Anti-ageing salt elimination underground pipe used for saline-alkali soil and preparation method of anti-ageing salt elimination underground pipe

Abstract

The invention provides an anti-ageing salt elimination underground pipe used for saline-alkali soil. The underground pipe comprises, by weight, 55-68 parts of polyethylene, 15-26 parts of polyether sulfone, 5-11 parts of itaconate, 0.9-1.8 parts of 4,4'-oxy-bis(benzenesulfonylhydrazide), 0.7-2.4 parts of zinc stearate, 5-16 parts of C9-based aromatic base crude oil resin, 7-13 parts of modified organosilicon-based polymer, 3-6 parts of nanometer sodium zirconium phosphate, 8-14 parts of silicone rubber, 4-8 parts of cyclic olefin copolymer and 0.8-2.5 parts of isothiazolinone. The invention further provides a preparation method of the underground pipe. The inner wall and the outer wall of the prepared underground pipe are each in a corrugated shape; the nominal outside diameter is 10.5 cm, and the average wall thickness is 0.72 mm; the effective water absorption area of the pipe is 70 cm<2>/m; the anti-ageing salt elimination underground pipe has the beneficial effects of being resistant to ageing and long in service life.

Description

technical field [0001] The invention provides an anti-aging salt discharge concealed pipe for saline-alkali land and a preparation method thereof, belonging to the technical field of saline-alkali land improvement. Background technique [0002] The technology of underground pipe drainage and salt discharge is to bury the seepage pipe at a certain depth in the field, and discharge the water infiltrating from the upper layer or rising water from the lower layer to discharge the saline-alkali land through self-flow or strong drainage, so as to take away the salt and improve the saline-alkali land. Drainage, salt drainage, waterlogging, groundwater level control, etc., burying the drainage pipes in the ground can avoid the problem of open ditch drainage occupying a large amount of cultivated land and slope collapse, control the groundwater level, and inhibit the soil back to alkali caused by the rise of soil capillary water. [0003] When the existing salt drainage underground p...

AI Technical Summary

Problems solved by technology

[0004] (1) The effective water absorption area of ​​the dark tube is small;

[0005] (2) Not resistant to aging; Aging is a phenomenon in which the performance of plastic concealed pipes gradually deteriorates due to the combined effects of internal and external factors during processing, storage and use, so that the use value is finally lost. Aging is an irreversible change , the existing dark pipes are affected by external factors and are prone to aging;

[0006] (3) Short service life

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