PVC flexible pipe with wear resistance

Abstract

The invention discloses a PVC flexible pipe with wear resistance. The flexible pipe comprises the following components in parts by weight: 30-60 parts of PVC resin, 2-5 parts of polytrimethylene terephthalate, 4-5 parts of calcium iodide, 2-4 parts of potassium phosphate, 0.4-0.6 parts of turpentine, 2-5 parts of an organosilicon rubber compound, 10-15 parts of styrene butadiene rubber, 1-3 parts of carbon black, and 1-2 parts of paraffin. Silicon carbide whiskers are used in the polyvinyl chloride tubing of high-toughness, in order to effectively improve internal structure of the tubing, and improve mechanical strength between tubing and toughness. Furtherly, ageing resistance of the tubing is improved; in the production process, the lubricant is added, so that the material is more uniform, lubrication smoothness of extrusion is improved, and effects of the internal structure are enhanced. The polyvinyl chloride tubing has the characteristics of high toughness and high mechanical strength.

Description

technical field [0001] The invention relates to a wear-resistant PVC hose. Background technique [0002] Polyvinyl chloride pipe, also known as PVC pipe, is a pipe made of thermoplastic polymer polymerized by vinyl chloride monomer. It uses polyvinyl chloride resin as the main raw material, and adds an appropriate amount of anti-aging agent, modifier, etc. It is a material made by kneading, calendering, vacuum blister and other processes. PVC pipe has strong corrosion resistance and is easy to bond. PVC has strong resistance to oxidizing agents, reducing agents and strong acids. However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid, and it is not suitable for contact with aromatic hydrocarbons and chlorinated hydrocarbons. However, PVC pipes, especially UPVC pipes, have poor heat resistance, and their tensile strength decreases in environments above 60°C, and the impact strength of hard polyvinyl chlor...

AI Technical Summary

Problems solved by technology

However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid, and it is not suitable for contact with aromatic hydrocarbons and chlorinated hydrocarbons.

However, PVC pipes, especially UPVC pipes, have poor heat resistance, and their tensile strength decreases in environments above 60°C, and the impact strength of hard PVC plastic drainage pipes decreases in low temperature environments.

In the process of transportation, installation and use, it is prone to brittle failure; in addition, the performance of PVC pipes to withstand impact is also poor