摘要
通过红外光谱分析、加速热老化试验、热失重升温试验和热失重恒温试验,对阻尼胶带的老化过程进行了分析,并建立了寿命方程。红外光谱结果表明,老化后样品次甲基数量降低、羟基和羰基数量增加,有明显的氧化现象。根据加速热老化试验数据进行寿命预测,25℃、70℃下阻尼胶带的使用寿命分别为368 a和1.14 a;根据热失重升温试验数据进行寿命预测,25℃、70℃下阻尼胶带使用寿命分别为138年和0.9年;根据热失重恒温试验数据进行寿命预测,25℃、70℃下阻尼胶带使用寿命分别为1206年和4年。试验证明,阻尼胶带使用寿命可以满足现场使用要求。
The aging process of damping tape was analyzed by infrared spectrum analysis,accelerated thermal aging test,thermogravimetric heating test and thermogravimetric constant temperature test,and the life equation was established as well.The results of infrared spectrum showed that the number of methyls decreased,the number of hydroxyl and carbonyl groups increased in aging samples,and there was also an obvious oxidation.According to the accelerated thermal aging test data,the service life of the damping tape at 25℃and 70℃was 368 a and 1.14 a,respectively.According to the life prediction of the thermogravimetric temperature rise test data,the service life of the damping tape at 25℃and 70℃was 138 a and 0.9 a,respectively.According to the thermogravimetric constant temperature test data,the service life of the damping tape at 25℃and 70℃was 1206 a and 4 a,respectively.The test proves that the service life of the damping tape can meet the requirements of field use.
作者
王兆旭
徐超
高明
陈梦
毛昆朋
WANG Zhaoxu;XU Chao;GAO Ming;CHEN Meng;MAO Kunpeng(China Academy of Railway Sciences,Beijing 100081,China;Metals&Chemistry Research Institute,China Academy of Railway Sciences Co.,Ltd.,Beijing 100081,China)
出处
《粘接》
CAS
2024年第12期5-8,13,共5页
Adhesion
基金
中国铁道科学研究院集团有限公司科研项目(项目编号:AJG22Y280)。
