Coal mine electric drill cable and preparation method of cable insulation layer thereof
An insulating layer, electric drill technology, applied in the direction of insulating conductors/cables, insulated conductors, insulated cables, etc., can solve the problem that the insulation, toughness, strength and anti-corrosion properties of cables cannot be satisfied, the use environment of coal mine electric drills is harsh, and the cable environment is harsh, etc. problems, to achieve the effect of improving mechanical strength and service life, efficient anti-aging effect, excellent insulation and toughness
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[0021] refer to figure 1 , the preparation method of the electric cable insulation layer of coal mine electric drill that the present invention proposes, comprises the steps:
[0022]S1. Mixing modified polyimide, silicone resin, polytetrafluoroethylene powder, fluorocarbon resin, nitrile rubber, EPDM rubber, linear low density polyethylene and polymethyl methacrylate Obtain primary mixed rubber; wherein, the temperature of primary mixing is 70-80°C, and the time of primary mixing is 6-12min;
[0023] S2. Add carbon black, nano-calcium carbonate, nano-zinc oxide, nano-magnesium hydroxide, carbon nanotubes, mica powder, aluminum hydroxide, silane coupling agent KH-570 and modified fillers to the primary mixing rubber in S1 Carry out secondary mixing to obtain secondary mixing rubber, wherein, the temperature of the second mixing is 80-90°C, and the time of the second mixing is 8-12min; add anti-aging agent RD, anti-aging Agent H, chloranil and accelerator DM were mixed three ...
Embodiment 1
[0029] refer to figure 2 , a kind of coal mine electric drill cable that the present invention proposes, comprises power line core conductor 1, control line core conductor 2, monitoring line core conductor 3, insulating layer 4, semi-conductive shielding layer 5, monitoring line core conductor outer sheath 6, An inner sheath 7, a reinforcing layer 8 and an outer sheath 9, the outer circumference of the power core conductor 1 and the control core conductor 2 are wrapped with an insulating layer 4, and the outer circumference of the insulating layer 4 is wrapped with a semi-conductive shielding layer 5 , the outer periphery of the semi-conductive shielding layer 5 is arranged with a plurality of monitoring core conductors 3, the outer periphery of the monitoring core conductors 3 is wrapped with a monitoring core conductor outer sheath 6, and the monitoring core conductor outer sheath 6 The outer periphery of the semi-conductive shielding layer 5 is wrapped with an inner sheath...
Embodiment 2
[0037] refer to figure 2 , a kind of coal mine electric drill cable that the present invention proposes, comprises power line core conductor 1, control line core conductor 2, monitoring line core conductor 3, insulating layer 4, semi-conductive shielding layer 5, monitoring line core conductor outer sheath 6, An inner sheath 7, a reinforcing layer 8 and an outer sheath 9, the outer circumference of the power core conductor 1 and the control core conductor 2 are wrapped with an insulating layer 4, and the outer circumference of the insulating layer 4 is wrapped with a semi-conductive shielding layer 5 , the outer periphery of the semi-conductive shielding layer 5 is arranged with a plurality of monitoring core conductors 3, the outer periphery of the monitoring core conductors 3 is wrapped with a monitoring core conductor outer sheath 6, and the monitoring core conductor outer sheath 6 The outer periphery of the semi-conductive shielding layer 5 is wrapped with an inner sheath...
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