High-drive-sensitivity silicon rubber-based dielectric elastomer composite material and preparation method thereof
A technology for dielectric elastomers and composite materials, which is applied in the field of high-drive-sensitivity silicone rubber-based dielectric elastomer composite materials and its preparation, can solve the problems of increased and limited drive deformation, and achieve low elastic modulus and excellent preparation process The effect of simplicity and matrix phase stability
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Embodiment 1
[0025] 1) After adding 1.954g of TiO2 with a particle size of 40-60nm into 20ml of tetrahydrofuran and mixing, ultrasonically oscillate for 25 minutes to obtain a well-dispersed titanium dioxide nanoparticle suspension. Add 6.52g of silicone rubber into tetrahydrofuran and stir at 27°C for 85min to obtain a silicone rubber solution.
[0026] 2) Blend the nanoparticle suspension with the silicone rubber solution, increase the stirring temperature, and stir at 45° C. for 120 minutes to obtain the primary mixture of the composite material.
[0027] 3) Dry the composite material primary mixture in an oven at 80° C. for 2.5 hours, take out the composite material primary mixture after removing the solvent and add 0.20 g of tetraethyl orthosilicate and 0.0592 g of dibutyltin dilaurate.
[0028] 4) Place the blend in a mold, press at 12Mpa for 12h at room temperature. A silicone rubber-based dielectric elastomer composite with high actuation sensitivity was obtained.
[0029] The re...
Embodiment 2
[0031] 1) After adding 1.603g of TiO2 with a particle size of 40-60nm into 16ml of tetrahydrofuran and mixing, ultrasonically oscillate for 27 minutes to obtain a well-dispersed titanium dioxide nanoparticle suspension. Add 5.3g of silicone rubber into tetrahydrofuran and stir at 25°C for 45min to obtain a silicone rubber solution.
[0032] 2) Add 1.06g of plasticizer (simethicone) into tetrahydrofuran solvent, and stir at 25°C for 20 minutes to obtain a plasticizer solution; mix the titanium dioxide particle suspension and polymer solution with the plasticizer solution, and heat at 47°C Stir for 120min to obtain the primary mixture of the composite material.
[0033] 3) Dry the composite material primary mixture in an oven at 80° C. for 3 hours, take out the composite material primary mixture after removing the solvent and add 0.1573 g of tetraethyl orthosilicate and 0.0477 g of dibutyltin dilaurate.
[0034] 4) Place the blend in a mold and press at 15Mpa for 11 hours at ro...
Embodiment 3
[0037] 1) After adding 1.378g of TiO2 with a particle size of 40-60nm into 14ml of tetrahydrofuran and mixing, ultrasonically oscillate for 30 minutes to obtain a titanium dioxide nanoparticle suspension. Add 4.6g of silicone rubber into tetrahydrofuran and stir at 30°C for 40min to obtain a silicone rubber solution.
[0038] 2) Add 2.765g of plasticizer (simethicone) into tetrahydrofuran solvent and stir at 26°C for 25min to obtain plasticizer solution; mix titanium dioxide particle suspension and polymer solution with plasticizer solution, Stir for 125min to obtain the primary mixture of composite materials.
[0039] 3) Dry the composite material primary mixture in an oven at 85° C. for 3 hours, take out the composite material primary mixture after removing the solvent and add 0.1383 g of tetraethyl orthosilicate and 0.0412 g of dibutyltin dilaurate.
[0040] 4) Place the blend in a mold and press at 16Mpa for 12 hours at room temperature. A silicone rubber-based dielectri...
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