Semi-conductive metal shielding water-blocking tape and preparation method thereof
A technology of metal shielding and water blocking tape, applied in the direction of power cables, conductors, circuits, etc. with shielding layer/conducting layer, can solve the problems of inability to meet the dual requirements of shielding electric field and water blocking, poor effect, etc., and achieve high-efficiency dual Surface water blocking performance, simple preparation process, and high-efficiency shielding effect of electric field
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[0108] According to the present invention, provide the preparation method of semiconductive glue, this method may further comprise the steps:
[0109] Step (1), mixing rubber, conductive filler A, and additive A to obtain a product;
[0110] According to the present invention, in step (1), the additive A includes one or more of a vulcanizing agent, a plasticizer, and a curing agent, preferably also includes an accelerator and / or an activator, and more preferably also includes a flame retardant.
[0111] In the present invention, the order of adding additive A in the rubber mixing process has an important influence on the softness, mechanical properties and electrical conductivity of the rubber.
[0112] According to the present invention, in step (1), the rubber is firstly milled, and then the activator, plasticizer, accelerator, conductive filler A, vulcanizing agent and curing agent are added in sequence, and the rubber is mixed. If the addition order is not followed, the s...
Embodiment 1
[0142] 20 tinned copper wires and 164 600D viscose fibers are used as warp threads, 600D viscose fibers are used as weft threads, woven with a high-speed braiding machine, and 100D polyester filaments are used for double-sided locking to obtain a tinned copper wire shielding tape base Among them, the diameter of tinned copper wire is 0.2mm, and in the warp, 20 tinned copper wires are evenly distributed among 164 viscose fibers, and every 8 viscose fibers and one tinned copper wire constitute a unit;
[0143] Take by weighing 80 parts of nitrile rubber (wherein, 1 part represents 100g, the same below), 20 parts of chloroprene rubber, carry out rubber mixing, and add 5 parts of zinc oxides, 2 parts of stearic acid, 10 parts of glycerin, DBP6 parts, promote 1 part of TMTD agent, 0.6 part of accelerator CZ, 0.8 part of accelerator TETD, 20 parts of superconducting carbon black, 6 parts of spray carbon black, 0.3 part of sulfur, 0.6 part of dibutyltin dilaurate, mixing rubber, mixin...
Embodiment 2
[0147] 20 tinned copper wires and 164 600D viscose fibers are used as warp threads, 600D viscose fibers are used as weft threads, woven with a high-speed braiding machine, and 100D polyester filaments are used for double-sided locking to obtain a tinned copper wire shielding tape base Among them, the diameter of tinned copper wire is 0.2mm, and in the warp, 20 tinned copper wires are evenly distributed among 164 viscose fibers, and every 8 viscose fibers and one tinned copper wire constitute a unit;
[0148] Take by weighing 90 parts of nitrile rubber, 25 parts of chloroprene rubber, carry out rubber mixing, and add 4 parts of zinc oxide, 1.5 parts of stearic acid, 12 parts of glycerin, 5 parts of DBP, 1 part of accelerator TMTD, 0.6 part of accelerator CZ, 0.8 parts of accelerator TETD, 20 parts of conductive carbon black, 0.3 parts of sulfur, 0.6 parts of dibutyltin dilaurate, 6 parts of ammonium polyphosphate, mix the rubber, pound the rubber after the rubber mixing is forme...
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Abstract
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