| abstract |
The invention provides a polyethylene-polyphenylene sulfide slat elimination underground pipe used for saline-alkali soil. The underground pipe comprises, by weight, 55 parts to 70 parts of polyethylene, 12 parts to 20 parts of polyphenylene sulfide, 5 parts to 11 parts of chlorinated paraffin, 0.6 part to 1.6 parts of azodicarbonamide, 6 parts to 15 parts of single-component azodicarbonamide, 3 parts to 7 parts of nanometer materials, 4 parts to 11 parts of thermoplastic rubber, 3 parts to 9 parts of chlorosulfonated polyethylene elastomers, 3 parts to 8 parts of polyvinyl butyral, 1 part to 6 parts of paraffin-based white oil and 0.8 part to 1.6 parts of magnesium stearate. The invention further provides application of the underground pipe. The nominal outside diameter of the prepared underground pipe is 9.5 cm, and the average wall thickness of the prepared underground pipe is 0.65 mm. The effective water absorption area of the pipe is 65 cm<2>/m. The underground pipe is large in elongation at break, high in low temperature flexibility, large in strength and high in low temperature impact force resistance. |