WO2014134849A1 - 一种光纤及该光纤的制造方法与鉴别方法 - Google Patents

一种光纤及该光纤的制造方法与鉴别方法 Download PDF

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Publication number
WO2014134849A1
WO2014134849A1 PCT/CN2013/073507 CN2013073507W WO2014134849A1 WO 2014134849 A1 WO2014134849 A1 WO 2014134849A1 CN 2013073507 W CN2013073507 W CN 2013073507W WO 2014134849 A1 WO2014134849 A1 WO 2014134849A1
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Prior art keywords
indicator
optical fiber
coating
color
fiber
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PCT/CN2013/073507
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English (en)
French (fr)
Inventor
于凯杰
池萍
严帅
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上海飞凯光电材料股份有限公司
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Publication of WO2014134849A1 publication Critical patent/WO2014134849A1/zh

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479Manufacturing methods of optical cables
    • G02B6/4482Code or colour marking
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02Optical fibres with cladding with or without a coating
    • G02B6/02395Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479Manufacturing methods of optical cables
    • G02B6/448Ribbon cables

Definitions

  • the present invention relates to the field of optical fibers, and in particular to an optical fiber and a method and method for fabricating the same. Background technique
  • Optical fiber is a barrel of optical fiber, a light-conducting tool that uses the principle of total reflection of light in fibers made of glass or plastic.
  • the beam is transmitted within the fiber, the signal is immune to electromagnetic interference, and the transmission is stable.
  • the optical fiber has the characteristics of reliable performance, high quality, high speed, low line loss and long transmission distance, and is suitable for high-speed networks and backbone networks.
  • the optical fiber generally includes a core and at least one coating over the core.
  • the core 1 includes a glass fiber 2 and a cladding 3 coated on the outside of the glass fiber 2.
  • Conventional fibers are typically coated with two layers of overlapping UV curable coatings which together form the undercoat layer.
  • the coating contacting the surface of the core in the undercoat layer is called the inner layer 4, and the coating covering the inner layer 4 is called the outer layer 5.
  • the outer layer 5 For marking the use of the optical fiber, etc., it is also possible to coat the outer layer 5 with a coating.
  • Layer of ink layer Referring to Figure 2, a plurality of fibers can be coated and taped, and the coating is referred to as a tape layer 7.
  • the resin used to form the inner layer 4 needs to meet low water penetration, has mechanical properties adapted to different environments, has a fast UV curing speed, has a long service life, and has a low glass transition temperature to ensure excellent low temperature resistance. Excellent requirements, good peeling performance, and small additional loss of fiber.
  • the resin used to form the outer layer 5 is required to impart good mechanical properties and hydrolysis resistance to the optical fiber, protect the optical fiber from external environmental damage, and requires a high modulus, a high glass transition temperature, and a good Water resistance and heat resistance.
  • the fiber coating coatings currently used on the market are basically the same in terms of the main structure of the resin used for the coating, and are difficult to distinguish by conventional means such as visual observation.
  • the diameter of the glass fiber is 125um
  • the outer layer 4 and the outer layer 5 are coated with a material diameter of 250um, which is very slender, and it is difficult for the fiber manufacturer to "lead" the obvious mark on the fiber. Therefore, if it is only for visual inspection, it is difficult to identify and distinguish the optical fiber, that is, It is the expert who will judge the fiber that is completely in two different levels of quality as "it looks exactly the same.”
  • optical fibers are usually distinguished by fiber identification technology.
  • the used fiber identification technology has a method for identifying a fiber coating by an infrared spectrum, specifically: adding a certain amount of a label (for example, acrylonitrile) to the fiber coating, according to the specific position of the fiber coating in the infrared spectrum.
  • the characteristic peaks are used to mark the fiber coating; there is also a method of marking the fiber coating by the difference in refractive index of the fiber coating.
  • the label used in the method of identifying the fiber coating by the infrared spectrum affects the performance of the fiber itself to some extent, and during the storage and use of the fiber.
  • the label of this kind will have a certain degree of volatilization, which will cause harm to the environment and the human body.
  • the method of marking the fiber coating by the difference of the refractive index of the fiber coating is cumbersome. Summary of the invention
  • an embodiment of the present invention provides an optical fiber, a manufacturing method thereof, and an authentication method.
  • the technical solution is as follows:
  • an optical fiber wherein at least one coating of the optical fiber contains a color developing indicator, and the color developing indicator is one of an acid-base indicator, a redox indicator, and a complexing indicator.
  • the color developing indicator is one of an acid-base indicator, a redox indicator, and a complexing indicator.
  • the acid-base indicator is methyl violet, picric acid, methyl green, cresol red, thymol blue, alizarin yellow R, alizarin red S, dimethyl yellow, methyl orange, bromine Phenol blue, Congo red, bromocresol green, methyl red, bromophenol red, bromocresol purple, bromothymol blue, neutral red, phenol red, cresol red, thymol blue, phenolphthalein, thymol
  • Dadan Huangzhong is methyl violet, picric acid, methyl green, cresol red, thymol blue, alizarin yellow R, alizarin red S, dimethyl yellow, methyl orange, bromine Phenol blue, Congo red, bromocresol green, methyl red, bromophenol red, bromocresol purple, bromothymol blue, neutral red, phenol red, cresol red, thymol blue, phenolphthalein, thymol
  • the redox indicator is diphenylamine, sodium diphenylamine sulfonate, methylene blue, neutral red, quinoline yellow, starch, malachite green, Lloyd's violet, phenanthroline-ferrous iron, acid green, patent blue V, One or more combinations of phenol, catechol, and resorcinol;
  • the complexing indicator is thiocyanate, chrome black T, xylenol orange, alizarin, calcium reagent, acid chrome purple methyl thymol blue, bromophenol red, aluminum reagent, arsenazo III One or more combinations.
  • the acid-base indicator is one or a combination of two of phenolphthalein and thymol; the redox indicator is catechol; and the complexing indicator is thiocyanate.
  • the color developing indicator has a mass of 0.0001% to 10% of the total mass of the coating.
  • the color indicator has a mass of from 0.01% to 0.1% of the total mass of the coating.
  • the coating comprises one or more combinations of an inner layer, an outer layer, and a tie layer of the optical fiber.
  • a method for fabricating the above optical fiber comprising: adding a color developing indicator to at least one of the prepared fiber coating materials, stirring until the color developing indicator is completely dissolved, a coating containing an indicator;
  • the coating containing the indicator and the coating of each of the other coatings are coated, drawn and cured to the surface of the core to form the optical fiber.
  • a method for identifying an optical fiber includes: intercepting a portion of an optical fiber, and stripping the coating of the optical fiber as a sample to be tested;
  • the sample to be tested is a fiber containing a color developing indicator.
  • the method for authenticating includes:
  • the sample to be tested is a fiber containing a color developing indicator.
  • the extracting agent is ethanol, methanol, acetone, toluene or tetrachloromethane.
  • the color developing agent includes an acidic aqueous solution or an alkaline aqueous solution, an acidic solution or an alkaline solution containing an oxidizing substance or a reducing substance, and contains Ca 2+ , Cd 2+ , Hg 2+ , Mg 2+ , Mn
  • a metal ion such as 2+ , Pb 2+ , Zn 2+ , Fe 3+ , Al 3+ , Ba 2+ or the like
  • a color reaction containing an oxidizing substance or The acidic solution or the alkaline solution of the reducing substance is subjected to a color reaction for the redox indicator contained in the fiber coating, and contains Ca 2+ , Cd 2+ , Hg 2+ , Mg 2+ , Mn 2+ ,
  • An acidic solution or an alkaline solution of metal ions such as Pb 2+ , Zn 2+ , Fe 3+ , Al 3+ , Ba 2+
  • the mass concentration of the effective substance in the color developing agent is 0.01 to 10%.
  • the method of marking an optical fiber by adding a chromogenic indicator to the fiber coating utilizes the principle that the chromogenic indicator will change color in a particular environment.
  • the indicator agent belongs to a class of chemical reagents, and its color may change under certain medium conditions, or may cause turbidity and precipitation, or may have a fluorescent phenomenon.
  • the indicator is usually used to check the acidity and alkalinity of the solution, to indicate the end point of the titration, to detect harmful substances in the environment, etc., and is generally classified into an acid-base indicator, a redox indicator, and a complexing indicator.
  • Acid-base indicator Indicates the change in the concentration of H + in the solution. It is an organic weak acid or an organic weak base. Its acidity and basicity have different colors.
  • Redox indicator It is an oxidizing agent or a reducing agent. Its oxidized form and reduced form have different colors. When it is oxidized (or reduced), it is discolored, indicating the change of solution potential.
  • the fiber coating is marked by adding a color indicator to the fiber coating to mark the fiber.
  • a color reaction occurs to cause the color developing liquid to develop color. Since other fibers do not have the property, the optical fiber can be easily identified by a color reaction, and the optical fiber can be easily marked and protection.
  • the color indicator is environmentally friendly and does not cause environmental pollution. Color development The reaction cylinder is quick and sensitive, and only a small amount of color indicator is required to develop color. Therefore, the color indicator is added in a small amount and does not have any influence on the performance of the fiber coating.
  • Figure 1 is a schematic view of the structure of the optical fiber
  • Figure 2 is a schematic cross-sectional view of a fiber optic ribbon.
  • the inner layer coating material is prepared by diluting one or more acrylate oligomers with a single or polyfunctional acrylate monomer to a solid content of 75% to 98%, and adding 2% to 20%.
  • the outer coating material is one or more epoxy acrylate lipid oligomers Or a polyfunctional acrylate monomer diluted to a solid content of 85% to 98%, 2% to 10% of one or more radical polymerization type photoinitiators and 0% to 5% of additives to form an optical fiber
  • the outer layer coating; and the layer coating is one or more epoxy acrylate oligomers diluted with a single or polyfunctional acrylate monomer to a solid content of 85% to 98%, added 2% to 10%
  • One or more of the free-radical polymerization type photoinitiators and 0% to 5% of the additives are made into an optical fiber with
  • the coating formulation is taken as an example to describe a method for preparing an optical fiber containing a color developing indicator in a coating layer and a method for identifying the same.
  • the method is also applicable to other coating formulations, and the coating formulation used in the embodiment of the present invention is not used. To limit the invention.
  • Phenolphthalein was added to the inner layer coating, and the added mass of the phenolphthalein was 0.0001% of the mass of the inner layer coating, and the mixture was stirred until the phenolphthalein was completely dissolved to obtain an inner layer coating containing phenolphthalein.
  • the inner coating containing phenolphthalein and the outer coating without any indicator are passed through the fiber drawing tower at a certain diameter, speed and energy.
  • the structure of 1 is subjected to coating and wire drawing to form the optical fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the sample to be tested is immersed in 1 ml of the color developing solution, and after standing for a while, it is allowed to stand for a while to observe that other types of optical fibers do not change color.
  • Example 2
  • the outer layer coating containing phenolphthalein and the inner layer coating without any indicator are applied through a fiber drawing tower at a certain diameter, speed and energy in accordance with the structure of Fig. 1 to be drawn and cured to form the optical fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the lg fiber is intercepted, and the coating outside the core of the fiber is peeled off as a sample to be tested; a sodium hydroxide aqueous solution having a mass concentration of 10% is used as a color developing solution;
  • the sample to be tested is immersed in 10 ml of the color developing solution, and after standing for a while, it is allowed to stand for a period of time, and other types of optical fibers do not change color.
  • Phenolphthalein is added to the layered coating, and the added mass of the phenolphthalein is 0.01% of the mass of the layered coating, and the mixture is stirred until the phenolphthalein is completely dissolved to obtain a layered coating containing phenolphthalein.
  • the phenolphthalein-containing layered coating is applied to the outer surface of the optical fiber 6 through a fiber drawing tower at a certain diameter, speed and energy according to the structure of Fig. 2, and is cured by wire drawing to form an optical fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the sample to be tested is immersed in 5 ml of the color developing solution, and is appropriately shaken for a while to observe that other types of optical fibers do not change color.
  • the thyme phenolphthalein was added to the inner layer coating, and the thyme phenolphthalein was added in an amount of 0.1% by mass of the inner layer coating, and stirred until the thymol phenolphthalate was completely dissolved to obtain an inner layer coating containing thymol phenolphthalein.
  • An inner coating containing thymolphthalein and an outer coating without any indicator are passed through the fiber drawing tower The determined diameter, velocity and energy are applied and drawn to cure according to the structure of Figure 1 to form the optical fiber.
  • the lg fiber is intercepted, and the coating outside the core of the fiber is peeled off as a sample to be tested; the aqueous solution of sodium hydroxide having a mass concentration of 0.1% is mixed with methanol in a ratio of 1:1 by volume to be mixed. Color liquid reserve;
  • the sample to be tested is immersed in 5 ml of the coloring liquid, and the color change of the coloring liquid is observed after being shaken for a period of time; Other types of optical fibers do not change color.
  • Thymol phenolphthalein was added to the outer coating, and the thyme phenolphthalein was added in an amount of 0.1% by mass of the outer coating, and stirred until the thymol phenol was completely dissolved to obtain an outer coating containing thymolphthalein.
  • the outer coating containing thymolphthalein and the inner coating without any indicator are applied through a fiber drawing tower at a predetermined diameter, speed and energy according to the structure of Fig. 1 to form a fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the lg fiber is intercepted, and the coating outside the core of the fiber core is peeled off as a sample to be tested; a sodium hydroxide aqueous solution having a mass concentration of 0.1% and methanol are mixed and mixed according to a volume ratio of 1:1, and then used as a color developing solution. Standby
  • the sample to be tested is immersed in 5 ml of the coloring liquid, and the color change of the coloring liquid is observed after being shaken for a period of time; Other types of optical fibers do not change color.
  • Thymol phenolphthalein is added to the layered coating, and the thyme phenolphthalein is added in an amount of 0.1% by weight of the layered coating, and is stirred until the thymol phenol is completely dissolved to obtain a layered coating containing thymolphthalein.
  • the layered coating containing thymolphthalein is passed through a fiber drawing tower at a certain diameter, speed and energy according to the structure of Fig. 2, coated on the outside of the optical fiber 6, and cured by wire drawing to form and carry the optical fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the sample to be tested is immersed in 5 ml of the coloring liquid, and the color change of the coloring liquid is observed after being shaken for a period of time; Other types of optical fibers do not change color.
  • Phenolphthalein and thymol phenolphthalein are added to the inner layer coating.
  • the added mass of phenolphthalein is 0.05% of the quality of the inner layer coating
  • the added mass of thyme phenolphthalein is 0.05% of the quality of the inner layer coating.
  • the inner coating of the indicator is mixed.
  • the inner coating containing the mixed indicator and the outer coating without any indicator are applied through a fiber drawing tower at a certain diameter, speed, and energy in accordance with the structure of Fig. 1 to form a wire to form the optical fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the lg fiber is intercepted, and the coating outside the core of the fiber core is peeled off as a sample to be tested; a sodium hydroxide aqueous solution having a mass concentration of 0.1% and methanol are mixed and mixed according to a volume ratio of 1:1, and then used as a color developing solution. Standby
  • the sample to be tested is immersed in 5 ml of the coloring liquid, and the color change of the coloring liquid is observed after being shaken for a period of time.
  • the color of the optical fiber coloring liquid provided by the embodiment of the present invention becomes lavender. Other types of fiber do not change color.
  • Phenolphthalein and thymol phenolphthalein are added to the outer coating.
  • the added mass of phenolphthalein is 0.05% of the quality of the outer coating
  • the added mass of thymol quinone is 0.05% of the quality of the inner coating.
  • the inner coating material to which no indicator is added and the outer layer coating containing the mixed indicator are coated and drawn at a certain diameter, speed and energy according to the structure of Fig. 1 through an optical fiber drawing tower to form the optical fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the lg fiber is intercepted, and the coating outside the core of the fiber core is peeled off as a sample to be tested; a sodium hydroxide aqueous solution having a mass concentration of 0.1% and methanol are mixed and mixed according to a volume ratio of 1:1, and then used as a color developing solution. Standby
  • the sample to be tested is immersed in 5 ml of the coloring liquid, and the color change of the coloring liquid is observed after being shaken for a period of time.
  • the color of the optical fiber coloring liquid provided by the embodiment of the present invention becomes lavender. Other types of fiber do not change color.
  • Phenolphthalein and thymol phenolphthalein are added to the layered coating.
  • the added quality of phenolphthalein is 0.05% of the quality of the layered coating
  • the added quality of the thymol phenolphthalein is 0.05% of the quality of the layered coating.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the lg fiber is intercepted, and the portion of the tape with the fiber is peeled off with a sharp knife as a sample to be tested;
  • the sample to be tested is immersed in 5 ml of the coloring liquid, and the color change of the coloring liquid is observed after being shaken for a period of time.
  • the color of the optical fiber coloring liquid provided by the embodiment of the present invention becomes lavender. Other types of fiber do not change color.
  • the catechol is added to the inner coating, and the catechol is added in an amount of 0.1% by mass of the inner coating, and stirred until the catechol is completely dissolved to obtain an inner coating containing catechol.
  • the inner coating containing catechol and the outer coating without any indicator are coated and drawn through a fiber drawing tower at a certain diameter, speed and energy according to the structure of Fig. 1 to form the optical fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the lg fiber is intercepted, and the coating outside the core of the fiber core is peeled off as a sample to be tested; the aqueous solution of iron chloride having a mass concentration of 0.1% is mixed with methanol in a ratio of 1:2 by volume to be used as a color developing solution.
  • the sample to be tested is immersed in 5 ml of the color developing solution, and after standing for a while, it is allowed to stand for a period of time to observe reddish brown, and other types of optical fibers do not change color.
  • Preparation of an outer coating of an optical fiber containing a color indicator Adding catechol to the outer coating, the addition quality of catechol is 0.1% of the mass of the outer coating, and stirring until the catechol is completely dissolved to obtain an outer coating containing catechol.
  • the inner layer coating without adding any indicator and the outer layer coating containing catechol are coated and cured by a fiber drawing tower at a certain diameter, speed and energy according to the structure of FIG. 1 to form the optical fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the lg fiber is intercepted, and the coating outside the core of the fiber is peeled off as a sample to be tested; the aqueous solution of iron chloride having a mass concentration of 0.1% is mixed with methanol in a ratio of 1:2, and then mixed as a color developing solution.
  • the sample to be tested is immersed in 5 ml of the color developing solution, and after standing for a while, it is allowed to stand for a period of time to observe reddish brown, and other types of optical fibers do not change color.
  • the quality of the addition of catechol is 0.1% of the quality of the layered coating, and stirring until the catechol is completely dissolved to obtain a layer containing catechol. coating.
  • the layered coating containing catechol is coated on the outside of the optical fiber 6 through a fiber drawing tower at a certain diameter, speed and energy according to the structure of Fig. 2, and is cured by wire drawing to form an optical fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the sample to be tested is immersed in 5 ml of the color developing solution, and after standing for a while, it is allowed to stand for a period of time to observe reddish brown, and other types of optical fibers do not change color.
  • Potassium thiocyanate was added to the inner layer coating, and the added mass of potassium thiocyanate was 0.1% of the mass of the inner layer coating, and the mixture was stirred until the potassium thiocyanate was completely dissolved to obtain an inner layer coating containing potassium thiocyanate.
  • the inner coating containing potassium thiocyanate and the outer coating without any indicator are coated and drawn through a fiber drawing tower at a certain diameter, speed and energy according to the structure of FIG. 1 to form the optical fiber.
  • the lg fiber is intercepted, and the coating outside the core of the fiber core is peeled off as a sample to be tested; the aqueous solution of iron chloride having a mass concentration of 0.1% is mixed with methanol in a ratio of 1:2 by volume to be used as a color developing solution.
  • the sample to be tested is immersed in 5 ml of the color developing solution, and after standing for a while, it is allowed to stand for a while to observe orange-red, and other kinds of optical fibers do not change color.
  • Potassium thiocyanate was added to the outer coating, and the added mass of potassium thiocyanate was 0.1% of the mass of the outer coating, and the mixture was stirred until the potassium thiocyanate was completely dissolved to obtain an outer coating containing potassium thiocyanate.
  • the inner coating material to which no indicator is added and the outer layer coating containing potassium thiocyanate are coated and drawn by a fiber drawing tower at a certain diameter, speed and energy according to the structure of Fig. 1 to form the optical fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the lg fiber is intercepted, and the coating outside the core of the fiber is peeled off as a sample to be tested; the aqueous solution of iron chloride having a mass concentration of 0.1% is mixed with methanol in a ratio of 1:2, and then mixed as a color developing solution.
  • the sample to be tested is immersed in 5 ml of the color developing solution, and after standing for a while, it is allowed to stand for a while to observe orange-red, and other kinds of optical fibers do not change color.
  • the mass of the potassium thiocyanate is 0.1% of the mass of the layered coating, and the potassium thiocyanate is completely dissolved to obtain a layer containing potassium thiocyanate. coating.
  • the layered coating containing potassium thiocyanate is applied to the outside of the optical fiber 6 through a fiber drawing tower at a certain diameter, speed and energy according to the structure of Fig. 2, and is cured by wire drawing to form an optical fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the added quality of potassium thiocyanate is the quality of the inner coating
  • the inner coating containing potassium thiocyanate and the outer coating without any indicator are applied through a fiber drawing tower at a certain diameter, speed and energy in accordance with the structure of Fig. 1 to form a stranded fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the lg fiber is intercepted, and the coating outside the core of the fiber is peeled off as a sample to be tested; the aqueous solution of iron chloride having a mass concentration of 0.1% is mixed with ethanol at a ratio of 100:99 by volume to be used as a color developing solution.
  • the sample to be tested is immersed in 5 ml of the color developing solution, and after standing for a while, it is allowed to stand for a while to observe orange-red, and other kinds of optical fibers do not change color.
  • Methyl red was added to the outer coating, and the added mass of methyl red was 0.1% of the mass of the outer coating, and the mixture was stirred until the methyl red was completely dissolved to obtain an outer coating containing methyl red.
  • the inner layer coating and the methyl red-containing outer layer coating to which no indicator was added were subjected to wire drawing and solidification at a certain diameter, speed and energy according to the structure of Fig. 1 through a fiber drawing tower to form the optical fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the lg fiber is intercepted, and the coating outside the core of the fiber core is peeled off as a sample to be tested; a sodium hydroxide aqueous solution having a mass concentration of 0.1% is mixed with acetone at a volume ratio of 1:2, and then mixed as a color developing solution.
  • the sample to be tested is immersed in 5 ml of the color developing solution, and after standing for a while, it is left to stand for a while to observe yellow, and other types of optical fibers do not change color.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the sample to be tested is immersed in 5 ml of the color developing solution, and after standing for a while, it is allowed to stand for a while to observe lavender, and other kinds of optical fibers do not change color.
  • the xylenol orange was added to the inner layer paint, and the added mass of xylenol orange was 0.1% of the mass of the inner layer coating, and the mixture was stirred until the xylenol orange was completely dissolved to obtain an inner layer coating containing xylenol orange.
  • the inner coating containing xylenol orange and the outer coating without any indicator are coated and drawn through a fiber drawing tower at a certain diameter, speed and energy according to the structure of Fig. 1 to form the optical fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the lg fiber is intercepted, and the coating outside the core of the fiber core is peeled off as a sample to be tested; the aqueous solution of ferric chloride having a mass concentration of 0.1% is mixed with tetrachloromethane at a volume ratio of 1:2, and then mixed. Color liquid reserve;
  • the sample to be tested is immersed in 5 ml of the color developing solution, and after standing for a while, it is allowed to stand for a while to be reddish, and other types of optical fibers do not change color.
  • the addition quality of the catechol in the inner coating is 0.05% of the inner coating quality
  • the addition quality of the catechol in the outer coating is the outer layer. 0.1% of the coating quality was stirred until the catechol was completely dissolved, and an inner coating containing catechol and an outer coating containing catechol were obtained. Coating the inner coating containing catechol and the outer layer containing catechol The material is drawn and cured by a fiber drawing tower at a certain diameter, speed and energy according to the structure of FIG. 1 to form the optical fiber.
  • a method of identifying an optical fiber coated with a chromogenic indicator :
  • the lg fiber is intercepted, and the coating outside the core of the fiber is peeled off as a sample to be tested; the aqueous solution of iron chloride having a mass concentration of 0.1% is mixed with methanol in a ratio of 1:2, and then mixed as a color developing solution.
  • the sample to be tested is immersed in 5 ml of the color developing solution, and after standing for a while, it is allowed to stand for a period of time to observe reddish brown, and other types of optical fibers do not change color.
  • optical fibers provided in Examples 1-20 were identified by a color reaction, and the color development effect was clearly distinguished, which was easily distinguished from other optical fibers.
  • the fiber is marked by adding a developer to the coating, so that the produced fiber can be effectively identified by the method of the cartridge.
  • the optical fiber preparation method was the same as in Example 1, except that the phenolphthalein was not added to the inner layer coating. Comparative example 2
  • the optical fiber preparation method was the same as in Example 2 except that no phenolphthalein was added to the outer coating. Comparative example 3
  • the optical fiber preparation method was the same as in Example 3 except that no phenolphthalein was added to the layered coating.
  • the fiber coatings provided in Examples 1-3 and Comparative Examples 1-3 were subjected to performance tests, and the performance test methods included:
  • Viscosity Detected by Brookfield viscometer; Refractive index: Detected by Abbe refractometer; Elastic modulus: Detected by universal testing machine; Elongation at break: Detected by universal testing machine; Breaking strength: Detected by universal testing machine.
  • test data is shown in Tables 1 and 2.
  • Comparative Example 1 Example 1 Comparative Example 2
  • Comparative Example 3 Example 3 Modulus of elasticity / MPa 1.01 1.01 728 723 600 610 Elongation at break /% 118 119 21 20.8 30 32 Breaking strength / MPa 0.72 0.74 28.1 28.2 22 22.2
  • Table 1 and Table 2 after the addition of the developer, the fiber The performance of the coating before and after curing is very small, so it does not affect the overall performance of the fiber.

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Abstract

一种光纤及其制造方法与鉴别方法,涉及光纤领域。所述光纤的至少一个涂层中含有显色指示剂,所述显色指示剂为酸碱指示剂、氧化还原指示剂、络合指示剂中的一种或一种以上组合。通过生产光纤时在光纤涂层中添加显色指示剂,对光纤涂层加以标记,进而对光纤加以标记。该指示剂遇到相应显色液会发生显色反应使显色液显色,由于其他光纤不具备该性质,通过显色反应就能容易的鉴别所述光纤,方便对所述光纤进行标记和保护。显色指示剂对环境友好,不会造成环境污染。显色反应操作简便快捷且灵敏度高,只需要少量的显色指示剂即可显色,因而显色指示剂的加入量较少,不会对光纤涂层的性能造成影响。

Description

说 明 书 一种光纤及该光纤的制造方法与鉴别方法
本申请要求于 2013年 3月 7日提交中国专利局、申请号为 201310073267.9、 发明名称为 "一种光纤及其制造方法与鉴别方法" 的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及光纤领域, 特别涉及一种光纤及该光纤的制造方法与鉴别方 法。 背景技术
光纤是光导纤维的筒写, 是一种利用光在玻璃或塑料制成的纤维中的全反 射原理而达成的光传导工具。 光束在光纤内传输, 信号不受电磁的干扰, 传输稳 定。 光纤具有性能可靠、 质量高、 速度快、 线路损耗低、 传输距离远等特点, 适高速网络和骨干网。
光纤一般包括纤芯及包覆在纤芯外的至少一层涂层。 参见图 1 , 纤芯 1包 括玻璃纤维 2及包覆在玻璃纤维 2外的包层 3。 通常的光纤一般涂敷有两层重 叠的可紫外固化涂层, 由它们共同构成底涂层。 参见图 1 , 底涂层中接触纤芯 表面的涂层叫做内层 4, 而覆盖在内层 4上面的涂层叫做外层 5 , 为了标记光 纤用途等, 还可以在外层 5外涂覆一层油墨层。 参见图 2, 多根光纤可以通过 涂层并带, 该涂层称为并带层 7。 用于形成内层 4的树脂需要满足水渗透低, 具有适应不同环境的力学性能, 紫外光固化速度快、 使用寿命长, 玻璃化转变 温度较低、 以保证其具有优良的耐低温性能, 附着力优异、 又具有合适的剥离 性能, 光纤的附加损耗较小等要求。 而用于形成外层 5的树脂要求其能给光纤 带来良好的机械性能和抗水解性能, 保护光纤不受外界环境损坏, 要求其具有 较高的模量、 高的玻璃化转变温度、 良好的耐水性以及耐热性。 目前市场上所 用的光纤涂层涂料从涂料所用树脂主体结构来看基本上大同小异,通过肉眼观 察等常规手段 4艮难进行区分。 而一般玻璃纤维直径为 125um, 外包内层 4和外 层 5涂层材料后直径为 250um,非常纤细,光纤制造商也难以在光纤上 "留下" 显而易见的标记。 因此, 如果只是进行目测, 艮难对光纤进行鉴别和区分, 即 使是专家也会将质量上完全处于两个不同级别的光纤判定为 "看起来完全一 样,,。
目前, 通常通过光纤识别技术对光纤进行区分。 已用的光纤识别技术有通 过红外谱图识别光纤涂层的方法, 具体为: 在光纤涂层中添加一定量的标记物 (例如丙烯腈), 根据光纤涂层在红外谱图中特定位置所出的特征峰对光纤涂 层进行标记识别; 另外还有通过光纤涂层折光率的差异对光纤涂层进行标记的 方法。
在实现本发明的过程中, 发明人发现现有技术至少存在以下问题: 红外谱图识别光纤涂层的方法所用的标记物在一定程度上会影响光纤本 身的性能, 同时在光纤储存和使用过程中该类标记物会有一定程度的挥发, 对 环境和人体造成危害; 通过光纤涂层折光率的差异对光纤涂层进行标记的方法 步骤比较繁瑣。 发明内容
为了解决现有技术的问题, 本发明实施例提供了一种光纤及其制造方法与 鉴别方法。 所述技术方案如下:
一方面, 提供了一种光纤, 所述光纤的至少一个涂层中含有显色指示剂, 所述显色指示剂为酸碱指示剂、 氧化还原指示剂、 络合指示剂中的一种或一种 以上组合。
具体地: 所述酸碱指示剂为甲基紫、 苦味酸、 甲基绿、 甲酚红、 百里酚蓝、 茜素黄 R、 茜素红 S、 二甲基黄、 甲基橙、 溴酚蓝、 刚果红、 溴甲酚绿、 甲基 红、 溴酚红、 溴甲酚紫、 溴百里酚蓝、 中性红、 酚红、 甲酚红、 百里酚蓝、 酚 酞、 百里香酚酞、 达旦黄中的一种或一种以上组合;
所述氧化还原指示剂为二苯胺、 二苯胺磺酸钠、 亚甲基蓝、 中性红、 喹啉 黄、 淀粉、 孔雀绿、 劳氏紫、 邻二氮菲-亚铁、 酸性绿、 专利蓝 V、 苯酚、 邻苯 二酚、 间苯二酚中的一种或一种以上组合;
所述络合指示剂为硫氰酸盐、 铬黑 T、 二甲酚橙、 茜素、 钙试剂、 酸性铬 紫 甲基百里酚蓝、 溴酚红、 铝试剂、 偶氮胂 III中的一种或一种以上组合。
优选, 所述酸碱指示剂为酚酞、 百里香酚酞中的一种或两种组合; 所述氧 化还原指示剂为邻苯二酚; 所述络合指示剂为硫氰酸盐。
具体地, 所述显色指示剂的质量为所述涂层总质量的 0.0001%-10%。 优选, 所述显色指示剂的质量为所述涂层总质量的 0.01%-0.1%。
具体地, 所述涂层包括光纤的内层、 外层和并带层中的一种或一种以上组 合。
另一方面, 提供了一种上述光纤的制造方法, 所述制造方法包括: 向制备好的至少一种光纤涂层涂料中添加显色指示剂,搅拌至所述显色指 示剂完全溶解, 得到含有指示剂的涂料;
将所述含有指示剂的涂料及其他各涂层的涂料涂覆、 拉丝固化到纤芯表 面, 形成所述光纤。
另一方面, 提供了一种上述光纤的鉴别方法, 所述鉴别方法包括: 截取部分光纤, 将所述光纤的涂层剥离下来作为待测样本;
配制显色液;
将所述待测样本浸泡在所述显色液中,静置一段时间后观察所述显色液的 颜色变化;
若所述显色液颜色发生变化, 则所述待测样本为涂层含有显色指示剂的光 纤。
具体地, 所述鉴别方法包括:
截取 0.001-lg光纤, 将所述光纤的涂层剥离下来作为待测样本;
将 1-100体积份的显色剂与 0-99体积份的用于萃取指示剂的萃取剂混合, 形成显色液;
将所述待测样本浸泡在 l-10ml所述显色液中, 静置一段时间后观察所述 显色液的颜色变化;
若所述显色液颜色发生变化, 则所述待测样本为涂层含有显色指示剂的光 纤。
优选, 所述的萃取剂为乙醇、 甲醇、 丙酮、 甲苯或四氯甲烷。
具体地, 所述显色剂包括酸性水溶液或碱性水溶液, 含有氧化性物质或还 原性物质的酸性溶液或碱性溶液, 含有 Ca2+、 Cd2+、 Hg2+、 Mg2+、 Mn2+、 Pb2+、 Zn2+、 Fe3+、 Al3+、 Ba2+等金属离子的酸性溶液或碱性溶液中的一种或一种以上 组合; 色反应,含有氧化性物质或还原性物质的酸性溶液或碱性溶液针对光纤涂层中 含有的氧化还原指示剂进行显色反应, 含有 Ca2+、 Cd2+、 Hg2+、 Mg2+、 Mn2+、 Pb2+、 Zn2+、 Fe3+、 Al3+、 Ba2+等金属离子的酸性溶液或碱性溶液针对光纤涂层 中含有的络合指示剂进行显色反应。
具体地, 所述显色剂中有效物质的质量浓度为 0.01-10%。
本发明原理:
通过向光纤涂层中添加显色指示剂标记光纤的方法是利用了显色指示剂 遇到特殊环境会变色的原理。 所述的指示剂属于化学试剂的一类, 在一定介质 条件下, 其颜色会发生变化、 或者会产生混浊和沉淀, 或者有荧光现象等。 指 示剂通常用来检验溶液的酸碱性、 指示滴定终点、 检测环境中的有害物质等, 一般分为酸碱指示剂、 氧化还原指示剂、 络合指示剂。
酸碱指示剂: 指示溶液中 H+浓度的变化, 是一种有机弱酸或有机弱碱, 其 酸性和碱性具有不同的颜色。
络合指示剂: 大多为染料, 它在一定 pH下能与金属离子络合呈现一种与 游离指示剂完全不同的颜色。
氧化还原指示剂: 为氧化剂或还原剂, 它的氧化形与还原形具有不同的颜 色 , 在被氧化(或还原) 时, 即变色, 指示出溶液电位的变化
本发明实施例提供的技术方案带来的有益效果是:
生产光纤时通过在光纤涂层中添加显色指示剂, 对光纤涂层加以标记, 进 而对光纤加以标记。 该指示剂遇到相应显色液会发生显色反应使显色液显色, 由于其他光纤不具备该性质, 通过显色反应就能容易的鉴别所述光纤, 方便对 所述光纤进行标记和保护。 显色指示剂对环境友好, 不会造成环境污染。 显色 反应操作筒便快捷且灵敏度高, 只需要少量的显色指示剂即可显色, 因而显色 指示剂的加入量较少, 不会对光纤涂层的性能造成任何影响。 附图说明
为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例描述中所 需要使用的附图作筒单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明 的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1是光纤结构示意图;
图 2是光纤并带横截面示意图。
其中: 1、 纤芯, 2、 玻璃纤维, 3、 包层, 4、 内层, 5、 外层, 6、 光纤, 7、 并 带层。 具体实施方式
为使本发明的目的、 技术方案和优点更加清楚, 下面将结合附图对本发明 实施方式作进一步地详细描述。
本发明实施例中内层涂料是将一种或多种丙烯酸脂类低聚物用单官或多 官能团丙烯酸脂类的单体稀释到固含为 75%~98%, 加入 2%~20%的一种或多 种自由基聚合型光引发剂以及 0%~5%的添加剂, 制成光纤内层涂料; 外层涂 料是将一种或多种环氧丙烯酸脂类低聚物用单官或多官能团丙烯酸脂类的单 体稀释到固含为 85%~98%, 加入 2%~10%的一种或多种自由基聚合型光引发 剂以及 0%~5%的添加剂制成光纤外层涂料; 并带层涂料是一种或多种环氧丙 烯酸脂类低聚物用单官或多官能团丙烯酸脂类的单体稀释到固含为 85%~98%, 加入 2%~10%的一种或多种自由基聚合型光引发剂以及 0%~5%的 添加剂, 制成光纤并带层涂料。
本发明实施例以该涂料配方为例,介绍了制备涂层中含有显色指示剂的光 纤的方法及其鉴别方法, 所述方法也适用于其他涂料配方, 本发明实施例所用 涂料配方并不用于限制本发明。
实施例 1
制备内层涂层含有显色指示剂的光纤:
向内层涂料中加入酚酞, 酚酞的添加质量为内层涂料质量的 0.0001%, 搅 拌至酚酞完全溶解, 得到含有酚酞的内层涂料。 将含有酚酞的内层涂料及未添 加任何指示剂的外层涂料通过光纤拉丝塔以一定的直径、速度以及能量按照图
1的结构进行涂敷拉丝固化, 形成所述光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 O.OOlg光纤, 将该部分光纤纤芯外的涂层剥离下来作为待测样本; 将质量浓度为 0.01%的氢氧化钠水溶液与甲醇按照体积比 1:99的比例混合 搅匀后作为显色液备用;
将所述待测样本浸泡在 1ml所述显色液中,适当的摇晃后静置一段时间观 其他种类的光纤不会变色。 实例 2
制备外层涂层含有显色指示剂的光纤:
向外层涂料中加入酚酞, 酚酞的添加质量为外层涂料质量的 10% , 搅拌至 酚酞完全溶解, 得到含有酚酞的外层涂料。 将含有酚酞的外层涂料及未添加任 何指示剂的内层涂料通过光纤拉丝塔以一定的直径、速度以及能量按照图 1的 结构进行涂敷拉丝固化, 形成所述光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg光纤, 将该部分光纤纤芯外的涂层剥离下来作为待测样本; 将质量浓度为 10%的氢氧化钠水溶液作为显色液备用;
将所述待测样本浸泡在 10ml所述显色液中, 适当的摇晃后静置一段时间 色, 其他种类的光纤不会变色。
实例 3
制备并带层含有显色指示剂的并带光纤:
向并带层涂料中加入酚酞, 酚酞的添加质量为并带层涂料质量的 0.01%, 搅拌至酚酞完全溶解, 得到含有酚酞的并带层涂料。 将含有酚酞的并带层涂料 通过光纤拉丝塔以一定的直径、速度以及能量按照图 2的结构涂覆在光纤 6外 面、 拉丝固化, 形成并带光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg并带光纤, 将该部分并带光纤的并带涂层用尖刀剥离下来作为待 测样本;
将质量浓度为 0.1%的氢氧化钠水溶液与甲醇按照体积比 1: 1的比例混合搅 匀后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 其他种类的光纤不会变色。
实例 4
制备内层涂层含有显色指示剂的光纤:
向内层涂料中加入百里香酚酞, 百里香酚酞的添加质量为内层涂料质量的 0.1%, 搅拌至百里香酚酞完全溶解, 得到含有百里香酚酞的内层涂料。 将含有 百里香酚酞的内层涂料及未添加任何指示剂的外层涂料通过光纤拉丝塔以一 定的直径、 速度以及能量按照图 1的结构进行涂敷拉丝固化, 形成所述光纤。 鉴别涂层含有显色指示剂的光纤的方法:
截取 lg光纤, 将该部分光纤纤芯外的涂层剥离下来作为待测样本; 将质量浓度为 0. 1%的氢氧化钠水溶液与甲醇按照体积比 1:1的比例混合 搅匀后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 察所述显色液的颜色变化; 本发明实施例提供的光纤显色液颜色变为淡蓝色, 其他种类的光纤不会变色。
实例 5
制备外层涂层含有显色指示剂的光纤:
向外层涂料中加入百里香酚酞, 百里香酚酞的添加质量为外层涂料质量的 0.1%, 搅拌至百里香酚酞完全溶解, 得到含有百里香酚酞的外层涂料。 将含有 百里香酚酞的外层涂料及未添加任何指示剂的内层涂料通过光纤拉丝塔以一 定的直径、 速度以及能量按照图 1的结构进行涂敷拉丝固化, 形成所述光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg光纤, 将该部分光纤纤芯外的涂层剥离下来作为待测样本; 将质量浓度为 0.1%的氢氧化钠水溶液与甲醇按照体积比 1 : 1的比例混合 搅匀后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 察所述显色液的颜色变化; 本发明实施例提供的光纤显色液颜色变为淡蓝色, 其他种类的光纤不会变色。
实例 6
制备并带层含有显色指示剂的并带光纤:
向并带层涂料中加入百里香酚酞, 百里香酚酞的添加质量为并带层涂料质 量的 0.1%, 搅拌至百里香酚酞完全溶解, 得到含有百里香酚酞的并带层涂料。 将含有百里香酚酞的并带层涂料通过光纤拉丝塔以一定的直径、速度以及能量 按照图 2的结构涂覆在光纤 6外面、 拉丝固化, 形成并带光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg并带光纤, 将该部分并带光纤的并带涂层用尖刀剥离下来作为待 测样本;
将质量浓度为 0.1%的氢氧化钠水溶液与甲醇按照体积比 1:1的比例混合搅 匀后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 察所述显色液的颜色变化; 本发明实施例提供的光纤显色液颜色变为淡蓝色, 其他种类的光纤不会变色。
实例 7
制备内层涂层含有显色指示剂的光纤:
向内层涂料中加入酚酞和百里香酚酞, 酚酞的添加质量为内层涂料质量的 0.05%、 百里香酚酞的添加质量为内层涂料质量的 0.05% , 搅拌至酚酞及百里 香酚酞均完全溶解, 得到含有混合指示剂的内层涂料。 将含有混合指示剂的内 层涂料及未添加任何指示剂的外层涂料通过光纤拉丝塔以一定的直径、速度以 及能量按照图 1的结构进行涂敷拉丝固化, 形成所述光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg光纤, 将该部分光纤纤芯外的涂层剥离下来作为待测样本; 将质量浓度为 0.1%的氢氧化钠水溶液与甲醇按照体积比 1: 1的比例混合搅 匀后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 察所述显色液的颜色变化; 本发明实施例提供的光纤显色液颜色变为淡紫色, 其他种类的光纤不会变色。
实例 8
制备外层涂层含有显色指示剂的光纤:
向外层涂料中加入酚酞和百里香酚酞, 酚酞的添加质量为外层涂料质量的 0.05%、 百里香酚酞的添加质量为内层涂料质量的 0.05% , 搅拌至酚酞及百里 香酚酞均完全溶解, 得到含有混合指示剂的外层涂料。 将未添加任何指示剂的 内层涂料及含有混合指示剂的外层涂料通过光纤拉丝塔以一定的直径、速度以 及能量按照图 1的结构进行涂敷拉丝固化, 形成所述光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg光纤, 将该部分光纤纤芯外的涂层剥离下来作为待测样本; 将质量浓度为 0.1%的氢氧化钠水溶液与甲醇按照体积比 1: 1的比例混合搅 匀后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 察所述显色液的颜色变化; 本发明实施例提供的光纤显色液颜色变为淡紫色, 其他种类的光纤不会变色。
实例 9
制备并带层含有显色指示剂的并带光纤:
向并带层涂料中加入酚酞和百里香酚酞, 酚酞的添加质量为并带层涂料质 量的 0.05%、 百里香酚酞的添加质量为并带层涂料质量的 0.05%, 搅拌至酚酞 及百里香酚酞均完全溶解, 得到含有混合指示剂的并带层涂料, 将含有混合指 示剂的并带层涂料通过光纤拉丝塔以一定的直径、速度以及能量按照图 2的结 构涂覆在光纤 6外面、 拉丝固化, 形成并带光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg光纤, 将该部分并带光纤的并带涂层用尖刀剥离下来作为待测样 本;
将质量浓度为 0.1%的氢氧化钠水溶液与甲醇按照体积比 1: 1的比例混合搅 匀后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 察所述显色液的颜色变化; 本发明实施例提供的光纤显色液颜色变为淡紫色, 其他种类的光纤不会变色。
实例 10
制备内层涂层含有显色指示剂的光纤:
向内层涂料中加入邻苯二酚, 邻苯二酚的添加质量为内层涂料质量的 0.1%, 搅拌至邻苯二酚完全溶解, 得到含有邻苯二酚的内层涂料。 将含有邻苯 二酚的内层涂料及未添加任何指示剂的外层涂料通过光纤拉丝塔以一定的直 径、 速度以及能量按照图 1的结构进行涂敷拉丝固化, 形成所述光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg光纤, 将该部分光纤纤芯外的涂层剥离下来作为待测样本; 将质量浓度为 0.1%的氯化铁水溶液与甲醇按照体积比 1:2的比例混合搅匀 后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 红褐色, 其他种类的光纤不会变色。
实例 11
制备外层涂层含有显色指示剂的光纤: 向外层涂料中加入邻苯二酚, 邻苯二酚的添加质量为外层涂料质量的 0.1%, 搅拌至邻苯二酚完全溶解, 得到含有邻苯二酚的外层涂料。 将未添加任 何指示剂的内层涂料及含有邻苯二酚的外层涂料通过光纤拉丝塔以一定的直 径、 速度以及能量按照图 1的结构进行涂敷拉丝固化, 形成所述光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg光纤, 将该部分光纤纤芯外的涂层剥离下来作为待测样本; 将质量浓度为 0.1%的氯化铁水溶液与甲醇按照体积比 1 : 2的比例混合搅 匀后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 红褐色, 其他种类的光纤不会变色。
实例 12
制备并带层含有显色指示剂的并带光纤:
向并带层涂料中加入邻苯二酚,邻苯二酚的添加质量为并带层涂料质量的 0. 1% , 搅拌至邻苯二酚完全溶解, 得到含有邻苯二酚的并带层涂料。 将含有 邻苯二酚的并带层涂料通过光纤拉丝塔以一定的直径、 速度以及能量按照图 2 的结构涂覆在光纤 6外面、 拉丝固化, 形成并带光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg并带光纤, 将该部分并带光纤的并带涂层用尖刀剥离下来作为待 测样本;
将质量浓度为 0.1%的氯化铁水溶液与甲醇按照体积比 1:2的比例混合搅匀 后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 红褐色, 其他种类的光纤不会变色。
实例 13
制备内层涂层含有显色指示剂的光纤:
向内层涂料中加入硫氰化钾, 硫氰化钾的添加质量为内层涂料质量的 0.1%, 搅拌至硫氰化钾完全溶解, 得到含有硫氰化钾的内层涂料。 将含有硫氰 化钾的内层涂料及未添加任何指示剂的外层涂料通过光纤拉丝塔以一定的直 径、 速度以及能量按照图 1的结构进行涂敷拉丝固化, 形成所述光纤。 鉴别涂层含有显色指示剂的光纤的方法:
截取 lg光纤, 将该部分光纤纤芯外的涂层剥离下来作为待测样本; 将质量浓度为 0.1%的氯化铁水溶液与甲醇按照体积比 1:2的比例混合搅匀 后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 橘红色, 其他种类的光纤不会变色。
实例 14
制备外层涂层含有显色指示剂的光纤:
向外层涂料中加入硫氰化钾, 硫氰化钾的添加质量为外层涂料质量的 0.1%, 搅拌至硫氰化钾完全溶解, 得到含有硫氰化钾的外层涂料。 将未添加任 何指示剂的内层涂料及含有硫氰化钾的外层涂料通过光纤拉丝塔以一定的直 径、 速度以及能量按照图 1的结构进行涂敷拉丝固化, 形成所述光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg光纤, 将该部分光纤纤芯外的涂层剥离下来作为待测样本; 将质量浓度为 0.1%的氯化铁水溶液与甲醇按照体积比 1 : 2的比例混合搅 匀后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 橘红色, 其他种类的光纤不会变色。
实例 15
制备并带层含有显色指示剂的并带光纤:
向并带层涂料中加入硫氰化钾,硫氰化钾的添加质量为并带层涂料质量的 0. 1% , 搅拌至硫氰化钾完全溶解, 得到含有硫氰化钾的并带层涂料。 将含有 硫氰化钾的并带层涂料通过光纤拉丝塔以一定的直径、 速度以及能量按照图 2 的结构涂覆在光纤 6外面、 拉丝固化, 形成并带光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg并带光纤, 将该部分并带光纤的并带涂层用尖刀剥离下来作为待 测样本;
将质量浓度为 0.1%的氯化铁水溶液与甲醇按照体积比 1:2的比例混合搅匀 后作为显色液备用; 将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 橘红色, 其他种类的光纤不会变色。
实施例 16
制备内层涂层含有显色指示剂的光纤:
向内层涂料中加入硫氰化钾, 硫氰化钾的添加质量为内层涂料质量的
0.1%, 搅拌至硫氰化钾完全溶解, 得到含有硫氰化钾的内层涂料。 将含有硫氰 化钾的内层涂料及未添加任何指示剂的外层涂料通过光纤拉丝塔以一定的直 径、 速度以及能量按照图 1的结构进行涂敷拉丝固化, 形成所述光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg光纤, 将该部分光纤纤芯外的涂层剥离下来作为待测样本; 将质量浓度为 0.1%的氯化铁水溶液与乙醇按照体积比 100:99的比例混合 搅匀后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 橘红色, 其他种类的光纤不会变色。
实例 17
制备外层涂层含有显色指示剂的光纤:
向外层涂料中加入甲基红, 甲基红的添加质量为外层涂料质量的 0.1%, 搅拌至甲基红完全溶解, 得到含有甲基红的外层涂料。 将未添加任何指示剂的 内层涂料及含有甲基红的外层涂料通过光纤拉丝塔以一定的直径、速度以及能 量按照图 1的结构进行涂敷拉丝固化, 形成所述光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg光纤, 将该部分光纤纤芯外的涂层剥离下来作为待测样本; 将质量浓度为 0.1%的氢氧化纳水溶液与丙酮按照体积比 1: 2的比例混合 搅匀后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 黄色, 其他种类的光纤不会变色。
实例 18
制备并带层含有显色指示剂的并带光纤: 向并带层涂料中加入苯酚, 苯酚的添加质量为并带层涂料质量的 0. 1% , 搅拌至苯酚完全溶解, 得到含有苯酚的并带层涂料。 将含有苯酚的并带层涂料 通过光纤拉丝塔以一定的直径、速度以及能量按照图 2的结构涂覆在光纤外面、 拉丝固化, 形成并带光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg并带光纤, 将该部分光纤的并带涂层用尖刀剥离下来作为待测样 本;
将质量浓度为 0.1%的氯化铁水溶液与甲苯按照体积比 1:2的比例混合搅匀 后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 淡紫色, 其他种类的光纤不会变色。
实施例 19
制备内层涂层含有显色指示剂的光纤:
向内层涂料中加入二甲酚橙, 二甲酚橙的添加质量为内层涂料质量的 0.1%, 搅拌至二甲酚橙完全溶解, 得到含有二甲酚橙的内层涂料。 将含有二甲 酚橙的内层涂料及未添加任何指示剂的外层涂料通过光纤拉丝塔以一定的直 径、 速度以及能量按照图 1的结构进行涂敷拉丝固化, 形成所述光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg光纤, 将该部分光纤纤芯外的涂层剥离下来作为待测样本; 将质量浓度为 0.1%的氯化铁水溶液与四氯甲烷按照体积比 1:2的比例混合 搅匀后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 淡红色, 其他种类的光纤不会变色。
实施例 20
制备涂层含有显色指示剂的光纤:
分别向内层涂料和外层涂料中加入邻苯二酚, 内层涂料中邻苯二酚的添加 质量为内层涂料质量的 0.05%, 外层涂料中邻苯二酚的添加质量为外层涂料质 量的 0.1% , 分别搅拌至邻苯二酚完全溶解, 得到含有邻苯二酚的内层涂料和 含有邻苯二酚的外层涂料。将含有邻苯二酚内层涂料及含有邻苯二酚的外层涂 料通过光纤拉丝塔以一定的直径、速度以及能量按照图 1的结构进行涂敷拉丝 固化, 形成所述光纤。
鉴别涂层含有显色指示剂的光纤的方法:
截取 lg光纤, 将该部分光纤纤芯外的涂层剥离下来作为待测样本; 将质量浓度为 0.1%的氯化铁水溶液与甲醇按照体积比 1 : 2的比例混合搅 匀后作为显色液备用;
将所述待测样本浸泡在 5ml所述显色液中,适当的摇晃后静置一段时间观 红褐色, 其他种类的光纤不会变色。
实施例 1-20提供的光纤, 通过显色反应对其进行鉴别, 显色效果区别明 显, 容易与其他光纤区分。 通过在涂层中增加显色剂的方式对光纤进行标记, 使得生产出的光纤能够用筒单的方法进行有效识别。
对比例 1
光纤制备方法与实施例 1相同, 唯一不同的是内层涂料中不添加酚酞。 对比例 2
光纤制备方法与实施例 2相同, 唯一不同的是外层涂料中不添加酚酞。 对比例 3
光纤制备方法与实施例 3相同, 唯一不同的是并带层涂料中不添加酚酞。 对实施例 1-3及对比例 1-3提供的光纤涂层进行性能测试, 所述性能测试 方法包括:
粘度: 用 Brookfield粘度仪检测; 折射率: 用阿贝折光仪检测; 弹性模量: 用万能试验机检测; 断裂伸长率: 用万能试验机检测; 断裂强度: 用万能试验 机检测。
测试数据见表 1和表 2。
表 1 实施例 1-3及对比例 1-3提供的光纤涂层固化前的性能参数表
Figure imgf000016_0001
表 2实施例 1-3及对比例 1-3提供的光纤涂层固化后的性能参数表
对比例 1 实施例 1 对比例 2 实施例 2 对比例 3 实施例 3 弹性模量/ MPa 1.01 1.01 728 723 600 610 断裂伸长率 /% 118 119 21 20.8 30 32 断裂强度/ MPa 0.72 0.74 28.1 28.2 22 22.2 由表 1及表 2可以看出, 添加显色剂后, 光纤涂层固化前和固化后的性能 变化甚微, 因而不会对光纤的整体性能产生影响。
上述本发明实施例序号仅仅为了描述, 不代表实施例的优劣。
以上所述仅为本发明的较佳实施例, 并不用以限制本发明, 凡在本发明的 精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的 保护范围之内。

Claims

权 利 要 求 书
1、 一种光纤, 其特征在于, 所述光纤的至少一个涂层中含有显色指示剂, 所述显色指示剂为酸碱指示剂、 氧化还原指示剂、 络合指示剂中的一种或一种 以上组合。
2、 如权利要求 1所述的光纤, 其特征在于,
所述酸碱指示剂为甲基紫、苦味酸、 甲基绿、 甲酚红、百里酚蓝、 茜素黄 R、 茜素红 S、 二甲基黄、 甲基橙、 溴酚蓝、 刚果红、 溴甲酚绿、 甲基红、 溴酚红、 溴甲酚紫、 溴百里酚蓝、 中性红、 酚红、 甲酚红、 百里酚蓝、 酚酞、 百里香酚 酞、 达旦黄中的一种或一种以上组合;
所述氧化还原指示剂为二苯胺、 二苯胺磺酸钠、 亚甲基蓝、 中性红、 喹啉 黄、 淀粉、 孔雀绿、 劳氏紫、 邻二氮菲-亚铁、 酸性绿、 专利蓝 V、 苯酚、 邻苯 二酚、 间苯二酚中的一种或一种以上组合;
所述络合指示剂为硫氰酸盐、 铬黑 T、 二甲酚橙、 茜素、 钙试剂、 酸性铬紫 Β、 甲基百里酚蓝、 溴酚红、 铝试剂、 偶氮胂 III中的一种或一种以上组合。
3、 如权利要求 2所述的光纤, 其特征在于, 所述酸碱指示剂为酚酞、 百里 香酚酞中的一种或两种组合; 所述氧化还原指示剂为邻苯二酚; 所述络合指示 剂为硫氰酸盐。
4、 如权利要求 1所述的光纤, 其特征在于, 所述显色指示剂的质量为所述 涂层总质量的 0.0001%-10%。
5、 如权利要求 4所述的光纤, 其特征在于, 所述显色指示剂的质量为所述 涂层总质量的 0.01%-0.1%。
6、 如权利要求 1所述的光纤, 其特征在于, 所述涂层包括光纤的内层、 外 层和并带层中的一种或一种以上组合。
7、 权利要求 1所述的光纤的制造方法, 其特征在于, 所述制造方法包括: 向制备好的至少一种光纤涂层涂料中添加显色指示剂, 搅拌至所述显色指 示剂完全溶解, 得到含有指示剂的涂料;
将所述含有指示剂的涂料及其他各涂层的涂料涂覆、 拉丝固化到纤芯表面, 形成所述光纤。
8、如权利要求 1所述的光纤的鉴别方法, 其特征在于, 所述鉴别方法包括: 截取部分光纤, 将所述光纤的涂层剥离下来作为待测样本;
配制显色液;
将所述待测样本浸泡在所述显色液中, 静置一段时间后观察所述显色液的 颜色变化;
若所述显色液颜色发生变化, 则所述待测样本为涂层含有显色指示剂的光 纤。
9、 如权利要求 8所述的光纤的鉴别方法, 其特征在于, 所述鉴别方法包括: 截取 0.001-lg光纤, 将所述光纤的涂层剥离下来作为待测样本;
将 1-100体积份的显色剂与 0-99体积份的用于萃取指示剂的萃取剂混合, 形成显色液;
将所述待测样本浸泡在 l-10ml所述显色液中, 静置一段时间后观察所述显 色液的颜色变化;
若所述显色液颜色发生变化, 则所述待测样本为涂层含有显色指示剂的光 纤。
10、 如权利要求 9所述的光纤的鉴别方法, 其特征在于, 所述的萃取剂为 乙醇、 甲醇、 丙酮、 甲苯或四氯甲烷。
11、 如权利要求 10所述的光纤的鉴别方法, 其特征在于, 所述显色剂包括 酸性水溶液或碱性水溶液、 含有氧化性物质或还原性物质的酸性溶液或碱性溶 液、 含有金属离子的酸性溶液或碱性溶液中的一种或一种以上组合。
12、 如权利要求 11所述的光纤的鉴别方法, 其特征在于, 所述显色剂中有 效物质的质量浓度为 0.01-10%。
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