Graphene multifunctional fiber, manufacturing method and applications

Abstract

This application relates to functional fibers, and more particularly to graphene multifunctional fibers. The graphene multifunctional fiber is spun by mixing a fiber main material with a graphene functional masterbatch, wherein the weight ratio of the fiber main material is 80% to 98%, and the weight ratio of the graphene functional masterbatch is 2% to 20%. The graphene functional masterbatch contains 70 to 90 parts of base material, 1 to 15 parts of graphene powder, 1 to 15 parts of light-absorbing and heat-insulating material, 5 to 15 parts of antibacterial material, 3 to 15 parts of antistatic material, 0.1 to 2 parts of auxiliary material, and 0.1 to 10 parts of mite-repellent material. To produce the graphene multifunctional fiber, a graphene functional masterbatch and melt spinning are prepared, and the graphene multifunctional fiber can be used to prepare cotton-like precipitate flakes or plush fabrics. The functionality of the graphene multifunctional fiber does not deteriorate with use and washing, possesses permanent functional properties, can be filled and spun as short fibers, and can also be directly woven as continuous filaments.

Description

Technical Field

[0001] The present application relates to the production of functional fibers, and in particular relates to a graphene multifunctional fiber, its manufacturing method and application.

Background Art

[0002] Currently, with the development of society, consumers' demands for textiles are no longer limited to warmth retention and aesthetic appearance, and the demands for the functionality of textiles are increasingly growing, making products with multiple functions popular in the market.

[0003] Graphene is a single-layer carbon atom material isolated from graphite, with carbon atoms closely stacked in a single-layer two-dimensional honeycomb lattice structure, which has excellent mechanical, optical and electrical properties and a stable structure. Graphene materials can be applied to textile products, combined with textiles through spinning or finishing processes, to maximize the inherent functions of graphene such as antibacterial properties, acarid resistance, antistatic properties, and ultraviolet resistance. For example, Chinese Patent CN108385204A discloses an antistatic composite fiber of graphene polyester and its manufacturing method, which uses nylon fiber as the core coated with polyester, the nylon fiber contains graphene, the polyester fiber contains an antistatic agent, and the composite yarn has an antistatic effect. However, the fiber obtained by such a method has a single function, and the fiber technology of the composite structure is complicated. In addition, Chinese Patent CN107557900A discloses the production of multifunctional high-efficiency graphene functional fiber and its usage. By compounding an acarid-resistant auxiliary agent, a functional auxiliary agent and graphene-based polyester fiber in the finishing process, a graphene polyester composite fiber with acarid resistance and functionality is formed. Although this method has a simple process and the fiber has multiple composite functions, the functionality of the fiber will degrade and even disappear as the number of washing cycles increases during the use of the product.

Summary of the Invention

Means for Solving the Problems

[0004] To address the issue of functional degradation or loss of conventional graphene-containing functional fibers after prolonged use, this invention proposes a graphene multifunctional fiber, which is spun by mixing a fiber main material with a graphene functional masterbatch. The weight ratio of the fiber main material is 80% to 98%, and the weight ratio of the graphene functional masterbatch is 2% to 20%. The graphene functional masterbatch contains 70 to 90 parts of base material, 1 to 15 parts of graphene powder, 1 to 15 parts of light-absorbing and heat-insulating material, 5 to 15 parts of antibacterial material, 3 to 15 parts of antistatic material, 0.1 to 2 parts of auxiliary material, and 0.1 to 10 parts of mite-repellent material.

[0005] Furthermore, the fiber body material and the matrix material are made of the same polymer, selected from polyester, polyamide, polypropylene, or polyolefin. Since the masterbatch and fiber material are made of the same material, there are no incompatibility issues during mixing, resulting in a more uniform dispersion of the functional material. To ensure the spinnability, functionality, and cost-effectiveness of the fiber, the graphene material used in this application has fewer than 10 layers, is in sheet form, and its D50 particle size was measured to be less than 10 μm using a laser particle size analyzer, and it was obtained using a physical exfoliation method.

[0006] Specifically, the light-absorbing and heat-insulating material is a combination of one or more of antimony doped tin oxide, indium tin oxide, tungsten oxide, carbohydrates, carbon nanotubes, and cesium tungsten bronze; the antimicrobial material is an organic antimicrobial material and / or an inorganic antimicrobial material, the organic antimicrobial material being polyhexamethylene guanidine, the inorganic antimicrobial material being a silver ion-based antimicrobial agent, a zinc ion-based antimicrobial agent, or a copper ion-based antimicrobial agent; the auxiliary agent is a coupling agent and / or a dispersant and / or a crosslinking agent, the coupling agent being one of triethoxyvinylsilane coupling agents, isopropyl titanium triisostearate coupling agents, titanium aluminum composite coupling agents, stearate coupling agents, or phosphate ester coupling agents; the dispersant is one of pentaerythritol tetrastearate or polyethylene wax; and the mite-proofing material is permethrin.

[0007] The present invention provides for the production of graphene multifunctional fibers, which includes the following steps: Step 1 for manufacturing a graphene functional masterbatch, Each component of the graphene functional masterbatch is weighed by weight percentage and placed in a vacuum drying oven. The mixture is dried for 8-15 hours at a vacuum of <100 Pa and a temperature of 120-180°C. After drying, the graphene powder, light-absorbing and insulating material, antibacterial material, antistatic material, dispersant, and mite-proof material are mixed. Then, under high-speed stirring, the mixture is combined with the base material, coupling agent, and crosslinking agent. After uniform mixing, the mixture is stretched through a twin-screw extruder and cut into pellets. Step 2 for manufacturing graphene multifunctional fibers, The fiber base material and the graphene functional masterbatch are weighed in weight percentages, and graphene multifunctional continuous filaments or short fibers are manufactured using melt spinning technology.

[0008] In step 2, a spinneret was used to obtain graphene multifunctional fibers having a circular, hollow, flattened, triangular, trefoil, cruciate, or double cruciate cross-section. [Effects of the Invention]

[0009] The beneficial effects of this invention are: 1. The graphene multifunctional fiber of this invention possesses various functions such as light absorption, heat generation and heat retention, far-infrared radiation, antibacterial and anti-mite properties, antistatic properties, and high thermal conductivity. 2. The functions of the graphene multifunctional fiber of this invention do not deteriorate with increasing use and washing cycles, and possess permanent functional properties. 3. In the manufacturing process of the graphene functional masterbatch of this invention, the graphene material and each functional powder have excellent dispersibility in the matrix material, satisfying the requirements for spinning short fibers and continuous filaments, and having a wide range of applications. It can be filled and spun as short fibers, and can also be directly woven as continuous filaments. [Brief explanation of the drawing]

[0010] [Figure 1] This is a hollow cross-sectional view of the graphene multifunctional fiber structure of Example 1. [Figure 2] This is a flattened cross-sectional view of the graphene multifunctional fiber of Example 2. [Figure 3] This is a circular cross-sectional view of the graphene multifunctional fiber of Example 3. [Figure 4] This is an image of the graphene multifunctional cotton-like precipitate flakes used in Application Example 1. [Figure 5] This is an image of the graphene multi-functional flannel fabric used in application example 2. [Figure 6] This is an image of the graphene multi-functional jersey, which is an example of application 3. [Modes for carrying out the invention]

[0011] The present application will be described below based on examples, but the examples given are solely for the purpose of illustrating the present application and are not intended to limit its scope.

[0012] (Example 1) This graphene multifunctional polyester fiber is spun by mixing 94 wt% polyethylene terephthalate chips and 6 wt% graphene functional masterbatch. The graphene functional masterbatch contains parts by weight of: 80 parts polyethylene terephthalate powder, 2 parts graphene material, 1.5 parts antimony dop tin oxide, 5 parts polyhexamethylene guanidine, 4 parts silver ion antimicrobial agent, 1 part permethrin, 5 parts ethoxylated alkylamine antistatic agent, 0.5 parts triethoxyvinylsilane coupling agent, 0.5 parts pentaerythritol tetrasteart, and 0.5 parts BASF ADR4400 crosslinking agent.

[0013] The manufacturing method includes the following steps: Step 1: Manufacture a graphene multifunctional polyester masterbatch. Polyethylene terephthalate powder, graphene material, antimond-doped tin oxide, polyhexamethylene guanidine, and a silver ion-based antimicrobial agent were placed in a vacuum drying oven and dried for 12 hours at a vacuum of <100 Pa and a temperature of 150°C. After drying, the graphene powder, antimond-doped tin oxide, polyhexamethylene guanidine, silver ion-based antimicrobial agent, permethrin, ethoxylated alkylamine, and pentaerythritol tetrasteart were mixed. Then, under high-speed stirring, the mixture was mixed with polyethylene terephthalate powder, triethoxyvinylsilane coupling agent, and crosslinking agent. After high-speed stirring, the mixture was heated, melted, and stretched through a twin-screw extruder, cooled, and cut into pellets to obtain a graphene functional masterbatch.

[0014] Step 2: Graphene multi-functional polyester staple fiber manufacturing After drying, the polyethylene terephthalate chips and graphene functional masterbatch were fed into the spinning machine screw by a metering pump and melted. The temperatures in sections 1 to 5 were controlled to 280°C, 280°C, 285°C, 290°C, and 285°C respectively. The molten material was ejected through the annular spinning machine holes and subjected to side-air drying, bundling, winding, drafting, curling, oiling, cutting, drying, and packaging to obtain graphene multifunctional polyester staple fibers. The specifications of the staple fibers are 3D*64mm, and as shown in Figure 1, the cross-section of the staple fibers is hollow.

[0015] (Example 2) This graphene multifunctional polyester fiber is spun by mixing 95 wt% polyethylene terephthalate chips and 5 wt% graphene functional masterbatch. The graphene functional masterbatch contains the following components by weight: 79.5 parts polyethylene terephthalate powder, 1.5 parts graphene material, 2 parts antimondopoup tin oxide, 10 parts polyhexamethylene guanidine, 0.5 parts permethrin, 5 parts ethoxylated alkylamine antistatic agent, 0.5 parts triethoxyvinylsilane coupling agent, 0.5 parts pentaerythritol tetrastearate, and 0.5 parts BASF ADR4400 crosslinking agent.

[0016] The manufacturing method includes the following steps: Step 1: Prepare the graphene multifunctional polyester masterbatch Place polyethylene terephthalate powder, graphene material, antimony-doped tin oxide, and polyhexamethylene guanidine into a vacuum drying oven, and dry them for 12 hours under a vacuum degree of <100Pa at a temperature of 150℃. After mixing the dried graphene material powder, antimony-doped tin oxide, polyhexamethylene guanidine, permethrin, ethoxylated alkylamine, and pentaerythritol tetrastearate, the mixture is mixed with polyethylene terephthalate powder, triethoxyvinylsilane coupling agent and crosslinking agent under high-speed stirring. After high-speed stirring and mixing, the mixture is heated, melted and drawn through a twin-screw extruder, cooled and then cut into pellets, to obtain the graphene functional masterbatch.

[0017] Step 2: Prepare the graphene multifunctional polyester continuous filament After drying, the polyethylene terephthalate chips and graphene functional masterbatch are fed into the screw of the spinning machine through a metering pump for melting. The temperatures from zone 1 to zone 5 are controlled at 280℃, 280℃, 285℃, 290℃ and 285℃ respectively. The melt is extruded through the holes of the annular spinning machine, and then subjected to cross-air quenching, oiling, drafting and packaging to obtain the graphene multifunctional polyester continuous filament. The continuous filament has a specification of 150D / 228F with luster, and as shown in Figure 2, the cross-section of the continuous filament is flat.

[0018] (Example 3) A graphene multifunctional polyamide fiber, which is obtained by mixing and spinning 95wt% polyamide chips and 5wt% graphene functional masterbatch. The graphene functional masterbatch comprises the following components in parts by weight: 79.7 parts of polyamide powder, 5 parts of graphene material, 0.5 parts of antimony-doped tin oxide, 8 parts of silver ion antibacterial agent, 0.5 parts of permethrin, 5 parts of ethoxylated lauramide antistatic agent, 0.5 parts of triethoxyvinylsilane coupling agent, 0.5 parts of pentaerythritol tetrastearate, and 0.3 parts of BASF ADR4400 crosslinking agent.

[0019] The manufacturing method includes the following steps: Step 1: Manufacturing a graphene multifunctional nylon masterbatch After mixing the graphene material, antimony-doped tin oxide, silver ion-based antibacterial agent, polyhexamethylene guanidine, permethrin, ethoxylated lauric acid amide and pentaerythritol tetrastearate, the mixture is mixed with polyamide powder, triethoxyvinylsilane coupling agent and crosslinking agent under high-speed stirring. After high-speed stirring and mixing, the mixture is heated, melted and drawn through a twin-screw extruder, cooled and then cut into pellets, to obtain the graphene functional masterbatch.

[0020] Step 2: Manufacturing graphene multifunctional nylon continuous filaments After being dried, the polyamide chips and the graphene functional masterbatch are fed by a metering pump into the screw of a spinning machine for melting. The temperatures from zone 1 to zone 5 are controlled at 230°C, 240°C, 245°C, 260°C and 265°C respectively. The melt is extruded through the holes of an annular spinning machine, and subjected to cross-air cooling, bundling, oiling, drafting and packaging to obtain the graphene multifunctional nylon continuous filaments. The continuous filaments have a specification of 140D / 196F and are glossy. As shown in Figure 3, the cross-section of the continuous filament is circular.

[0021] (Comparative Example 1) A polyester staple fiber, whose manufacturing method is as follows: polyethylene terephthalate chips with a melting point of 280°C are dried, then fed by a metering pump into the screw of a spinning machine for melting and subsequent drawing. The temperatures from zone 1 to zone 5 are controlled at 280°C, 285°C, 285°C, 290°C and 285°C respectively. The melt is extruded through the holes of an annular spinning machine, and subjected to cross-air cooling, bundling, winding, drafting, crimping, oiling, cutting, drying and packaging to obtain the polyester staple fiber.

[0022] (Comparative Example 2) The polyester continuous filament is manufactured by drying polyethylene terephthalate chips with a melting point of 280°C, then feeding them into the screw of a spinning machine using a metering pump to melt them, and then stretching them. The temperatures in sections 1 to 5 are controlled to 280°C, 285°C, 285°C, 290°C, and 285°C respectively. The molten material is ejected through the holes of an annular spinning machine, and then air-dried, bundled, wound, oiled, drafted, and packaged to obtain a normal polyester continuous filament. The specifications of the continuous filament are 150D / 228F, it is glossy, and the cross-section of the continuous filament is circular.

[0023] (Comparative Example 3) The nylon continuous filament is manufactured by a method in which polyamide chips with a melting point of 260°C are fed into the screw of a spinning machine by a metering pump, melted, and then stretched. The temperatures in sections 1 to 5 are controlled to 230°C, 240°C, 245°C, 260°C, and 265°C respectively. The molten material is ejected through the holes of an annular spinning machine, and then air-dried, oiled, fume-dried, and packaged to obtain a normal nylon continuous filament. The specifications of the continuous filament are 140D / 196F, it is glossy, and the cross-section of the continuous filament is circular.

[0024] 1. Light absorption and heat generation test Based on the Japanese standard JIS L 1926, graphene multifunctional polyester staple fibers of Example 1 and ordinary polyester staple fibers of Comparative Example 1 were uniformly filled into 15cm*15cm pongee at a filling rate of 400g per square meter, and a light absorption heat generation test was performed on the test sample and comparative sample. Here, the test sample contained 30% staple fibers of Example 1 and 70% ordinary polyester. Using Example 2 and Comparative Example 2, 280g of flannel was woven and cut into 15cm*15cm samples, and a light absorption heat generation test was performed on each as the test sample and comparative sample. Here, the test sample contained 30% continuous filaments of Example 2. A thermocouple temperature sensor was placed in the center of the back surface of the sample, and the surface of the test sample was irradiated with a reflector lamp. The temperature changes of the samples were measured after 10 minutes of light irradiation and 10 minutes of light-off standing. As shown in Table 1, when light irradiation was present for the first 10 minutes, Examples 1 and 2 heated up faster than Comparative Examples 1 and 2, respectively, and after 10 minutes, Examples 1 and 2 cooled down more slowly than Comparative Examples 1 and 2, respectively. This demonstrates that the samples with 30% of the graphene multifunctional fiber of the present invention can better absorb and store the thermal energy of light, and exhibit clear light-absorbing exothermic properties.

[0025] [Table 1]

[0026] 2. Far-infrared re-emission characteristics measurement Based on the evaluation standards of the Japan Far Infrared Association, graphene multifunctional polyester staple fibers of Example 1 and ordinary polyester staple fibers of Comparative Example 1 were uniformly filled into 15cm*15cm pongee at a filling rate of 400g per square meter, and the far-infrared re-emission characteristics were measured for each as a test sample and a comparison sample. Here, the test sample contained 30% staple fibers of Example 1 and 70% ordinary polyester. Using Example 2 and Comparative Example 2, 280g of flannel was woven and cut into 10cm*7cm samples, and the far-infrared re-emission characteristics were measured for each as a test sample and a comparison sample. Here, the test sample contained 30% continuous filaments of Example 2. The test sample and comparison sample were placed side by side on a test stand tilted at 45°, and a hot plate (90°C) was placed parallel to the test sample 15cm directly in front of it. Using an infrared imager, the surface temperatures of the two test samples were measured, and as shown in Table 2, both the graphene multifunctional polyester fibers of Examples 1 and 2 clearly exhibit far-infrared thermal properties. The graphene multifunctional fiber of the present invention can re-emit far-infrared rays from the human body and has a better heat retention effect.

[0027] [Table 2]

[0028] III. Antibacterial test Based on the Japanese standard JIS L 1902, antibacterial tests were conducted on the fibers of Examples 1-3 and Comparative Examples 1-3. As shown in Table 3, Examples 1-3 exhibited excellent antibacterial properties before and after washing. The antibacterial substance was added to the fiber by melt spinning and did not diminish with increasing use and washing cycles. It was found that Examples 1-3 did not exhibit antibacterial properties compared to Comparative Examples 1-3.

[0029] [Table 3]

[0030] IV. Measurement of thermal conductivity Based on the Chinese national standard GB / T10297-2015 for measuring the thermal conductivity of non-metallic solid materials by the hot-wire method, thermal conductivity measurements were performed on the fibers of Examples 1-3 and Comparative Examples 1-3, respectively, using a thermal conductivity meter under conditions of 23±3℃ and 55±5%RH. The results are shown in Table 4. The thermal conductivity of ordinary polyester is 0.15-0.24 W / m·K, and the thermal conductivity of ordinary nylon is 0.26-0.35 W / m·K. The thermal conductivity of the graphene multifunctional polyester staple fibers and filaments of Examples 1 and 2 was significantly reduced. Due to the addition of functional powders in the fibers and the design of a hollow and flattened structure, the fibers have lower thermal conductivity and better heat retention. The graphene multifunctional nylon filament of Example 3 has higher thermal conductivity than ordinary nylon and is suitable for cooling products used in summer.

[0031] [Table 4]

[0032] 5. Antistatic Measurement Based on the standard GB / T 14342-2015 resistivity measurement method for chemical staple fibers, resistivity measurements were performed on the graphene multifunctional polyester staple fibers of Example 1 and Comparative Example 1, and the ordinary polyester staple fiber of Comparative Example 1, respectively. Before measurement, both types of fibers were treated with oil-free and water-free agents. As shown in Table 5, the graphene multifunctional polyester staple fiber has a lower resistivity than the ordinary polyester staple fiber, indicating superior antistatic properties.

[0033] [Table 5]

[0034] The fibers of Example 2 and Comparative Example 2 were each knitted into 280g of flannel fabric, which contained 50wt% continuous filaments. Based on the half-life and frictional voltage of the standard JIS L 1094 test sample, the measurement results, as shown in Table 6, indicate that the graphene multifunctional polyester continuous filaments and nylon continuous filaments of this application have superior electrostatic resistance compared to ordinary polyester continuous filaments and nylon continuous filaments.

[0035] [Table 6]

[0036] (Application Example 1) The graphene multifunctional cotton-like precipitate flakes contain the graphene multifunctional polyester short fibers obtained in Example 1, and as shown in Figure 4, the graphene multifunctional polyester content is 30 wt%, and as shown in Figure 4, the fibers are opened, mixed, and formed into cotton-like precipitate flakes.

[0037] (Application Example 2) The graphene multifunctional cotton-like precipitate flannel contains the graphene multifunctional polyester continuous filaments obtained in Example 2, and as shown in Figure 5, the graphene multifunctional polyester continuous filaments are distributed on the surface of the flannel fabric, with a weight ratio of 30 wt%, and the fabric is knitted using a warp knitting machine.

[0038] (Application Example 3) A graphene multi-functional jersey comprising the graphene multi-functional nylon continuous filament obtained in Example 3, wherein the graphene multi-functional nylon continuous filament accounts for at least 50 wt% of the multi-functional jersey, and is knitted using a weft knitting machine.

[0039] 6. Dust mite repellent performance test Based on the standard JIS L 1920 repellent test method, the polyester staple fibers of Comparative Example 1 were made into cotton-like precipitate flakes with the same specifications as Application Example 1, the polyester continuous filaments of Comparative Example 2 were made into flannel fabric with the same specifications as Application Example 2, and the nylon continuous filaments of Comparative Example 3 were made into jersey fabric with the same specifications as Application Example 3. A mite-repellent performance test was then conducted. As shown in Table 7, the test results indicate that the graphene multifunctional fiber of the present invention has a high mite-repellent effect.

[0040] [Table 7]

[0041] The foregoing describes only preferred embodiments of the present application and does not limit it; any modifications, equivalent substitutions, improvements, etc., made in the spirit and principles of the present application should be included within the scope of protection.

Claims

1. Graphene multifunctional fiber, The graphene multifunctional fiber is spun by mixing a fiber main material and a graphene functional masterbatch, wherein the weight ratio of the fiber main material is 80% to 98%, and the weight ratio of the graphene functional masterbatch is 2% to 20%, and the graphene functional masterbatch is characterized by containing 70 to 90 parts of base material, 1 to 15 parts of graphene powder, 1 to 15 parts of light-absorbing and heat-insulating material, 5 to 15 parts of antibacterial material, 3 to 15 parts of antistatic material, 0.1 to 2 parts of auxiliary material, and 0.1 to 10 parts of mite-repellent material.

2. The graphene multifunctional fiber according to claim 1, characterized in that the fiber body material and the base material are a polymer of the same material, and one of polyester, polyamide, polypropylene, or polyolefin is selected.

3. The graphene multifunctional fiber according to claim 1, characterized in that the light-absorbing and heat-insulating material is a combination of one or more of antimond-doped tin oxide, indium tin oxide, tungsten oxide, carbohydrates, carbon nanotubes, and cesium tungsten bronze.

4. The graphene multifunctional fiber according to claim 1, characterized in that the antibacterial agent is an organic antibacterial agent and / or an inorganic antibacterial agent, the organic antibacterial agent is polyhexamethylene guanidine, and the inorganic antibacterial agent is a silver ion-based antibacterial agent, a zinc ion-based antibacterial agent, or a copper ion-based antibacterial agent.

5. The graphene multifunctional fiber according to any one of claims 1 to 4, characterized in that the auxiliary agent is a coupling agent and / or a dispersant and / or a crosslinking agent, the coupling agent is one of a triethoxyvinylsilane coupling agent, isopropyl titanium triisostearate coupling agent, titanium aluminum composite coupling agent, stearate coupling agent or phosphate ester coupling agent, and the dispersant is one of a pentaerythritol tetrastearate or polyethylene wax.

6. The graphene multifunctional fiber according to claim 5, characterized in that the mite-repellent material is permethrin.

7. A method for producing graphene multifunctional fibers according to claim 6, Step 1 involves weighing each component of a graphene functional masterbatch by weight percentage, placing each in a vacuum drying oven, drying at a vacuum of <100 Pa and a temperature of 120-180°C for 8-15 hours, mixing the dried graphene powder, light-absorbing and insulating material, antibacterial material, antistatic material, dispersant, and mite-proof material, mixing with the base material, coupling agent, and crosslinking agent under high-speed stirring, and after uniform mixing, stretching and cutting into pellets via a twin-screw extruder, thereby manufacturing a graphene functional masterbatch. A method for producing a graphene multifunctional fiber according to claim 6, comprising step 2 of producing a graphene multifunctional fiber, which is to weigh a fiber main material and a graphene functional masterbatch in weight percentage and produce a graphene multifunctional continuous filament or short fiber using melt spinning technology.

8. The method for producing graphene multifunctional fibers according to claim 7, characterized in that the cross-section of the obtained graphene multifunctional fibers is circular, hollow, flattened, triangular, trefoil, cross-shaped, or double cross-shaped.

9. Graphene multifunctional cotton-like precipitate flakes, The graphene multifunctional cotton-like precipitate flakes are characterized by containing graphene multifunctional short fibers having a hollow cross-section as described in claim 8.

10. Graphene multi-functional plush fabric, The graphene multifunctional plush fabric is characterized by comprising a continuous graphene multifunctional filament having a triangular or flattened cross-section as described in claim 8.

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