用动态力学分析技术评价TATB/氟聚物复合材料界面

Evaluation of Interfaces of TATB/Fluoropolymer CompositesUsing Dynamic Mechanical Analysis Technique

在测定四种TATB/氟聚物复合材料的力学损耗基础上 ,利用三相模型和A参数评估这四种复合材料界面。结果表明 :TATB/氟聚物复合材料界面的分子间作用主要是范德华力 ,并且这种力不能有效阻止该界面的滑移。同时 ,还存在着另一种影响界面力学性能的作用机制 ,这种机制与氟聚物的相态相关。因此改变有关相态可能是提高TATB/氟聚物复合材料力学性能的一条有效途径。

Mechanical loss curves of four TATB/Fluoropolymer composites have been tested.On the basis of these experiments and in terms of three phased model,evaluation of interfaces of the four composites are made.The results show that molecular interaction at interface of TATB/Fluoropolymer composite is mainly Van der Waals force,and this force can not resist interfacial slippage effectively.Meantime,it is also found that there is another interactive mechanism,which influenes on interfacial mechanical property,at this composite′s interface.The mechanism is bound up with the phase state of fluoropolymer.Therefore,to change relative phase state is a possible and available approach to improve mechanical property of the TATB/Fluoropolymer Composite.