The influence of ultrasonic exposure on polytetrafluoroethylene structure modified with boron nitride

[摘要] The purpose of study is to state influence patterns of ultrasonic exposure on the density and porosity change of the synthesized polymer composite material based on polytetrafluoroethylene, modified with boron nitride. The density of 5 % boron nitride samples manufactured by ultrasonic pressing is 9% higher than the similar samples manufactured by cold pressing have and this confirms the structure defectiveness results received by electron microscopy. As the result of carried studies it was stated that polymer composite material pressing with ultrasonic vibration is an active technology increasing efficiency of matrix structure modification and affecting significantly the structure formation processes in it.

[发布机构] Omsk State Technical University, Mira ave., 11, Omsk; 644050, Russia^1

[效力级别] 物理学 [学科分类] 力学，机械学

[关键词] Active technologies;Influence patterns;Polymer composite materials;Structure formations;Structure modified;Synthesized polymers;Ultrasonic exposure;Ultrasonic vibration