A kind of silicone rubber belt and the underwater cable comprising the silicone rubber belt

Abstract

The invention relates to a silicone rubber belt and an underwater cable comprising the silicone rubber belt. The preparation materials of the silicone rubber belt are by mass: 40-60 parts of methyl vinyl silicone rubber, 20-30 parts of ethylene-propylene rubber, 15-20 parts of white carbon black, 3-5 parts of zinc oxide, 1-2 Parts of dibutyltin dilaurate, 1-2 parts of triethylenetetramine, 1-2 parts of antioxidant DNP, 1-2 parts of stannous octoate. There is a steel belt inside the silicone rubber sheath layer, which can shield external interference signals and strengthen the structure. After hot-melt treatment, the silicone rubber belt will melt, so that the silicone rubber belt is not only tightly connected with the steel belt, because the silicone rubber belt and the silicone rubber The base material of the sheath is similar, and it will also be closely combined with the silicone rubber sheath, so that the steel strip can be tightly fixed in the silicone rubber sheath, so that it is not easy to be damaged in the working environment where the seabed shakes. The preparation material of the silicone rubber sheath is added There is a higher proportion of heat stabilizer dibutyltin dilaurate and crosslinker triethylenetetramine, so its own structure will not change during hot melt processing.

Description

technical field [0001] The invention belongs to the technical field of cable preparation, and in particular relates to a silicone rubber belt and an underwater cable comprising the silicone rubber belt. Background technique [0002] As land resources become more and more scarce, a large number of resources in the ocean have attracted people's attention, and the exploration of resources is an important preparation for their exploitation. The power source of underwater exploration equipment is generally the mother ship located on the water surface Or work platform, through the power cable transmission power to maintain equipment operation. [0003] The seabed environment is complex: low temperature, high water pressure, high seawater corrosion, and the seabed structure is complex. The existing sharp rocks, shells, etc. will cut the outer surface of the cable and cause damage to the cable. In order to increase its own strength and shield interference signals, it will increase ...

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Problems solved by technology

[0003] The seabed environment is complex: low temperature, high water pressure, high seawater corrosion, and the seabed structure is complex. The existing sharp rocks, shells, etc. will cut the outer surface of the cable and cause damage to the cable. In order to increase its own strength and shield interference signals, it will increase One layer of metal braiding layer, which brings the following problems: 1. If the metal braiding layer is arranged outside the cable sheath, the seawater will quickly corrode the metal layer; 2. If the metal braiding layer is arranged inside the cable sheath, the metal braiding layer will After the layer is bent and shaken for a long time, breakage and burrs may occur, and the burrs will scratch the internal cables. Although the method of wrapping the reinforced fiber layer can be used to prevent the breakage and burrs from scratching the internal cables, the long-term The bending of time will cause gaps in the wrapping layer, and broken ends and burrs will still damage the internal cables; 3. If a metal braided interlayer is installed in the cable sheath, the properties of the metal and rubber are quite different, and the time is long The combination of the two will not be tight, and it will be bent many times, and the metal braid will have burrs and damage the sheath

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