1. Introduction to cationic slow cracking and fast setting asphalt emulsifier

Cationic slow cracking and fast setting asphalt emulsifier is a special type of asphalt emulsifier mainly used in road construction and maintenance. Its main components include nonylphenol polyoxyethylene ether, epichlorohydrin, and trimethylamine, which are synthesized through chemical reactions. LT-CMK1 asphalt emulsifier is a cationic slow cracking and fast setting asphalt emulsifier with excellent emulsification effect, which can emulsify various types and origins of asphalt. The emulsifier has wide adaptability to a variety of stones, improves the adhesion of asphalt lotion to different stones, and plays the role of anti stripping agent; Capable of adapting to construction in higher temperatures; During the demulsification process, it can actively drive away the moisture on the surface of the stone material and promote the formation of asphalt film, resulting in fast formation of the mixture and meeting the requirements of fast open traffic; Especially suitable for micro surfacing and slurry sealing in highway construction.

2. Characteristics of cationic slow cracking and fast setting asphalt emulsifier

(1) Emulsification effect: cationic slow cracking and fast setting asphalt emulsifier can effectively emulsify asphalt to form a uniform lotion. The effectiveness of emulsification depends on factors such as the amount of emulsifier used, the pH value of the emulsifier aqueous solution, and the stirring speed.

(2) Storage stability: Under appropriate conditions, emulsified asphalt can be stored stably for more than 5 days, with uniform and small particle size.

(3) Demystification time: This emulsifier belongs to the slow cracking and fast setting type, with an initial setting time of 2 hours, suitable for the requirements of slurry sealing technology.

(4) Application scope: Cationic slow cracking and fast setting asphalt emulsifier is suitable for slurry sealing, micro surface construction, etc. It can cure quickly and has a short open traffic time.

3. Usage and application scenarios of cationic slow cracking and fast setting asphalt emulsifier

When using cationic slow cracking and fast setting asphalt emulsifier, it is necessary to add the emulsifier to water, stir and raise the temperature to 60-65 ℃, adjust the pH value to 2.5 with hydrochloric acid, and then produce emulsified asphalt through emulsified asphalt equipment. This emulsifier is suitable for slurry sealing, micro surface construction, etc. It can cure quickly and has a short open traffic time.

4. Synthesis method of cationic slow cracking and fast setting asphalt emulsifier

The main raw materials for the synthesis of cationic slow cracking and fast setting asphalt emulsifiers include nonylphenol polyoxyethylene ether, epichlorohydrin, and trimethylamine. Synthesis of polyoxyethylene cationic asphalt emulsifier N - [2-hydroxy-3-nonylphenol polyoxyethylene ether (15)] propyl trimethylammonium chloride through chemical reaction, and characterization by infrared spectroscopy (IR) and other methods.

5. Main technical indicators of cationic slow cracking and fast setting asphalt emulsifier

(1) Appearance: Yellow viscous liquid

(2) Active ingredient content: 85 ± 2%

(3) PH value: Adjust to 2.0~2.5 with industrial hydrochloric acid

(4) Dosage: 1.5~2.2%

(5) Packaging: 200kg/drum