| abstract |
The invention discloses a kind of methods for preparing environment-friendly type and pressing down cigarette pitch.Using the matrix pitch of 60%-70%, the modification smoke suppressant of 8%-18%, acrylic resin modified, 5%-10% stabilizer of 10%-20%, 2%-8% peculiar smell neutralizer as raw material, by heating fusing, in baking oven, three development processing, shearing steps prepare the environment-friendly type suppression cigarette pitch.Modified smoke suppressant has excellent smoke suppressing effect, high-efficiency environment friendly non-hazardous to staff.It is acrylic resin modified that there is good toughness, the viscoplasticity of pitch can be enhanced.The addition of stabilizer can improve the anti-aging property of pitch, make the stabilization of pitch retention property under high/low temperature, the use condition of intense light irradiation.Peculiar smell neutralizer can then neutralize the smell in asphalt production process, improve execution conditions.Prepared pitch is environmentally friendly in the present invention, and nontoxic to operating personnel, smoke suppressing effect is excellent, and performance is stablized, and preparation method is simple. |