High and low temperature resistant communication cable

A communication cable, high and low temperature resistance technology, applied in the direction of communication cables, insulated cables, cables, etc., can solve the problems of aging, deformation and even fracture and coking of the protective layer, achieve high heat resistance, improve high and low temperature resistance, and improve mechanical properties performance effect

Active Publication Date: 2017-12-05
SUZHOU YIHUA ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In order to ensure the safe use of the cable, it should be ensured that the cable is used within its applicable environmental range. When the cable is in the ambient temperature condition within its applicable acute temperature range, the protective layer of the cable will adapt to the deformation of the cable core. Deformation to ensure the quality and safety of the cable; when the cable is exposed to an ambient temperature that exceeds its adaptable ambient temperature, it will accelerate the aging, deformation or even breakage of its protective layer, coking or even cause a dark fire, resulting in a fire hazard

Method used

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  • High and low temperature resistant communication cable
  • High and low temperature resistant communication cable
  • High and low temperature resistant communication cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] like figure 1 As shown, this embodiment discloses a communication cable with high and low temperature resistance, which includes an outer sheath 10, a steel tape armor layer 20, an inner sheath 30, a heat insulation layer 40, and a braided shielding layer arranged sequentially from outside to inside. layer 50, several strands of stranded insulating core wires 60, and a flame-retardant filling tape 70 is arranged between the stranded insulating core wires 60, and the stranded insulating core wires 60 are covered by wrapping polyester tape, and the stranded insulating core wires 60 Grease is filled between the twisted insulated core wire 60 and the wrapped polyester tape, and the twisted insulated core wire 60 is covered with an insulating layer.

[0025] In Embodiment 1, the above-mentioned outer sheath 10 and inner sheath 30 are polyester film layers, the insulation layer of the stranded insulated core wire 60 contains the material of the polyester film layer, and the f...

Embodiment 2

[0036] The cable structure in embodiment 2 is the same as in embodiment 1, and the polyester film layer material formula is as shown in table 2 below:

[0037] The material formula of polyester film layer in the embodiment 2 of table 2

[0038] Component

Content (parts by weight)

polypropylene

80

Polyacrylate

30

cross-linking agent

1

Fluorosilicone rubber

5

Silicon calcium magnesium

5

coupling agent

0.05

[0039] Wherein, the cross-linking agent and polypropylene undergo a cross-linking reaction to obtain cross-linked polypropylene, and the cross-linking agent and polyacrylate undergo a cross-linking reaction to obtain cross-linked polyacrylate;

[0040] A coupling reaction occurs between the coupling agent and fluorosilicone rubber to obtain coupled fluorosilicone rubber, and a coupling reaction occurs between the coupling agent and silicon-calcium-magnesium powder to obtain coupled silicon-calcium-...

Embodiment 3

[0046] The cable structure in Example 3 is the same as in Example 1, and the formulation of the polyester film material is shown in Table 3 below:

[0047] The material formula of polyester film layer in table 3 embodiment 3

[0048] Component

Content (parts by weight)

polypropylene

50

Polyacrylate

37

cross-linking agent

0.75

Fluorosilicone rubber

3

Silicon calcium magnesium

3

coupling agent

0.03

[0049] Wherein, the cross-linking agent and polypropylene undergo cross-linking reaction to obtain cross-linked polypropylene, and the cross-linking agent and polyacrylate undergo cross-linking reaction to obtain cross-linked polyacrylate;

[0050] The coupling reaction between the coupling agent and the fluorosilicone rubber is carried out to obtain the coupled fluorosilicone rubber, and the coupling reaction between the coupling agent and the silicon-calcium-magnesium powder is carried out to obtain the ...

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PUM

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Abstract

The invention provides a high and low temperature resistant communication cable. An inner sheath and an outer sheath of the high and low temperature resistant communication cable are polyester film layers; the material formula of the polyester film layers comprises polypropylene, polyacrylate, a cross-linking agent, fluorinated silicone rubber, silicon-calcium-magnesium powder and a coupling agent; cross-linking reaction is carried out on the cross-linking agent and the polypropylene to obtain crosslinked polypropylene; cross-linking reaction is carried out on the cross-linking agent and the polyacrylate to obtain crosslinked polyacrylate; coupling reaction is carried out on the coupling agent and the fluorinated silicone rubber to obtain coupled fluorinated silicone rubber; and coupling reaction is carried out on the coupling agent and the silicon-calcium-magnesium powder to obtain the coupled silicon-calcium-magnesium powder. The mobility and the mechanical property of the overall resin can be improved by the polypropylene; the high and low temperature resistant characteristics of the resin can be greatly improved by the crosslinked polypropylene and polyacrylate; the dispersity of the fluorinated silicone rubber in a polymer is improved by the coupled fluorinated silicone rubber; the dispersity of the silicon-calcium-magnesium powder in the polymer is improved by the coupled silicon-calcium-magnesium powder; and the polyester film layers have good mechanical property and high and low temperature resistant characteristics.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a communication cable with high and low temperature resistance. Background technique [0002] In order to ensure the safe use of the cable, it should be ensured that the cable is used within its applicable environmental range. When the cable is at an ambient temperature within its applicable acute temperature range, the protective layer of the cable will adapt to the deformation of the cable core. Deformation to ensure the quality and safety of the cable; when the cable is exposed to an ambient temperature that exceeds its adaptable ambient temperature, it will accelerate the aging, deformation or even breakage of its protective layer, coking or even cause a dark fire and cause a fire hazard. [0003] Use in some extreme environments, such as extremely cold and hot environments, puts forward more stringent requirements for power signal transmission, especially cables n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B11/00H01B7/28H01B7/29H01B7/18
CPCH01B7/18H01B7/28H01B7/29H01B11/00
Inventor 王维林朱亚明戴雄新
Owner SUZHOU YIHUA ELECTRICAL
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