High-strength flexible sheath material for anti-nuclear-electromagnetic cable and preparation method of high-strength flexible sheath material

Abstract

The invention discloses a high-strength flexible sheath material for an anti-nuclear-electromagnetic cable and a preparation method of the high-strength flexible sheath material, and particularly relates to the field of cables. The cable material is prepared from the following components in parts by weight: 100 parts of CR321 chloroprene rubber, 2 to 3 parts of magnesium oxide, 3 to 4 parts of indirect-method zinc oxide, 2 to 3 parts of paraffin, 1 to 2 parts of coumarone resin, 0.5 to 1.0 part of an anti-aging agent RD, 0.5 to 1.0 part of a vulcanization accelerator DM, 0.5 to 1.0 part of stearic acid, 0.6 to 1.5 parts of an anti-aging agent DNP, 0.2 to 0.5 part of a scorch retarder CTP (PVI), 0.8 to 1.5 parts of an accelerant (NA-22), 0.4 to 0.6 part of an accelerant TMTD, 5 to 7 parts of calcium carbonate, 20 to 25 parts of talcum powder, 15 to 20 parts of N330 carbon black, 8-10 parts of pottery clay, 5-8 parts of semi-reinforcing carbon black, 2-3 parts of rubber oil, 4-6 parts of dioctyl phthalate and 4-7 parts of an anti-freezing agent DOS. The high-strength flexible sheath material is good in flame retardance which can reach the UL-V0 level, is good in cold resistance, can have flexibility under the environment condition of -55 DEG C, can be randomly dragged and movably retracted and released, improves the tensile strength and flexibility of a cable sheath, facilitates the maneuverability of the cable during combat, and improves the combat efficiency.

Description

technical field [0001] The invention relates to the technical field of cables, and more particularly, to a high-strength flexible sheath material for anti-nuclear electromagnetic cables and a preparation method thereof. Background technique [0002] A cable is made of one or more mutually insulated conductors and an outer insulating protective layer, and is a wire used to transmit power or information. The cable jacket is the outermost layer of the cable and serves as the most important barrier in the cable to maintain the safety of the internal structure, protecting the cable from mechanical damage during and after installation. [0003] However, the current cable sheath has poor cold resistance, flexibility and tensile strength, and cannot meet the requirements of towing and mobile retractable use in harsh field conditions, which affects the service life of the cable. SUMMARY OF THE INVENTION [0004] In order to overcome the above-mentioned defects of the prior art, th...

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Problems solved by technology

[0004] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide a high-strength flexible sheath material for anti-nuclear electromagnetic cables and a preparation method thereof. The problem to be solved by the present invention is: the existing cable sheath has cold resistance, soft Poor resistance and tensile resistance, can not meet the requirements of towing and mobile retractable use under harsh conditions in the field, affecting the service life of the cable

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