Video Exclusives


Michelin Vision concept

Sentury

This forward-looking concept is made from bio-sourced, biodegradable materials, using 3D printing.

Click here to watch the video


Advanced driving simulator

Sentury

The new VDS developed by McLaren Applied Technologies and MTS Systems Corporation can accommodate mechanical HIL technology, which offers the potential for real-time integration of difficult-to-model hardware – such as tires – directly into simulations

Click here to watch the video


The Jaguar XJ220 legend lives on

Sentury

Experts at Bridgestone and Don Law reveal more on the development regime behind the new bespoke XJ220 rubber

Click here to watch the video


Web Exclusive Articles

« back to listing

Conference Q&A: Shabnam Ezzoddin, Barez Industrial Group

A study at Barez Industrial Group has looked at the effect of oil on the processing behavior of halobutyl rubber. Foresight researcher Shabnam Ezzoddin explains more

May 12, 2016

 

Please tell us about the study upon which your presentation at Tire Technology Expo 2016 was based.
As a foresight researcher at Barez Industrial Group, Tehran, Iran, I conduct development projects to improve products in the raw materials field. This particular study was a cooperative study in partnership with the Science and Research Branch Islamic Azad University (SRBIAU) University.

It is widely known that the rheological behavior of rubbers is of great importance regarding their affect on rubber processing. In this study, entitled Rheological behavior of butyl rubber and the effect of process oil on its rheology, we analyzed the effect of different amounts of oil on the processing behavior of rubber in a wide range of shear rates similar to shear rate ranges of real rubber processes

What were your findings?
First of all, we found that butyl rubber obeys the power law. The power law predicts that the effective viscosity would decrease with increasing shear rate indefinitely, requiring a fluid with infinite viscosity at rest and zero viscosity as the shear rate approaches infinity.

We found that enhancing the amount of process oil in the rubber matrix increases the slip velocity particularly in dies of large lengths, which would not be a desired result in certain cases. We also found that processing behavior might be affected by process temperature. In this case, we found that the effect of temperature on slip velocity seems to be related to shear rates as well; for instance, at lower shear rates, when temperature increases, slip velocity decreases, while a reverse result would be obtained at higher temperatures.

What is the next step in this research?
Next we aim to study oil-rubber compatibility and the effect of the aforementioned parameter on rubber processing behavior and other rubber properties.

May 12, 2016

 

Read Latest Issue

Read Latest Issue

Read Latest Issue

Web Exclusives

Goodyear to supply British Truck Racing Championship
Challenges tackled in truck race tire development could lead to the creation of advanced new road tire technologies
Read Now

Interview: Terry Gettys, executive VP of R&D, Michelin Group
The executive VP of R&D on how supplier collaborations are enhancing materials development and why confidentiality is important for business
Read Now

Original equipment development at Giti
Giti experts reveal how the company works in close collaboration with vehicle OEMs to develop bespoke original equipment rubber
Read Now

Conference interview: Mika Lahtinen, Nynas
The Nynas senior advisor and former Nokian Tyres winter tire expert reveals how environmental legislation has impacted on the production of popular tire oils
Read Now

Yokohama unveils iceGuard iG65
Extensive simulation has enabled the development of a special pin shape for improved on-ice performance
Read Now


Supplier Spotlight

Supplier SpotlightWe are building a list of leading suppliers covering all aspects of the tire industry. Want to see your company included? Contact olivia.campbell@ukimediaevents.com for more details.

فروشگاه اینترنتی فروشگاه اینترنتی سیستم همکاری در فروش کانال تلگرام چت روم دانلود فیلم فروشگظ;ه اینترنتی

Submit your industry opinion

Industry BlogDo you have an opinion you'd like to share with the tire technology community? We'd like to hear your views and opinions on the leading issues shaping the industry. Share your comments by sending up to 500 words to rachel.evans@ukimediaevents.com

Submit Your Recruitment Ad

Recruitment AdTo send us your recruitment advertising or to receive information on placing a banner please email olivia.campbell@ukimediaevents.com