耐海水腐蚀支座用橡胶的研究  

Research on seawater corrosion resistant bearing rubber

作　　者：陈志 谷立宁 张洪勇 赵贵英 庞二红 张学文 潘舒芳 苏伟 Chen Zhi;Gu Lining;Zhang Hongyong;Zhao Guiying;Pang Erhong;Zhang Xuewen;Pan Shufang;Su Wei(Sino Rubber Technology Co.,LTD,Hengshui 053200,Hebei,China)

机构地区：[1]衡橡科技股份有限公司,河北衡水053200

出　　处：《橡塑技术与装备》2022年第9期28-33,共6页China Rubber/Plastics Technology and Equipment

摘　　要：以天然橡胶为基体,氯磺化聚乙烯作为改性填料制备出了耐海水橡胶支座专用橡胶。研究了氯磺化聚乙烯添加量对耐海水橡胶支座橡胶的基本性能的影响,并且通过加速老化实验研究了改性后支座橡胶在不同温度和海水中断裂伸长率随老化时间的变化规律,得到了断裂伸长率与时间的数学关系模型,并且通过模型预测了该橡胶的使用寿命。研究结果表明,通过天然橡胶与氯磺化聚乙烯并用增加了橡胶支座的耐臭氧性、压缩永久变形性能和耐低温性;随着海水浸泡时间的增加,改性后橡胶质量变化率呈现增加趋势;在不同温度和海水中断裂伸长率与老化时间呈现指数关系,预测改性橡胶分别在空气和海水中使用寿命为54和48年左右,使用寿命均比普通支座胶料分分别提升了8年和5年。Using natural rubber as matrix and chlorosulfonated polyethylene as modified filler,a special rubber for seawater-resistant rubber bearing was prepared.In this paper,the effect of chlorosulfonated polyethylene addition on the basic properties of seawater-resistant rubber was studied.The change law of elongation at break of modified bearing rubber with aging time at different temperatures and seawater was studied by accelerated aging experiments.Through experiments,the mathematical relationship model of elongation at break and time was obtained,and the service life of the rubber was predicted through the model.The research results show that the ozone resistance,compression set performance and low temperature resistance of the rubber bearing are increased by the combination of natural rubber and chlorosulfonated polyethylene.With the increase of seawater immersion time,the change rate of modified rubber showed an increasing trend.The elongation at break shows an exponential relationship with aging time at different temperatures and seawater.The service life of the modified rubber in air and sea water is about 54 and 48 years,respectively,and the service life is 8 years and 5 years higher than that of ordinary bearing rubber,respectively.

关 键 词：氯磺化聚乙烯 耐久性 橡胶支座 

分 类 号：TQ330.7[化学工程—橡胶工业]