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Thermal-shrinkage-type insulation anode exhaust sealing cap and preparation method thereof

A heat-shrinkable, heat-shrinkable layer technology, applied in the direction of electrical components, cable/conductor manufacturing, power cables, etc., can solve problems such as moisture cannot be excluded, and achieve the effects of easy installation, high flame retardancy, and good waterproof and sealing performance

Active Publication Date: 2012-05-02
江苏达胜热缩防护用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Before some cables are sealed at the end, due to some reasons, there is moisture inside, and the moisture cannot be eliminated after ordinary heat-shrinkable sealing caps are sealed, so we have developed and designed heat-shrinkable sealing caps that can be vented. In addition to the characteristics of ordinary caps, it also has the function of exhaust

Method used

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  • Thermal-shrinkage-type insulation anode exhaust sealing cap and preparation method thereof
  • Thermal-shrinkage-type insulation anode exhaust sealing cap and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Weigh: 20 parts of ethylene vinyl acetate, 80 parts of high-pressure low-density polyethylene, stir and mix evenly to obtain the polyolefin mixed resin of the present invention.

[0041] Weigh: 30 parts of magnesium hydroxide, 60 parts of aluminum hydroxide, and 5 parts of coated red phosphorus, stir and mix evenly to obtain the halogen-free composite flame retardant of the present invention.

[0042] Weigh: 20 parts of 1010 antioxidant, 20 parts of AMPTMA sensitizer, 20 parts of 303 brightener, stir and mix evenly to obtain other additives of the present invention.

[0043] Weigh 40 parts of the above-mentioned polyolefin mixed resin, 30 parts of halogen-free composite flame retardant, and 15 parts of other additives, mix the polyolefin mixed resin, halogen-free composite flame retardant and other additives evenly, melt and co- Mixing, the particles are obtained by a single-screw extruder; the prepared particles are injection-molded by an injection molding machine; the...

Embodiment 2

[0047] Weigh: 30 parts of ethylene vinyl acetate, 70 parts of high-pressure low-density polyethylene, stir and mix evenly to obtain the polyolefin mixed resin of the present invention.

[0048] Weigh: 50 parts of magnesium hydroxide, 40 parts of aluminum hydroxide, and 10 parts of coated red phosphorus, stir and mix evenly to obtain the halogen-free composite flame retardant of the present invention.

[0049] Weighing: 10 parts of 1010 antioxidant, 30 parts of sensitizer triallyl isocyanurate, brightener di(2,2,6,6-tetramethyl-3-piperidinylamino)-m 10 parts of phthalamide, stir and mix evenly to obtain other additives of the present invention.

[0050] By weighing 50 parts of the above-mentioned polyolefin mixed resin, 25 parts of halogen-free composite flame retardant, and 25 parts of other additives, the method described in Example 1 can be used to obtain the heat-shrinkable insulating anode vent cap of the present invention.

Embodiment 3

[0052] Weigh: 25 parts of ethylene vinyl acetate, 75 parts of high-pressure low-density polyethylene, stir and mix evenly to obtain the polyolefin mixed resin of the present invention.

[0053] Weigh: 40 parts of magnesium hydroxide, 50 parts of aluminum hydroxide, and 8 parts of coated red phosphorus, stir and mix evenly to obtain the halogen-free composite flame retardant of the present invention.

[0054]Weigh: 15 parts of 1010 antioxidant, 25 parts of AMPTMA sensitizer, 15 parts of 303 brightener, stir and mix evenly to obtain other additives of the present invention. Obviously, in the present invention, the sensitizer and brightener can also be selected from other raw materials commonly used in this industry as mentioned above, which will not affect the performance of the final product.

[0055] By weighing 45 parts of the above-mentioned polyolefin mixed resin, 28 parts of halogen-free composite flame retardant, and 21 parts of other additives, the method described in Ex...

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Abstract

The invention discloses a thermal-shrinkage-type insulation anode exhaust sealing cap and a preparation method thereof. The sealing cap is composed of an inner layer and an outer layer, wherein the inner layer is a hot melt adhesive layer, the outer layer is a thermal shrinkage layer, and the end part of the sealing cap is connected with a one-way valve; the material of the thermal shrinkage layer is composed of the following components in parts by weight: 40-50 parts of polyolefine interfusion resin, 25-30 parts of no halogen composite flame retardant and 15-25 parts of other assistants; thepolyolefine interfusion resin is composed of the following components in parts by weight: 20-30 parts of ethylene vinyl acetate and 70-80 parts of high-pressure low-density polyethylene; the halogen composite flame retardant is composed of the following components in parts by weight: 30-50 parts of magnesium hydroxide, 40-60 parts of aluminum hydroxide, and 5-10 parts of coating red phosphorus; and the other assistants are composed of the following components in parts by weight: 1-2 parts of an anti oxidant, 2-3 parts of sensitizing agent, and 1-2 parts of brightening agent. The sealing cap provided by the invention has a seal moisture proof and exhaust protection function.

Description

technical field [0001] The invention relates to an insulating anode sealing cap and a preparation method thereof, in particular to a heat-shrinkable insulating anode exhaust sealing cap and a preparation method thereof. Background technique [0002] With the upgrading of power products, power cable accessories are also updated. Before the cables leave the factory, the waterproof seals at the ends of the cables used to be sealed with rubber caps or tapes, but are now replaced by heat-shrinkable insulating anode caps. Before some cables are sealed at the end, due to some reasons, there is moisture inside, and the moisture cannot be eliminated after ordinary heat-shrinkable sealing caps are sealed, so we have developed and designed heat-shrinkable sealing caps that can be vented. In addition to the characteristics of ordinary caps, it also has the function of exhaust. It is easy to install, has excellent performance, is economical and practical, and is widely used. Contents...

Claims

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Application Information

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IPC IPC(8): H01B9/00H01B13/00
Inventor 张志强王明志
Owner 江苏达胜热缩防护用品有限公司
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