| abstract |
The invention relates to a special material for a water supply pipe used in a mine. The special material is prepared from raw materials consisting of 50 to 70 parts of a polyethylene resin, 10 to 30 parts of a reinforcing agent, 5 parts of a coloring agent, 10 to 30 parts of a fire retardant, 0.1 to 1 part of an antistatic agent, 0.01 to 1 part of a processing aid, etc. A preparation method for the special material comprises the following steps: adding the polyethylene resin, the reinforcing agent, the coloring agent, the fire retardant, the antistatic agent and the processing aid in proportion into a high speed mixer for mixing for 10 to 30 min; and subjecting an obtained mixed material to plasticizing and extrusion by a double screw extruder, cooling and granulation so as to prepare the special material for the water supply pipe used in the mine. The special material prepared by the invention has the advantages of good flame retardation, excellent antistatic performance, high rigidity, light weight, corrosion resistance, no fouling, convenience in installation, etc., can be used for conveying high-sulfur water containing calcium ions, magnesium ions, etc. under the mine and has wide market prospects. |