Preparation method and application of metal-coordinated conductive hydrogel
A conductive hydrogel and metal coordination technology, which is used in the application of repetitive force/pulsation force to test the strength of materials, and the application of stable tension/pressure to test the strength of materials, instruments, etc. It can solve problems that are difficult to meet practical applications, electrical Low chemical sensitivity, poor stability and other problems, to achieve the effect of reducing unmeasurable substances, improving mechanical properties, and no pollution
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0065] 1. Preparation of medicines: Weigh 0.9411g of vinylimidazole, 0.5404g of sodium methacrylate, 0.0093g of N,N-methylenebisacrylamide at room temperature, and place them in a 50mL sample bottle. Then, weigh 0.048g of 2-hydroxy-2-methyl-1-phenylacetone with a 5mL sample bottle, and use a 1000μL pipette to transfer 500μL of deionized water for dilution. Then use a 100 μL pipette to add 50 μL into a 50 mL sample bottle, and stir for 30 minutes on a magnetic stirrer at 800 r / min.
[0066] 2. Inject the mixed solution into a 15*10cm glass splint with a 5mL syringe, and the thickness between the glass plates is 0.1cm. After the liquid was injected, the small bubbles in the glass plate were evacuated, and then the glass plate was placed under an ultraviolet lamp with a wavelength of 365 nm to avoid light for 12 hours. The light source was 10 cm away from the initiator, and the reaction temperature was 37 °C. Remove the hydrogel precursor and store it in a ziplock bag.
[0067]...
Embodiment 2
[0069] The overall operation is the same as that in Example 1, except that different conditions are changed. The specific conditions are shown in Table 1.
[0070] The conditions of the comparative examples are also listed in the table. The prepared samples are numbered according to the examples, the metal-coordinated conductive hydrogels corresponding to Examples 1-11 are recorded as Sample 1-11#, and the metal-coordinated conductive hydrogels corresponding to Comparative Examples 1-6 are recorded as For samples D1#-D6#.
[0071]
[0072]
Embodiment 3
[0074] Tensile strength and rheological analysis were performed on the samples prepared in the above examples and comparative examples. The final result is as follows:
[0075] like figure 1 Shown are the tensile test charts of hydrogels formed after secondary crosslinking of 0.025 mol / L nickel solution under different monomer ratios. 1:0.50 corresponds to the hydrogel prepared in Example 1, 0.95:0.50 corresponds to the hydrogel prepared in Example 2, 0.90:0.50 corresponds to the hydrogel prepared in Example 3, 0.85: 0.50 corresponds to the hydrogel prepared in Example 4, 1.05:0.50 corresponds to the hydrogel prepared in Example 5, and 1.10:0.50 corresponds to the hydrogel prepared in Example 6, which passed the universal material test. It can be seen from the figure that when the monomer ratio is 1:0.5, the hydrogel formed after secondary cross-linking with 0.025mol / L nickel solution has the maximum hard strength during the pulling process, and the effect is obvious.
[0...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More