动态力学热分析在芳纶纸中的应用研究

he dynamic mechanical properties of PMIA-Pulp applied paper were investigated. At the same time, the dynamic mechanical properties of DuPont T410 paper were compared. Measurements of the dynamic mechanical properties were carried out on samples of low crystallinity and low orientation over a temperature range from 20 to +500℃ at a frequency of 110 Hz, at a heating rate of 3℃/min. As the temperature from low to high, three different mechanical states with glassy state, rubber state and fluid state were appeared on DMA temperature curve. It responses the different mode of molecular motion. Storage modulus and glass transition peak of DuPont T410 paper are higher than the self-made applied paper. This is mean DuPont T410 Paper has a high resistance to external forces and deformation capacity, good rigidity. It's molecular chain freedom movement difficult and the energy required to move relatively larger.