Vibration control is a common and vital issue in daily life and production. Semi-active vibration reduction technology can adapt to vibration changes, achieving the aim of reducing vibration by changing parameters such as rigidity and damping in real time. Therefore, it can be widely applied to various fields including automobile industry, construction industry, aerospace industry and etc. Electrorheological (ER) elastomer is one of the ideal smart materials chosen to prepare semi-active shock absorber. Because of ER elastomer can undergo rapid, reversible and consecutive changes under the excitation of an applied electric field, ERE has the advantages of being easily loaded in electric fields, flexible shapes and low energy consumption. We have invented TiO₂ particles inlaid with nano-carbon, which can not only generate strong ER effects but is also resistant to high temperature and wear. Therefore, it can be mixed with rubber and vulcanized at high temperatures to obtain with high mechanical strength and high ER effect. TiO₂ particles inlaid with nano-carbon are used as dispersant. Natural rubber with excellent mechanical properties is chosen as matrix. Cycloalkane oil is used as plasticizer. The three materials are vulcanized after being mixed with each other. Then, we have prepared ERE whose shear modulus increased by four times under an electric field strength of 2 kV/mm.

Electrorheological elastomer,TiO2,Natural rubber,Shear modulus