基于太赫兹波的GF-PPS热老化实验研究  

Experimental study of GF-PPS thermal aging based on terahertz waves

作　　者：占杨彬 林振衡 胡兆坤 王小帆 蒲继雄 Zhan Yangbin;Lin Zhenheng;Hu Zhaokun;Wang Xiaofan;Pu Jixiong(College of Mechanical and Electrical Engineering,Fujian Agriculture and Forestry University,Fuzhou,350000,Fujian,China;New Engineering Industry College,Putian University,Putian,351100,Fujian,China)

机构地区：[1]福建农林大学机电工程学院,福建福州350000 [2]莆田学院新工科产业学院,福建莆田351100

出　　处：《福光技术》2024年第2期57-63,共7页FUJIAN OPTICAL TECHNOLOGY

基　　金：国家自然科学基金项目(62103209);福建省科技厅高校产学合作项目(2021H6038)资助;福建省科技厅高校产学合作项目(2021H6038);莆田市科技项目(2020GJGZ001)资助。

摘　　要：玻璃纤维增强聚苯硫醚(GF-PPS)因其良好的耐高温性能,广泛应用于航空航天等重要领域。针对目前GF-PPS材料热老化程度无法判别的问题,提出运用太赫兹时域光谱的方法对其热老化程度进行鉴别的研究。应用太赫兹时域光谱检测系统对受到200~260℃热老化的材料进行检测,得到其在0.3~1THz之间的太赫兹时域谱和吸收谱。分析发现:GF-PPS太赫兹特征谱段位于被测样品时域谱信号最大值对应时间处延迟27ps,且随着热老化温度增加,GF-PPS太赫兹时域谱的幅值峰峰值增大,太赫兹吸收系数降低,将GF-PPS时域谱的峰峰值参数与热老化温度进行拟合,发现它们之间具有良好的拟合关系,决定系数达到0.98以上。研究结果可应用于GF-PPS材料的太赫兹识别,并为其热老化程度检测研究提供参考。Glass fiber reinforced polyphenylene sulfide(GF-PPS)is widely used in important fields such as aerospace due to its good high temperature resistance.In order to solve the problem that the thermal aging degree of GF-PPS materials cannot be determined,a research on the thermal aging degree of GF-PPS materials is proposed by using the method of terahertz time domain spectroscopy.The terahertz time-domain spectroscopy detection system was used to detect the materials subjected to heat aging at 200~260℃,and the terahertz time-domain spectrum and absorption spectrum between 0.3~1THz were obtained.The analysis shows that the GF-PPS terahertz characteristic spectrum is located at the time delay of 27ps corresponding to the maximum time domain spectral signal of the measured sample,and with the increase of thermal aging temperature,the amplitude peak value of GF-PPS terahertz time domain spectrum increases,and the terahertz absorption coefficient decreases,and the peak-to-peak parameters of GF-PPS time domain spectrum are fited with the thermal aging temperature,and it is found that there is a good fitting relationship between them,and the determination coefficient reaches more than O.98.The results of this study can be applied to the terahertz identification of GF-PPS materials,and provide a reference for the detection of thermal aging degree.

关 键 词：玻璃纤维增强聚苯硫醚 太赫兹时域光谱技术 热老化 无损检测 

分 类 号：TN9[电子电信—信息与通信工程]