受阻酚AO-60用量对天然橡胶阻尼性能的影响  

Effect of amount of hindered phenol AO-60 on damping performance of natural rubber

作　　者：谭博文 晏苗 许仕强 吴明生[1,2] TAN Bowen;YAN Miao;XU Shiqiang;WU Mingsheng(School of Polymer Science and Engineering,Qingdao University of Science and Technology,Key Laboratory of Rubber-plastics,Ministry of Education,Qingdao 266042,China;Zhejiang Tiantie Industrial Co.,Ltd.,Taizhou 317299,China)

机构地区：[1]青岛科技大学高分子科学与工程学院橡塑材料与工程教育部重点实验室,山东青岛266042 [2]浙江天铁实业股份有限公司,浙江台州317299

出　　处：《弹性体》2023年第3期64-67,81,共5页China Elastomerics

基　　金：山东省重点研发计划项目(2019GGX102018)。

摘　　要：研究了受阻酚AO-60的用量对天然橡胶硫化特性、物理机械性能及动态性能的影响。结果表明,NR中添加大量的AO-60,会干扰硫磺硫化过程,降低交联程度和硫化速率;随着AO-60用量增大,NR硫化胶的硬度、定伸应力和回弹性明显下降,拉伸强度、撕裂强度在AO-60用量为10~15份(质量份)时较高;在玻璃化转变区,损耗因子随着AO-60用量增加而下降,阻尼峰加宽;当温度高于-30℃时,损耗因子(tanδ)随着AO-60用量增加而增大;NR硫化胶的静刚度随着AO-60用量增加而下降,动静刚度比则上升。This article investigate the effect of the amount of hindered phenol AO-60 on the vulcanization characteristics,physical properties and dynamic properties of natural rubber.It was found that adding a large amount of AO-60 would interfere with the sulfur curing process and reduce the crosslinking degree and curing speed;With the increase of AO-60 content,the hardness,modulus and recovery performance have a marked decline while the tensile strength and tear strength were higher when the dosage of AO-60 was 10%~15%;In the glass transition region,the loss factor decreases and the damping peak widened with the increase of AO-60 dosage;When the temperature is higher than-30℃,the loss factor increased with the increase of AO-60 content;It was found that static stiffness incerases with the increase of the content of AO-60,while the the ratio of dymical stiffness and static stiffness had an opposite trend.

关 键 词：天然橡胶 阻尼 损耗因子 动静刚度比 

分 类 号：TQ332.6[化学工程—橡胶工业]