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Water-repellency cold application filling paste used in optical cable and preparation method thereof

A technology of filling paste and water type, applied in the direction of fiber mechanical structure, etc., can solve the problems of unfavorable factors of optical cable quality, achieve high thixotropic index value and improve quality

Active Publication Date: 2012-12-19
SHANGHAI HONGHUI OPTICS COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in terms of the quality of protecting the optical cable, the former is better than the latter; because the latter (water-absorbing expansion type cable paste) will absorb moisture once it is exposed to the air, although it can block water for the optical cable, but Once the cable grease absorbs water and swells, some optical cables will be soaked in the cable grease after absorbing water for a long time, and as time goes by, it will have adverse factors on the quality of the optical cable

Method used

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  • Water-repellency cold application filling paste used in optical cable and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 100 grams of tackifier to 571 grams of hydrogenated white oil, heat and stir for 0.5 to 1 hour, add 40 grams of oil separation inhibitor, continue to heat and stir for 2 to 5 hours, and when the temperature rises to 150 ℃, Add 80 grams of thickening agent, continue to heat and stir, keep stirring when the temperature reaches 170 ° C, until the thickening agent is completely melted into the base material, then add 4 grams of antioxidant, fully stir for 0.5 to 1 hour, then mix the base material. The material is cooled down to 20 ℃ ~ 60 ℃, then 200 grams of thickener are added, and after fully stirring for 1 to 3 hours, 5 grams of anti-emulsion agent is added, and after fully stirring for 0.5 to 1 hour, a semi-fluid light yellow compound is obtained. After homogeneous grinding and vacuum degassing, the final product is obtained.

[0027] In the above-mentioned raw materials, the tackifier is selected from Shanghai Daopu Chemical International Trade Co., Ltd., the polyi...

Embodiment 2

[0030] Add 90 grams of tackifier to 575 grams of naphthenic rubber oil, heat and stir for 0.5 to 1 hour, add 45 grams of oil separation inhibitor, continue to heat and stir for 2 to 5 hours, when the temperature rises to 150 ° C , add 85 grams of thickening agent, continue to heat and stir, keep stirring when the temperature reaches 170 ° C, until the thickening agent is completely melted in the base material, then add 5 grams of antioxidant, and fully stir for 0.5 to 1 hour. Cool the base material to 20℃~60℃, then add 195 grams of thickener, fully return the material and stir for 1 to 3 hours, add 5 grams of anti-emulsion, and then fully stir for 0.5 to 1 hour to obtain a semi-fluid light yellow The composites were homogenized and degassed in vacuo to obtain the final product.

[0031] Among the above-mentioned raw materials, thickener, oil separation inhibitor, thickener, antioxidant, thickener and anti-emulsion are the same as those in Example 1, and other raw materials are...

Embodiment 3

[0034] Add 85 grams of tackifier to 580 grams of hydrogenated white oil, heat and stir for 0.5 to 1 hour, add 50 grams of oil separation inhibitor, continue to heat and stir for 2 to 5 hours, when the temperature rises to 150 ℃, Add 75 grams of thickening agent, continue to heat and stir, keep stirring when the temperature reaches 170 ° C, until the thickening agent is completely melted into the base material, then add 6 grams of antioxidant, fully stir for 0.5 to 1 hour, then mix the base material. The material is cooled down to 20℃~60℃, then 190 grams of thickener are added, and after fully returning the material and stirring for 1 to 3 hours, 14 grams of anti-emulsion agent is added, and after fully stirring for 0.5 to 1 hour, a semi-fluid light yellow compound is obtained. After homogeneous grinding and vacuum degassing, the final product is obtained.

[0035] Among the above-mentioned raw materials, thickener, oil separation inhibitor, thickener, antioxidant, thickener an...

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Abstract

The invention relates to a water-repellency cold application filling paste used in an optical cable. The paste mainly comprises: a base oil, an adhesion promoter, a oil separating inhibitor, a gelling agent, an antioxidant, a thickening agent and an anti-emulsion agent. The invention also provides a preparation method. By using the water-repellency cold application filling paste, the optical cable can have characteristics of water blocking, moisture protection, pressure resistance, buffer and the like under any environments and any climate conditions. And the filling paste also can bear a high / low temperature, have good resistance to saline water, demulsify (80 DEG C, 7d, with no emulsification and no disassembly), and possess a high thixotropic index value and the other characteristics. The filling paste can be used to fill in an air gap in various optical-cable loose sleeve or fill in combination of the above structure and other gaps of an optical cable element so as to prevent water or other fluids inflow or move to the optical cable. The water blocking, the moisture protection, the pressure resistance, the buffer and the like effects are provided for the optical cable so as toimprove quality of an optical cable product.

Description

technical field [0001] The invention relates to a cold-applied filling paste for optical cables and a preparation method thereof, in particular to a water-repellent cold-applied filling paste for optical cables and a preparation method thereof. Background technique [0002] Due to the difference in the structure of the optical cable and the use environment, the requirements for the performance of the cable paste are also different, especially in the domestic Sino-foreign joint ventures (such as: Sumitomo Electric in Japan, Samsung in South Korea, and Nanjing in the Netherlands, etc.), their production orders Mainly exported It is realized by the water performance (the optical cable used in China generally uses the water-swellable cable paste to prevent the optical cable from seeping into the water). [0003] The above two methods are fundamentally different. The water-repellent ointment is used to prevent the water seepage of the optical cable, and the filling degree of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/44
Inventor 沈江波
Owner SHANGHAI HONGHUI OPTICS COMM TECH
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