Anti-oxidation polyvinyl chloride pipe and preparation method thereof

Abstract

The invention relates to an anti-oxidation polyvinyl chloride pipe. The anti-oxidation polyvinyl chloride pipe is prepared from components as follows: polyvinyl chloride resin, a plasticizer, a complex antioxidant, a tone, a lubricant, ACR resin and light calcium carbonate, wherein the complex antioxidant is a mixture of an antioxidant B215, an anti-ultraviolet absorbent UV531 and low-density high-pressure polyvinyl. The complex antioxidant used for the anti-oxidation polyvinyl chloride pipe is mainly prepared from a macromolecular organic material which has good anti-oxidation performance and good compatibility with a polyvinyl chloride polymer and can reduce structural defects occurring during preparation of the polyvinyl chloride pipe. By comparison with a common polyvinyl chloride pipe, the complex antioxidant can endow the polyvinyl chloride pipe with higher anti-oxidation performance; by comparison with common polyvinyl chloride pipe which does not contain antioxidants, the anti-oxidation performance of the polyvinyl chloride pipe is effectively improved, the service life of the polyvinyl chloride pipe is guaranteed, and the probability of damage to the polyvinyl chloride pipe in use is reduced.

Description

technical field [0001] The invention belongs to the field of water-saving irrigation devices, and relates to an oxidation-resistant polyvinyl chloride pipe and a preparation method thereof. Background technique [0002] Based on the technical and economic conditions in rural areas of our country, vigorously developing high-efficiency water-saving should be the main measure for agricultural irrigation and water-saving. Water-saving polyvinyl chloride pipes use polyvinyl chloride (PVC) pipes as the main water delivery pipes, which have the advantages of light weight and long length. , small water resistance, corrosion resistance, easy construction and many other advantages have been widely used in agricultural irrigation technology projects. [0003] PVC pipe is rigid polyvinyl chloride pipe, which is extruded by hot pressing after combining polyvinyl chloride resin with stabilizer, lubricant, etc. It is the earliest plastic material to be developed and applied. PVC pipe has ...

AI Technical Summary

Problems solved by technology

PVC pipe has strong corrosion resistance, easy bonding, low price, and hard texture. However, due to the leakage of PVC monomer and additives, it is only suitable for water supply systems whose delivery temperature does not exceed 45°C.

PVC pipe has excellent dielectric properties, but correspondingly it also has the disadvantages of being not resistant to oxidation. When it is above 100°C or exposed to sunlight for a long time, it will decompose to produce hydrogen chloride, and automatically catalyze the decomposition to cause discoloration.

Since the pipes are installed outdoors, when the ambient temperature is high, the pipes may become brittle due to oxidation, resulting in cracking of the pipes

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