太赫兹科学与电子信息学报2025，Vol.23Issue(2)：102-108,7.DOI:10.11805/TKYDA2024217
太赫兹光谱检测热塑性聚氨酯弹性体的热稳定性
Thermal stability of thermoplastic polyurethane elastomer detected by terahertz spectroscopy
摘要
Abstract
Thermal stability is a key indicator for polymeric materials.Using Terahertz Time-Domain Spectroscopy(THz-TDS)technology combined with a temperature control device,two types of thermoplastic polyurethane elastomers(TPU)solid samples are tested.At room temperature,there are differences in the terahertz absorption coefficients and refractive index values of different types of TPU.During the process of heating from 20℃to 160℃,as the temperature increases,the terahertz absorption coefficient gradually increases,while the refractive index decreases.The turning point of the linear fit corresponds to the reported Vicat transition temperature of the material,and the sample with higher thermal stability maintains its optical constants more stable after heating and cooling.The research results indicate that terahertz spectroscopy technology can provide a new approach for detecting the thermal stability of polymeric materials.关键词
太赫兹光谱/热塑性聚氨酯弹性体(TPU)/吸收系数/介电常数/热稳定性Key words
terahertz spectroscopy/Thermoplastic Polyurethane elastomer(TPU)/absorption coefficient/dielectric constant/thermal stability分类
物理学引用本文复制引用
王君博,张华,汤冬云,颜识涵..太赫兹光谱检测热塑性聚氨酯弹性体的热稳定性[J].太赫兹科学与电子信息学报,2025,23(2):102-108,7.基金项目
重庆市万州区科技计划资助项目(wzstc-20220308) （wzstc-20220308）
