A kind of pvc power protection composite pipe and preparation method thereof

Abstract

The invention relates to a PVC power protection composite pipe, which is characterized by an inner layer, a first intermediate layer, a second intermediate layer, a third intermediate layer and an outer layer in sequence, wherein the inner layer is a PVC pipe layer, and the outer layer is a protection layer layer, the outer layer is preferably a wear-resistant coating layer, a low-temperature-resistant coating layer, an alkali-resistant coating layer, an acid-resistant coating layer, a heat-resistant coating layer, a high-hardness coating layer, and a high-elastic coating layer; wherein the first intermediate layer is a PVC containing nano-tin layer, the second intermediate layer is a thin aluminum layer, the third intermediate layer is a porous alumina layer and a preparation method thereof, by arranging a layer of active nano-metal tin on the power protection tube, the process is simplified, and a porous aluminum oxide layer is prepared by anodizing at the same time. The metal layer can not only accommodate the odorant, but also provide higher hardness, and the low temperature resistant coating on the outer layer can provide protection in low temperature areas at the same time.

Description

technical field [0001] The present application relates to a PVC power protection composite pipe, in particular to a power protection pipe that can be used in low temperature environments and has anti-mouse ants, and at the same time provides a simplified deposition treatment process. Background technique [0002] The outer coating of the communication cable is mostly plastic materials, such as PVC\PE, etc., which are buried underground and often encounter the bite of mice and termites, resulting in communication interruption and possible fire. It is a realistic subject, which leads to economic losses due to the bite of rat ants every year, and it is time-consuming and laborious to detect and replace. [0003] So far, domestic and foreign scientific and technological personnel and engineers have carried out a lot of research on this, and there are several common methods used in this regard: 1) Chemical rodent control: the use of repellent substances added to the cable sheath ...

AI Technical Summary

Problems solved by technology

For example, Chinese patent CN201620763426.7, although the use of tensile steel mesh can prevent voles to a certain extent, it is not effective enough for termite protection. Termites can further bite through the mesh, and mice can also pass through the mesh, and even bite off or Grinding off the wire mesh, so it is still not possible to completely prevent them from corroding, and such as US20080247717A1, which also uses an outer sheath of an annealed steel wire layer of polymer material, which still has the above-mentioned problems

[0004] In recent years, the demand for special function cables has been increasing. On the one hand, enterprises in the industry have evaluated that although the cost of using them is higher than that of ordinary cables, considering the cost of rodent and ant erosion of ordinary cables, the cost of manual replacement, and the loss of communication information caused, special rodent and ant-proof Functional cable protective sleeves still have high market competitiveness. On this basis, our company has formed a series of research and development of special functional electric protection tubes according to the demand. The developed ones are prepared by traditional roughening + sensitization + activation process. Make the bottom layer and then prepare the porous nickel metal layer, and then the bottom layer process is complicated and cumbersome, and the hardness of the porous layer is not enough

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