Preparation method of high-transmittance self-healing ionic liquid gel with good mechanical properties
An ionic liquid, self-healing technology, applied in the field of preparation of ionic liquid gel, can solve the problems of low tensile strength and elongation at break, insufficient light transmittance of ionic gel, insufficient mechanical properties, etc., and achieve high fracture Elongation, excellent self-healing function, the effect of accelerating the rate of initiation
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[0040] Example 1
[0041] Use 1-ethyl-3-methylimidazole ethyl sulfate as the ionic liquid filling liquid, add N,N-dimethylacrylamide (DMAA) and α-ketoglutarate to it, stir and mix well, Put it into a small flask connected with a nitrogen bottle and a suction tube, alternately perform suction and inflation processes to remove oxygen in the system, then add it to a glass mold or transparent plastic mold, and place it under a UV lamp for 2 hours to cause free radical gathering After the reaction, an ionic liquid gel with a tensile strength of 0.35 MPa, an elongation at break of 3000% and a light transmittance of 94% can be obtained. Among them, DMAA is 33% of the total mass of 1-ethyl-3-methylimidazole ethyl sulfate, DMAA and α-ketoglutarate, and the amount of α-ketoglutarate is 0.5% of the amount of DMAA substance.
Example Embodiment
[0042] Example 2
[0043] Use 1-ethyl-3-methylimidazole ethyl sulfate as the ionic liquid filling liquid, add N-hydroxyethyl acrylamide (HEAA) and 2-hydroxy-methyl phenyl acetone, stir and mix thoroughly, Put it into a small flask connected with a nitrogen cylinder and an exhaust pipe, alternately perform the process of pumping and inflating to remove oxygen in the system, then add it to a glass mold or a transparent plastic mold, and place it under an ultraviolet lamp for 4 hours to get An ionic liquid gel with a tensile strength of 0.38 MPa, an elongation at break of 2800%, and a light transmittance of 93%. Wherein, the amount of HEAA is 36% of the total mass of 1-ethyl-3-methylimidazole ethyl sulfate salt, HEAA and 2-hydroxy-methylphenylacetone. The amount of 2-hydroxy-methyl phenyl acetone is 1% of the amount of the substance of HEAA.
Example Embodiment
[0044] Example 3
[0045] Using 1-ethyl-3-methylimidazole ethyl sulfate as the ionic liquid filling liquid, add monomer and 2-methyl-2-(4-morpholinyl)-1-[4-(methylsulfide) to it Benzyl) phenyl]-1-acetone, stir and mix well, put it into a small flask connected with a nitrogen cylinder and an exhaust pipe, alternately perform exhaust and inflation processes to remove oxygen in the system, and then add the glass mold or In a transparent plastic mold, irradiated under an ultraviolet lamp for 2 hours to obtain an ionic liquid gel with a tensile strength of 0.65 MPa, an elongation at break of 2000%, and a light transmittance of 95%. Among them, the quality of the monomer is 1-ethyl-3-methylimidazole ethyl sulfate salt, monomer, 2-methyl-2-(4-morpholinyl)-1-[4-(methylthio) 45% of the total mass of phenyl]-1-acetone.
[0046] The monomer is a mixture of N,N-dimethylacrylamide (DMAA), N-methylolacrylamide (HMAA) and N-hydroxyethylacrylamide (HEAA) in any ratio.
[0047] The amount of 2-met...
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