Cover Image

Green retreaded tyre based on epoxidised natural rubber (ENR) blends in urban buses

Ahmad Kifli Bin Che Aziz, Siti Salina Sarkawi, Rohaidah Abdul Rahim

Abstract


Utilization of Epoxidised Natural Rubber (ENR) in tyre tread compounds significantly improved wet grip performance and reduce rolling resistance of tyre. The blend of ENR with Polybutadiene Rubber (BR) shows a promising result for laboratory abrasion test however to date no direct correlation with the actual performance on the road. This study is conducted to evaluate on the road performance of ENR/BR blends tread compounds on retreaded tyre fitted on Malaysia’s urban buses. Two main routes which subjected with heavy traffic in Kuala Lumpur city center were selected for the test and a total of 10 buses were selected for this study. Each buses of rear drive axles was fitted with 2 units of ENR blends retreaded tyres on one side and 2 units of standard Natural Rubber (NR) blended with BR retreaded tyres formulation on the opposite side as comparison with both of tyre size of 275/70R22.5. The wear performance of the tyre tread was studied for 3 to 6 months and data collection of tread depth was done every two weeks interval. From the study, it was found ENR blends retreaded tyre formulation performed better wear resistance than standard retreaded tyres formulation. The mileage percentage of ENR tread compounds was found 30 % to 40% better than standard retreaded tyre formulation for both selected routes.


Keywords


Keywords: epoxidised natural rubber; retreaded tyre; wear

Full Text:

PDF

References


P.A. Ita, Filler Requirements In the Tire Industry: Carbon Black & Precipitated Silica. 2005. Tire Technology Expo & Conference 2005, Koln Messe, Cologne, Germany

M.-J.Wang, Billerica, 2008, Effect of Filler-Elastomer Interaction on Tire Tread Performance Part II. Raw Materials and Applications. KGK January/February 2008, 33-42

Chanvoot Koolhiran, James L. White, 2000. Comparison of Intermeshing Rotor and Traditional Rotors of Internal Mixers in Dispersing Silica and Other Fillers. Journal of Applied Polymer Science, 78:1551–1554

Cataldo F., 2002. Preparation of Silica-Based Rubber Compounds without the Use of a Silane Coupling Agent through the Use of Epoxidized Natural Rubber, Macromolecular Materials and Engineering, 287:348-352.

George K.M., J.K. Varkey, B. George, S. Joseph, K.T. Thomas, and N.M. Mathew, 2006. Physical and Dynamic Mechanical Properties of Silica Filled Nitrile Rubber Modified with Epoxidized Natural Rubber, Elastomere und Kunststoffe, KGK Oktober 2006, 544-549.

Naohiko Kikuchi, Kazuo Hochi, Takuya Horuguchi. 2007. Eco Tire. U.S. Patent No. 7275572

MS224:2005, AMD. 2010 Retreaded Pnuematic Rubber Tyres for Passenger Cars and Commercial Vehicles – Specification (Second Reversion)

T. Johnson, Sabu Thomas, 1999, Natural rubber/Epoxidised Natural Rubber-25 blends: morphology, transport phenomena and mechanical properties, Journal of Materials Science 34, 3221–3239

Kima & Byung Kyu Kima, 1997, Natural rubber blends with epoxidized natural rubber, Journal of Macromolecular Science, Part B: Physics, Volume 36, Issue 5.

Stuart Cook, Andrew. V. Chapman, Andrew J. Tinker and L. Oleksik, 2007, Preferential Loacation of Silica Filler in ENR/BR and ENR/NR blends for Tire Tread Applications, Fall 172nd Technical Meeting of the Rubber Division of the American Chemical Society, Inc. Cleveland, OH October 16-18.

Wanvimon Arayapranee, 2012, Rubber Abrasion Resistance, Abrasion Resistance of Materials, Dr Marcin Adamiak 147-166

Alan G. Veith, 1980, A Review of Important Factors Affecting Treadwear, Rubber Chemistry and Technology, Volume 65, 601-658

The Maintenance Council, 1994, Radial Tire Conditions Analysis Guide – A Comprehensive Review of Tread Wear and Tire Conditions, 109-139

Pamela Martin, Stuart Cook and Paul Brown, 2015, Visualising Tread Wear, 4th International Tyre Colloquium

NHTSA Tire Fuel Efficiency Consumer Information Program Development: Phase 2 – Effects of Tire Rolling Resistance Levels on Traction, Treadwear and Vehicle Fuel Economy, 2009


Refbacks

  • There are currently no refbacks.


Call for Submissions

We welcome submissions for the coming issue that will be officially published in March 2022. We are committed to providing results of reviewing within two weeks, and publishing the paper within one month from the submission date (subjected to responses by authors). This means accepted papers will be available online even before the issue is published officially.

Publons Partners

Journal of Polymer Science and Technology (JPST) is now one of Publons Partners. This means biodata of reviewers in Publons will be automatically updated once reviewing on articles submitted to JPST is completed (subjected to terms and conditions).

How to promote journal articles

Promoting your journal article is imperative to maximise the exposure, enhance the discoverability and increase engagement with readers and other academics. Together with the publisher, as an author, you can help to promote your newly published articles via the following:

1) Institutional webpage.
Provide the link of your latest article in your institutional website. The webpage visitors who view your profile will be able to see your latest research and publications.

2) Social media.
The rise of the social media has also profoundly affected the publishing fraternity. More and more users have chosen the social media platforms as a way of sharing. Social media sharing helps foster convenient dissemination of information, which can be achieved within a short time. You can share your article in major online social media platforms including Twitter, Facebook, LinkedIn and so on.

3) Utilise scholarly networking and reference platforms.
A scholarly or academic networking platforms such as Academia.edu, MyNetResearch, ResearchGate, Mendeley and so on are indeed useful as they help bring scholars of common areas of expertise close together.

4) Press Releases.
If your article involves a new, significant or important discovery, consider linking up with media organisations for a press release. This brings your work to the mainstream media.

5) Blog.
If you keep a personal blog, you can get your blog readers updated with the list of your most recently published articles and the development in your area of research. Linking your article in your personal blog can vastly enhance the discoverability. Discuss briefly about the article and how the users might benefit from it.

6) Add to reading list or assignment.
Add your article (or the journal your article is published) as essential reading to your students. You may also create related assignments, e.g. review of the article, or have them discussed about the write up in class.

7) Add to your signature.
Announce your latest publication underneath your signature. Provide a link where the article can be downloaded/viewed.