Nano polyvinyl chloride pipe and preparation method thereof

Abstract

The invention relates to a nanometer polyvinyl chloride pipe and a preparation method thereof. According to weight ratio, raw materials of the nanometer polyvinyl chloride pipe comprise nanometer polyvinyl chloride resin, calcium carbonate, and PME-100 strengthening and toughening agent, etc. The preparation method is that: first, the raw materials needed are fully mixed in a high level mixing pot and a low level mixing pot; then the materials mixed are transported to an extruder production line to do extruding molding, thereby gaining the nanometer polyvinyl chloride pipe. The invention is characterized in that the invention is not only environment-friendly, but also solves the problems of insufficiency of thermal stability, initial coloring and products reddened and zinc burned, bad weather resistance and copper erosion, etc. During the mixing process of the preparation method, the plasticizing time is shortened, leading to a good plasticizing uniformity and being in favor of the basic extrusion molding process to the modification polyvinyl chloride. The mechanical property of the invention is distinctively higher than the common polyvinyl chloride resin and nanometer blending composite resin. The anti-impact performance and other performances are greatly enhanced The shock strength is two times the common resin products, and in particular the products has good shock strength in low temperature; in addition, the invention has good bending performance, thus being applied to no digging laying and repairing, etc.

Description

1. Technical field: [0001] The invention relates to the technical field of pipes, and relates to a nano-polyvinyl chloride pipe and a preparation method thereof. 2. Background technology: [0002] Polyvinyl chloride (PVC) is currently the second largest general-purpose plastic after polyethylene in output, and is widely used in all walks of life, among which PVC hard products (PVC-U) account for 60% of the total, and are heading towards With the development of new fields of high toughness and high strength. PVC-U pipe is widely used in water supply, building drainage, sewage, chemical and other fields. It is an important type of PVC products and one of the most widely used products in plastic pipes. However, the original PVC pipe has high strength, insufficient toughness, high lead content, and great harm to the environment and human body. During the handling or loading and unloading of the pipe, if it is not handled with care, it is easy to cause damage to the pipe due to ...

AI Technical Summary

Problems solved by technology

[0005] The invention also solves the problems of insufficient thermal stability, initial coloring, product reddening, zinc burning, poor weather resistance, copper corrosion, etc.