A textile with jellyfish repellent function and its preparation method and application

Abstract

The present invention discloses a textile with jellyfish repellent function, its preparation method, and application. The surface of the textile is deposited with micro-nanoparticles containing a jellyfish repellent. The jellyfish repellent is elemental sulfur or a mixture of elemental sulfur and lanthanum chloride. The micro-nanoparticles have a core-shell structure with different axes, wherein the core layer is composed of the jellyfish repellent, the shell layer is composed of an adhesive, and the shell layer covers 10-60% of the outer surface area of ​​the core layer. The textile not only significantly inhibits the release of jellyfish stings, providing protection against jellyfish stings, but also exhibits excellent air permeability and hydrophobicity. In particular, the micro-nanoparticles exhibit good adhesion to the textile, making it durable enough to withstand multiple washes. The textile is expected to be used in the manufacture of marine protective clothing with jellyfish repellent function, possessing significant application value for marine operations and combat personnel.

Description

Technical Field

[0001] The invention relates to a textile with a jellyfish repellent function, a preparation method and an application thereof, and belongs to the technical field of marine life protection. Background Art

[0002] Jellyfish are plankton that live in the ocean and belong to the phylum Cnidaria. A jellyfish's nematocysts are composed of three parts: a cyst wall, hollow stinging threads, and a receptor. When at rest, the stinging threads are inverted within the cyst. However, upon stimulation, the nematocysts launch barbed stinging threads at high speed into humans or animals in the ocean. This firing of stinging threads is the process by which the jellyfish releases its toxins, which is the essence of a jellyfish sting. Once a person is stung by a jellyfish, he or she will feel itching, numbness or burning, followed by local erythema, papules or urticaria-like rashes, which are extremely itchy and affect daily life, especially sleep. In particular, the tentacles of large jellyfish are very long, and the rashes caused are mostly linear, strip-like, whip-like, entangled or serrated, ranging from several to dozens of lines. If a person is stung in many places on the body, he or she may feel tired, muscle pain, palpitations, etc., and may also experience shortness of breath, chest tightness, thirst, cold sweats and insomnia. Those who are especially sensitive to toxins may also experience difficulty breathing, pulmonary edema and low blood pressure, posing a safety threat to marine operations and combat personnel.

[0003] Existing research shows that the process of jellyfish nematocyst emission is not neurally controlled, but is affected by a variety of external physical and chemical factors, each of which emits stinging fibers independently. If the emission of nematocysts can be inhibited by exogenous means, it can effectively protect against jellyfish attacks. Therefore, if a method that can inhibit the emission of jellyfish nematocysts can be developed, it will be the safest and most effective fundamental protective measure to prevent jellyfish stings. In particular, if a textile that can inhibit the emission of jellyfish nematocysts and thus has jellyfish repellent function can be developed for use in the production of protective clothing, it will be of great significance to marine operations and combat personnel. However, no related technologies and products have been reported so far. Summary of the Invention

[0004] In view of the above problems and needs in the prior art, the object of the present invention is to provide a textile with jellyfish repellent function and a preparation method and application thereof.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following specific technical solutions:

[0006] A textile with a jellyfish repellent function. Micro-nano particles containing a jellyfish repellent are deposited on the surface of the textile. The jellyfish repellent is elemental sulfur or a mixture of elemental sulfur and lanthanum chloride. The micro-nano particles have a core-shell structure with different axes, wherein: a core layer is composed of the jellyfish repellent, a shell layer is composed of an adhesive, and the shell layer covers 10 to 60% of the outer surface area of ​​the core layer.

[0007] In a preferred embodiment, the adhesive is thermoplastic polyurethane.

[0008] In a preferred embodiment, in the mixture, the mass ratio of elemental sulfur to lanthanum chloride is 5:1.

[0009] In a preferred embodiment, the particle size of the micro-nano particles is between 500 nanometers and 2 micrometers.

[0010] A method for preparing the above-mentioned textile with jellyfish repellent function uses a high-voltage electrostatic spray device, which includes a core fluid syringe, a core fluid injection pump, a shell fluid syringe, a shell fluid injection pump, an electrospray nozzle and a receiving plate. The electrospray nozzle is composed of a shell fluid output capillary and a core fluid output capillary. The shell fluid output capillary is a vertical tube, and the core fluid output capillary is a curved tube composed of a vertical section and a curved section. The outer diameter of the vertical section is smaller than the inner diameter of the shell fluid output capillary. The vertical section is inserted into the shell fluid output capillary, and the curved section extends from the side of the shell fluid output capillary. In addition, the outer wall of the vertical section is in close contact with the inner wall of the shell fluid output capillary.

[0011] In a preferred embodiment, the inner angle formed by the curved section and the vertical section of the core layer fluid output capillary is greater than or equal to 90 degrees and less than 180 degrees.

[0012] In one embodiment, the connection between the core layer fluid output capillary tube and the shell layer fluid output capillary tube is sealed with epoxy resin glue.

[0013] In one embodiment, the method comprises the following specific steps:

[0014] ①Prepare electrospray working fluid

[0015] Sublimed sulfur (S) or sublimed sulfur (S) and lanthanum chloride (LaCl3) are weighed and dissolved in carbon disulfide (CS2) solvent to prepare a core electrospray working fluid;

[0016] Thermoplastic polyurethane (TPU) was weighed and dissolved in a mixed solvent of tetrahydrofuran and N,N-dimethylformamide in a volume ratio of 1:1 to prepare a shell electrospray working fluid;

[0017] ② Add the prepared core layer electrospray working fluid to the core layer fluid syringe, then install the core layer fluid syringe on the core layer fluid injection pump, and connect the liquid outlet of the core layer fluid syringe to the liquid inlet of the core layer fluid output capillary through a hose; similarly, add the prepared shell layer electrospray working fluid to the shell layer fluid syringe, then install the shell layer fluid syringe on the shell layer fluid injection pump, and connect the liquid outlet of the shell layer fluid syringe to the liquid inlet of the shell layer fluid output capillary through a hose;

[0018] ③ Electrically connect the high-voltage generator to the electrospray nozzle, place a receiving plate directly below the electrospray nozzle, lay the textile flat on the receiving plate (the receiving plate is a cardboard wrapped with aluminum foil), and ground the receiving plate;

[0019] ④ The parameters of the high-voltage electrostatic spray are controlled as follows: voltage 10±1 kV, distance between the receiving plate and the spray nozzle 10±1 cm, ambient temperature 23±3°C, ambient relative humidity 50±10%, flow rate of the core layer electrospray working fluid 1 mL / h, and flow rate of the shell layer electrospray working fluid 2 mL / h; then the core layer fluid injection pump, shell layer fluid injection pump and high voltage generator are started, and the electrospray is used to form micro-nanoparticles with different axial core-shell structures and deposit them on the surface of the textile laid on the receiving plate.

[0020] In a preferred embodiment, in the core layer electrospray working fluid, the concentration of sulfur is 5% to 10%, and the concentration of lanthanum chloride is 0.01% to 1.0%, and the unit of the concentration is g / mL.

[0021] In a preferred embodiment, the core electrospray working fluid is a mixed carbon disulfide solution formed by sulfur with a concentration of 5% and lanthanum chloride with a concentration of 1%, and the unit of the concentration is g / mL.

[0022] In a preferred embodiment, the concentration of thermoplastic polyurethane (TPU) in the shell electrospray working fluid is 1% to 5%, and the unit of the concentration is g / mL.

[0023] One application of the textile with jellyfish repellent function described in the present invention is to make marine protective clothing with jellyfish repellent function.

[0024] Compared with the prior art, the present invention has the following significant beneficial effects:

[0025] Experimental results of the present invention show that the textile of the present invention, due to the micro-nanoparticles containing jellyfish repellent and having different core-shell structures deposited on its surface, can not only significantly inhibit the emission of jellyfish stinging cysts and have a repellent function to protect against jellyfish stings, but also has excellent air permeability and hydrophobicity. In particular, the micro-nanoparticles have good adhesion to the textile and can withstand multiple washings. Therefore, the textile can be used to make marine protective clothing with jellyfish repellent function, which is of great significance for marine operations and combat personnel. Therefore, the textile with jellyfish repellent function of the present invention has application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the microstructure of the micro-nano particles of the present invention;

[0027] Figure 2 1. A schematic diagram of the structure of the high-voltage electrostatic spray device of the present invention (A) and a diagram of its state during electrospraying (B);

[0028] Figure 3 This is a photo of the electrospray nozzle in the high-voltage electrostatic spray device of the present invention;

[0029] Figure 4 yes Figure 3 A partial enlarged view of part A in the middle;

[0030] Figure 5 is a scanning electron microscope image of the surface of the textile prepared in Example 1;

[0031] Figure 6 is a particle size distribution diagram of micro-nano particles on the surface of the textile prepared in Example 1;

[0032] Figure 7 is a scanning electron microscope image of the surface of the textile prepared in Example 2;

[0033] Figure 8 is a particle size distribution diagram of micro-nano particles on the surface of the textile prepared in Example 2;

[0034] Figure 9 are microphotographs of the nematocysts in each experimental group before and after stimulation, wherein: A is a microphotograph of artificial seawater (blank control group) before stimulation, B is a microphotograph of artificial seawater (blank control group) after stimulation, C is a microphotograph of the textile prepared in Example 1 immersed in the artificial seawater before stimulation, D is a microphotograph of the textile prepared in Example 1 immersed in the artificial seawater after stimulation, E is a microphotograph of the textile prepared in Example 2 immersed in the artificial seawater before stimulation, and F is a microphotograph of the textile prepared in Example 2 immersed in the artificial seawater after stimulation; scale bar in the figure = 50 μm;

[0035] Figure 10 These are photos showing that the textiles prepared by the present invention have breathable properties, wherein: A is the textile prepared in Example 1; B is the textile prepared in Example 2;

[0036] Figure 11 This is a photograph showing that the textile prepared by the present invention has hydrophobic properties;

[0037] Figure 12 This is to reflect the washing resistance of the textile prepared in Example 1;

[0038] Figure 13 This shows the washing resistance of the textile prepared in Example 2.

[0039] The numbers in the figure are as follows:

[0040] a, micro-nanoparticles; a-1, core layer; a-2, shell layer; 01, core layer fluid syringe; 02, core layer fluid injection pump; 03, shell layer fluid syringe; 04, shell layer fluid injection pump; 05, electrospray nozzle; 05-1, shell layer fluid output capillary; 05-11, liquid inlet of shell layer fluid output capillary; 05-2, core layer fluid output capillary; 05-21, vertical section; 05-22, curved section; 05-23, liquid inlet of core layer fluid output capillary; θ, inner angle formed by curved section 05-22 and vertical section 05-21; 05-3, meniscus-shaped cavity; 06, receiving plate; 07, hose; 08, textile. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with specific examples. It should be understood that these examples are intended to illustrate the present invention only and are not intended to limit the scope of the invention. The experimental methods in the following examples, for which specific conditions are not specified, are generally performed under conventional conditions or as recommended by the manufacturer.

[0042] Example 1

[0043] The textile with jellyfish repellent function described in this embodiment refers to a textile having micro-nano particles a deposited on the surface of the textile containing a jellyfish repellent, wherein the jellyfish repellent is elemental sulfur or a mixture of elemental sulfur and lanthanum chloride, and the micro-nano particles a have a core-shell structure with different axes (see Figure 1 ), wherein the core layer a-1 is composed of the jellyfish repellent, the shell layer a-2 is composed of an adhesive, and the shell layer a-2 covers 10-60% of the outer surface area of ​​the core layer a-1. This partial coverage has the advantage of ensuring the adhesion between the micro-nanoparticles and the textile fibers while not affecting the repellent effect of the jellyfish repellent.

[0044] The preparation of the textile with jellyfish repellent function of the present invention is to use a high-voltage electrostatic spray device. The specific structure of the high-voltage electrostatic spray device is shown in FIG. Figures 2 to 4As shown: it includes a core layer fluid injector 01, a core layer fluid injection pump 02, a shell layer fluid injector 03, a shell layer fluid injection pump 04, an electrospray nozzle 05 and a receiving plate 06, the electrospray nozzle 05 is composed of a shell layer fluid output capillary 05-1 and a core layer fluid output capillary 05-2, the shell layer fluid output capillary 05-1 is a vertical tube, the core layer fluid output capillary 05-2 is a curved tube composed of a vertical section 05-21 and a curved section 05-22, the outer diameter of the vertical section 05-21 is smaller than the inner diameter of the shell layer fluid output capillary 05-1, the vertical section 05-21 is arranged in the shell layer fluid output capillary 05-1, the curved section 05-22 is passed through the side of the shell layer fluid output capillary 05-1, and the outer wall of the vertical section 05-21 is in close contact with the inner wall of the shell layer fluid output capillary 05-1.

[0045] The non-coaxial core-shell structure of the micro-nanoparticles a described in the present invention is formed by the above-mentioned special structure of the electrospray nozzle 05, because the core layer fluid output capillary 05-2 and the shell layer fluid output capillary 05-1 are designed to be non-coaxial; and by adjusting the outer diameter of the vertical section 05-21 of the core layer fluid output capillary 05-2, the size of the meniscus-shaped cavity 05-3 formed between the outer wall of the vertical section 05-21 and the inner wall of the shell layer fluid output capillary 05-1 can be controlled, thereby realizing the adjustment of the coverage ratio of the shell layer a-2 to the peripheral surface area of ​​the core layer a-1.

[0046] As a preferred option:

[0047] The inner angle θ formed by the curved section 05-22 and the vertical section 05-21 of the core layer fluid output capillary 05-2 is greater than or equal to 90 degrees and less than 180 degrees, which is conducive to the smooth ejection of the core layer fluid; the connection between the core layer fluid output capillary 05-2 and the shell layer fluid output capillary 05-1 is sealed with epoxy resin glue.

[0048] The method for preparing the textile with jellyfish repellent function of the present invention using the high-voltage electrostatic spray device specifically comprises the following steps:

[0049] ①Prepare electrospray working fluid

[0050] 1.0 g of sublimed sulfur (commercially available) was weighed and dissolved in 10 mL of carbon disulfide (CS2) solvent (commercially available) to prepare a carbon disulfide solution with a sulfur concentration of 10% as the core electrospray working fluid;

[0051] Weigh 0.3 g of TPU (model 1185a, molecular weight 1×10 5 g·mol -1, produced by BASF, Germany), was dissolved in 10 mL of a mixed solvent of tetrahydrofuran and N,N-dimethylformamide in a volume ratio of 1:1 to prepare a 3% TPU solution as a shell electrospray working fluid;

[0052] ② Add the prepared core layer electrospray working fluid to the core layer fluid syringe 01, then install the core layer fluid syringe 01 on the core layer fluid injection pump 02, and connect the liquid outlet of the core layer fluid syringe 01 to the liquid inlet 05-23 of the core layer fluid output capillary through the hose 07; similarly, add the prepared shell layer electrospray working fluid to the shell layer fluid syringe 03, then install the shell layer fluid syringe 03 on the shell layer fluid injection pump 04, and connect the liquid outlet of the shell layer fluid syringe 03 to the liquid inlet 05-11 of the shell layer fluid output capillary through the hose 07 (please refer to the following table for details). Figure 2 and Figure 3 shown);

[0053] ③ Make the high voltage generator (not shown) electrically connected to the electrospray nozzle 05, place the receiving plate 06 directly below the electrospray nozzle 05, and lay the textile 08 (waterproof polyester cloth is used in this embodiment) flat on the receiving plate 06. The receiving plate 06 is a cardboard wrapped with aluminum foil, and the receiving plate 06 is grounded (see Figure 2 shown);

[0054] ④ The parameters of the high-voltage electrostatic spray are controlled as follows: voltage 10 kV, the distance between the receiving plate and the spray port is 10 cm, the ambient temperature is 23°C, the ambient relative humidity is 50%, the flow rate of the core layer electrospray working fluid is 1 mL / h, and the flow rate of the shell layer electrospray working fluid is 2 mL / h; then the core layer fluid injection pump 02 and the shell layer fluid injection pump 04 and the high-voltage generator are started, and the electrospray forms micro-nano particles a with different axial core-shell structures and deposits them on the surface of the textile 08 laid on the receiving plate; finally, the textile with the deposited micro-nano particles is placed in a 40°C oven for vacuum drying for 72 hours to remove the solvent therein, thereby forming the textile with jellyfish repellent function of the present invention.

[0055] Figure 5 is a scanning electron microscope image of the textile surface prepared in this embodiment, Figure 5 As shown, micro-nano particles of relatively uniform size are uniformly adhered to the surface of the textile fibers, and there are gaps between the particles.

[0056] Figure 6 is the particle size distribution diagram of the micro-nano particles on the surface of the textile prepared in this embodiment, Figure 6As shown, the particle size of the micro-nano particles prepared in this embodiment is 1.142±0.486 μm, and the particle size of the micro-nano particles is between 500 nanometers and 2 micrometers.

[0057] Example 2

[0058] The only difference between this embodiment and embodiment 1 is that the core electrospray working fluid is a mixed carbon disulfide solution with a sulfur concentration of 5% and a lanthanum chloride concentration of 1%, which is prepared by weighing 0.5 g of sublimed sulfur (commercially available) and 0.1 g of lanthanum chloride (LaCl3, commercially available) and dissolving them in 10 mL of carbon disulfide (CS2) solvent (commercially available); the jellyfish repellent is a mixture of elemental sulfur and lanthanum chloride in a mass ratio of 5:1; the rest of the contents are the same as those described in embodiment 1.

[0059] Figure 7 is a scanning electron microscope image of the textile surface prepared in this embodiment, Figure 7 As shown, micro-nano particles of relatively uniform size are uniformly adhered to the surface of the textile fibers, and there are gaps between the particles.

[0060] Figure 8 is the particle size distribution diagram of the micro-nano particles on the surface of the textile prepared in this embodiment, Figure 8 As shown, the particle size of the micro-nano particles prepared in this embodiment is 1.133±0.433 μm, and the particle size of the micro-nano particles is between 500 nanometers and 2 micrometers.

[0061] 1. Experiment on the Inhibitory Effect of the Textile Prepared by the Present Invention on the Emission of Jellyfish Nematocysts:

[0062] 1. Preparation of freeze-dried samples of unfired jellyfish nematocysts

[0063] ① Remove the frozen jellyfish tentacles, add an equal amount of artificial seawater, and autolyze at 4°C for 4 days. Then pass the sample through a sieve twice, centrifuge the filtrate at 2000×g for 3 minutes at 4°C, and re-dissolve the precipitate in artificial seawater.

[0064] ② Use artificial seawater to prepare 0%, 50%, 70%, and 90% Percoll cell separation solutions, and lay them in descending order of concentration. Then, mix the reconstituted sample obtained in step ① with 60% Percoll cell separation solution in a volume ratio of 1:1, and then spread it on top of the medium;

[0065] ③ Use a horizontal rotor and centrifuge at 1000×g for 20 minutes at 4°C. Remove the tissue cell fragments and the launched nematocysts in the upper part according to the color and turbidity of the separation system. Then centrifuge the remaining Percoll suspension of nematocysts at 10,000×g for 20 minutes at 4°C, wash it once with artificial seawater, and centrifuge it at 10,000×g for 20 minutes at 4°C. The obtained precipitate is freeze-dried to obtain the freeze-dried sample of unfired jellyfish nematocysts.

[0066] 2. Inhibition experiment

[0067] Cut the finished textile fabric (2*2 cm) prepared in Example 1 and place it in a first beaker. Then, add 5 mL of artificial seawater and soak at room temperature for 1 hour to obtain the soaking solution of Example 1.

[0068] Cut the finished textile fabric (2*2 cm) prepared in Example 2 and place it in a second beaker. Then, add 5 mL of artificial seawater and soak at room temperature for 1 hour to obtain the soaking solution of Example 2.

[0069] 1.5 mg of unfired jellyfish nematocyst freeze-dried sample was placed in a 1.5 mL centrifuge tube, and 4°C artificial seawater was added to the volume. The tube was then placed in a 25°C water bath and shaken for 10 min to obtain a nematocyst suspension.

[0070] The obtained nematocyst suspension was equally divided into three centrifuge tubes, the nematocyst suspension in one of the centrifuge tubes was used as a blank control solution, 2.5 mL of the soaking solution of Example 1 was added to the nematocyst suspension in another centrifuge tube, and 2.5 mL of the soaking solution of Example 2 was added to the nematocyst suspension in the remaining centrifuge tube; then, all three centrifuge tubes were placed in a 25°C water bath and shaken for 10 minutes;

[0071] For each solution, three slides were taken in parallel, 20 μL of solution was added to each slide, and then covered with a cover slip. The total number of nematocysts on each slide before stimulation and the number of launched nematocysts were observed under a microscope.

[0072] Then, a 5-gram weight was placed on each coverslip to give pressure stimulation to the nematocysts. After the pressure was applied for 5 minutes, the number of nematocysts released on each slide after the stimulation was observed under a microscope.

[0073] Finally, the discharged nematocytic ratio of the jellyfish in each experimental solution was calculated:

[0074] Nematocyst emission rate = number of nematocysts emitted / total number of nematocysts × 100%;

[0075] In order to reduce the subjective error of counting, Photoshop software was used for counting statistics.

[0076] The experimental results are shown in Table 1:

[0077] Table 1 The firing rates of nematocysts in each experimental group before and after stimulation

[0078]

[0079] Figure 9 are microphotographs of the nematocysts in each experimental group before and after stimulation, wherein: A is a microphotograph of artificial seawater (blank control group) before stimulation, B is a microphotograph of artificial seawater (blank control group) after stimulation, C is a microphotograph of the textile prepared in Example 1 immersed in artificial seawater before stimulation, D is a microphotograph of the textile prepared in Example 1 immersed in artificial seawater after stimulation, E is a microphotograph of the textile prepared in Example 2 immersed in artificial seawater before stimulation, and F is a microphotograph of the textile prepared in Example 2 immersed in artificial seawater after stimulation.

[0080] Combined with Table 1 and Figure 9 It can be seen that the textile prepared by the present invention can significantly inhibit the emission of jellyfish nematocysts and has a repellent and protective effect against jellyfish stings in seawater.

[0081] 2. Experiment on the air permeability of the textile prepared by the present invention

[0082] The finished textiles prepared in Example 1 and Example 2 were used to cover a beaker filled with 100°C boiling water. A large amount of water vapor was observed above the finished textiles. Figure 10 As shown, it is shown that the textile prepared by the present invention still maintains excellent air permeability.

[0083] 3. Experiments on the hydrophobic properties of the textiles prepared by the present invention

[0084] Tap water, milk, coffee and seawater droplets were added to the finished textiles prepared in Example 1 and Example 2, respectively. It was observed that the droplets all maintained a spherical shape on the finished textiles prepared in Example 1 and Example 2 (see Figure 11 As shown), it shows that the textile prepared by the present invention has excellent hydrophobic properties.

[0085] IV. Experiment on the Repeated Washing Resistance of the Textile Prepared by the Present Invention

[0086] 1) Cut the finished textiles (5*5 cm) prepared in Example 1 and Example 2 respectively and place them in a beaker. Then, add 10 mL of tap water to each beaker and wash them in a 25°C water bath with shaking for 10 minutes. Then, take 2 mL of the washing liquid and measure the sulfur content in the washing liquid by ultraviolet absorbance. The retention rate of the micro-nanoparticles on the textile sample is calculated based on the percentage change in the sulfur content before and after washing (i.e., retention rate = 100 - percentage change in sulfur content). After each wash, remove the textile from the beaker, dry it naturally, then place it back in the beaker, and repeat the above washing operation.

[0087] 2) Changing the water bath temperature to 60° C., and then referring to the above operation, examining the repeated washing resistance of the finished textiles prepared in Examples 1 and 2 at 60° C.;

[0088] Figure 12 This shows the changes in the micro-nano particles of the textile prepared in Example 1 after multiple washings at different temperatures. Figure 13 This shows the changes in the micro-nano particles of the textile prepared in Example 2 after multiple washings at different temperatures; Figure 12 As shown in FIG1 , after the textile prepared in Example 1 was washed for the fourth time at room temperature, about 70% of the micro-nano particles on the textile were still retained, while after the fourth washing at 60° C., more than 55% of the micro-nano particles on the textile were still retained. Figure 13 As shown in FIG, 2 , after the textile prepared in Example 2 was washed for the sixth time at room temperature, about 75% of the micro-nano particles on the textile were still retained, while after the sixth washing at 60° C., more than 65% of the micro-nano particles on the textile were still retained. Figure 12 and Figure 13 The experimental results show that the micro-nano particles of the present invention have good adhesion to the textile and can withstand multiple washings. The resulting textile has the property of being resistant to repeated washings.

[0089] Finally, it is necessary to explain here that the above embodiments are only used to further illustrate the technical solution of the present invention in detail and cannot be understood as limiting the scope of protection of the present invention. Some non-essential improvements and adjustments made by technicians in this field based on the above content of the present invention all fall within the scope of protection of the present invention.

Claims

1. A textile with jellyfish repellent function, characterized in that: Micro-nano particles containing a jellyfish repellent are deposited on the surface of the textile. The jellyfish repellent is elemental sulfur or a mixture of elemental sulfur and lanthanum chloride. The micro-nano particles have a core-shell structure with different axes, wherein: the core layer is composed of the jellyfish repellent, the shell layer is composed of an adhesive, and the shell layer covers 10 to 60% of the outer surface area of ​​the core layer.

2. The textile with jellyfish repellent function according to claim 1, characterized in that: In the mixture, the mass ratio of elemental sulfur to lanthanum chloride is 5:

1.

3. The textile with jellyfish repellent function according to claim 1, characterized in that: The particle size of the micro-nano particles is between 500 nanometers and 2 micrometers.

4. A method for preparing a textile with jellyfish repellent function according to any one of claims 1 to 3, using a high-voltage electrostatic spray device, the high-voltage electrostatic spray device comprising a core fluid injector, a core fluid injection pump, a shell fluid injector, a shell fluid injection pump, an electrospray nozzle, and a receiving plate; characterized in that: The electrospray nozzle consists of a shell fluid output capillary and a core fluid output capillary. The shell fluid output capillary is a vertical tube, and the core fluid output capillary is a curved tube consisting of a vertical section and a curved section. The outer diameter of the vertical section is smaller than the inner diameter of the shell fluid output capillary. The vertical section is inserted into the shell fluid output capillary, and the curved section is inserted from the side of the shell fluid output capillary. In addition, the outer wall of the vertical section is in close contact with the inner wall of the shell fluid output capillary.

5. The method according to claim 4, characterized in that: The inner angle formed by the curved section and the vertical section of the core layer fluid output capillary is greater than or equal to 90 degrees and less than 180 degrees.

6. The method according to claim 4, characterized in that The method comprises the following specific steps: ①Prepare electrospray working fluid Weighing sublimed sulfur or sublimed sulfur and lanthanum chloride, and dissolving them in a carbon disulfide solvent to prepare a core electrospray working fluid; Thermoplastic polyurethane was weighed and dissolved in a mixed solvent of tetrahydrofuran and N,N-dimethylformamide in a volume ratio of 1:1 to prepare a shell electrospray working fluid; ② Add the prepared core layer electrospray working fluid to the core layer fluid syringe, then install the core layer fluid syringe on the core layer fluid injection pump, and connect the liquid outlet of the core layer fluid syringe to the liquid inlet of the core layer fluid output capillary through a hose; similarly, add the prepared shell layer electrospray working fluid to the shell layer fluid syringe, then install the shell layer fluid syringe on the shell layer fluid injection pump, and connect the liquid outlet of the shell layer fluid syringe to the liquid inlet of the shell layer fluid output capillary through a hose; ③ Electrically connect the high-voltage generator to the electrospray nozzle, place a receiving plate directly below the electrospray nozzle, lay the textile flat on the receiving plate (the receiving plate is a cardboard wrapped with aluminum foil), and ground the receiving plate; ④ The parameters of the high-voltage electrostatic spray are controlled as follows: voltage 10±1 kV, distance between the receiving plate and the spray nozzle 10±1 cm, ambient temperature 23±3°C, ambient relative humidity 50±10%, flow rate of the core layer electrospray working fluid 1 mL / h, and flow rate of the shell layer electrospray working fluid 2 mL / h; then the core layer fluid injection pump, shell layer fluid injection pump and high voltage generator are started, and the electrospray is used to form micro-nanoparticles with different axial core-shell structures and deposit them on the surface of the textile laid on the receiving plate.

7. The method according to claim 6, characterized in that: In the core layer electrospray working fluid, the concentration of sulfur is 5% to 10%, and the concentration of lanthanum chloride is 0.01% to 1.0%, and the unit of the concentration is g / mL.

8. The method according to claim 6, wherein: The core layer electrospray working fluid is a mixed carbon disulfide solution formed by sulfur with a concentration of 5% and lanthanum chloride with a concentration of 1%, and the unit of the concentration is g / mL.

9. The method according to claim 6, wherein: In the shell electrospray working fluid, the concentration of thermoplastic polyurethane is 1% to 5%, and the unit of the concentration is g / mL.

10. Use of a textile with jellyfish repellent function according to any one of claims 1 to 3, characterized in that: The textile is used to make marine protective clothing with jellyfish repelling function.

Images