Chlorinated polyvinyl chloride pipeline

Abstract

The invention discloses a chlorinated polyvinyl chloride pipeline for protecting cables. In order to overcome the defects of poor anti-impact toughness, high cost and poor heat dissipation of the existing chlorinated polyvinyl chloride pipeline, the pipeline disclosed by the invention is prepared from the following components: chlorinated polyvinyl chloride resin, polyvinyl chloride resin, a heat-resisting modifier NR-188, a calcium-zinc stabilizing agent, filler, chlorinated polyvinyl chloride, paraffins, stearic acid and pigment. The invention has the advantages that the vicat softening temperature is increased and the heat dissipation property of the pipeline is enhanced under the condition of guaranteeing the anti-impact toughness of the pipeline; the requirement on the anti-impact toughness of the underground pipeline is satisfied and the requirement on the heat dissipation property of the protection pipe for the cable is also satisfied; the cost is low; the special equipment is not needed to add; and the production line of the common chlorinated polyvinyl chloride pipeline is used.

Description

technical field [0001] The invention relates to the field of pipelines, in particular to a chlorinated polyvinyl chloride pipeline for cable protection. Background technique [0002] At present, most cables are laid underground. In order to protect the cables from man-made or natural damage, chlorinated polyvinyl chloride pipes are generally used for protection on the periphery of the cables. As a chlorinated polyvinyl chloride pipe for cables, it is required to have high pressure resistance, corrosion resistance, excellent chemical stability, good impact toughness and good heat dissipation. [0003] After the pipeline is passed through the cable, multiple cables are laid in parallel in rows or columns, forming eddy current induction, which generates a lot of heat in the pipeline, especially the cable laid in the center, which generates the most heat. The heat dissipation performance requirements are extremely high. However, the higher the Vicat softening temperature (that...

AI Technical Summary

Problems solved by technology

The higher the Vicat softening temperature (that is, the heat dissipation of the pipe) of the existing ordinary chlorinated polyvinyl chloride pipe, the worse the impact toughness of the pipe

In order to improve the heat dissipation of the pipeline, the manufacturer usually increases the weight of chlorinated polyvinyl chloride resin in the pipeline formula to ensure its impact toughness. Leading to an increase in the production cost of the pipeline, the effect is still not good

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