CAJ | 학술논문

本文对未添加氧化铈和添加微米氧化铈和添加纳米氧化铈的三种硫化天然橡胶材料先进行高温老化，然后对老化了不同时间的试件进行拉伸试验。对橡胶老化后各个拉伸参数进行分析，得出添加了氧化铈的橡胶材料的定伸应力和杨氏模量变化幅度较小。差热分析结果显示在橡胶材料中添加氧化铈其热降解温度要比未添加的高，而且通过耐老化指数的计算得出添加微米氧化铈的硫化天然橡胶的耐老化指数最大。
본문대미첨가양화시화첨가미미양화시화첨가납미양화시적삼충류화천연상효재료선진행고온노화，연후대노화료불동시간적시건진행랍신시험。대상효노화후각개랍신삼수진행분석，득출첨가료양화시적상효재료적정신응력화양씨모량변화폭도교소。차열분석결과현시재상효재료중첨가양화시기열강해온도요비미첨가적고，이차통과내노화지수적계산득출첨가미미양화시적류화천연상효적내노화지수최대。
In this paper ,the cerium oxide filled vulcanized natural rubber is aged in high tempera-ture ,then analysis the aged specimens for uniaxial tensile performance .By adding different granularity cerium oxide into rubber ,study the different between them about tensile properties .Come to a conclu-sion that stretch stress and young's modulus of cerium oxide filled rubber material has small variation . Results of DSC show that cerium oxide is added in the rubber material the thermal degradation temper-ature is higher than did not add ,and add microns of cerium oxide is higher than nanometer cerium ox-ide .Adding micron cerium oxide vulcanization of natural rubber aging resistant index is the largest .