59results about How to "Does not require high temperature reaction" patented technology

The invention discloses a dication and dianion type asphalt emulsifier, and belongs to the field of fine chemical engineering. The emulsifier is prepared from octadecylamine, an alcohol solvent, acrylic acid, small-carbon-number tertiary amine, industrial hydrochloric acid, epoxy chloropropane and sodium chloroacetate at the molar ratio of 1 mol:(4.00-9.00) mol: (1.00-1.06) mol: (1.02-1.10) mol: (1.02-1.10) mol: (1.02-1.08) mol: (1.01-1.08) mol. The asphalt emulsifier is prepared from the synthetic raw materials which are easy to obtain and is low in production cost, simple in process, free of high-temperature reactions and capable of emulsifying asphalt of different models; prepared emulsified asphalt is fine, uniform, good in storage stability and suitable for spreading of chip seal coat oil or prime coat oil or tack coat oil of highways; the asphalt emulsifier has the characteristics of a quick-breaking asphalt emulsifier.

The invention discloses a dicationic amide type asphalt emulsifier, the molecular structure of which is represented by a formula, wherein R is a methyl group (-CH3), an ethyl group (-C2H5) or an alcoholic group (-C2H4OH); The emulsifier is prepared from the following raw materials in a following molar ratio: octadecylamine: an alcohol solvent: acrylamide: low carbon number tertiary amine: technical hydrochloric acid: epichlorohydrin=1mol:(4.00-9.00)mol:(2.00-2.10)mol:(1.02-1.10)mol:(1.02-1.10)mol:(1.02-1.08)mol. The dicationic amide type asphalt emulsifier disclosed by the invention is easily available in synthetic raw materials, low in production cost, simple in process and free of high-temperature reactions. The emulsifier can be used for emulsifying asphalt in various different types and the prepared emulsified asphalt is fine and smooth and uniform and good in storage stability. The emulsifier can be used for prepare rapid type cationic emulsified asphalt.

The invention discloses a dication asphalt emulsifier. The molecular structure of the dication asphalt emulsifier is shown in the description, wherein when x is equal to 1, y is equal to 1 and i is equal to 0; when x is equal to 2, y is equal to 0, z is equal to 1 or 0, and i plus z is equal to 1. The dication asphalt emulsifier is prepared from the following raw material in molar ratio: 1 mol of N-Hydrogenated tallow-1, 3-diaminopropane, 6.00-13.00 mol of alcohols solvent, 1.02-3.05 mol of methyl acrylate, and 2.02-2.10 mol of sodium chloroacetate. The alcohols solvent adopts ethyl alcohol, methyl alcohol or isopropyl alcohol. The synthetic raw material of the dication asphalt emulsifier is easy to get, the production cost is low, the technology is simple, and high-temperature reaction is not required. Different types of asphalt can be emulsified, the prepared asphalt emulsifier is exquisite and uniform, the storage stability is good, dication emulsified asphalt can be prepared, and the dication asphalt emulsifier is applied to spreading of road penetrated oil layers or bonding oil as well as slurry surfacing and micro-surfacing parts, and has the characteristics of a medium breaking asphalt emulsifier and a slow breaking asphalt emulsifier.

The invention discloses a tertiary amide quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from the following raw materials according to molar ratio: octadecylamine, an alcohol solvent, N,N-dimethylacrylamide, epoxy chloropropane and sodium hydrogen sulfite of which the molar ratio is 1mol to (4.00 to 9.00)mol to (2.00 to 2.10)mol to (1.00 to 1.15)mol to (1.05 to 1.25)mol. The alcohol solvent is ethanol, methanol or isopropyl alcohol. The asphalt emulsifier disclosed by the invention has the advantages of easily-obtained synthetic raw materials, low production cost, simple process and no need of a high temperature reaction; the asphalt emulsifier can be used for emulsifying multiple asphalts of different modes; prepared emulsified asphalt is fine, uniform and good in storage stability, and can be used for preparing cationic emulsified asphalt.

The invention discloses a carboxylic acid biquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier, the molecular structure of which is as shown in the specification. The product is prepared from raw materials including N-hydrogenated tallow-1,3-trimethylenediamine, an alcohols solvent, acrylic acid, chloropropylene oxide and sodium bisulfate at the molar ratio of 1 mol: (5.00-11.00) mol: (3.00-3.10) mol: (2.00-2.30) mol: (2.10-2.50) mol. The asphalt emulsifier of the invention has advantages as follows: production cost is low; the process is simple; and high-temperature reaction is not required.

The invention discloses a secondary amide di-quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier and a preparation method thereof, wherein the secondary amide di-quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier is prepared from the following raw materials N-hydrogenated tallow-1,3-propylene diamine, an alcohol solvent, N-hydroxymethyl acrylamide, epichlorohydrin and sodium bisulfite according to a molar ratio of 1:(5.00-11.00):(3.00-3.10):(2.00-2.30):(2.10-2.50), and the alcohol solvent is ethanol, methanol or isopropanol. According to the present invention, the preparation method has advantages of easily available raw material, low production cost, simple process and no requirement of high temperature reaction; and the obtained secondary amide di-quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier can emulsify a variety of different types of asphalts, and can be used for preparing cationic emulsified asphalts, and the emulsified asphalt prepared from the secondary amide di-quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier has advantages of fine and uniform property and good storage stability.

The invention discloses a primary amide quaternary ammonium salt sodium hydroxypropyl sulfonate asphalt emulsifier with a molecular structure shown in the specification, and the asphalt emulsifier is prepared from the following raw materials of octadecylamine, an alcohols solvent, acrylamide, epoxy chloropropane, and sodium hydrogen sulfite according to the molar radio of 1 mol to (4.00-9.00) mol to (2.00-2.10) mol to (1.00-1.15) mol to (1.05-1.25) mol. The asphalt emulsifier provided by the invention is low in preparation cost and simple in process and does not need high-temperature reaction.

The invention discloses an amide quaternary ammonium salt sodium hydroxypropyl sulfonate asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from coconut oil acyl propyl dimethyl tertiary amine, alcohol solvent, acrylic acid, epoxy chloropropane and sodium hydrogen sulfite according to a molar ratio of 1mol:(4.00-9.00)mol):(1.00-1.10)mol:(1.0-1.15)mol:(1.05-1.25)mol, wherein the alcohol solvent is alcohol, methanol or isopropanol. The asphalt emulsifier is easy-to-obtain in synthesis raw materials, low in production cost, simple in process and needless of high-temperature reaction and can emulsify asphalt different in type, emulsified asphalt prepared by using the asphalt emulsifier is exquisite, uniform and high in storage stability, and cationic emulsified asphalt can be prepared.

The invention discloses a carboxylic acid diquarternary ammonium salt type hydroxypropyl phosphate sodium asphalt emulsifier and a preparation method thereof, wherein the asphalt emulsifier is prepared from the following raw materials: N-hydrogenated tallow propane diamine, an alcohol-based solvent, acrylic acid, epichlorohydrin and sodium dihydrogen phosphate according to a molar ratio of 1:(5.00-11.00):(3.00-3.10):(2.00-2.30):(3.00-3.45), or N-hydrogenated tallow propane diamine, an alcohol-based solvent, acrylic acid, epichlorohydrin, trisodium phosphate and hydrochloric acid according to amolar ratio of 1:(5.00-11.00):(3.00-3.10):(2.00-2.30):(2.60-2.99):(2.66-3.06), wherein the alcohol-based solvent is ethanol, methanol or isopropanol. According to the present invention, the method has advantages of easily available synthetic raw materials, low production cost, simple process and no requirement of high temperature reaction; and the prepared carboxylic acid diquarternary ammonium salt type hydroxypropyl phosphate sodium asphalt emulsifier can emulsify a variety of asphalts with different types, is fine and uniform, has good storage stability, and can be used for preparing cationic emulsified asphalt.

The invention discloses a lignin polyamine cation rapid-cracking type asphalt emulsifier and a preparation method thereof. The molecular structure of the emulsifier is as shown in the specification. In the formula, R is methyl (-CH3), ethyl (-C2H5) or ethoxyl (-C2H4OH); LIGNIN represents a lignin molecular chain. The lignin polyamine cation rapid-cracking type asphalt emulsifier is prepared from the following raw materials in parts by weight: lignin, water, sodium hydroxide, diethylenetriamine, crylic acid, formaldehyde (37%), low-carbon-number tertiary amine and industrial hydrochloric acid in a ratio of 100:(159-230):(19-27):(32-40):(23-29):(30-36):(35-82):(42-50):(31-37). The lignin polyamine cation rapid-cracking type asphalt emulsifier disclosed by the invention is high in synthesis raw material availability, low in production cost, simple in process and free of high-temperature reaction. Multiple types of asphalt of different models can be emulsified, the prepared emulsified asphalt is fine and uniform, the storage stability is good, and the rapid-cracking type cation emulsified asphalt can be prepared.

The invention discloses a lignin quaternary ammonium salt cation asphalt emulsifier and a preparation method thereof. According to the preparation method of the lignin quaternary ammonium salt cationasphalt emulsifier, the molecular structural formula of the emulsifier is as shown in the specification, and in the formula, lignin represents a lignin molecular chain. The asphalt emulsifier is widein raw material source, low in production cost, simple in preparation process, excellent in property, fine and uniform in texture and good in stability, has the characteristics of rapid cracking and medium cracking asphalt emulsifiers, and has wide application prospects.

The invention discloses a quaternary ammonium salt type hydroxypropyl sodium phosphate asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from octadecylamine, isopropanol, epoxypropane, epoxy chloropropane and sodium dihydrogen phosphate in a molar ratio of 1 mol:(4.00-9.00) mol:(4.00-4.20) mol:(1.00-1.15) mol:(1.50-1.73) mol, or is prepared from octadecylamine, isopropanol, epoxypropane, epoxy chloropropane, trisodium phosphate and hydrochloric acid in a molar ratio of 1 mol:(4.00-9.00) mol:(4.00-4.20) mol:(1.00-1.15) mol:(1.30-1.50) mol:(1.40-1.61) mol. The synthetic raw materials of the asphalt emulsifier are easy to obtain, the production cost is low, the process is simple, and a high-temperature reaction is not needed. Various types of asphalt canbe emulsified, the prepared asphalt is fine, even and good in storage stability, and cationic emulsified asphalt can be prepared.

The invention discloses a secondary amide cyclamine quaternary ammonium salt amphoteric asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from the following raw materials according to a molar ratio of cocoyl propyl dimethyl tertiary amine: an alcohol solvent: water: epoxy chloropropane: aminoethyl piperazine: acrylic acid of 1 mol to (4.50 to 10.00) mol to (14.00 to 18.00) mol to (1.00 to 1.15) mol to (1.00 to 1.20) mol to (1.00 to 1.20) mol, wherein the alcohol solvent is ethanol, methanol or isopropanol. The asphalt emulsifier has the advantages of easily available synthesis raw materials, low production cost and simple technique, and does not need high-temperature reaction. The emulsifier can emulsify various types of asphalt, the prepared emulsified asphalt is fine and uniform, the storage stability is good, and cationic or anionic emulsified asphalt can be prepared.

The invention discloses an amido quaternary ammonium salt type hydroxypropyl sodium phosphate asphalt emulsifier and a preparation method thereof. The amido quaternary ammonium salt type hydroxypropylsodium phosphate asphalt emulsifier is prepared from raw materials including octadecylamine, alcohol solvent, double-bond-containing amides, epoxy chloropropane and sodium dihydrogen phosphate at a molar ratio of 1:4.00-9.00:2.00-2.10:1.00-1.15:1.50-1.73, or octadecylamine, alcohol solvent, double-bond-containing amides, epoxy chloropropane, trisodium phosphate and hydrochloric acid at a molar ratio of 1:4.00-9.00:2.00-2.10:1.00-1.15:1.30-1.50:1.40-1.61, wherein the alcohol solvent is ethyl alcohol, methyl alcohol or isopropanol. The amido quaternary ammonium salt type hydroxypropyl sodium phosphate asphalt emulsifier is simple in raw material acquisition, low in production cost, simple in process and free from high-temperature reaction and can be applied to emulsifying various types of asphalts; the emulsified asphalts are fine, uniform and good in storage stability and can be applied to preparing cationic emulsified asphalts.

The invention discloses an amide quaternary ammonium salt sodium hydroxypropyl sulfonate asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from coconut oil acyl propyl dimethyl tertiary amine, alcohol solvent, acrylic acid, epoxy chloropropane and sodium hydrogen sulfite according to a molar ratio of 1mol:(4.00-9.00)mol):(1.00-1.10)mol:(1.0-1.15)mol:(1.05-1.25)mol, wherein the alcohol solvent is alcohol, methanol or isopropanol. The asphalt emulsifier is easy-to-obtain in synthesis raw materials, low in production cost, simple in process and needless of high-temperature reaction and can emulsify asphalt different in type, emulsified asphalt prepared by using the asphalt emulsifier is exquisite, uniform and high in storage stability, and cationic emulsified asphalt can be prepared.

The invention discloses a secondary amide polyamine quaternary ammonium salt amphoteric asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from the following raw materials according to a molar ratio of cocoyl propyl dimethyl tertiary amine: an alcohol solvent: water: epoxy chloropropane: polyethylene polyamine: acrylic acid of 1 mol to (4.50 to 10.00) mol to (14.00 to 18.00) mol to (1.00 to 1.15) mol to (1.00 to 1.20) mol to (1.00 to 1.20) mol, wherein the alcohol solvent is ethanol, methanol or isopropanol, and the polyethylene polyamine is diethylene triamine, triethylene tetramine or tetraethylene pentamine. The asphalt emulsifier has the advantages of easily available synthesis raw materials, low production cost and simple technique, and does not need high-temperature reaction. The prepared emulsified asphalt is fine, smooth and uniform, and has good storage stability.

The invention discloses an amide polyamine asphalt emulsifier, emulsified asphalt, a preparation method and an application thereof. The molecular structure general formula of the asphalt emulsifier isas follows: wherein R' is -NH(C2H4NH)nCH2CH2CON(R)2, n is a positive integer, and R is H or CH3. The amide polyamine asphalt emulsifier can emulsify many different types of asphalt, the prepared emulsified asphalt is fine and uniform, has good storage stability, and can prepare cationic emulsified asphalt.

The invention discloses a secondary amide diamine quaternary ammonium salt amphoteric asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from the following raw materials according to a molar ratio of cocoyl propyl dimethyl tertiary amine: a alcohol solvent: water: epoxy chloropropane: beta-hydroxyethyl ethylene diamine: acrylic acid of 1 mol to (4.50 to 10.00)mol to (14.00 to 18.00) mol to (1.00 to 1.15) mol to (1.00 to 1.20) mol to (1.00 to 1.20) mol, wherein the alcohol solvent is ethanol, methanol or isopropanol. The asphalt emulsifier has the advantages of easily available synthesis raw materials, low production cost and simple technique, and does not need high-temperature reaction. The emulsifier can emulsify various types of asphalt, the preparedemulsified asphalt is fine and uniform, the storage stability is good, and cationic or anionic emulsified asphalt can be prepared.

The invention discloses a dicationic and monoanionic tertiary amide asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from the following raw materials of octadecylamine, an alcohol solvent, N,N-dimethylacrylamide, low-carbon tertiary amine, industrial hydrochloric acid, epoxy chloropropane and sodium chloroacetate at the molar ratio of 1mol:(4.00-9.00)mol:(1.00-1.08)mol:(1.02-1.10)mol:(1.02-1.10)mol:(1.02-1.08)mol:(1.02-1.10)mol. An amide group is introduced into a molecular structure of the prepared asphalt emulsifier through adding N,N-dimethylacrylamide to form the dicationic and monoanionic tertiary amide asphalt emulsifier, so that the hydrophilicity of the asphalt emulsifier and the compatibility of the emulsifier and asphalt are improved.

The invention discloses a secondary amide di-quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier and a preparation method thereof, wherein the secondary amide di-quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier is prepared from the following raw materials N-hydrogenated tallow-1,3-propylene diamine, an alcohol solvent, N-hydroxymethyl acrylamide, epichlorohydrin and sodium bisulfite according to a molar ratio of 1:(5.00-11.00):(3.00-3.10):(2.00-2.30):(2.10-2.50), and the alcohol solvent is ethanol, methanol or isopropanol. According to the present invention, the preparation method has advantages of easily available raw material, low production cost, simple process and no requirement of high temperature reaction; and the obtained secondary amide di-quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier can emulsify a variety of different types of asphalts, and can be used for preparing cationic emulsified asphalts, and the emulsified asphalt prepared from the secondary amide di-quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier has advantages of fine and uniform property and good storage stability.

The invention discloses a quaternary ammonium hydroxypropyl sodium phosphate quick breaking asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from the following raw materials according to molar ratio: octadeyl dimethyl tertiary amine, an alcohol solvent, epoxy chloropropane and sodium dihydrogen phosphate with the molar ratio of 1mol to (4.00-9.00)mol to (1.00-1.15)mol to (1.50-1.73)mol, or octadeyl dimethyl tertiary amine, an alcohol solvent, epoxy chloropropane, rtiary sodium phosphate and hydrochloric acid with the molar ratio of 1mol to 4.00-9.00)mol to (1.00-1.15)mol to (1.30-1.50)mol to (1.40-1.61)mol. The alcohol solvent adopts ethanol, methanol or isopropanol. The asphalt emulsifier has the advantages that the raw materials are available, the production cost is low, the technology is simple, and high-temperature reaction is not required, various different models of asphalt can be emulsified, formed emulsified asphalt is fine and uniform, the storage stability is good, and cationic emulsified asphalt can be prepared.

The invention discloses a cation modified asphalt emulsifier as well as a preparation method and application thereof. The preparation method of the cation modified asphalt emulsifier comprises the following steps: uniformly mixing long-chain alkyl primary amine, cationic acrylamide monomer and an alcohol solvent for reaction at 40-80 DEG C for 2-12 h to obtain a reaction product, wherein the molarratio of long-chain alkyl primary amine, the cationic acrylamide monomer and the alcohol solvent is 1.00:(2.02-2.10):(5.00-10.00). When the modified asphalt emulsifier is used for preparing soap liquid, protonation can occur under the acidic condition, so that water solubility of the modified asphalt emulsifier is further enhanced; the asphalt emulsifier has the advantages of easily available rawmaterials, mild synthesis condition, simple process and high adaptability to asphalt, and is suitable for large-scale production. The prepared emulsifier has good emulsifying performance, and the prepared emulsified asphalt has high storage stability and good adhesion with aggregate and can meet requirements of practical engineering application.

The invention discloses a carboxylic acid diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier, the molecular structure of which is as follows: it is prepared from raw materials with the following molar ratio: N-hydrogenated tallow-1,3- The molar ratio of propylene diamine, alcohol solvent, acrylic acid, epichlorohydrin, sodium bisulfite is 1mol: (5.00‑11.00) mol: (3.00‑3.10) mol: (2.00‑2.30) mol: (2.10‑ 2.50) mol. The production cost of the asphalt emulsifier of the invention is low, the process is simple, and no high-temperature reaction is required.

The invention discloses a dication asphalt emulsifier. The molecular structure of the dication asphalt emulsifier is shown in the description, wherein when x is equal to 1, y is equal to 1 and i is equal to 0; when x is equal to 2, y is equal to 0, z is equal to 1 or 0, and i plus z is equal to 1. The dication asphalt emulsifier is prepared from the following raw material in molar ratio: 1 mol of N-Hydrogenated tallow-1, 3-diaminopropane, 6.00-13.00 mol of alcohols solvent, 1.02-3.05 mol of methyl acrylate, and 2.02-2.10 mol of sodium chloroacetate. The alcohols solvent adopts ethyl alcohol, methyl alcohol or isopropyl alcohol. The synthetic raw material of the dication asphalt emulsifier is easy to get, the production cost is low, the technology is simple, and high-temperature reaction is not required. Different types of asphalt can be emulsified, the prepared asphalt emulsifier is exquisite and uniform, the storage stability is good, dication emulsified asphalt can be prepared, and the dication asphalt emulsifier is applied to spreading of road penetrated oil layers or bonding oil as well as slurry surfacing and micro-surfacing parts, and has the characteristics of a medium breaking asphalt emulsifier and a slow breaking asphalt emulsifier.

The invention discloses a biquaternary ammonium salt type hydroxypropyl sodium phosphate asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from the following rawmaterials in molar ratio: N-(hydrogenated tallow alkyl)trimethylenediamine, an alcohol solvent, propylene oxide, epichlorohydrin and sodium dihydrogen phosphate in a molar ratio of 1 mol:(5.00-11.00)mol:(3.00-9.20) mol:(2.00-2.30) mol:(3.00-3.45) mol. Alternatively, the asphalt emulsifier is prepared from N-(hydrogenated tallow alkyl)trimethylenediamine, the alcohol solvent, propylene oxide, epichlorohydrin, trisodium phosphate and hydrochloric acid in a molar ratio of 1 mol:(5.00-11.00) mol:(3.00-9.20) mol:(2.00-2.30) mol:(2.60-2.99) mol:(2.66-3.06)mol. The alcohol solvent is ethanol, methanol or isopropanol. The asphalt emulsifier has the advantages of easily available synthetic raw materials, low production cost and simple process, and does not need high-temperature reaction. Differenttypes of asphalt can be emulsified, the prepared emulsified asphalt is fine and uniform and has good storage stability, and cationic emulsified asphalt can be prepared.

The invention discloses a secondary amide polyamine quaternary ammonium salt amphoteric asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from the following molar ratio raw materials: cocoyl propyl dimethyl tertiary amine, alcohol The molar ratio of solvent-like solvent, water, epichlorohydrin, polyethylene polyamine, and acrylic acid is 1mol: (4.50‑10.00) mol: (14.00‑18.00) mol: (1.00‑1.15) mol: (1.00‑1.20) mol: (1.00‑1.20) mol. The alcoholic solvent is ethanol, methanol or isopropanol. The polyethylene polyamine is diethylenetriamine, triethylenetetramine or tetraethylenepentamine. The synthetic raw materials of the asphalt emulsifier of the invention are easy to obtain, the production cost is low, the process is simple, and no high-temperature reaction is required. It can emulsify various types of asphalt, and the prepared emulsified asphalt is fine and uniform, and has good storage stability.

The invention discloses a quaternary ammonium hydroxypropyl sodium phosphate quick breaking asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from the following raw materials according to molar ratio: octadeyl dimethyl tertiary amine, an alcohol solvent, epoxy chloropropane and sodium dihydrogen phosphate with the molar ratio of 1mol to (4.00-9.00)mol to (1.00-1.15)mol to (1.50-1.73)mol, or octadeyl dimethyl tertiary amine, an alcohol solvent, epoxy chloropropane, rtiary sodium phosphate and hydrochloric acid with the molar ratio of 1mol to 4.00-9.00)mol to (1.00-1.15)mol to (1.30-1.50)mol to (1.40-1.61)mol. The alcohol solvent adopts ethanol, methanol or isopropanol. The asphalt emulsifier has the advantages that the raw materials are available, the production cost is low, the technology is simple, and high-temperature reaction is not required, various different models of asphalt can be emulsified, formed emulsified asphalt is fine and uniform, the storage stability is good, and cationic emulsified asphalt can be prepared.

The invention discloses a lignin polyamine cation rapid-cracking type asphalt emulsifier and a preparation method thereof. The molecular structure of the emulsifier is as shown in the specification. In the formula, R is methyl (-CH3), ethyl (-C2H5) or ethoxyl (-C2H4OH); LIGNIN represents a lignin molecular chain. The lignin polyamine cation rapid-cracking type asphalt emulsifier is prepared from the following raw materials in parts by weight: lignin, water, sodium hydroxide, diethylenetriamine, crylic acid, formaldehyde (37%), low-carbon-number tertiary amine and industrial hydrochloric acid in a ratio of 100:(159-230):(19-27):(32-40):(23-29):(30-36):(35-82):(42-50):(31-37). The lignin polyamine cation rapid-cracking type asphalt emulsifier disclosed by the invention is high in synthesis raw material availability, low in production cost, simple in process and free of high-temperature reaction. Multiple types of asphalt of different models can be emulsified, the prepared emulsified asphalt is fine and uniform, the storage stability is good, and the rapid-cracking type cation emulsified asphalt can be prepared.

The invention discloses a primary amide biquaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier, the molecular structure of which is as shown in the specification. The primary amide biquaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier is prepared from the raw materials including N-hydrogenated tallow-1,3-diaminopropane, an alcohols solvent, acrylamide, epoxy chloropropane and sodium bisulfate at the molar ratio of (5.00-11.00) mol: (3.00-3.10) mol: (2.00-2.30) mol: (2.10-2.50) mol. The invention has the following advantages: production cost of the asphalt emulsifier is low; the process is simple; and high-temperature reaction is not required.

The invention discloses a cation modified asphalt emulsifier as well as a preparation method and application thereof. The preparation method of the cation modified asphalt emulsifier comprises the following steps: uniformly mixing long-chain alkyl primary amine, cationic acrylamide monomer and an alcohol solvent for reaction at 40-80 DEG C for 2-12 h to obtain a reaction product, wherein the molarratio of long-chain alkyl primary amine, the cationic acrylamide monomer and the alcohol solvent is 1.00:(2.02-2.10):(5.00-10.00). When the modified asphalt emulsifier is used for preparing soap liquid, protonation can occur under the acidic condition, so that water solubility of the modified asphalt emulsifier is further enhanced; the asphalt emulsifier has the advantages of easily available rawmaterials, mild synthesis condition, simple process and high adaptability to asphalt, and is suitable for large-scale production. The prepared emulsifier has good emulsifying performance, and the prepared emulsified asphalt has high storage stability and good adhesion with aggregate and can meet requirements of practical engineering application.