Geomembrane for soil remediation engineering and preparation method of geomembrane

Abstract

The invention discloses a geomembrane for soil remediation engineering. The geomembrane is characterized by comprising a high-density polyethylene membrane core layer, and a weather-proof impermeablelayer A and a weather-proof impermeable layer B which are respectively positioned on the upper surface and the lower surface of the high-density polyethylene membrane core layer and are independent from each other; the high-density polyethylene film core layer and the weather-proof impermeable layer A as well as the high-density polyethylene film core layer and the weather-proof impermeable layerB are bonded by radiation grafted adhesive film layers independently; and the weather-proof impermeable layer A and the weather-proof impermeable layer B are the same in preparation raw materials andpreparation method, and are both prepared from modified 4,4'-diacyl chloride diphenyl ether/4,4'-diaminobenzenesulfonylaniline polycondensate. The invention further discloses a preparation method of the geomembrane for soil remediation engineering. The geomembrane for soil remediation engineering disclosed by the invention is good in comprehensive performance, good in weather resistance, high-temperature resistance and corrosion resistance, and excellent in impermeability, mechanical property, antistatic property and flame retardance.

Description

technical field [0001] The invention relates to the technical field of soil restoration, in particular to a geomembrane used in soil restoration engineering and a preparation method thereof. Background technique [0002] Soil is originally a natural shelter and purification treatment site for various wastes. It is one of the main natural resources for human survival and an important part of the human ecological environment. However, in recent years, with the advancement of my country's modern urban construction, urban layout and planned land use have been adjusted to a large extent. Many fertilizer factories, pesticide factories, chemical factories and other enterprises that discharge a large amount of organic waste have been relocated from the city center. , a large number of former industrial and commercial sites that are abandoned, vacant or no longer in use have emerged. Most of these land uses have caused serious pollution to the soil due to the entry of a large amount ...

AI Technical Summary

Problems solved by technology

However, the additives used have poor compatibility with polymer substrates and poor processing performance. These additives are easy to leak out during long-term use, which affects performance stability and service life.