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A kind of UV-curable optical fiber inner coating coating composition and preparation method thereof

An inner coating, UV light technology, applied in coatings, polyurea/polyurethane coatings, etc.

Active Publication Date: 2018-08-28
瑞通高分子科技(浙江)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the existing UV-curable optical fiber inner coating, the invention discloses a UV-curable optical fiber inner coating composition and a preparation method thereof, which can be used as an optical fiber inner coating

Method used

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  • A kind of UV-curable optical fiber inner coating coating composition and preparation method thereof
  • A kind of UV-curable optical fiber inner coating coating composition and preparation method thereof
  • A kind of UV-curable optical fiber inner coating coating composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 Preparation of UV Curable Optical Fiber Inner Layer Coating

[0031] The coating is prepared according to the formula in Table 1.

[0032]

[0033] The above components are formulated into coatings, and the relevant indicators measured are: viscosity: 4500mpa.s / 25°C; fineness: 160mj / cm 2 (RAU95%); modulus: 0.82Mpa, tensile strength: 0.75Ma, elongation: 225%; glass transition temperature Tg: -51°C.

Embodiment 2

[0034] Example 2 Preparation of UV Curable Optical Fiber Inner Layer Coating

[0035] The coating is prepared according to the formula in Table 2.

[0036]

[0037]The above components are formulated into coatings, and the relevant indicators measured are: viscosity: 5000mpa.s / 25°C; fineness: 150mj / cm2 (RAU95%); modulus: 1.1Mpa, tensile strength: 0.95Ma, elongation: 195%; glass transition temperature Tg: -48°C.

Embodiment 3

[0038] Example 3 Preparation of UV Curable Optical Fiber Inner Layer Coating

[0039] The coating is prepared according to the formula in Table 3.

[0040]

[0041] The above components are formulated into coatings, and the relevant indicators measured are shown in the table below

[0042]

[0043] From the above test data, we can know that groups 1, 2, and 4 all use EMK initiators, and when the curing degree reaches 95%, the required energy is only 145mj / cm 2 , the third group uses the photoinitiator TPO / 819 (1:1), the required energy is only 195mj / cm 2 . It shows that the long-wave absorption of MEK initiator is particularly good, which is beneficial to curing. Groups 2, 3, and 4 have excellent glass bonding strengths, all greater than 0.65N, and the glass bonding strength of Group 1 is only 0.45N, which shows that the adhesives TMPTMP and PETMP of the present invention have good bonding properties In traditional binder A189.

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Abstract

The invention provides an ultraviolet-curable optical fiber internal coating composition and a preparation method thereof. The invention provides an ultraviolet-curable optical fiber internal coating composition; and in the coating, polyurethane acrylate is used as a main base material which is added with a dilution monomer, a photoinitiator, a drier and a binder, wherein the photoinitiator refers to an initiator absorbing 370-400nm ultraviolet and particularly refers to 4,4'-di(diethylamino)diphenyl ketone; and the binder particularly refers to one or both of sulfhydryl compound trimethylolpropane tri(3-thiohydracrylate) and pentaerythritol tetra(3-thiohydracrylate). The ultraviolet-curable optical fiber internal coating composition is quickly cured, the curing degree under the ultraviolet curing energy of not greater than 160mj / cm<2> can reach 95%, and the glass binding power of the film is greater than 0.65N when the relative humidity is 50%.

Description

technical field [0001] The invention belongs to the field of preparation of UV (ultraviolet light curing) coatings, and particularly relates to a preparation method of an ultraviolet light curing optical fiber inner coating. Background technique [0002] Optical fiber communication technology refers to a modern communication method that uses light waves as the carrier of information transmission, optical fiber as the medium of information transmission, and sends information point-to-point. Optical fibers are typically coated with two or more radiation curable coatings. These coatings are usually applied to the fiber in liquid form and then cured by exposure to radiation. The type of radiation useful for curing such coatings should be one capable of initiating polymerization of one or more radiation curable components of such coatings. Radiation suitable for curing such coatings is well known and includes ultraviolet light (hereinafter "UV") and electron beam ("EB"). Durin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D7/63C03C25/32
CPCC03C25/326C08K5/37C09D7/63C09D175/14
Inventor 余宗萍杨鹏飞黄世斌淳生前
Owner 瑞通高分子科技(浙江)有限公司