PVC flexible pipe with wear resistance

Abstract

The invention discloses a wear-resistant PVC hose, which consists of 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; Turpentine 0.4-0.6; silicone rubber compound 2-5; styrene-butadiene rubber 10-15; carbon black 1-3; paraffin 1-2. The high-toughness polyvinyl chloride pipe of the present invention uses silicon carbide whiskers, which can effectively strengthen the internal structure of the pipe, and improve the mechanical strength and toughness between the pipes. In addition, it improves the aging resistance of the pipe; the lubricant can make the material more uniform during the production process, improve the smoothness of the extrusion, and also play a role in enhancing the internal structure. The prepared polyvinyl chloride pipe 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