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Interdiffusion analysis based on novel ultrasonic welding method with inserting interposed sheet
Author(s) -
Zhang Guohong,
Qiu Jianhui
Publication year - 2011
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.21788
Subject(s) - reptation , materials science , welding , diffusion , displacement (psychology) , composite material , ultrasonic sensor , surface finish , mechanics , mechanical engineering , polymer , thermodynamics , acoustics , physics , psychology , engineering , psychotherapist
The molecular movement process has been developed according to previous study on the novel ultrasonic welding method of inserting interposed sheet and its apparatus. Based on the classical reptation theory, a hauling theory of interdiffusion has been proposed which can accelerate molecular movement and interpenetration surprisingly. Hauling effect can promote the interdiffusion but has no effect on the interpenetration length. We involve a coefficient k u to modify the relationship between the reptation time before and diffusion time, which can be related to the relative displacement and friction coefficient among the molecular in terms of the equations. The surface roughness, welding time, and welding force have been experimented and resulted uniformly in which the diffusion has been accelerated from our experiments. POLYM. ENG. SCI., 2011. © 2010 Society of Plastics Engineers