A kind of high-performance cold regeneration type asphalt emulsifier and preparation method thereof
A kind of asphalt emulsifier, cold recycling technology, applied in the direction of construction, building components, building insulation materials, etc., can solve the problems of product appearance, etc., to achieve the effect of improving emulsification ability, strength and adhesion
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Embodiment 1
[0044] Add 2.2g of triethylenetetramine into 50g of methanol and stir to dissolve, add 3.0g of formaldehyde solution with a content of 37-40wt%, keep it at 30°C for 3.5h, add 15.4g of nonylphenol polyoxyethylene ether (NP-30), Reflux (methanol at about 65°C) for 4.5 hours, lower to room temperature, add 1.5g of triethylenetetramine, 4.2g of 37-40% formaldehyde solution, keep at 34°C for 3.5h, and obtain solution c.
[0045] Suspend 11g of purified lignin in 83.6g of water, add 4.4g of 30% NaOH and stir to dissolve, raise the temperature to 85-90°C, slowly add the above solution c at this temperature, distill methanol at the same time, and then add methanol to distill the process belt out of the water yield, insulation 4.5h to obtain the emulsifier product.
[0046] Preparation of asphalt emulsion
[0047] Weigh 20g of the above-prepared emulsifier, dissolve it in warm water at 55-60°C, add 36% hydrochloric acid to adjust the pH to 2-3, then pour it into the preheated and prew...
Embodiment 2
[0051] Add 2.2g of triethylenetetramine into 80g of methanol and stir to dissolve, add 3.0g of formaldehyde solution with a content of 37-40%, keep it at 30°C for 3.5h, add 19.8g of nonylphenol polyoxyethylene ether (NP-40), Reflux reaction for 4.5h, lower to room temperature, add 1.5g of triethylenetetramine, 4.2g of 37-40% formaldehyde solution, keep at 34°C for 3.5h, and obtain solution c.
[0052]Suspend 11g of purified lignin in 85g of water, add 4.4g of 30% liquid caustic soda, stir to dissolve, heat up to 85-90°C, slowly add the above solution c at this temperature, distill out methanol at the same time, add methanol after the addition The amount of water taken out in the distillation process was kept warm for 4.5 hours to obtain an emulsifier product.
[0053] The asphalt emulsion obtained above was prepared according to the method for preparing the asphalt emulsion described in Example 1, and then measured (see Table 2).
[0054] Table 2 Asphalt emulsion performance ...
Embodiment 3
[0058] Add 2.8g of tetraethylenepentamine into 50g of methanol and stir to dissolve, add 3.0g of formaldehyde solution with a content of 37-40%, keep it at 30°C for 3.5h, add 15.4g of nonylphenol polyoxyethylene ether (NP-30), Reflux reaction for 4.5h, lower to room temperature, add 1.9g of tetraethylenepentamine, 4.2g of 37-40% formaldehyde solution, keep at 34°C for 3.5h, and obtain solution c.
[0059] Suspend 11g of purified lignin in 83.6g of water, add 4.4g of 30% liquid caustic soda, stir to dissolve, raise the temperature to 85-90°C, slowly add the above solution c at this temperature, and distill methanol at the same time, add The amount of water taken out in the methanol distillation process was kept for 4.5 hours to obtain an emulsifier product.
[0060] The asphalt emulsion obtained above was prepared according to the method for preparing the asphalt emulsion described in Example 1, and then measured (see Table 3).
[0061] Table 3 Asphalt emulsion performance tes...
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