| Autor: |
Kongkaew W; 1 The Petroleum and Petrochemical College, 26683 Chulalongkorn University , Bangkok, Thailand., Sangwan W; 1 The Petroleum and Petrochemical College, 26683 Chulalongkorn University , Bangkok, Thailand., Lerdwijitjarud W; 2 Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, 65163 Silpakorn University , Bangkok, Thailand., Sirivat A; 1 The Petroleum and Petrochemical College, 26683 Chulalongkorn University , Bangkok, Thailand. |
| Abstrakt: |
Pectin hydrogels were successfully fabricated with various physical crosslinkers and concentrations for soft actuator applications. A small amount of synthesized P2ClAn was added as a dispersed phase into the pectin matrix. The electromechanical properties of the pectin hydrogels and blends were investigated under the effects of electric field strength, ionic crosslinker type and concentration, and P2ClAn concentration. The electromechanical properties of the pectin hydrogel as crosslinked by Fe 2+ were superior to other pectin hydrogels. The pristine pectin hydrogel and the P2ClAn/Pectin hydrogel blended with 0.10%v/v P2ClAn provided the high storage modulus sensitivity values of 8.61 and 14.01, respectively, under the electric field strength of 800 V/mm. The P2ClAn/Pectin hydrogel blend responded to the electric field with higher dielectrophoretic forces, but lower deflections relative to the pristine pectin hydrogel due to the additional P2ClAn polarization and the latter lower rigidity. |
