SPE Vinyltec® 2020

Thomas Schelling

Thomas Schelling

Teknor Apex

Process Technology for PVC Compounding


The workshop technical presentation “Process Technology for PVC Compounding” reviews the fundamentals of manufacturing PVC compounds. Areas covered:

  • Concept of plastics compounding, overview of PVC compound design, resin structure, and unique considerations for PVC
  • The dry blending process for PVC and the commercial equipment used to produce them
  • Both batch and continuous melt mixing equipment for PVC, which include: Banbury mixers, single and twin screw extruders, continuous mixers, and kneaders are discussed. Special designs used specifically for PVC are highlighted.
  • The various methods used to pelletize PVC compounds.

About the Speaker

Thomas E. Schelling joined Teknor Apex in 1998 and currently works as a Technical Service Associate for the Teknor Apex Vinyl Division. In this capacity, he is responsible for the of development and technical support for HALGUARD®, Teknor Apex’s halogen-free flame-retardant (HFFR) product line for wire & cable applications. He also supports APEX® rigid PVC dry blend compounds for the building & construction, and consumer/industrial markets. Previously, he held positions within Teknor Apex in research and development, technical management, production management, and process engineering.

He possesses a Master of Science degree in Plastics Engineering from the University of Massachusetts at Lowell and a Bachelor of Science degree in Chemical Engineering from the University of Maryland at College Park. Prior to Teknor Apex, he worked for A. Schulman Inc. and Adell Plastics Inc. in processing engineering positions, and the Maryland Department of the Environment as a pollution prevention engineer.

Prior co-authored publications include:

  • Schelling, Thomas E.; Hoover, Charles E.; Cox, Maryellen. “Comparison of Lead and Non-Lead Stabilized Flexible PVC Compound Technology for Insulation and Sheathing”, Proc 56th International Wire and Cable Symposium (2007).
  • Schelling, Thomas E.; Hoover, Charles E.; Cox, Maryellen; Marshall, Nicole. “Greener Jacket Compound Solutions for VW-1 Rated Cable Applications”, Proc 61st International Wire and Cable Symposium (2012).
  • Schelling, Thomas E.; Ruprecht, Roland; Cox, Maryellen. “Comparison of HFFR Jacket Compound Solutions: Polyolefin vs. TPE”, Proc 62nd International Wire and Cable Symposium (2013).
  • Schelling, Thomas E. “Process Technology for PVC Compounding”, SPE Vinyltec 2018, Oct. 23-25, 2018, Chicago, IL.
  • Schelling, Thomas E. “Process Technology for PVC Compounding”, SPE Vinyltec 2019, Oct. 1 – 3, 2019, Akron, OH.

This educational program is provided as a service of SPE. The views and opinions expressed on this or any SPE educational program are those of the Speaker(s) and/or the persons appearing with the Speaker(s) and do not necessarily reflect the views and opinions of Society of Plastics Engineers, Inc. (SPE) or its officials, employees or designees. To comment or to present an opposing or supporting opinion, please contact us at info@4SPE.org.

Refund Policy for Virtual Events

No refunds will be granted after October 8. Registration may not be transferred.

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