Epoxy resin-based nanometer composite material and preparation method thereof
A technology of nanocomposite materials and epoxy resin matrix, which is applied in the field of materials, can solve the problems of high crosslinking density, poor impact resistance, and stability, and achieve simple preparation process steps, stable material performance, and good process repeatability Effect
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[0048] The preparation method of epoxy resin-based nanocomposite material of the present invention, specifically implement according to the following steps:
[0049] step 1
[0050] Inorganic nano rectorite was treated with long-chain dodecyl dimethyl benzyl ammonium chloride (trade name 1227) to obtain organic rectorite, and then organic rectorite, E-51 prepolymer, 2-Ethyl-4-methylimidazole was dried to constant weight on the analytical balance; organic rectorite, 2-ethyl-4-methylimidazole, E-51 prepolymer, and organic The mass of rectorite accounts for 1%-9% of the total mass, 2-ethyl-4-methylimidazole and E-51 prepolymer account for 91%-99% of the total mass, and the sum of the mass percentages of the above components is 100%; wherein, according to the mass percentage, the weighed 2-ethyl-4-methylimidazole accounts for 3.5%-5% of the mass of 2-ethyl-4-methylimidazole and E-51 prepolymer, so The weighed E-51 prepolymer accounts for 95%-96.5% of the mass of 2-ethyl-4-methyl...
Embodiment 1
[0081] Inorganic nano-rectorite was treated with long-chain dodecyl dimethyl benzyl ammonium chloride to obtain organic rectorite, and then organic rectorite, E-51 prepolymer, 2-ethyl- 4-methylimidazole was dried to constant weight on the analytical balance; according to mass percentage, 1% organic rectorite, 3.465% 2-ethyl-4-methylimidazole, 95.535% E-51 pre- Polymer; Clean the mold for pouring, apply the release agent, and put it in an oven at 80°C for standby; put the E-51 prepolymer in a beaker and stir and heat at 80°C for 30min. Put in the weighed amount of organic rectorite, continue to stir at 80°C for 30min, move the beaker to an 80°C oven and continue to infiltrate for 6h; drop in 2-ethyl-4-methyl imidazole, continue to stir for 5 minutes, move the beaker to an 80°C vacuum oven, and vacuumize for 15 minutes; after observing the escape of bubbles, quickly remove the beaker from the oven, pour the reaction mixture into a mold, and move the mold to an 80°C oven. Vacuum...
Embodiment 2
[0084] Inorganic nano-rectorite was treated with long-chain dodecyl dimethyl benzyl ammonium chloride to obtain organic rectorite, and then organic rectorite, E-51 prepolymer, 2-ethyl- 4-methylimidazole was dried to constant weight on the analytical balance; according to mass percentage, 9% organic rectorite, 3.185% 2-ethyl-4-methylimidazole, 87.815% E-51 pre- polymer; clean the mold for pouring, apply the release agent, and place it in an oven at 100°C for later use; put the E-51 prepolymer in a beaker and stir and heat it at 100°C for 10 minutes. Put in the weighed amount of organic rectorite, continue to stir at 100°C for 10min, move the beaker to a 100°C oven and continue to infiltrate for 4h; drop in the weighed amount of 2 -Ethyl-4-methylimidazole, continue to stir for 10 minutes, move the beaker to a vacuum oven at 100°C, and vacuum for 10 minutes; after observing the escape of bubbles, quickly remove the beaker from the oven, and pour the reaction mixture into the mold...
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