Water sealing hot melt adhesive for cable and application thereof

A hot-melt adhesive and cable technology, which is applied in the manufacture of submarine cables, insulated cables, cables/conductors, etc., can solve the problem of not being able to completely prevent water penetration

Inactive Publication Date: 2015-06-17
SHANGHAI JUNXIN SHIP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the cable is partially damaged, the water will chemically react with the powder in it to make the powder expand and fill the cable gap, so as to achieve the purpose of water blocking, but the biggest defect of this technology is that it cannot completely prevent the penetration of water. A small amount of water is allowed to seep in, which will seep through the entire cable over time

Method used

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  • Water sealing hot melt adhesive for cable and application thereof
  • Water sealing hot melt adhesive for cable and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1 water sealing hot melt adhesive

[0052] A cable water sealing hot melt adhesive is composed of the following components in mass percentage:

[0053] APAOs: 45%

[0054] Petroleum resin: 30%

[0055] Rosin resin: 10%

[0056] PB: 5%

[0057] Quartz powder: 10%

[0058] Among them, the molecular weight of APAO is 65000, purchased from HUNTSMAN, USA, APAO RT 2723;

[0059] Wherein, petroleum resin is C5 resin, purchased from Lanzhou Petrochemical;

[0060] Wherein, the rosin resin is EASTMAN hydrogenated rosin, purchased from Shanghai Shuixing Industry, Foralyn 90;

[0061] PB (polybutene) molecular weight is 1400, purchased from Korea PB1400;

[0062] Quartz powder is 5000 mesh, purchased from Anhui Huaxing.

[0063] The preparation method of above-mentioned hot melt adhesive:

[0064] According to the above composition ratio, first dry the quartz powder at 80°C for 24 hours; then heat the APAO to 180°C, and when the temperature rises to 120°C, the el...

Embodiment 2

[0065] Embodiment 2 water sealing hot melt adhesive

[0066] A cable water sealing hot melt adhesive is composed of the following components in mass percentage:

[0067] APAO: 60%

[0068] Petroleum resin: 20%

[0069] Rosin resin: 10%

[0070] PB: 5%

[0071] Quartz powder: 5%

[0072] Among them, the molecular weight of APAO is 65000, purchased from HUNTSMAN, USA, APAO RT 2723;

[0073] Wherein, the petroleum resin is a C5 and C9 blended resin with a mass ratio of 1:1, purchased from Lanzhou Petrochemical;

[0074] Wherein, the rosin resin is EASTMAN hydrogenated rosin, purchased from Shanghai Shuixing Industry, Foralyn 90;

[0075] PB (polybutene) molecular weight is 1400, purchased from Korea PB1400;

[0076] Quartz powder is 8000 mesh, purchased from Anhui Huaxing.

[0077] The second aspect of the present invention provides the preparation method of above-mentioned hot melt adhesive:

[0078] First dry the quartz powder at 100°C for 48 hours; then heat the APAO ...

Embodiment 3

[0079] Embodiment 3 water sealing hot melt adhesive

[0080] A cable water sealing hot melt adhesive is composed of the following components in mass percentage:

[0081] APAO: 30%

[0082] Petroleum resin: 45%

[0083] Rosin resin: 5%

[0084] PB: 10%

[0085] Quartz powder: 10%

[0086] Among them, the molecular weight of APAO is 65000, purchased from HUNTSMAN, USA, APAO RT 2723;

[0087] Wherein, the petroleum resin is a C5 and C9 blended resin with a mass ratio of 1:1, purchased from Lanzhou Petrochemical;

[0088] Wherein, the rosin resin is EASTMAN hydrogenated rosin, purchased from Shanghai Shuixing Industry, Foralyn 90;

[0089] PB (polybutene) molecular weight is 1400, purchased from Korea PB1400;

[0090] Quartz powder is 8000 mesh, purchased from Anhui Huaxing.

[0091] The second aspect of the present invention provides the preparation method of above-mentioned hot melt adhesive:

[0092] First dry the quartz powder at 60°C for 48 hours; then heat the APAO ...

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PUM

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Abstract

The invention relates to water sealing hot melt adhesive for a cable and application thereof and belongs to the technical field of cables. The water sealing hot melt adhesive for the cable is composed of, by mass, 30% to 60% of APAO, 15% to 45% of petroleum resin, 5% to 20% of rosin resin, 5% to 10% of PB and 5% to 10% of quartz powder. The hot melt adhesive is applied to production of the water tightness cable. Due to the fact that the application purpose is achieved through the developed longitudinal water tightness cable, it can be guaranteed that the cable still can work normally at the depth of 1000 m underwater, and seawater can not seep into equipment or cabins along the cable even when the cable is broken.

Description

technical field [0001] The invention relates to a hot-melt adhesive used for filling in each structure gap of a longitudinal watertight cable and an application thereof, belonging to the technical field of cables. Background technique [0002] Longitudinal watertight cables are cables for power and signal transmission used in military ships, civil ships, underwater vehicles, ocean detectors, water conservancy projects, oil platforms, tunnels and underground projects. [0003] The common cable currently used is through the integrity of the outer sheath to achieve the waterproof function. However, when used underwater, as long as the outer sheath is slightly damaged, a large amount of water will seep into the cabin and equipment along the length of the cable. At the same time, seawater entering the cable will also corrode the cable and cause the entire cable to be scrapped or even damaged. Precision instruments and equipment connected by cables. The damage it caused was enor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/14H01B7/285H01B13/00H01B13/32C09J123/00C09J157/02C09J193/04C09J123/20C09J11/04
CPCY02A30/14
Inventor 张涛刘同启
Owner SHANGHAI JUNXIN SHIP TECH
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