Shape memory intrinsic type self-repairing material as well as preparation method and application thereof
A self-healing material and intrinsic type technology, applied in the field of intelligent polymer materials, can solve problems such as the depletion of repairing agent, and achieve the effect of high repair rate, simple repair process, and high repair efficiency
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[0036] Example 1
[0037] Add 15 parts of polyε-caprolactone diol monomer with a number average molecular weight of 1500 and 3.5 parts of hexamethylene diisocyanate into a 250ml three-neck flask with mechanical stirring, and react at 65°C with tetrahydrofuran as a solvent Add 4.3 parts of styrene-butadiene-styrene block copolymer and 1 part of multi-walled carbon nanotubes with a diameter of 10-20nm for 1h, stir at 65℃ for 1h, and then add 3 parts of 2-(4-hydroxyl -2,2,6,6-Tetramethylpiperidine-1-oxy)-N-(2-hydroxyethyl)-2-methylpropionamide, 0.1 part of 2-methyl-1-(4-methyl Thiophenyl)-2-morpholinyl-1-acetone and 0.7 parts of trimethylolpropane tris(3-mercaptopropionic acid) ester were reacted at 65°C for 0.5h. The resulting mixed solution was sonicated for 10min and poured into a rectangle In the mold, the tetrahydrofuran was removed at 60°C to form a sheet with a thickness of about 1 mm. The obtained rectangular sheet was heated to 60°C and stress was applied to make the rect...
Example Embodiment
[0038] Example 2
[0039] Add 20 parts of polyε-caprolactone diol monomer with a number average molecular weight of 2000 and 3.5 parts of hexamethylene diisocyanate into a 250ml three-necked flask with mechanical stirring, and react at 65°C with tetrahydrofuran as a solvent 1h, add 5.3 parts of styrene-butadiene-styrene block copolymer and 1.2 parts of multi-walled carbon nanotubes with a diameter of 10-20nm, stir at 65℃ for 1h, and then add 3 parts of 2-(4-hydroxyl -2,2,6,6-Tetramethylpiperidine-1-oxy)-N-(2-hydroxyethyl)-2-methylpropionamide, 0.1 part of 2-methyl-1-(4-methyl Thiophenyl)-2-morpholinyl-1-acetone and 0.7 parts of trimethylolpropane tris(3-mercaptopropionic acid) ester were reacted at 65°C for 0.5h. The resulting mixed solution was sonicated for 10min and poured into a rectangle In the mold, the tetrahydrofuran was removed at 60°C to form a sheet with a thickness of about 1 mm. The obtained rectangular sheet was heated to 60°C and stress was applied to make the re...
Example Embodiment
[0040] Example 3
[0041] Add 30 parts of polyε-caprolactone diol monomer with a number average molecular weight of 3000 and 3.5 parts of hexamethylene diisocyanate into a 250ml three-neck flask with mechanical stirring, and react at 65°C with tetrahydrofuran as a solvent 1h, add 7.3 parts of styrene-butadiene-styrene block copolymer and 1.7 parts of multi-walled carbon nanotubes with a diameter of 10-20nm, stir at 65℃ for 1h, and then add 3 parts of 2-(4-hydroxyl -2,2,6,6-Tetramethylpiperidine-1-oxy)-N-(2-hydroxyethyl)-2-methylpropionamide, 0.1 part of 2-methyl-1-(4-methyl Thiophenyl)-2-morpholinyl-1-acetone and 0.7 parts of trimethylolpropane tris(3-mercaptopropionic acid) ester were reacted at 65°C for 0.5h. The resulting mixed solution was sonicated for 10min and poured into a rectangle In the mold, the tetrahydrofuran was removed at 60°C to form a sheet with a thickness of about 1 mm. The obtained rectangular sheet was heated to 60°C and stress was applied to make the rect...
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