Preparation method of novel slow-crack slow-coagulation asphalt emulsifier
A kind of asphalt emulsifier, slow-setting technology, which is applied in the field of preparation of new slow-cracking and slow-setting asphalt emulsifiers, which can solve the problems of difficulty in meeting the performance requirements of asphalt emulsions, large differences in lignin content, unstable product quality, etc. problems, to achieve the effect of improving storage stability and performance, improving slow cracking performance and storage stability, and improving slow setting performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0019] Emulsifier preparation
[0020] Add 16.3g (0.05mol) of octadecylpropylenediamine, 12.2g (0.15mol) of chloroethanol and 20g of isopropanol into the reaction vessel, stir and react at 80-85°C for 3 hours to obtain hydroxyalkyl-substituted Long chain aliphatic amine intermediate solution.
[0021] Add 13.8g (0.07mol) of 30% trimethylamine aqueous solution and 8.1g (0.08mol) of 36% concentrated hydrochloric acid into the reaction vessel, mix uniformly below 40°C to obtain a tertiary amine hydrochloride solution, and then 5.6 g (0.06 mol) of epichlorohydrin was added dropwise at ~45° C., and stirred and reacted at this temperature for 5 hours to obtain a quaternary ammonium salt intermediate solution.
[0022] Add 0.06 mol of the above-prepared quaternary ammonium salt intermediate solution dropwise to 0.05 mol of the hydroxyalkyl-substituted long-chain fatty amine intermediate solution prepared above at 80-85°C, and stir and react at 80-85°C for 6 hours to obtain Slow-cra...
Embodiment 2
[0028] Emulsifier preparation
[0029] Add 18g (0.05mol) of N-hexadecyltriethylenetetramine, 15.6g (0.165mol) of 1-chloro-2-propanol and 20g of isopropanol into the reaction vessel, and stir the reaction at 80-85°C for 5 hours , to obtain a hydroxyalkyl substituted long-chain fatty amine intermediate solution.
[0030] Add 6.1g (0.06mol) of triethylamine and 7.1g (0.07mol) of 36% concentrated hydrochloric acid into the reaction vessel, mix well below 50°C to obtain a tertiary amine hydrochloride solution, and then dropwise add 5.1g (0.055mol) epichlorohydrin, stirred and reacted at 50-55° C. for 5 hours to obtain a quaternary ammonium salt intermediate solution.
[0031] Add 0.055 mol of the quaternary ammonium salt intermediate solution prepared above dropwise to 0.05 mol of the hydroxyalkyl-substituted long-chain fatty amine intermediate solution prepared above at 85-90°C, and stir and react at this temperature for 6 hours to obtain Slow-cracking and slow-setting asphalt e...
Embodiment 3
[0037] Emulsifier preparation
[0038] Add 15g (0.05mol) of hexadecylpropylenediamine, 11.1g (0.10mol) of 3-chloro-1,2-propanediol and 20g of n-butanol into the reaction vessel, and stir the reaction at 90-95°C for 6 hours , to obtain a hydroxyalkyl substituted long-chain fatty amine intermediate solution.
[0039] Add 7.9g (0.055mol) of tri-n-propylamine and 6g (0.06mol) of 36% concentrated hydrochloric acid into the reaction vessel, mix well below 60°C, and then add dropwise 4.6g (0.05mol) of epoxy chloride propane, and stirred and reacted at 55-60°C for 6 hours to obtain a quaternary ammonium salt intermediate solution.
[0040] Add 0.05 mol of the quaternary ammonium salt intermediate solution prepared above dropwise to 0.05 mol of the hydroxyalkyl-substituted long-chain fatty amine intermediate solution prepared above at 90-95° C., and stir and react at this temperature for 6 hours to obtain Slow-cracking and slow-setting asphalt emulsifier.
[0041] Preparation of emu...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More