The invention provides an
asphalt separant and a preparation method thereof. The
asphalt separant is uniform light yellow
emulsion and comprises, by weight, 4-10 parts of dimethyl
silicone, 1-2 parts of
surface active agents, 4-10 parts of
glycerol, 40-80 parts of
plant oil, 20-60 parts of water, 0.5-0.8 part of
preservative and 0.2-0.3 part of aromatic. The preparation method includes the following steps that all the components are pre-heated to 60-80 DEG C, the dimethyl
silicone oil, the
glycerol and the
plant oil are sequentially added into a reaction kettle with the constant temperature of 60-80 DEG C, the
surface active agents and the water are added after stirring is carried out for 10-20 min, then stirring is carried out for 10-20 min, high-speed shearing emulsifying are carried out for three times through a
colloid mill at the rotation speed of 1000-6000 r / min, and the
preservative and the aromatic are added in the emulsifying process, and the
asphalt separant is prepared. The asphalt separant has the advantages of being
environmentally friendly and free of
pollution, and is soluble to water, good in
chemical stability, excellent in high temperature and low
temperature resistance, little in use amount and excellent isolation efficiency. Influences to performance of asphalt
mixed materials are small, and the asphalt separant can be used for adhesion resistance of various
mechanical devices in asphalt mixed material conveying and construction, and is wide in application range.