Multifunctional composite fluorescent conductive fiber, fabric and production process

Abstract

The application relates to the technical field of chemical fibers, in particular to a multifunctional composite fluorescent conductive fiber, a fabric and a production process; the multifunctional composite fluorescent conductive fiber comprises the following raw materials in mass fractions: 75-85 parts of a fiber matrix, 5-10 parts of fluorescent master batches and 10-15 parts of conductive master batches; the conductive master batches comprise the following raw materials in mass fractions: 40-60 parts of a fiber matrix, 15-30 parts of metal oxide conductive powder, 5-10 parts of a coupling agent, 1-4 parts of a dispersing agent and 20-50 parts of graphene oxide / polythiophene composite materials; in the application, the components in the raw materials of the composite fluorescent conductive fiber and the proportion of each component are adjusted, so that the conductivity and the fluorescent performance are balanced, and the fiber can effectively conduct current and exhibit bright and stable fluorescent effects.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chemical fibers, in particular to a multifunctional composite fluorescent conductive fiber, fabric and production process. BACKGROUND

[0002] Traditional conductive fibers can meet the electrical performance requirements, but lack visual identification function. The conductive fibers on the market are mainly based on conductive materials such as carbon black and graphene, and the dark tone property limits the design flexibility and application scenarios. Moreover, although fluorescent materials have the characteristics of being invisible under visible light and visible under ultraviolet light, they have poor compatibility with polymers in the process of composite processing, which easily causes performance degradation.

[0003] In the prior art, when preparing a fluorescent conductive fiber, a small amount of fluorescent dye is usually added to the conductive fiber to prepare a conductive fiber with fluorescent function. However, this method results in weakened conductivity and limited fluorescent brightness. At the same time, the fluorescent dye is easily degraded by light and has a short service life. Therefore, in the prior art, it is difficult to simultaneously achieve excellent conductivity and excellent fluorescent display effect when producing a fluorescent conductive fiber.

[0004] Therefore, how to prepare a composite fiber with both fluorescent function and conductive function has become a problem to be solved. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a multifunctional composite fluorescent conductive fiber, fabric and production process.

[0006] In a first aspect, the present application provides a multifunctional composite fluorescent conductive fiber, which adopts the following technical solution:

[0007] A multifunctional composite fluorescent conductive fiber, the composite fluorescent conductive fiber comprises the following raw materials in mass fraction: 75-85 parts of a fiber matrix, 5-10 parts of a fluorescent master batch and 10-15 parts of a conductive master batch.

[0008] The conductive master batch comprises the following raw materials in mass fraction: 40-60 parts of a fiber matrix, 15-30 parts of a metal oxide conductive powder, 5-10 parts of a coupling agent, 1-4 parts of a dispersing agent and 20-50 parts of a graphene oxide / polythiophene composite material.

[0009] By adopting the above technical solution, the present application improves the raw materials by adding graphene oxide / polythiophene composite material. The added graphene oxide / polythiophene composite material reacts with the fiber matrix and the metal oxide conductive powder under the action of the coupling agent to obtain a conductive master batch with conductive performance, thereby further improving the conductive performance of the composite fluorescent conductive fiber.

[0010] The components in the raw materials of the composite fluorescent conductive fiber and the proportion of each component are adjusted in the application to balance the conductivity and the fluorescent performance, so as to ensure that the fiber can effectively conduct current and exhibit bright and stable fluorescent effect.

[0011] Preferably, the graphene oxide / polythiophene composite material comprises the following raw materials in mass fraction: graphene oxide 0.2-1.2 parts, 2-thiophene-3-acetamide 0.3-1.5 parts, ethanol 100-150 parts, octadecylamine 0.1-0.5 parts, hydrazine hydrate 1-5 parts, 3-hexylthiophene 5-8 parts, and iron chloride 1-3 parts.

[0012] Preferably, the preparation method of the graphene oxide / polythiophene composite material comprises the following steps:

[0013] The graphene oxide is dissolved in water to obtain a graphene oxide suspension;

[0014] The 2-thiophene-3-acetamide and the ethanol are mixed, the graphene oxide suspension is added and mixed, filtered, the octadecylamine is added and mixed, filtered, the hydrazine hydrate is added and mixed, filtered, the iron chloride is added and mixed, and the 3-hexylthiophene is added and mixed to obtain the graphene / polythiophene composite material.

[0015] By adopting the above technical solution, the graphene oxide is modified in the application, the graphene oxide is grafted on the 2-thiophene-3-acetamide to obtain functionalized graphene, the functionalized graphene is in-situ polymerized with the 3-hexylthiophene to obtain the graphene / polythiophene composite material with excellent conductivity, so as to effectively improve the conductivity of the composite fluorescent conductive fiber.

[0016] Preferably, the coupling agent is at least one of a silane coupling agent, a titanate coupling agent, or an aluminate coupling agent.

[0017] Preferably, the metal oxide conductive powder is aluminum-doped zinc oxide; and the particle size of the metal oxide conductive powder is 100-500 nm.

[0018] The application selects light-colored raw materials, such as aluminum-doped zinc oxide (AZO), to effectively reduce the use of dark-colored raw materials and broaden the use range of the composite fluorescent conductive fiber.

[0019] Preferably, the fluorescent master batch comprises the following raw materials in mass fraction: fiber matrix 40-60 parts, PVP 45-65 parts, fluorescent agent 20-30 parts, graphene 30-50 parts, silicon dioxide nanoparticles 10-15 parts, and coupling agent 5-10 parts.

[0020] Preferably, the fluorescent agent is at least one of europium-activated barium magnesium aluminate, europium-activated yttrium oxide, and terbium-activated aluminate.

[0021] Preferably, the preparation of the fluorescent masterbatch:

[0022] Mix PVP, fluorescent agent and graphene, add silica nanoparticles, and mix with coupling agent, filter, dry, and obtain fluorescent nanoparticles;

[0023] Mix the fiber matrix and fluorescent nanoparticles uniformly, adjust the temperature range of the double screw between 240-270℃, and perform blending extrusion to obtain the fluorescent masterbatch.

[0024] By using the above technical solution, the PVP, fluorescent agent and graphene are mixed to obtain a mixture with fluorescent conductive function; the mixture with fluorescent conductive function is mixed with silica nanoparticles under the action of a coupling agent, and the mixture is encapsulated in the silica nanoparticles to obtain a fluorescent masterbatch with fluorescent conductive function, which improves the compatibility of the conductive masterbatch and the fluorescent masterbatch, and further improves the conductive performance and fluorescent performance of the fiber.

[0025] In a second aspect, the application provides a fabric, which adopts the following technical solution:

[0026] A fabric, which is knitted from the above composite fluorescent conductive fiber.

[0027] In a third aspect, the application provides a fabric preparation method, which adopts the following technical solution:

[0028] A fabric preparation method, the preparation method steps are as follows:

[0029] The composite fluorescent conductive fiber 20-30 parts and the polyester fiber 40-60 parts are first network compounded, and then twisted under the condition of a twisting degree of 1600 twists / meter to obtain the warp;

[0030] The composite fluorescent conductive fiber 40-50 parts and the polyester fiber 80-100 parts are first network compounded, and then twisted under the condition of a twisting degree of 1600 twists / meter to obtain the weft;

[0031] The prepared warp and weft are woven on an air jet loom at a speed of 690 r / min to obtain a fabric layer.

[0032] In summary, the application has at least one of the following beneficial technical effects:

[0033] The application discloses a multifunctional composite fluorescent conductive fiber, a fabric and a production process. DETAILED DESCRIPTION

[0034] The technical scheme of the application is further illustrated below through specific examples, and the specific examples do not represent a limitation on the protection scope of the application; some non-essential modifications and adjustments made by others according to the concept of the application still belong to the protection scope of the application.

[0035] The raw materials involved in the application all adopt commercially available products, wherein,

[0036] Graphene oxide: carbon content 45-62%, oxygen content 36-53%, particle size <5um.

[0037] Graphene: sheet diameter: 0.5-5um; thickness: 0.8-1.2nm.

[0038] Aluminum-doped zinc oxide (AZO) is purchased from Xuancheng Jingrui New Material Co., Ltd., model JR-AZO, particle size 200-300nm.

[0039] Europium-activated yttrium oxide: europium-activated yttrium oxide powder obtained by mechanical ball milling to 25000 mesh.

[0040] Silicon dioxide nanoparticles are purchased from Suzhou Beikuo Nanometer Technology Co., Ltd.

[0041] Polyester wax dispersant is purchased from Shanghai Kaijin Chemical Co., Ltd., model WE4.

[0042] The application is further described in detail below in combination with examples and comparative examples.

[0043] Preparation Example 1:

[0044] The preparation of graphene oxide / polythiophene composite material is as follows:

[0045] 0.8g of graphene oxide is dissolved in 200mL of deionized water, ultrasonic dispersion, to obtain a graphene oxide suspension;

[0046] 1g of 2-thiophene-3-acetamide and 130g of ethanol are mixed, the graphene oxide suspension is added, mixed at 80℃ for 30 minutes, filtered, washed and dried to obtain product 1.

[0047] To product 1, add 100 mL of deionized water, and add 50 mL of ethanol solution containing octadecylamine 0.3 g, mix at 80°C for 30 minutes, filter, wash, dry, to obtain product 2;

[0048] To product 2, add 100 mL of deionized water, and add hydrazine hydrate 3 g, mix at 80°C for 20 minutes, filter, wash, dry, filter to obtain product 3;

[0049] To product 3, add 100 mL of chloroform, add iron chloride 2 g, mix, add 3-hexyl thiophene 7 g, react at 0°C for 3 h, then react at normal temperature for 72 h; after the reaction is completed, pour the solution into methanol to precipitate the product, and sequentially use methanol, acetone and chloroform solution to perform Soxhlet purification; finally, vacuum dry at normal temperature for 6 hours to obtain graphene / polythiophene composite material.

[0050] Preparation Example 2:

[0051] The preparation of graphene oxide / polythiophene composite material is as follows:

[0052] Dissolve graphene oxide 0.2 g in 200 mL of deionized water, ultrasonic dispersion to obtain graphene oxide suspension;

[0053] Mix 2-thiophene-3-acetamide 0.3 g, ethanol 100 g, add graphene oxide suspension, mix at 80°C for 30 minutes, filter, wash, dry, to obtain product 1;

[0054] To product 1, add 100 mL of deionized water, and add 50 mL of ethanol solution containing octadecylamine 0.1 g, mix at 80°C for 30 minutes, filter, wash, dry, to obtain product 2;

[0055] To product 2, add 100 mL of deionized water, and add hydrazine hydrate 1 g, mix at 80°C for 20 minutes, filter, wash, dry, filter to obtain product 3;

[0056] To product 3, add 100 mL of chloroform, add iron chloride 1 g, mix, add 3-hexyl thiophene 5 g, react at 0°C for 3 h, then react at normal temperature for 72 h; after the reaction is completed, pour the solution into methanol to precipitate the product, and sequentially use methanol, acetone and chloroform solution to perform Soxhlet purification; finally, vacuum dry at normal temperature for 6 hours to obtain graphene / polythiophene composite material.

[0057] Preparation Example 3:

[0058] The preparation of graphene oxide / polythiophene composite material is as follows:

[0059] The graphene oxide 1.2 g is dissolved in 200 mL of deionized water, ultrasonic dispersion, to obtain a graphene oxide suspension;

[0060] The 2-thiophene-3-acetamide 1.5 g, ethanol 150 g are mixed, the graphene oxide suspension is added, mixed at 80℃ for 30 minutes, filtered, washed, dried, to obtain product 1;

[0061] 100 mL of deionized water is added to product 1, and 50 mL of an ethanol solution containing octadecylamine 0.5 g is added, mixed at 80℃ for 30 minutes, filtered, washed, dried, to obtain product 2;

[0062] 5 g of hydrazine hydrate is added to product 2, mixed at 80℃ for 20 minutes, filtered, washed, dried, filtered to obtain product 3;

[0063] 100 mL of chloroform is added to product 3, mixed with 3 g of iron chloride, 8 g of 3-hexylthiophene is added, reacted at 0℃ for 3 h, and then reacted at room temperature for 72 h; after the reaction is completed, the solution is poured into methanol to precipitate the product, and soxhlet purification is carried out with methanol, acetone and chloroform solution in turn; finally, vacuum drying at room temperature for 6 hours, to obtain a graphene / polythiophene composite material.

[0064] Example 1:

[0065] A multifunctional composite fluorescent conductive fiber and fabric are prepared, the steps are as follows:

[0066] (1) Preparation of conductive masterbatch:

[0067] The metal oxide conductive powder (aluminum-doped zinc oxide) 23 g, coupling agent KH560 8 g, deionized water 100 g are mixed, 35 g of graphene oxide / polythiophene composite material is added, stirred at 50℃ for 3 hours, filtered, washed, dried, to obtain product 1;

[0068] The product 1, fiber substrate 50 g, dispersant (polyester wax dispersant) 3 g, deionized water 150 g are mixed uniformly, and the temperature interval of the double screw is adjusted to 240-270℃ for blending extrusion, to obtain the conductive masterbatch.

[0069] The graphene oxide / polythiophene composite material is prepared by preparation example 1.

[0070] (2) Preparation of fluorescent masterbatch:

[0071] PVP 55g is dissolved in deionized water 200g, 25g of fluorescent agent and 40g of graphene are added and mixed, then 13g of silica nanoparticles and 8g of coupling agent KH560 are added and mixed, filtered, dried, and the fluorescent nanoparticles are obtained;

[0072] The fluorescent nanoparticles, fiber substrate 50g, and deionized water 200g are mixed uniformly, and then the temperature of each temperature zone of the double screw is adjusted to 240-270℃ for blending extrusion, to obtain the fluorescent master batch.

[0073] The fluorescent agent is europium-activated yttrium oxide.

[0074] (3) Preparation of multifunctional composite fluorescent conductive fiber:

[0075] The fluorescent master batch 7g, conductive master batch 13g, fiber substrate 80g, and deionized water 200g are blended uniformly, and then melt spinning is performed using a double screw extruder; the temperature of each heating cylinder of the double screw extruder is 270℃, 275℃, 280℃, and 285℃ in turn, and the melt spinning speed is 1000m / min, to obtain the composite fluorescent conductive fiber.

[0076] (4) Preparation of fabric:

[0077] The composite fluorescent conductive fiber 25g and polyester fiber 50g are first network compounded, and then twisted under the condition of twist degree 1600 twists / meter to obtain the warp;

[0078] The composite fluorescent conductive fiber 45g and polyester fiber 90g are first network compounded, and then twisted under the condition of twist degree 1600 twists / meter to obtain the weft;

[0079] The prepared warp and weft are woven on an air-jet loom at a speed of 690r / min to obtain the fabric.

[0080] Example 2:

[0081] A multifunctional composite fluorescent conductive fiber and a fabric are prepared by the following steps:

[0082] (1) Preparation of conductive master batch:

[0083] Metal oxide conductive powder (aluminum-doped zinc oxide) 15g, coupling agent KH560 5g, and deionized water 100g are mixed, and then graphene oxide / polythiophene composite material 20g is added, stirred at 50℃ for 3 hours, filtered, washed, and dried to obtain product 1.

[0084] The product 1, fiber base 40 g, dispersant (polyester wax dispersant) 1 g, deionized water 150 g are mixed uniformly, and then the temperature of each temperature zone of the double screw is adjusted to 240-270 DEG C to perform blending extrusion, thereby obtaining the conductive master batch.

[0085] The graphene oxide / polythiophene composite material is prepared by the preparation example 2.

[0086] (2) Preparation of fluorescent master batch:

[0087] The PVP 45 g is dissolved in deionized water 200 g, the fluorescent agent 20 g and the graphene 30 g are mixed, and then the silicon dioxide nanoparticles 10 g and the coupling agent KH560 5 g are mixed, filtered and dried to obtain the fluorescent nanoparticles.

[0088] The fluorescent nanoparticles, fiber base 40 g and deionized water 200 g are mixed uniformly, and then the temperature of each temperature zone of the double screw is adjusted to 240-270 DEG C to perform blending extrusion, thereby obtaining the fluorescent master batch.

[0089] The fluorescent agent is europium-activated yttrium oxide.

[0090] (3) Preparation of multifunctional composite fluorescent conductive fiber:

[0091] The fluorescent master batch 5 g, the conductive master batch 10 g, the fiber base 75 g and deionized water 200 g are blended uniformly, and then melt spinning is performed by using a double screw extruder; wherein the temperature of each heating cylinder of the double screw extruder is 270 DEG C, 275 DEG C, 280 DEG C and 285 DEG C in sequence, and the speed of melt spinning is 1000 m / min, thereby obtaining the composite fluorescent conductive fiber.

[0092] (4) Preparation of fabric:

[0093] The composite fluorescent conductive fiber 20 g and the polyester fiber 40 g are first network compounded, and then twisting is completed under the condition that the twisting degree is 1600 twists per meter, thereby obtaining the warp;

[0094] The composite fluorescent conductive fiber 40 g and the polyester fiber 80 g are first network compounded, and then twisting is completed under the condition that the twisting degree is 1600 twists per meter, thereby obtaining the weft.

[0095] The prepared warp and weft are woven on an air-jet loom under the condition that the speed is 690 r / min, thereby obtaining the fabric.

[0096] Example 3:

[0097] Preparation of a multifunctional composite fluorescent conductive fiber and fabric, the steps are as follows:

[0098] (1) Preparation of conductive master batch:

[0099] Mixing metal oxide conductive powder (aluminum-doped zinc oxide) 30 g, coupling agent KH560 10 g, deionized water 100 g, adding graphene oxide / polythiophene composite material 50 g, stirring at 50°C for 3 hours, filtering, washing, drying to obtain product 1;

[0100] Mixing product 1, fiber matrix 60 g, dispersant (polyester wax dispersant) 4 g, deionized water 150 g uniformly, adjusting the temperature interval of the double screw between 240-270°C to carry out blending extrusion, to obtain the conductive master batch.

[0101] The graphene oxide / polythiophene composite material is prepared by preparation example 3.

[0102] (2) Preparation of fluorescent master batch:

[0103] Dissolving PVP 65 g in deionized water 200 g, adding fluorescent agent 30 g and graphene 50 g for mixing, then adding silica nanoparticles 15 g, coupling agent KH560 10 g for mixing, filtering, drying to obtain fluorescent nanoparticles;

[0104] Mixing fluorescent nanoparticles, fiber matrix 60 g, deionized water 200 g uniformly, adjusting the temperature interval of the double screw between 240-270°C to carry out blending extrusion, to obtain the fluorescent master batch.

[0105] The fluorescent agent is europium-activated yttrium oxide.

[0106] (3) Preparation of multifunctional composite fluorescent conductive fiber:

[0107] Blending fluorescent master batch 10 g, conductive master batch 15 g with fiber matrix 85 g, deionized water 200 g uniformly, using a double screw extruder to melt spin; wherein the temperature of each heating cylinder of the double screw extruder is 270°C, 275°C, 280°C and 285°C in turn, the speed of melt spinning is 1000 m / min, to obtain the composite fluorescent conductive fiber.

[0108] (4) Preparation of fabric:

[0109] Firstly, blending the composite fluorescent conductive fiber 30 g and polyester fiber 60 g to form a network, then twisting under the condition of twisting degree 1600 twists per meter to obtain the warp;

[0110] Firstly, blending the composite fluorescent conductive fiber 50 g and polyester fiber 100 g to form a network, then twisting under the condition of twisting degree 1600 twists per meter to obtain the weft;

[0111] Weaving the prepared warp and weft on an air-jet loom at a speed of 690 r / min to obtain the fabric.

[0112] Example 4:

[0113] The difference from Example 1 is that the amount of graphene oxide / polythiophene composite added in the preparation of the conductive master batch is 20 g.

[0114] Example 5:

[0115] The difference from Example 1 is that the amount of graphene oxide / polythiophene composite added in the preparation of the conductive master batch is 50 g.

[0116] Example 6:

[0117] A multifunctional composite fluorescent conductive fiber and fabric are prepared by the following steps:

[0118] (1) Preparation of conductive master batch:

[0119] Mix 23 g of metal oxide conductive powder (aluminum-doped zinc oxide), 8 g of coupling agent KH560, and 100 g of deionized water, add 35 g of graphene oxide / polythiophene composite, stir at 50°C for 3 hours, filter, wash, and dry to obtain product 1.

[0120] Mix product 1, 50 g of fiber substrate, 3 g of dispersant (polyester wax dispersant), and 150 g of deionized water uniformly, adjust the temperature interval of the double screw to 240-270°C, and perform blending extrusion to obtain the conductive master batch.

[0121] The graphene oxide / polythiophene composite is prepared by Preparation Example 2.

[0122] (2) Preparation of fluorescent master batch:

[0123] Dissolve 55 g of PVP in 200 g of deionized water, add 25 g of fluorescent agent and 40 g of graphene, mix, then add 13 g of silicon dioxide nanoparticles and 8 g of coupling agent KH560, mix, filter, and dry to obtain fluorescent nanoparticles.

[0124] Mix the fluorescent nanoparticles, 50 g of fiber substrate, and 200 g of deionized water uniformly, adjust the temperature interval of the double screw to 240-270°C, and perform blending extrusion to obtain the fluorescent master batch.

[0125] The fluorescent agent is europium-activated yttrium oxide.

[0126] (3) Preparation of multifunctional composite fluorescent conductive fiber:

[0127] The fluorescent master batch 7 g, the conductive master batch 13 g and the fiber matrix 80 g, deionized water 200 g are uniformly blended, and melt spinning is adopted by using a double screw extruder; wherein the temperature of each heating cylinder of the double screw extruder is 270℃, 275℃, 280℃ and 285℃ in turn, the speed of melt spinning is 1000 m / min, and the composite fluorescent conductive fiber is prepared.

[0128] (4) Preparation of the fabric:

[0129] The composite fluorescent conductive fiber 25 g and the polyester fiber 50 g are first network compounded, and then twisting is completed under the condition that the twisting degree is 1600 twists per meter to obtain the warp;

[0130] The composite fluorescent conductive fiber 45 g and the polyester fiber 90 g are first network compounded, and then twisting is completed under the condition that the twisting degree is 1600 twists per meter to obtain the weft;

[0131] The prepared warp and weft are woven on an air-jet loom at a speed of 690 r / min to obtain the fabric.

[0132] Example 7:

[0133] Preparation of a multifunctional composite fluorescent conductive fiber and a fabric, the steps are as follows:

[0134] (1) Preparation of the conductive master batch:

[0135] The metal oxide conductive powder (aluminum-doped zinc oxide) 23 g, the coupling agent KH560 8 g and deionized water 100 g are mixed, the graphene oxide / polythiophene composite material 35 g is added, stirring reaction is carried out at 50℃ for 3 hours, filtration, washing and drying are carried out, and the product 1 is obtained.

[0136] The product 1, the fiber matrix 50 g, the dispersant (polyester wax dispersant) 3 g and deionized water 150 g are uniformly mixed, the temperature interval of the double screw is adjusted to 240-270℃, and the blending extrusion is carried out, and the conductive master batch is obtained.

[0137] The graphene oxide / polythiophene composite material is prepared by the preparation example 3.

[0138] (2) Preparation of the fluorescent master batch:

[0139] The PVP 55 g is dissolved in deionized water 200 g, the fluorescent agent 25 g and the graphene 40 g are mixed, and then the silicon dioxide nanoparticles 13 g and the coupling agent KH560 8 g are mixed, and then filtration and drying are carried out, and the fluorescent nanoparticles are obtained.

[0140] The fluorescent nanoparticles, the fiber base 50g, and deionized water 200g are mixed uniformly, and then the temperature of each temperature zone of the double screw is adjusted to 240-270 DEG C to perform blending extrusion, so as to obtain the fluorescent master batch.

[0141] The fluorescent agent is europium-activated yttrium oxide.

[0142] (3) Preparation of multifunctional composite fluorescent conductive fiber:

[0143] The fluorescent master batch 7g, the conductive master batch 13g, the fiber base 80g, and deionized water 200g are blended uniformly, and then melt spinning is performed by using a double screw extruder; wherein the temperature of each heating cylinder of the double screw extruder is 270 DEG C, 275 DEG C, 280 DEG C, and 285 DEG C in sequence, and the speed of melt spinning is 1000 m / min, so as to obtain the composite fluorescent conductive fiber.

[0144] (4) Preparation of fabric:

[0145] The composite fluorescent conductive fiber 25g and the polyester fiber 50g are first network compounded, and then twisting is completed under the condition that the twisting degree is 1600 twists per meter, so as to obtain the warp;

[0146] The composite fluorescent conductive fiber 45g and the polyester fiber 90g are first network compounded, and then twisting is completed under the condition that the twisting degree is 1600 twists per meter, so as to obtain the weft.

[0147] The prepared warp and weft are woven on an air-jet loom under the condition that the speed is 690 r / min, so as to obtain the fabric.

[0148] Comparative Example 1:

[0149] The difference from Example 1 is that the graphene oxide / polythiophene composite material is not added in the process of preparing the conductive master batch.

[0150] Comparative Example 2:

[0151] The difference from Example 1 is that the metal oxide conductive powder (aluminum-doped zinc oxide) is not added in the process of preparing the conductive master batch.

[0152] Comparative Example 3:

[0153] The difference from Example 1 is that the addition amount of the graphene oxide / polythiophene composite material is 19g in the process of preparing the conductive master batch.

[0154] Comparative Example 4:

[0155] The difference from Example 1 is that the addition amount of the graphene oxide / polythiophene composite material is 51g in the process of preparing the conductive master batch.

[0156] Comparative Example 5:

[0157] The difference from Example 1 is that no graphene is added in the process of preparing the fluorescent master batch.

[0158] Comparative Example 6:

[0159] The difference from Example 1 is that no silica nanoparticles and coupling agent are added in the process of preparing the fluorescent master batch.

[0160] Comparative Example 7:

[0161] The difference from Example 1 is that the fluorescent master batch used is different.

[0162] The preparation method of the fluorescent master batch is as follows:

[0163] The fluorescent agent 25 g, the fiber matrix 50 g, and deionized water 200 g are uniformly mixed, and then the temperature interval of the double screw is adjusted to 240-270°C for blending extrusion to obtain the fluorescent master batch.

[0164] The fluorescent agent is europium-activated yttrium oxide.

[0165] Performance detection:

[0166] 1. Resistivity detection:

[0167] The specific resistance of the composite fluorescent conductive fiber prepared in the above examples and comparative examples is detected, and the results are shown in Table 1:

[0168] Table 1: Resistivity detection results of conductive fiber

[0169]

[0170] According to Table 1, the composite fluorescent conductive fiber prepared by the method of the present application (Examples 1-7) has good conductive performance.

[0171] It can be known from Example 1 and Comparative Example 1 that the conductive performance of Example 1 is better than that of Comparative Example 1, which shows that the addition of graphene oxide / polythiophene composite material in the present application effectively improves the conductive performance of the composite fluorescent conductive fiber.

[0172] It can be known from Example 1 and Comparative Example 2 that the conductive performance of Example 1 is better than that of Comparative Example 2, which shows that the metal oxide conductive powder added in the present application is mixed with the graphene oxide / polythiophene composite material under the action of the coupling agent to obtain a polymer with conductive performance, which effectively improves the conductive performance of the composite fluorescent conductive fiber.

[0173] It can be seen from the combination of Example 1, Example 4, Example 5, Comparative Example 3 and Comparative Example 4 that the adding amount of the graphene oxide / polythiophene composite material has an influence on the conductive performance of the composite fluorescent conductive fiber, and when the adding amount of the graphene oxide / polythiophene composite material is 20-50 g, the conductive performance of the composite fluorescent conductive fiber is optimal.

[0174] It can be seen from the combination of Example 1 and Comparative Example 5 that the conductive performance of Example 1 is better than that of Comparative Example 5, which indicates that adding graphene in the process of preparing the fluorescent master batch effectively improves the conductive performance of the composite fluorescent conductive fiber.

[0175] 2, Color development effect of the composite fluorescent conductive fiber

[0176] The color development effect of the composite fluorescent conductive fiber prepared in the above examples and comparative examples was detected, and the results are shown in Table 2:

[0177] Table 2 Color development effect detection of the composite fluorescent conductive fiber

[0178]

[0179] It can be seen from Table 1 that the composite fluorescent conductive fiber prepared by the method of the present application (Examples 1-7) has good fluorescent performance.

[0180] It can be seen from the combination of Example 1 and Comparative Example 6 that the fluorescent performance of Example 1 is better than that of Comparative Example 6, which indicates that adding silica nanoparticles and coupling agent in the process of preparing the fluorescent master batch, and encapsulating the mixture prepared from the fluorescent agent and graphene in the silica nanoparticles under the action of the coupling agent, the fluorescent master batch with fluorescent conductive function is obtained, which effectively improves the compatibility of the conductive master batch and the fluorescent master batch, thereby further improving the fluorescent color development effect of the composite fluorescent conductive fiber.

[0181] It can be seen from the combination of Example 1 and Comparative Example 7 that the fluorescent performance of Example 1 is better than that of Comparative Example 7, which indicates that the fluorescent master batch prepared by the method of the present application effectively improves the fluorescent performance of the composite fluorescent conductive fiber.

[0182] 3, Fluorescent loss rate detection:

[0183] The fluorescent loss rate of the composite fluorescent conductive fiber prepared in the above examples and comparative examples was detected, and the results are shown in Table 3:

[0184] The specific detection steps are as follows: the composite fluorescent conductive fiber prepared in the above examples and comparative examples was immersed for 30 min and then taken out and dried, and the fluorescent loss rate was detected.

[0185] Table 3 Fluorescent loss rate detection results of the composite fluorescent conductive fiber

[0186]

[0187] According to Table 1, the composite fluorescent conductive fiber prepared by the method of the present application (Examples 1-7) has good fluorescent performance and effectively prolongs the service life of the fluorescent agent.

[0188] As can be seen from Examples 1 and Comparative Example 6, the fluorescent performance of Example 1 is better than that of Comparative Example 6, which shows that in the process of preparing the fluorescent master batch, the silica nanoparticles and the coupling agent are added, and the mixture prepared by the fluorescent agent and graphene is encapsulated in the silica nanoparticles under the action of the coupling agent to obtain the fluorescent master batch with fluorescent conductive function, which effectively improves the compatibility of the conductive master batch and the fluorescent master batch, thereby further improving the fluorescent color development effect of the composite fluorescent conductive fiber.

[0189] As can be seen from Examples 1 and Comparative Example 7, the fluorescent performance of Example 1 is better than that of Comparative Example 7, which shows that the fluorescent master batch prepared by the method of the present application effectively prolongs the service life of the fluorescent agent.

[0190] In the present application, the components in the raw materials of the composite fluorescent conductive fiber and the proportion of each component are adjusted to balance the conductivity and the fluorescent performance, so as to ensure that the fiber can effectively conduct current and exhibit bright and stable fluorescent effect.

Claims

1. A multifunctional composite fluorescent conductive fiber, characterized by, The composite fluorescent conductive fiber comprises the following raw materials in mass fraction: fiber base 75-85 parts, fluorescent master batch 5-10 parts, and conductive master batch 10-15 parts. The conductive master batch comprises the following raw materials in mass fraction: fiber base 40-60 parts, metal oxide conductive powder 15-30 parts, coupling agent 5-10 parts, dispersant 1-4 parts, and graphene oxide / polythiophene composite material 20-50 parts. The fluorescent master batch comprises the following raw materials in mass fraction: fiber base 40-60 parts, PVP 45-65 parts, fluorescent agent 20-30 parts, graphene 30-50 parts, silicon dioxide nanoparticles 10-15 parts, and coupling agent 5-10 parts. Preparation of the fluorescent master batch: PVP, fluorescent agent, and graphene are mixed, and then silicon dioxide nanoparticles and coupling agent are added and mixed, followed by filtration, drying, and obtaining of fluorescent nanoparticles. The fiber base and the fluorescent nanoparticles are uniformly mixed, and then the temperature interval of the double screw is adjusted to 240-270 DEG C for blending extrusion, thereby obtaining the fluorescent master batch.

2. The multifunctional composite fluorescent conductive fiber according to claim 1, wherein The graphene oxide / polythiophene composite material comprises the following raw materials in mass fraction: graphene oxide 0.2-1.2 parts, 2-thiophene-3-acetamide 0.3-1.5 parts, ethanol 100-150 parts, octadecylamine 0.1-0.5 parts, hydrazine hydrate 1-5 parts, 3-hexylthiophene 5-8 parts, and ferric chloride 1-3 parts.

3. The multifunctional composite fluorescent conductive fiber according to claim 2, wherein The preparation method of the graphene oxide / polythiophene composite material comprises the following steps: Graphene oxide is dissolved in water to obtain a graphene oxide suspension; 2-thiophene-3-acetamide and ethanol are mixed, and then the graphene oxide suspension is added and mixed, followed by filtration, addition of octadecylamine and mixing, filtration, addition of hydrazine hydrate and mixing, filtration, addition of ferric chloride and mixing, and then addition of 3-hexylthiophene and mixing, thereby obtaining the graphene / polythiophene composite material.

4. The multifunctional composite fluorescent conductive fiber according to claim 1, wherein: The coupling agent is at least one of a silane coupling agent, a titanate coupling agent, or an aluminate coupling agent.

5. The multifunctional composite fluorescent conductive fiber according to claim 1, wherein: The metal oxide conductive powder is aluminum-doped zinc oxide, and the particle size of the metal oxide conductive powder is 100-500 nm.

6. The multifunctional composite fluorescent conductive fiber according to claim 1, wherein: The fluorescent agent is at least one of europium-activated barium magnesium aluminate, europium-activated yttrium oxide, and terbium-activated aluminate.

7. A fabric, characterized by: The fabric is woven from the composite fluorescent conductive fiber according to any one of claims 1-6.

8. A method for preparing the fabric of claim 7, characterized in that, The preparation method comprises the following steps: 20-30 parts of the composite fluorescent conductive fiber and 40-60 parts of polyester fiber are first network-composited, and then twisting is completed under a twisting degree of 1600 twists per meter, thereby obtaining the warp thread; 40-50 parts of the composite fluorescent conductive fiber and 80-100 parts of polyester fiber are first network-composited, and then twisting is completed under a twisting degree of 1600 twists per meter, thereby obtaining the weft thread; The prepared warp thread and weft thread are woven on an air-jet loom at a speed of 690 r / min, thereby obtaining the fabric layer.

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