Asphalt-based graphene asphalt warm mix agent and preparation method thereof
An asphalt-based and graphene-based technology, applied in building insulation materials, building components, buildings, etc., can solve the problems of few types, expensive warm mixes, poor universality, etc., and achieve good road performance and good compatibility and storage stability, high temperature anti-rutting performance improvement effect
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Embodiment 1
[0019] Add pitch-based graphene quantum dots and hexamine with a molar ratio of 1:1.1 into the reactor, add water-carrying agent xylene accounting for 30wt% of the total mass of the reaction raw materials, stir and heat up to reflux, and amidation reaction occurs at the reflux temperature, The reaction temperature was 150° C., and the reaction was carried out for 4 hours. Afterwards, the xylene was distilled off, vacuumed to a vacuum degree of 0.096 MPa, and the temperature was raised to 240° C. to carry out imidazoline cyclization reaction for 4 hours to obtain an imidazoline intermediate. Prepare an ethanol solution with a mass fraction of 50% from methyl acrylate with an imidazoline intermediate molar ratio of 1:1.1, and slowly add it dropwise to the imidazoline, and react for 12 hours under stirring at 40°C. After the reaction is completed, distill ethanol and unreacted Methyl acrylate to obtain pitch-based graphene-based asphalt warm mix agent.
[0020] Add the asphalt w...
Embodiment 2
[0022] Add pitch-based graphene quantum dots and hexamine with a molar ratio of 1:1.2 into the reactor, add water-carrying agent xylene accounting for 30wt% of the total mass of the reaction raw materials, stir and heat up to reflux, and amidation reaction occurs at the reflux temperature, The reaction temperature was 150° C., and the reaction was carried out for 4 hours. Afterwards, the xylene was distilled off, vacuumed to a vacuum degree of 0.096 MPa, and the temperature was raised to 240° C. to carry out imidazoline cyclization reaction for 4 hours to obtain an imidazoline intermediate. Prepare an ethanol solution with a mass fraction of 50% of methyl acrylate with an imidazoline intermediate molar ratio of 1:1.2, and slowly add it dropwise to the imidazoline, and react for 12 hours under stirring at 40°C. After the reaction is completed, distill ethanol and unreacted Methyl acrylate to obtain pitch-based graphene-based asphalt warm mix agent.
[0023] Add the asphalt war...
Embodiment 3
[0025] Add pitch-based graphene quantum dots and hexamine with a molar ratio of 1:1.1 into the reactor, add water-carrying agent xylene accounting for 30wt% of the total mass of the reaction raw materials, stir and heat up to reflux, and amidation reaction occurs at the reflux temperature, The reaction temperature was 150° C., and the reaction was carried out for 6 hours. Afterwards, the xylene was distilled off, the vacuum was evacuated to 0.096 MPa, and the temperature was raised to 240°C to carry out the imidazoline cyclization reaction for 6 hours to obtain the imidazoline intermediate. Prepare an ethanol solution with a mass fraction of 50% from methyl acrylate with an imidazoline intermediate molar ratio of 1:1.1, and slowly add it dropwise to the imidazoline, and react for 12 hours under stirring at 40°C. After the reaction is completed, distill ethanol and unreacted Methyl acrylate to obtain pitch-based graphene-based asphalt warm mix agent.
[0026] Add the asphalt w...
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