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High-strength anti-aging optical fiber outer layer coating and preparation method thereof

An aging-resistant and high-strength technology, used in polyester coatings, epoxy resin coatings, coatings, etc., can solve problems such as poor compatibility, easy agglomeration, and affecting the overall performance of outer fiber coatings

Active Publication Date: 2021-06-08
上海先权光纤科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Optical fiber outer layer coatings disclosed in the prior art generally include: prepolymers, reactive diluents, photoinitiators, additives, inorganic fillers, etc., but due to poor compatibility between inorganic fillers and optical fiber coatings, they are easy to agglomerate, It often affects the comprehensive performance of the outer optical fiber coating, which brings inconvenience to practical application

Method used

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  • High-strength anti-aging optical fiber outer layer coating and preparation method thereof
  • High-strength anti-aging optical fiber outer layer coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A preparation method of a high-strength aging-resistant optical fiber outer layer coating, comprising the following steps:

[0035] (1) Take paraformaldehyde and melamine, mix and stir for 20 minutes, and adjust the pH to 8.5 with triethylamine to obtain material A; wherein the molar ratio of melamine to formaldehyde is 1:7;

[0036] Take titanium dioxide and deionized water, add dispersant, ultrasonically disperse for 30 minutes, add material A, heat up to 80°C, react at constant temperature for 1.5 hours, add hexafluorobutanol, adjust pH to 5.5 with nitric acid, continue to react for 8 hours, adjust pH to 8 , cooled, collected by centrifugation, washed with deionized water, and dried in vacuum to obtain modified titanium dioxide;

[0037] (2) Take linseed oil and glycerin, mix them evenly, heat up to 110°C, add alcoholysis catalyst, continue to heat up to 230°C, heat preservation reaction until the ethanol tolerance is qualified, then cool down, and add phthalic anhyd...

Embodiment 2

[0043] A preparation method of a high-strength aging-resistant optical fiber outer layer coating, comprising the following steps:

[0044] (1) Take paraformaldehyde and melamine, mix and stir for 25 minutes, and adjust the pH to 8.5 with triethylamine to obtain material A; wherein the molar ratio of melamine to formaldehyde is 1.1:7;

[0045] Take titanium dioxide and deionized water, add a dispersant, ultrasonically disperse for 32 minutes, add material A, heat up to 85°C, and react at a constant temperature for 1.3 hours, add hexafluorobutanol, adjust the pH to 5.5 with nitric acid, continue the reaction for 9 hours, and adjust the pH to 8.5 , cooled, collected by centrifugation, washed with deionized water, and dried in vacuum to obtain modified titanium dioxide;

[0046] (2) Take linseed oil and glycerin, mix well, heat up to 115°C, add alcoholysis catalyst, continue to heat up to 235°C, keep warm until the ethanol tolerance is qualified, then cool down, cool down to 175°C...

Embodiment 3

[0052] A preparation method of a high-strength aging-resistant optical fiber outer layer coating, comprising the following steps:

[0053] (1) Take paraformaldehyde and melamine, mix and stir for 20-30min, and adjust the pH to 8.5 with triethylamine to obtain material A; wherein the molar ratio of melamine to formaldehyde is 1.2:7;

[0054] Take titanium dioxide and deionized water, add dispersant, ultrasonically disperse for 30-35min, add material A, heat up to 90°C, react at constant temperature for 1h, add hexafluorobutanol, adjust pH to 5.5 with nitric acid, continue to react for 10h, adjust pH to 9. Cool, collect by centrifugation, wash with deionized water, and dry in vacuum to obtain modified titanium dioxide;

[0055] (2) Take linseed oil and glycerin, mix well, heat up to 120°C, add alcoholysis catalyst, continue to heat up to 230°C, keep warm until the ethanol tolerance is qualified, then cool down, and add phthalic anhydride after cooling down to 180°C , xylene, he...

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Abstract

The invention discloses a high-strength anti-aging optical fiber outer layer coating and a preparation method thereof. The optical fiber outer layer coating is prepared from the following components in parts by weight: 4 to 5 parts of modified titanium dioxide, 8 to 12 parts of epoxy modified alkyd resin, 15 to 18 parts of organic silicon modified epoxy acrylate, 8 to 10 parts of trimethylolpropane triacrylate, 3 to 5 parts of tripropylene glycol diacrylate, 20 to 30 parts of reactive diluent, 4 to 6 parts of photoinitiator, 2 to 3 parts of flatting agent, 1 to 2 parts of defoaming agent and 2 to 3 parts of antioxidant. The modified titanium dioxide is mainly prepared from paraformaldehyde, melamine, hexafluorobutanol and titanium dioxide through a reaction. According to the high-strength anti-aging optical fiber outer layer coating and the preparation method thereof, the process design is reasonable, the operation is simple, and the prepared outer layer coating not only has excellent mechanical property and anti-aging property, but also is high in strength and good in water resistance, can be widely applied to optical fiber outer layer coating, and has relatively high practicability.

Description

technical field [0001] The invention relates to the technical field of optical fiber coatings, in particular to a high-strength anti-aging optical fiber outer layer coating and a preparation method thereof. Background technique [0002] With the advancement and development of science and technology, the development of optical fiber is becoming more and more rapid, and the research on optical fiber coating is getting more and more in-depth. Optical fiber coating is to prevent the pollution of dust when the glass optical fiber is drawn out A layer of elastic coating cured by ultraviolet light, generally using acrylate, silicone rubber, nylon and other components, used to protect the surface of the optical fiber from moisture and external force scratches, endow the optical fiber with improved microbending performance, and reduce the microbending of the optical fiber Additional loss function. [0003] Optical fiber outer layer coatings disclosed in the prior art generally inclu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D167/08C09D7/62
CPCC09D163/10C09D7/62C08L2201/08C08K2003/2241C08L67/08C08K9/10C08K3/22
Inventor 沈亚汝郑超王朝磊
Owner 上海先权光纤科技有限公司
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