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Water seal hot melt adhesive for cables and application thereof

A water-sealing and hot-melt adhesive technology, which is applied in the direction of submarine cables, insulated cables, cables, etc., can solve the problem that water penetration cannot be completely prevented

Inactive Publication Date: 2015-08-05
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 seal hot melt adhesive for cables and application thereof
  • Water seal hot melt adhesive for cables and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Example 1 Water-sealing hot melt adhesive

[0052] A water-sealed hot melt adhesive for cables, which is composed of the following components by mass percentage:

[0053] APAO: 45%

[0054] Petroleum resin: 30%

[0055] Rosin resin: 10%

[0056] PB: 5%

[0057] Quartz powder: 10%

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

[0059] Among them, the petroleum resin is C5 resin, purchased from Lanzhou Petrochemical;

[0060] Among them, the rosin resin is EASTMAN hydrogenated rosin, purchased from Shanghai Shuixing Industrial, Foralyn 90;

[0061] PB (polybutene) has a molecular weight of 1400 and is purchased from Korea PB1400;

[0062] The quartz powder is 5000 meshes, purchased from Anhui Huaxing.

[0063] The preparation method of the hot melt adhesive:

[0064] According to the above composition ratio, first dry the quartz powder at 80°C for 24h; then heat APAO to 180°C, when the temperature is raised to 120°C, the electric mix...

Embodiment 2

[0065] Example 2 Water-sealed hot melt adhesive

[0066] A water-sealed hot melt adhesive for cables, which is composed of the following components by mass percentage:

[0067] APAO: 60%

[0068] Petroleum resin: 20%

[0069] Rosin resin: 10%

[0070] PB: 5%

[0071] Quartz powder: 5%

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

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

[0074] Among them, the rosin resin is EASTMAN hydrogenated rosin, purchased from Shanghai Shuixing Industrial, For alyn 90;

[0075] PB (polybutene) has a molecular weight of 1400 and is purchased from Korea PB1400;

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

[0077] The second aspect of the present invention provides a method for preparing the hot melt adhesive:

[0078] The quartz powder is dried at 100°C for 48h; then APAO is heated to 180°C, when ...

Embodiment 3

[0079] Example 3 Water-sealed hot melt adhesive

[0080] A water-sealed hot melt adhesive for cables, which is composed of the following components by mass percentage:

[0081] APAO: 30%

[0082] Petroleum resin: 45%

[0083] Rosin resin: 5%

[0084] PB: 10%

[0085] Quartz powder: 10%

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

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

[0088] Among them, the rosin resin is EASTMAN hydrogenated rosin, purchased from Shanghai Shuixing Industrial, Foralyn 90;

[0089] PB (polybutene) has a molecular weight of 1400 and is purchased from Korea PB1400;

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

[0091] The second aspect of the present invention provides a method for preparing the hot melt adhesive:

[0092] The quartz powder is dried at 60°C for 48h; then APAO is heated to 160°C. When t...

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Abstract

Belonging to the technical field of cables, the invention relates to a water seal hot melt adhesive for cables and application thereof. The water seal hot melt adhesive for cables is composed of the following components by mass: 30%-60% of APAO, 15%-45% of petroleum resin, 5%-20% of rosin resin, 5-10% of PB, and 5%-10% of quartz powder. The invention also provides application of the hot melt adhesive in preparation of watertight cables. The longitudinal watertight cable developed by the invention reaches the purpose, can ensure normal work at an underwater depth of 1000 meters, and even if the cable is damaged, seawater cannot permeate into equipment or compartments along the cable.

Description

Technical field [0001] The invention relates to a hot melt adhesive filled and used in each structural gap of a longitudinal watertight cable and its application, and belongs to the technical field of cables. Background technique [0002] Longitudinal watertight cables are cables used for power and signal transmission in military ships, civil ships, underwater vehicles, marine detectors, water conservancy projects, oil platforms, tunnels and underground projects. [0003] The ordinary cables used at present achieve the waterproof function through the intact outer sheath. However, when used underwater, as long as the outer sheath is damaged a little, a large amount of water will penetrate into the cabin and enter the equipment along the length of the cable. At the same time, the seawater entering the cable will also corrode the cable, which will cause the entire cable to be scrapped or even damaged. Precision instruments and equipment connected by cables. The damage it caused was ...

Claims

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Application Information

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IPC IPC(8): C09J123/00C09J157/02C09J193/04C09J123/20C09J11/04H01B7/14H01B7/285
CPCY02A30/14
Inventor 张涛刘同启
Owner SHANGHAI JUNXIN SHIP TECH
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