A low-temperature-resistant high-toughness PVC power cable protection tube and preparation method thereof

Abstract

The invention discloses a low-temperature-resistant high-toughness PVC power cable protection tube and a preparation method thereof. Polyvinyl chloride resin, barium cadmium stabilizer, dioctyl phthalate and lubricant are sequentially added into a high-speed mixer to make the raw materials The temperature of the raw material is raised to 180-200°C through mechanical self-friction with the high-speed mixer, and after the heat preservation and rotation for 30-35min, the temperature of the mixed material obtained after mixing is cooled to 45-55°C by the cold mixer. Poor thermal stability, by adding barium cadmium stabilizer, it can eliminate unstable chlorine atom replacement or eliminate unstable chlorine atom, and at the same time, dioctyl phthalate has good compatibility with polyvinyl chloride resin. Dioctyl dicarboxylate has better low-temperature flexibility and temperature resistance, which in turn improves the temperature resistance and toughness of PVC pipes.

Description

technical field [0001] The invention relates to the field of PVC power cable protection tubes, in particular to a low-temperature-resistant and high-toughness PVC power cable protection tube and a preparation method thereof, belonging to the application technical field of low-temperature-resistant and high-toughness PVC power cable protection tubes. Background technique [0002] With the continuous advancement of science and technology, various electrification equipment has gradually become an indispensable part of people's daily life, production, and construction. People's demand for electricity is increasing, and cables have become the only way to transmit electricity. A large number of The cable is laid underground, and the cable is directly laid underground, which greatly reduces the service life of the cable due to various reasons. The emergence of PVC power pipes has changed this situation. PVC power pipes provide good protection for cables. The service life of the cab...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a low-temperature-resistant high-toughness PVC power cable protection pipe and its preparation method to solve the problem that the PVC pipe is prone to cracks due to low temperature and other factors due to the continuous change of temperature during the long-term use of the PVC pipe. , and in the preparation process of the existing PVC pipe, due to the need for the PVC pipe to have enough rigidity, it is easy to cause the situation such as cutting the PVC pipe during the cutting process, thereby reducing the technical problem of the production efficiency of the PVC pipe

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