Micro-fluidic chip for viscosity testing, and preparation method
A technology of a microfluidic chip and a manufacturing method, which are applied in the process of producing decorative surface effects, the manufacture/assembly of piezoelectric/electrostrictive devices, and measurement devices, etc., can solve the problems affecting material deformation, limited deformation, There are no problems, such as strong operability and simple preparation process.
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[0079] Example one:
[0080] 1.1 Preparation of PVDF nanofibers by electrospinning
[0081] 1.1.1 The configuration of PVDF precursor solution: mix dimethylformamide (DMF) and acetone in a ratio of 30%:70% by volume and stir evenly; according to the ratio of PVDF concentration of 0.12g / ml Add PVDF powder to the mixture of DMF and acetone, and seal and stir for 60 minutes at 60°C until the entire solution is clear and transparent.
[0082] 1.1.2 Electrospinning: The PVDF precursor prepared in step 1.1.1 is sucked into the syringe, and the syringe is installed on the micro syringe pump, and then the syringe needle is connected to the positive pole of the DC voltage source and attached to the receiving electrode plate. Two pieces of aluminum foil are connected to the negative electrode of the DC voltage source; the direction of the needle is perpendicular to the surface of the receiving plate, the distance between the needle and the receiving plate is 15cm, the voltage of the DC voltag...
Example Embodiment
[0104] Embodiment two:
[0105] 2.1 Preparation of PVDF nanofibers by electrospinning
[0106] 2.1.1 The configuration of PVDF precursor solution: mix dimethylformamide (DMF) and acetone at a volume percentage of 30%:70% and stir evenly; according to the ratio of PVDF concentration of 0.12g / ml Add PVDF powder to the mixture of DMF and acetone, and seal and stir for 60 minutes at 60°C until the entire solution is clear and transparent.
[0107] 2.1.2 Electrospinning: The PVDF precursor prepared in step 2.1.1 is sucked into the syringe, and the syringe is installed on the micro syringe pump, and then the syringe needle is connected to the positive pole of the DC voltage source and attached to the receiving plate. Two pieces of aluminum foil are connected to the negative electrode of the DC voltage source; the direction of the needle is perpendicular to the surface of the receiving plate, the distance between the needle and the receiving plate is 15cm, the voltage of the DC voltage sou...
Example Embodiment
[0129] Embodiment three:
[0130] 3.1 Preparation of PVDF nanofibers by electrospinning
[0131] 3.1.1 The configuration of PVDF precursor solution: mix dimethylformamide (DMF) and acetone in a ratio of 30%:70% by volume and stir evenly; according to the ratio of PVDF concentration of 0.12g / ml Add PVDF powder to the mixture of DMF and acetone, and seal and stir for 60 minutes at 60°C until the entire solution is clear and transparent.
[0132] 3.1.2 Electrospinning: The PVDF precursor prepared in step 3.1.1 is sucked into the syringe, and the syringe is installed on the micro-syringe pump, and then the syringe needle is connected to the positive pole of the DC voltage source and attached to the receiving plate. Two pieces of aluminum foil are connected to the negative electrode of the DC voltage source; the direction of the needle is perpendicular to the surface of the receiving plate, the distance between the needle and the receiving plate is 15cm, the voltage of the DC voltage sou...
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