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International Journal of Polymer Science
Volume 2015, Article ID 825287, 7 pages
Research Article

Experiment Research on Bonding Effect of Poly(lactic-co-glycolic acid) Device by Surface Treatment Method

1School of Mechanical Engineering, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an 710049, China
2School of Nano-Science and Nano-Engineering (Suzhou), Collaborative Innovation Center of Suzhou Nano Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China

Received 4 September 2014; Accepted 21 December 2014

Academic Editor: Long Yu

Copyright © 2015 Xiaopeng Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


According to the low temperature and high effective bonding problem of microdevices made of degradable polymer PLGA, chemical, plasma, and UV irradiation method are used to study the experimental surface treatment of PLGA films and microdevices bonding process. The results show that all three methods can reduce the surface contact angle of PLGA films, the contact angle increases with time at room temperature, and the PLGA films contact angle is almost unchanged under refrigeration. The PLGA film bonding temperature is significantly reduced after UV irradiation, and the bonding interfaces also generate diffusion cross linking layer are dense and uniform.