Preparation method of anticorrosive and wear-resistant polyethylene pipe

Abstract

The invention relates to a preparation method of an anticorrosive and wear-resistant polyethylene pipe. The preparation method comprises the following steps: (1), preparing a dispersant; (2), preparing a stabilizer; (3), preparing anticorrosive and wear-resistant paint: mixing and stirring organic silicon resin, polyurethane, carbon black, the dispersant, dicyandiamide, ammonium polyphosphate, thestabilizer, aluminum oxide, cupric oxide, glyceryl tristearate and absolute ethyl alcohol in parts by weight at a temperature of 100-120 DEG C for 2-3 hours to obtain the anticorrosive and wear-resistant paint; (4), primary soaking: soaking a polyethylene pipe body in the paint, and taking out and drying the polyethylene pipe body; (5), secondary soaking: soaking the polyethylene pipe body againafter primary soaking, and taking out and drying the polyethylene pipe body for 1-2 hours. The pipe is not easy to scratch during use by means of the coating, and the service life of the pipe is prolonged.

Description

technical field [0001] The invention relates to a polyethylene pipe, in particular to a method for preparing a corrosion-resistant and wear-resistant polyethylene pipe. Background technique [0002] The laying link often plays an important role in the cost and energy consumption of plastic pipeline projects. The basis of trenchless laying technology is to lay the pipeline to the required underground line position by using the trenchless method. The most widely used trenchless technology for laying concrete pipes and steel pipes is the pipe jacking method. In the laying of plastic pipes The most widely used non-excavation technology is the horizontal directional drilling method, because the non-excavation laying needs to pull or push the plastic pipe into the hole drilled at the bottom or into the old pipe to be repaired. During this process, the surface of the pipe will inevitably be damaged. It is very likely that direct contact with sharp stones will form a concentrated l...

AI Technical Summary

Problems solved by technology

The basis of trenchless laying technology is to lay the pipeline to the required underground line position by using the trenchless method. The most widely used trenchless technology for laying concrete pipes and steel pipes is the pipe jacking method. In the laying of plastic pipes The most widely used non-excavation technology is the horizontal directional drilling method, because the non-excavation laying needs to pull or push the plastic pipe into the hole drilled at the bottom or into the old pipe to be repaired. During this process, the surface of the pipe will inevitably be damaged. It is very likely that direct contact with sharp stones will form a concentrated load in the pipe wall, thereby damaging the high stress concentration and causing potential use risks. However, the wear resistance of ordinary polyethylene pipe coatings is not high, and the surface is easily worn