Heat-shrinkable heat-conducting cable accessory and preparation method thereof
A cable accessory and heat shrinking technology, applied in the field of heat shrinkable thermal conductive cable accessories and their preparation, can solve the problems of not considering heat dissipation, cable breakdown, creepage, etc., to ensure insulation effect, ensure normal operation, and ensure thermal conductivity. effect of effect
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Embodiment 1
[0037] (1) Masterbatch processing steps: 100 parts by weight of polyethylene, 10 parts of microcapsule red phosphorus, 45 parts of magnesium hydroxide coated with coupling agent, 2-(3,5-di-tert-butyl- 0.8 parts of 4-hydroxy-benzyl)-2-butyl-1,3-malonic acid bis(1,2,2,6,6-pentamethyl-4-piperidinyl) ester, tetrakis[methyl -3 parts of (3,5-di-tert-butyl-hydroxyphenyl) propionate] pentaerythritol ester, 6 parts of silane coupling agent, 8 parts of ethylene-vinyl acetate copolymer modified by maleic anhydride copolymer, silicon carbide 10 parts of boron nitride composite heat-conducting material are granulated by internal mixer or extruded by twin-screw extruder, wire drawing, air-cooled and granulated to form masterbatch granules;
[0038] (2) Extrusion step: Extrude the above-mentioned masterbatch granules through an extruder to extrude the semi-finished cable accessories;
[0039] (3) Irradiation step: irradiating the above-mentioned semi-finished cable accessories through an el...
Embodiment 2
[0043] (1) Masterbatch processing steps: 100 parts by weight of polyethylene, 14 parts of melamine cyanurate, 55 parts of aluminum hydroxide coated with a coupling agent, bis(2,2,6,6-tetra 1.2 parts of methyl-4-piperidinyl) sebacic anhydride, 4 parts of tris(2,4-di-tert-butyl)phenyl phosphite, 8 parts of titanate coupling agent, 5 parts of zinc stearate, horse 12 parts of ethylene-vinyl acetate copolymer modified by anhydride copolymer, 20 parts of silicon nitride and aluminum oxide composite heat-conducting material are granulated by internal mixer or extruded by twin-screw extruder, wire drawing, and air-cooled Pelletizing to form masterbatch granules;
[0044] (2) Extrusion step: Extrude the above-mentioned masterbatch granules through an extruder to extrude the semi-finished cable accessories;
[0045] (3) Irradiation step: irradiating the above-mentioned semi-finished cable accessories through an electron accelerator or a cobalt source or an ultraviolet light source;
...
Embodiment 3
[0049] (1) Processing steps of masterbatch: 100 parts by weight of polyethylene, 18 parts of microcapsule red phosphorus, 75 parts of magnesium hydroxide coated with coupling agent, succinic acid and 4-hydroxy-2,2 , 2 parts of polymer of 6,6-tetramethyl-1-piperidine ethanol, 6 parts of tetrakis[methyl-(3,5-di-tert-butyl-hydroxyphenyl) propionate] pentaerythritol ester, stearic acid 5 parts of magnesium, 8 parts of coloring agent, 8 parts of aluminate coupling agent, 28 parts of ethylene-vinyl acetate copolymer modified by maleic anhydride copolymer, 10 parts of silicon carbide and boron nitride composite thermal conductive material, trihydroxy 1 part of methyl propane triacrylate is granulated by internal mixer or extruded by twin-screw extruder, wire drawing, air-cooled and granulated to form masterbatch granules;
[0050] (2) Extrusion step: Extrude the above-mentioned masterbatch granules through an extruder to extrude the semi-finished cable accessories;
[0051] (3) Irra...
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