Modified PVC (Polyvinyl Chloride) corrugated pipe for concealed-pipe salt removal

Abstract

The invention relates to a modified PVC (Polyvinyl Chloride) corrugated pipe for concealed-pipe salt removal. The modified PVC corrugated pipe is prepared from the following ingredients in parts by mass: 100 parts of PVC resin, 5-12 parts of plasticizer, 3-6 parts of composite stabilizer, 5-15 parts of novel PVC impact modifier ACM resin, 0.5-1.8 parts of lubricant, 0.5-1.8 parts of processing modifier and 2-20 parts of calcium carbonate. The modified PVC corrugated pipe is low in cost, high in ring stiffness, high in surface opening percent, good in compressive strength, tolerant to salt and alkali corrosion and good in salt removing effect and is mainly applied to the field of concealed-pipe salt removal.

Description

technical field [0001] The invention relates to a pipe material for improving saline-alkali land, especially a pipe material for salt discharge in a hidden pipe. Background technique [0002] Saline-alkali soils are soils that are high in salt, making it difficult for plants to grow. Soil salinization and secondary salinization are a worldwide problem. my country is a country with a large area of ​​saline-alkali land and a wide distribution range. Adopting reasonable saline-alkali land improvement measures can improve the utilization rate of land resources in our country, improve the ecological environment, and improve the living standards of farmers. [0003] Underground pipe salt drainage technology is an advanced technology for the transformation of saline-alkali land in the world. Its core idea is to lower the groundwater level by burying underground pipes, remove excessive saline water in the soil, and remove excessive salt in the soil through irrigation and leaching. ...

AI Technical Summary

Problems solved by technology

[0006] In the prior art, the traditional corrugated pipes for salt discharge in hidden pipes mainly use polyethylene (PE) as the raw material to produce polyethylene corrugated pipes, but the polyethylene corrugated pipes have the following problems: the surface opening rate is low, and the diameter of pipes below Φ50mm per meter The area of ​​the water hole does not meet the requirements of the national standard; the ring stiffness is low, it is easy to be bitten by mice when buried in the ground, and the cost of raw materials is high, etc.

Images