The Effect of Plant-Based Oils and Cellulose Fillers on The Rheological and Physico-Mechanical Properties of Tire Tread

Abstract

In this study, commercial tire tread which should be as an economical and more environmentally friendly was aimed to be modified by using cellulosic fiber and/or plant-based oil. The ratio of cellulose fiber (from the waste chestnut shell. the waste pistachio shell and pinecone) to carbon black in the manufacture of tire's tread was used as Three plant-based oil (canola. corn and sunflower oil) used as 20.8 phr instead of the aromatic oil the mixture of the tire's tread. The tire treads were prepared by using 10 different mixturev one of them was control and others testing mixture. Rheologiœal tests before vulcanimtion and physico-mechanical tests (tensile strength. elongation at break. tear strength, 300% modulus, hardness, abrasion. density) after vulcanization were applied to these prepared mixtures. Vulcanimtion characteristics were obtained by using a moving die rheometer (1900 C.3min); minimum torque. maximum torque. cure rate, the scorch and cure time of the prepared rubber mixture. All tests were carried out in accordance with the relevant ASTM D standard test procedureeAccording to the test results, the rheological. physical and mechanical properties showed significant changes depending on the natural fillers. The values of the curing time and scorch time were increased while the maximum and minimum torque values were reduced for nrbber samples produced using plant-based oil and/or cellulose fiber.Plant-based oil had higher cure extent values than the cellulose fiber this represents a higher cross-linking degree dunng cure reactioru The measured values of the abrasion and tensile strength were reduced negatively with all types of cellulose fillers. Test results of all of the different types of Plant-based oil were proper in standard values except tear strength.