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A super-soft, high-adhesion, high-temperature, flame-retardant, environmentally friendly single-core wire and its preparation method

A high-adhesion, high-temperature-resistant technology, used in circuits, electrical components, insulated cables, etc., can solve the problems of high price, high cost, complex process, etc., and achieve the effect of good softness and tight bonding

Active Publication Date: 2015-12-30
HUBEI AEROSPACE CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But its process is complicated, expensive, and the cost is extremely high

Method used

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  • A super-soft, high-adhesion, high-temperature, flame-retardant, environmentally friendly single-core wire and its preparation method
  • A super-soft, high-adhesion, high-temperature, flame-retardant, environmentally friendly single-core wire and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0021] see figure 1 , the ultra-soft, high-adhesion, high-temperature-resistant, flame-retardant, and environmentally friendly single-core wire of the present invention is composed of an inner conductor 1, a first insulating layer 2, and a second insulating layer 3 in sequence. In this embodiment, the inner conductor adopts a 24AWG wire gauge (cross-sectional area 0.204mm 2 ) Oxygen-free bare copper conductor, the stranded outer diameter is 0.59mm, and the conductor lay length is 18 times the conductor stranded outer diameter. The wire is twisted with oxygen-free copper with low resistance, which meets the requirements of the GB / T3956-2008 "Cable Conductor" standard.

[0022] The first insulating layer is a modified ethylene-acrylic acid copolymer, which is composed of the following materials and parts by weight: ethylene-vinyl acetate 18, polyethylene 15, hydrotalcite 6, flame retardant 9.6, 1010 antioxidant 0.5, Titanate coupling agent 0.5, wax 0.1, white oil 0.4, thickene...

Embodiment 2

[0026] see figure 1 , the super-soft, high-adhesion, high-temperature-resistant, flame-retardant, and environmentally friendly single-core wire of the present invention is composed of an inner conductor 1, a first insulating layer 2, and a second insulating layer 3 in sequence. In this embodiment, the inner conductor adopts a 24AWG wire gauge (cross-sectional area 0.204mm 2 ), twisted by 26 0.10mm tinned copper wires.

[0027] The first insulating layer is a modified ethylene-acrylic acid copolymer, which is composed of the following materials and parts by weight: ethylene-vinyl acetate 50, polyethylene 30, hydrotalcite 25, flame retardant 35, 1010 antioxidant 2, Titanate coupling agent 2, wax 1.5, white oil 2, thickener 2; when preparing, first weigh according to the proportion, mix and stir, refine at 130°C for 20 minutes, pass through 35+65 type double-layer The 35 extruders on the co-extrusion plastic extruder are extruded, and the thickness of the insulating layer is 0....

Embodiment 3

[0031] see figure 1 , the ultra-soft, high-adhesion, high-temperature-resistant, flame-retardant, and environmentally friendly single-core wire of the present invention is composed of an inner conductor 1, a first insulating layer 2, and a second insulating layer 3 in sequence. In this embodiment, the inner conductor adopts a 24AWG wire gauge (cross-sectional area 0.204mm 2 ) Oxygen-free bare copper conductor, the stranded outer diameter is 0.59mm, and the conductor lay length is 18 times the conductor stranded outer diameter. The wire is twisted with oxygen-free copper with low resistance, which meets the requirements of the GB / T3956-2008 "Cable Conductor" standard.

[0032] The first insulating layer is a modified ethylene-acrylic acid copolymer, which is composed of the following materials and parts by weight: ethylene-vinyl acetate 30, polyethylene 25, hydrotalcite 15, flame retardant 25, 1010 antioxidant 1.0, Titanate coupling agent 1.0, wax 0.8, white oil 1.5, thickene...

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Abstract

The invention discloses a supersoft environmentally-friendly single-core wire with high adhesive force, high temperature resistance and the flame-retardant function and a manufacturing method. The wire is sequentially composed of an inner conductor, a first insulating layer and a second insulating layer, wherein the first insulating layer is made of modified ethylene-acrylic copolymers; the second insulating layer is made of soft low-smoke zero-halogen irradiation crosslinking polyolefin of which the shore hardness is 60A; the first insulating layer and the second insulating layer are respectively extruded through an extruding machine in a mixing mode; the first insulating layer closely adheres to the outer side of the inner conductor, and the second insulating layer adheres to the surface of the first insulating layer; irradiation crosslinking is conducted on the wire after extrusion and sizing through an electron accelerator, the irradiation dose is 8Mrad, and the outer diameter of the wire is 1.40mm. The wire is good in softness, the insulating layers have viscosity, and therefore the wire is high in adhesive force, environmentally friendly, low in cost and simple in process, has high temperature resistance and the flame-retardant function, and can completely replace similar imported products.

Description

technical field [0001] The invention discloses a single-core electric wire and a preparation method thereof, and more particularly relates to a super-flexible, high-adhesion, high-temperature-resistant, flame-retardant, environmentally friendly single-core electric wire that can be repeatedly bent and wound, and the conductor and insulation will not move, and its preparation method. Background technique [0002] At present, high-temperature resistant wires on the market have been widely used in electrical and electronic equipment for internal and external wiring and other equipment. The main structure of its single-core insulation products is a common structure inner conductor + single-layer insulation material. Wire products with this structure have poor softness, hard wire, poor processing and bending performance. When the wire is processed and welded, it is easy to bounce off due to the hard wire, resulting in poor soldering, which affects the processing performance of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/04H01B7/295H01B3/44H01B13/14
Inventor 王宗祥牛涛黄俊文
Owner HUBEI AEROSPACE CABLE
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