聚苯硫醚的动态力学行为研究

本工作借助TBA技术研究了聚苯硫醚(PPS)的动态力学行为。结果表明,PPS的端基和分子量,热处理方式(固相处理或熔融处理)和处理时间,试样的热历史(淬火或退火)及制辫子所用的纤维的表面性质(玻璃纤维、碳纤维和石墨纤维及其表面处理)等因素对其动态力学行为均有影响。这些动态力学行为特征的变化与这些因素所引起的PPS的分子结构和超分子结构的变化有关。

STUDIES OF THE DYNAMIC MECHANICAL BEHAVIOR OF POLYPHENYLENE SULFIDE

By using the torsional braid analysis (TBA), We have investigated the dynamic mechanical behavior of polyphenylene sulfide (PPS). The experimental results showed that a variety of factors have effects on the dynamic mechanical behavior of PPS with different molecular weight and end groups. These factors include the modes of heat treatment (solid-state Curing or melt-state curing), heating time, heat history of Samples (quenching or annealing) and the surface properties of fibres which were used as braids (glass fibre, carbon fibre, and graphite fibre, or their surface treatment). The changes in dynamic mechanical characteristics are associated with the variation of the molecular structure and supermolecular structure of PPS caused by the factors mentioned above.