文章摘要
Thermal Field Distribution and Interface Characteristics of Multilayer Rubber Composite during Microwave Heating
Received:January 09, 2020  Revised:January 09, 2020
DOI：10.12136/j.issn.1000-890X.2020.06.0415
Key Words: multilayer rubber composite；finite-difference time-domain method；microwave heating；thermal field distribution；interface characteristics
Author NameAffiliationE-mail
ZHU Shanliang* Qingdao University of Science and Technology zhushanliang@qust.edu.cn 
LI Tao Qingdao University of Science and Technology  
GU Yuchen Qingdao University of Science and Technology  
LI Chengcheng Qingdao University of Science and Technology  
CHEN Hailong Qingdao University of Science and Technology  
WANG Dongxu Qingdao University of Science and Technology  
LI Qingling Qingdao University of Science and Technology  
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Abstract:
      One-dimensional unsteady finite element heating PDE model based on Maxwell equation was established for microwave heating of multilayer rubber composites under different wave sources. Taking SBR material and NBR material complexing as examples，the effects of material thickness and microwave power on the temperature field and interface characteristics of multilayer（two-layer）rubber under single/double wave sources were simulated by the finite-difference time-domain method. The results showed that the change of microwave power would affect the temperature distribution of multilayer rubber composite. The microwave amplitude would change slightly at the interface of multilayered rubber materials. The rubber materials with small dielectric loss should be directly exposed to the microwave source，which was conducive to the penetration of microwave. The thickness of each rubber layer should be controlled below the critical penetration depth. Compared with single source microwave heating，use of multi-source microwave heating could improve the heating uniformity. The model validity of this study was verified by comparison with the results of the traditional finite element model.
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