北京合众创业技术有限公司

Effect of mixer reclaiming process on devulcanization of waste tire rubber powder

北京合众创业技术有限公司（BUFT）是北京市中关村高新技术企业。2006年至2013年连续多年被评为北京市西城区科技先进单位。2008年,2013年通过ISO9001认证。主要产品：子午线轮胎氮气硫化技术和轮胎氮气硫化供氮系统。该系统是包含变压吸附（PSA）制氮装置,低温空分制氮装置,氮气回收装置,应急补充装置,增压,稳压功能的完整系统。并为轮胎公司量身定做了计算机管理系统,时时监督记录系统的运行情况。打印运行曲线,故障记录和日,月,年报表。在安徽、山东、北京、上海、

This paper describes the effect of mixer reclaiming process on the reclaiming efficiency of wasted tire rubber powder. The crosslink density, sol fraction, Mooney viscosity, mechanical properties and dynamic mechanical properties of reclaimed rubber were investigated. The results showed that with the increase of reaction temperature, the sol fraction of the reclaimed rubber increased and the crosslink density decreased. It is calculated according to horikx theory that reclamation has mainly occurred through crosslink scission and the reaction temperature and time had almost no influence on bond breaking type. With the increase of reaction temperature, the scorch time（tsl） and recurring time（t90） of reclaimed rubber showed a trend of gradually increase, and the tensile strength decreased, the hardness value changed little.