High-strength tear-resistant conductive hydrogel suitable for friction nano-generator and preparation and application of high-strength tear-resistant conductive hydrogel
A conductive hydrogel and nanogenerator technology, applied in the direction of triboelectric generators, can solve the problems of short service life and poor mechanical properties, and achieve the effects of enhancing mechanical properties, prolonging service life, and avoiding damage.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0048] Add 0.3g soluble starch to 3.7mL dimethyl sulfoxide, add 1mL hydroxyethyl methacrylate, 0.033g ammonium persulfate, 0.050g N,N'-methylenebisacrylcystamine, 50μN,N, N',N'-tetramethylethylenediamine, stir until completely dissolved, and obtain a uniform and transparent gel prepolymerization solution. The prepolymerization solution was injected into a pair of glass sheets containing silica gel molds, and the organic oil gel was obtained by reacting at room temperature for 24 h. The organogel was placed in a 1M sodium citrate solution for solvent replacement to obtain a high-strength tear-resistant conductive hydrogel.
[0049] like figure 1 As shown, after freeze-drying treatment of the high-strength tear-resistant conductive hydrogel sample of this embodiment, the scanning electron microscope image of the sample has a dense polymer network and uniform pore size distribution.
[0050] figure 2 Shown is the tensile curve of the high-strength tear-resistant conductive hy...
Embodiment 2
[0053] Add 0.4g soluble starch to 3.6mL dimethyl sulfoxide, add 1mL hydroxyethyl methacrylate, 0.033g ammonium persulfate, 0.050g N,N'-methylenebisacrylcystamine, 50μN,N, N',N'-tetramethylethylenediamine, stir until completely dissolved, and obtain a uniform and transparent gel prepolymerization solution. The prepolymerization solution was injected into a pair of glass sheets containing silica gel molds, and the organic oil gel was obtained by reacting at room temperature for 24 h. The organogel was placed in a 1M sodium citrate solution for solvent replacement to obtain a high-strength tear-resistant conductive hydrogel. The obtained gel had a tensile modulus of 0.67 MPa, a compressive modulus of 0.95 MPa, and an ionic conductivity of 5.53 mS / cm.
[0054] like Figure 5 As shown, the high-strength tear-resistant conductive hydrogel of this embodiment has a certain tear resistance, and the breaking energy is 7.45kJ / m 2 . When used as the electrode material of the triboelec...
Embodiment 3
[0059] Add 0.2g soluble starch to 3.8mL dimethyl sulfoxide, add 1mL hydroxyethyl methacrylate, 0.033g ammonium persulfate, 0.050g N,N'-methylenebisacrylcystamine, 50μLN,N, N',N'-tetramethylethylenediamine, stir until completely dissolved, and obtain a uniform and transparent gel prepolymerization solution. The prepolymerization solution was injected into a pair of glass sheets containing silica gel molds, and the organic oil gel was obtained by reacting at room temperature for 24 h. The organic oil gel was placed in a 1M sodium citrate solution for solvent replacement to obtain a high-strength tear-resistant conductive hydrogel. The obtained gel had a tensile modulus of 0.42 MPa, a compressive modulus of 0.52 MPa, and a fracture energy of 5.54 kJ / m 2 , the ionic conductivity is 3.61mS / cm.
PUM
| Property | Measurement | Unit |
|---|---|---|
| Tensile modulus | aaaaa | aaaaa |
| Diameter | aaaaa | aaaaa |
| Compression modulus | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More