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将聚合物的物理老化引入到极化过程中 ,并研究了不同温度下的老化对极化聚合物取向稳定性的影响 .结果表明 ,物理老化可以减少聚合物系统的自由体积 ,使发色团分子的极性方向不易发生改变 ,从而提高了极化聚合物的取向稳定性 ;老化的温度不同 ,所起到的作用也不同 ,老化温度与极化松弛时的环境温度越接近 ,极化衰减越慢 .
The physical aging of polymer was introduced into the process of polarization and the effect of aging at different temperatures on the orientation stability of polarized polymer was studied.The results show that physical aging can reduce the free volume of polymer system, Molecular polarity is not easy to change the direction of polarization to improve the orientation stability of the polymer; aging temperature is different from the role played by the aging temperature and polarization relaxation when the closer the ambient temperature, polarization attenuation The slower.