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Super absorbent expansion water blocking paste and preparation method thereof

A water-blocking paste and optical cable technology, which is applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of difficult cleaning, high density and large proportion of water-blocking paste, and achieve the effects of prolonging service life, improving quality, and reducing costs

Inactive Publication Date: 2017-02-15
WUXI FEITIAN GREASE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common problem of the high water-absorbing swelling water-blocking paste currently in use is that the proportion of the main raw material oil is too large (the proportion of oil is above 80%), resulting in a high density of the water-blocking paste and the defect that it is not easy to clean when jointing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] First add 8.0g high molecular polymer synthetic rubber to 70g polyalphaolefin, heat and stir for 1 to 2 hours, when the temperature rises to 200°C, add 0.72g 2,6-secondary butyl-4-methanol The mixture of base phenol and didodecyl alcohol ester was fully stirred for 1 to 1.5 hours, then cooled to 50°C to 60°C, and 7.5g of fumed white carbon black and 0.28g of 2-oxo-2-(2-benzene Base-5,6,7,8-tetrahydro-indolizine-3-yl)-acetamide derivatives, after fully feeding and stirring for 1 to 1.5 hours, add 1.0g fatty acid polyethylene glycol ester, after 1 to After 1.5 hours of high-speed dispersion at a speed of 1000-2800 rpm, a semi-fluid compound was obtained. After grinding and homogenizing, 12.5g of polyacrylate was added, stirred thoroughly for 0.5-1 hour, and vacuum degassed to finally obtain milky white paste compound.

[0030] The above raw materials are all commercially available products.

[0031] The final product: the appearance is milky white homogeneous paste, den...

Embodiment 2

[0033] First add 7.5g high molecular polymer synthetic rubber to 72g hydrogenated white oil, heat and stir for 1 to 2 hours, when the temperature rises to 200°C, add 0.66g 2,6-secondary butyl-4-methanol The mixture of base phenol and didodecyl alcohol ester was fully stirred for 1 to 1.5 hours, then cooled to 50°C to 60°C, and 7.5g of organobentonite and 0.34g of 2-oxo-2-(2-phenyl- 5,6,7,8-tetrahydro-indolizine-3-yl)-acetamide derivatives, after fully returning and stirring for 1 to 1.5 hours, add 1.5g of triethylhexyl phosphoric acid, after 1 to 1.5 hours, After high-speed dispersion at a speed of 1000-2800 rpm, a semi-fluid compound is obtained. After grinding and homogenizing, add 10.5g of polyacrylic acid salt, stir thoroughly for 0.5-1 hour, and vacuum degas to finally obtain a milky white paste Complex.

[0034] The above raw materials are all commercially available products.

[0035] The final product: the appearance is milky white homogeneous paste, density (20 ℃, g / ...

Embodiment 3

[0037] First add 7.7g high molecular polymer synthetic rubber to 71g polyalphaolefin, heat and stir for 1 to 2 hours, when the temperature rises to 200°C, add 0.68g 2,6-secondary butyl-4-methanol The mixture of base phenol and didodecyl alcohol ester was fully stirred for 1 to 1.5 hours, then cooled to 50°C to 60°C, and 7.1g of fumed white carbon black and 0.26g of 2-oxo-2-(2-benzene Base-5,6,7,8-tetrahydro-indolizine-3-yl)-acetamide derivatives, after fully feeding and stirring for 1 to 1.5 hours, add 1.26g polyacrylamide, after 1 to 1.5 hours, After high-speed dispersion at a speed of 1000 to 2800 rpm, a semi-fluid compound is obtained. After grinding and homogenizing, add 12.0g of polyacrylate, stir thoroughly for 0.5 to 1 hour, and vacuum degassing to obtain a milky white paste Complex.

[0038] The above raw materials are all commercially available products.

[0039] The final product: the appearance is milky white homogeneous paste, density (20 ℃, g / cm 3) 0.62±0.02, c...

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Abstract

The invention relates to super absorbent expansion water blocking paste and a preparation method thereof. The super absorbent expansion water blocking paste mainly comprises base oil, an oil separation inhibitor, an anti-oxidant, a thickening agent, a dispersant, a polymer water absorption expansion agent and an antifungal agent. The invention also provides a preparation method of the super absorbent expansion water blocking paste. The super absorbent expansion water blocking paste solves the problem that the existing traditional ointment (with density of 0.9g / ml) used in an aerial optical cable has large density so that the optical cable has large weight and is not easily constructed. The super absorbent expansion water blocking paste reduces an ointment filling amount so that a cost is reduced. The super absorbent expansion water blocking paste prevents water seepage of the optical cable under pressure and stress in any environment and under any climate conditions, provides good pressure resistance, water blocking, moisture prevention and buffering effects for the optical cable and improves optical cable product quality.

Description

technical field [0001] The invention relates to a material for cables, in particular to a high water-absorbing expansion water-blocking paste for optical cables and a preparation method thereof. Background technique [0002] With the rapid development of optical communication, the demand for optical cables is increasing day by day; the prosperity of optical communication has brought great convenience to people's daily life, and people's daily life (mobile phone, computer, TV, network, etc.) has been inseparable Open communication. [0003] It is well known in the optical cable industry that changes in the ambient environment can create an air pressure differential between the inside and outside of the plastic jacket tube. This often results in undirected diffusion of moisture from the outside of the fiber optic cable to the inside, which eventually leads to an undesirably high humidity inside the fiber optic cable, especially in conditions where the plastic jacket acts as t...

Claims

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Application Information

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IPC IPC(8): C10M169/06H01B7/288
CPCC10M169/06C10M2201/10C10M2205/003C10M2207/026C10M2207/289C10M2209/084C10M2209/104C10M2209/108C10M2215/223H01B7/288
Inventor 张群敏许华平
Owner WUXI FEITIAN GREASE
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