Synthesis and Properties of Polyurethane-based Actuator with Poly(dimethyl silozane)
This paper investigated the use of electrostfictive polymers with compliant electrodes as a means of actuator. In many electrostrictive materials, especially polyurethane (PU) can produce large deformation and force because of its low elastic modulus. The electromechanical response is mainly due to Maxwell stress effect and electrostriction effect. When a thin film of dielectric elastomer is applied to an electric field, it will experience Maxwell stress caused by interactions of free charge between the electrodes and electrostriction caused by the reorientation of polar phase in the material. In this work, PU was composed of the soft segment with poly(dimethyl siloxane) (PDMS) and the hard segment with 4, 4-diphenylmethane diisocyanate. Also the hard segment content of synthesized PU was controlled at 20, 25, 30, and 35wt%. To conclude, mechanical properties increased with the increase in hard segment contents. However actuation test showed that the deformation was decreased as hard segment contents increased.
Actuators Dielectric polymer Polyurethane Electrostriction Electroactive polymer
Nam-Ju Jo Do-Hee Lim Young-Min Song Geong Mi Bark Won-Ki Lee
Department of Polymer Science and Engineering, Pusan National University,San30, Jangjeon-dong, Geumj Division of Chemical Engineering, Pukyong National University, Yongdang-Dong, Nam-Gu, Busan 608-739,
国际会议
10th International Symposium on Eco-Materials Processing and Design(第10届国际生态材料加工与设计研讨会)
西安
英文
299-302
2009-01-13（万方平台首次上网日期，不代表论文的发表时间）