Frost resistant emulsified bitumen prepared from composite emulsifier, and preparation method thereof
A technology of emulsified asphalt and emulsifier, applied in the processing of tar asphalt/petroleum asphalt/natural asphalt, building components, building insulation materials, etc., can solve the problems of emulsion storage stability, poor adhesion of mixtures, asphalt The problem of poor adhesion, etc., to achieve the effect of improved frost resistance and Marshall stability, good stability and freeze-thaw resistance, and high adhesion
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Embodiment 1
[0029] Take 6400g of straight-run bitumen from Liaohe crude oil with a penetration of 1481 / 10mm, and heat it to 115°C for later use. Get cationic emulsifier cetyltrimethylammonium chloride 330g, anionic emulsifier fat (18) alcohol polyoxyethylene (3) ether sodium sulfate 20g, zwitterionic emulsifier N-cocoyl-β- Sodium allanate 50g, non-ionic emulsifier oleyl alcohol polyoxyethylene (20) 1g, dissolve in 2129g water together, after the emulsifier is fully dissolved, add 1070g isopropanol, stir well, heat to 42°C , prepared into soap solution for later use. Then the soap liquid and asphalt are transported to the colloid mill respectively, after being uniformly dispersed and ground by the colloid mill, it becomes an oil-in-water emulsion, and then the temperature of the emulsion is lowered to below 60°C by the cooler, and the emulsion flows out from the outlet of the system to obtain the anti-corrosion emulsion. Freezing emulsified asphalt. The specific results are shown in Tabl...
Embodiment 2
[0031]Take 6000g of Oman crude oil solvent-deoiled bitumen from Maoming Petrochemical Company with a penetration of 981 / 10mm, and heat it to 125°C for later use. Get cationic emulsifier octadecyltrimethylammonium chloride 50g, anionic emulsifier fat (18) amine polyoxyethylene (4) sodium sulfate 1g, zwitterionic emulsifier N-lauryl-β-aminopropyl Acid 1g, non-ionic emulsifier octylphenol polyoxyethylene (20) ether 30g, dissolved in 2518g water, after the emulsifier is fully dissolved, then add 400g ethanol, 1000g tert-butanol, stir well, heat to 50°C , prepared into soap solution for later use. Then the soap liquid and asphalt are transported to the colloid mill respectively, after being uniformly dispersed and ground by the colloid mill, it becomes an oil-in-water emulsion, and then the temperature of the emulsion is lowered to below 50°C by the cooler, and the emulsion flows out from the outlet of the system to obtain the anti-corrosion emulsion. Freezing emulsified asphalt. ...
Embodiment 3
[0033] Take 4200g of Kuwait crude oil oxidized bitumen from Qilu Petrochemical Company with a penetration of 561 / 10mm, and heat it to 155°C for later use. Get cationic emulsifier octadecyltrimethylbenzyl ammonium chloride 2g, anionic emulsifier sodium lauryl sulfate 50g, zwitterionic emulsifier N-tallow group-β-iminodipropionic acid di Sodium 6g, non-ionic emulsifier lauryl alcohol polyoxyethylene (20) ether 70g, dissolved in 3672g water, after the emulsifier is fully dissolved, then add 2000g propanol, stir well, heat to 55°C, and prepare soap spare. Then the soap liquid and asphalt are sent to the colloid mill respectively, after being evenly dispersed and ground by the colloid mill, it becomes an oil-in-water emulsion, and then the temperature of the emulsion is lowered to below 70°C by the cooler, and the emulsion flows out from the outlet of the system to obtain the anti-corrosion emulsion. Freezing emulsified asphalt. The specific results are shown in Table 1.
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