICATIONS:

  • Over 50 scientific publications in international journals as well as six encyclopedia chapters on polymers, plastic recycling and coatings.

  • Author of the leading textbook on polymers and plastics entitled 'Compositional and Failure Analysis of Polymers', John Wiley & Sons, Great Britain, 2000.

  • Author of leading book on plastics recycling ('Polymer Recycling - Science, Technology and Applications'), John Wiley & Sons, Great Britain, 1998. 

  • Coeditor of two books on metallocene-based polyolefins, 'Metallocene-based Polyolefins', John Wiley & Sons, Great Britain, 2000.

SPECIAL INTERESTS:

  • Member of the editorial board of the international journal 'Polymer Degradation and Stabilization', Elsevier Scientific, Netherlands.

Contact Address

Physical address: 3 Esplanade Lane (off The Esplanade), Edithvale, Victoria 3196, Australia.

Postal address: PO Box 2080, Edithvale, Victoria 3196, Australia.

Email address: scheirs.john@pacific.net.au

Tel: + 61 0407 261 913  

Fax: + 613 9772 1330