Lignin polyamine cation rapid-cracking type asphalt emulsifier and preparation method thereof
A kind of asphalt emulsifier and lignin technology, which is applied in the direction of building components, building insulation materials, buildings, etc., can solve the problems of high production and experimental equipment requirements, high cost of emulsifier raw materials, cumbersome preparation steps, etc., and achieve low production costs and high efficiency. Emulsifying performance, the effect of simple process
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Embodiment 1
[0048] (1) Preparation of lignin polyamine cationic fast-cracking asphalt emulsifier:
[0049] 1) Add 103.2g of diethylenetriamine into the reactor, then dropwise add 72.1g of acrylic acid, stir and react at 45°C for 1h, and obtain reaction intermediate I.
[0050] 2) In another reactor, add 193.1g of 33% (mass fraction) trimethylamine aqueous solution, gradually add 131.2g of 30% (mass fraction) industrial hydrochloric acid, then gradually add 97.1g of epichlorohydrin, and stir and react at 45°C for 2h to obtain Reaction Intermediate II.
[0051] 3) In another reactor, 283.0 g of lignin was dissolved in 649.6 g of 10.7% (mass fraction) sodium hydroxide aqueous solution, mixed and stirred for reaction to obtain reaction intermediate III.
[0052] 4) Add reaction intermediate I to reaction intermediate III, then gradually add 92.5 g of 37% (mass fraction) formaldehyde, and react at 70°C for 3 hours to obtain reaction intermediate IV;
[0053] 5) Gradually add the reaction int...
Embodiment 2
[0064] (1) Preparation of lignin polyamine cationic fast-cracking asphalt emulsifier:
[0065] 1) Add 103.2g of diethylenetriamine into the reactor, then dropwise add 72.1g of acrylic acid, stir and react at 45°C for 1h, and obtain reaction intermediate I.
[0066] 2) Add 109.1g triethylamine to another reactor, gradually add 131.2g 30% (mass fraction) industrial hydrochloric acid, then gradually add 97.1g epichlorohydrin, stir and react at 45°C for 2h to obtain reaction intermediate II.
[0067] 3) In another reactor, 283.0 g of lignin was dissolved in 649.6 g of 10.7% (mass fraction) sodium hydroxide aqueous solution, mixed and stirred for reaction to obtain reaction intermediate III.
[0068] 4) Add reaction intermediate I to reaction intermediate III, then gradually add 92.5 g of 37% (mass fraction) formaldehyde, and react at 60°C for 4 hours to obtain reaction intermediate IV;
[0069] 5) Gradually add the reaction intermediate II to the reaction intermediate IV, and rea...
Embodiment 3
[0079] (1) Preparation of lignin polyamine cationic fast-cracking asphalt emulsifier:
[0080] 1) Add 103.2g of diethylenetriamine into the reactor, then dropwise add 72.1g of acrylic acid, stir and react at 45°C for 1h, and obtain reaction intermediate I.
[0081] 2) In another reactor, add 189.6g 85% (mass fraction) triethanolamine aqueous solution, gradually add 131.2g 30% (mass fraction) industrial hydrochloric acid, then gradually add 97.1g epichlorohydrin, stir and react at 45°C for 2h, Reaction intermediate II is obtained.
[0082] 3) In another reactor, 283.0 g of lignin was dissolved in 649.6 g of 10.7% (mass fraction) sodium hydroxide aqueous solution, mixed and stirred for reaction to obtain reaction intermediate III.
[0083] 4) Add reaction intermediate I to reaction intermediate III, then gradually add 92.5 g of 37% (mass fraction) formaldehyde, and react at 80°C for 2 hours to obtain reaction intermediate IV;
[0084] 5) Gradually add the reaction intermediate I...
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