Tire Inner Liner and Butyl Rubbers

Webinar Length: ~78 Min
Language: English
Category: Rubber, Latex & Tyre
Webinar ID: KH0495
Buffet Program: Yes
Weekend Program: Yes
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Available on Demand : Yes
Format: Recorded
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Public Schedule (WeekDay)

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Public Schedule (WeekEnd)

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Non-Member: 300 US$
Group (5 Pax): 720 US$
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Custom Schedule

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The innerliner is one of the most important components in a tire. This is due to the fact the innerliner must ensure tire inflation pressure retention. Loss on of inflation pressure will cause a decrease in tire durability due to excessive casing flexing as it rotates under load, increased vehicle fuel consumption due to increased rolling resistance, and loss of traction and wear performance. And this is even more important with the new generation of electric vehicles. The innerliner is based in halobutyl rubber. Bromobutyl has become the preferred polymer due to the better innerliner to tire ply compound adhesion. All of the new global butyl rubber production over the last ten years has been for bromobutyl for this reason. Butyl based compounds are difficult to process due to the need to isolate and prevent contamination of other tire compounds. Manufacturing operations are therefore designed for this purpose. However halobutyl compounds are relatively easy to process, they only require 2-stage mixing processes, extruder easily and when plied up with a barrier before tire building, handle well in manufacturing. This discussion will overview butyl and halobutyl rubbers, compounding, and impact on tire performance


Brendan Rodgers, based in Austin Texas, has spent 42 years working in the tire and rubber industry with both The Goodyear Tire & Rubber Company and ExxonMobil. He has worked on a broad range of tire and industrial rubber products including hydraulic hose and conveyor belts, materials technology, and product design. He has had work assignments here in the United States, China, Ireland, Italy, and Luxembourg, working on original equipment automobile tires, truck tires, industrial rubber products, and new tire materials technologies. He is the originator of a broad range of patents in tire and rubber technology and many industry publications including editor of the text, Rubber Compounding, Chemistry and Applications, and the text, Tire Engineering, both published by CRC Press. Brendan has a PhD in chemical engineering from The Queen’s University of Belfast in Northern Ireland, where he studied thermodynamics, heat transfer through large rubber sections, and vulcanization kinetics. He has a Master's degree in Polymer Technology also from The Queen’s University, and a BSc in Biological Chemistry from The University of Ulster.

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