دراسة تأثير الكاؤولين في تصميم عجنه مطاطية لاطارات الطائرا ت

Abstract

This research aims to use the Kaolin material (which is available, cheap, and can undergoes high temperatures) in the design of the rubber master batch which is able tosatisfy the special requirements those related with the applications of tires used in landand take off of the airplanes, such as: High Abrasion Resistance, Superior Adhesionbetween rubber and metals, Suitable Damping Properties, and Resistance to Swellingand High Temperatures. This research has been carried out by using Hard Air Floated Kaolin with 3 µmparticle size (DIXIE CLAY) in the laboratory of Babylon Tires Company, and theproperties have been measured according to the standards specifications (ASTM). The results showed that: the Adhesion Force has improved when adding Kaolin tothe master batch of Natural Rubber (NR) from 33 N to 190 N, Abrasion Resistance (byusing the weight difference method) has improved from 0.0096 g to 0.0173 g,Rebound Resilience has improved (decreased) from 45% to 68% (i.e. the damping orthe hysterises has increased from 55% to 68%), and at last Resistances to Swelling andAgeing have been improved greatly.