Zhang Xiansheng, Chang Tianying, Cui Hongliang, Liu Lingyu, Li Yizhang. Terahertz Dielectric Spectra for Thermal Oxygen Aging of Natural Rubber[J]. Chinese Journal of Lasers, 2020, 47(12): 1214001
- Chinese Journal of Lasers
- Vol. 47, Issue 12, 1214001 (2020)
Fig. 1. Structural diagram of poly-isoprene molecule and simplified vulcanization structure
Fig. 2. Dielectric constant curves of unaged rubber sample
Fig. 3. Partially aged samples
Fig. 4. Terahertz dielectric constant curves during thermal oxygen aging of samples. (a)Real part; (b) imaginary part
Fig. 5. Dielectric constant curves at 1.0THz frequency point. (a) Real and imaginary parts of dielectric constant versus aging time; (b) average slope of real part curve of dielectric constant versus aging time
Fig. 6. Fitted imaginary parts of dielectric constants
Fig. 7. Distribution of resonant frequency points obtained by fitting
Fig. 8. Real part of dielectric constant at zero frequency, real part of dielectric constant at optical frequency, and dielectric strength
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Table 1. Ingredients of samples and their contents
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