Wear-resistant toughened electronic cigarette oil guide rope and preparation method thereof

Abstract

The invention discloses a wear-resistant toughened electronic cigarette oil guide rope and a preparation method thereof, and relates to the field of electronic cigarette oil guide ropes. Polyester is obtained through a polymerization reaction of hydroquinone and octadecenedioic acid, the flexibility of the fiber is improved, 3-amino-4-mercaptobenzoic acid is further used for modifying the fiber, a C-S-benzene ring structure is formed, the temperature resistance of the fiber is improved, meanwhile, a net-shaped structure is obtained through hydrogen bond crosslinking, the capillary phenomenon is formed, the oil absorption rate is increased, and the oil absorption rate is increased. The wear resistance of the fiber is improved; the high-efficiency wear-resistant coating is prepared by taking flaky nano boron nitride particles as a raw material and is subjected to epoxidation modification to form epoxy boron nitride slurry, and the epoxy boron nitride slurry is sprayed on the surface of the oil guide rope of the electronic cigarette to form a firm structure and enhance the wear resistance of the oil guide rope. The wear-resistant toughened electronic cigarette oil guide rope prepared by the invention has the effects of high oil guide efficiency, wear resistance and high toughness.

Description

Technical Field

[0001] The invention relates to the technical field of electronic cigarette oil guide ropes, and in particular to a wear-resistant and toughened electronic cigarette oil guide rope and a preparation method thereof. Background Art

[0002] The e-cigarette oil guide rope is one of the core components of the e-cigarette. It is mainly used to transport the oil from the oil storage tank to the heating element to ensure that the oil is heated and evaporated evenly and stably. The performance of the oil guide rope directly affects the taste, smoke volume and service life of the e-cigarette. At present, the common e-cigarette oil guide ropes on the market are mostly made of materials such as glass fiber, cotton fiber or polyester fiber. However, these materials have the following problems in actual use: First, the oil guide rope is easily rubbed and pulled during long-term use, resulting in fiber breakage or wear, affecting the oil guide efficiency and service life. Secondly, the existing oil guide rope is prone to breakage when subjected to external force, especially during installation or replacement, resulting in a decrease in user experience. At the same time, the oil guide rope is prone to aging or decomposition in a high temperature environment, producing harmful substances and affecting the health of users. Finally, some oil guide rope materials adsorb and transport the oil unevenly, resulting in unstable smoke volume and affecting the taste.

[0003] With the rapid development of the e-cigarette market, users have put forward higher requirements for the performance and safety of e-cigarettes. Developing an oil guide rope that has both wear resistance, toughness enhancement, high temperature resistance and efficient oil conduction performance has become a technical problem that the industry needs to solve urgently. In order to solve the above problems, some attempts to improve have appeared on the market. For example, by adding a coating or chemically treating the surface of the oil guide rope to improve its wear resistance and toughness, but these methods often have limited effects and may bring new problems, such as the stability and safety of the coating. Therefore, the development of a new type of electronic cigarette oil guide rope material and manufacturing method with good wear resistance and toughness enhancement has become a technical problem that the e-cigarette industry needs to solve urgently. Summary of the invention

[0004] The purpose of the present invention is to provide a wear-resistant and toughened electronic cigarette oil guide rope to solve the problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a wear-resistant and toughened electronic cigarette oil guide rope, wherein the wear-resistant and toughened electronic cigarette oil guide rope is made by forming a wear-resistant coating on the surface of a modified polyester fiber using a high-efficiency wear-resistant coating;

[0006] The polyester fiber is obtained by polymerization of hydroquinone and octadecenedioic acid, and further modified with 3-amino-4-mercaptobenzoic acid;

[0007] The high-efficiency wear-resistant coating is obtained by modifying nano boron nitride with epoxypropyltrimethoxysilane.

[0008] Further, it includes the following preparation steps:

[0009] (1) Add hydroquinone, octadecenedioic acid, and sulfuric acid with a mass fraction of 60% to absolute ethanol. Stir at a speed of 85 - 95 °C and 50 - 80 r / m for 8 - 10 h. Cool to room temperature, add a sodium carbonate solution with a mass fraction of 20% until the pH is 7 - 8, let stand for 30 - 60 min, separate the liquid, take the ester liquid, wash it 4 - 6 times with deionized water, separate the liquid, take the ester liquid, use anhydrous sodium sulfate to remove the excess deionized water, filter, take the ester liquid, and obtain polyester.

[0010] (2) Add polyester, 3 - amino - 4 - mercaptobenzoic acid, and benzophenone to absolute ethanol. Under a nitrogen atmosphere, stir at a wavelength of 350 - 380 nm of ultraviolet light, room temperature, and a speed of 400 - 800 r / m for 3 - 6 h. Stop the reaction, rotary evaporate the solvent, and cut the product into pellets to obtain modified polyester material.

[0011] (3) Melt - extrude the modified polyester material under a nitrogen atmosphere to obtain modified polyester fibers.

[0012] (4) Add nano - boron nitride to a sulfuric acid solution with a mass fraction of 30%. Stir at a speed of 60 - 70 °C and 200 - 500 r / m for 2 - 3 h, filter, wash the filter residue 4 - 6 times with deionized water, and dry it in a vacuum drying oven at 50 - 60 °C for 2 - 4 h to obtain pretreated nano - boron nitride.

[0013] (5) Add the pretreated nano - boron nitride and glycidyltrimethoxysilane to absolute ethanol, stir and mix evenly to form boron nitride mortar.

[0014] (6) Spray the boron nitride mortar on the surface of the modified polyester fibers, perform curing treatment, and then wind the fibers into oil - guiding ropes.

[0015] Further, in step (1) of the preparation method, by weight, hydroquinone is 60 - 80 parts, octadecenedioic acid is 50 - 70 parts, sulfuric acid with a mass fraction of 60% is 1 - 5 parts, and absolute ethanol is 80 - 100 parts.

[0016] Further, in step (2) of the preparation method, by weight, polyester is 60 - 80 parts, 3 - amino - 4 - mercaptobenzoic acid is 40 - 60 parts, benzophenone is 2 - 6 parts, and absolute ethanol is 80 - 100 parts.

[0017] Further, in step (3) of the preparation method, the melt - extrusion temperature is 250 - 260 °C, the extrusion voltage is 30 - 40 kV, and the nozzle aperture is 0.2 - 0.8 mm.

[0018] Further, in step (4) of the preparation method, by weight, 30-50 parts of nano boron nitride and 50-60 parts of sulfuric acid solution with a mass fraction of 30% are used.

[0019] Further, in step (5) of the preparation method, by weight, 30-40 parts of pretreated nano boron nitride, 50-70 parts of glycidyltrimethoxysilane, and 80-100 parts of absolute ethanol are used.

[0020] Further, in step (5) of the preparation method, the temperature of the boron nitride epoxidation reaction is 60-90 °C, the stirring speed is 200-500 r / m, and the stirring time is 30-40 min.

[0021] Further, in step (6) of the preparation method, the air pressure of the spray gun used for spraying is 0.2-0.5 MPa, the spraying distance is 10-20 cm, and the spraying is repeated 3-5 times.

[0022] Further, in step (6) of the preparation method, the curing treatment temperature is 70-90 °C, and the curing time is 2-4 h.

[0023] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0024] In the present invention, hydroquinone and octadecenedioic acid are polymerized to obtain a polyester. When the fiber is extruded by an external force, the methylene structure deforms, absorbs and disperses energy, reduces stress concentration, and increases the flexibility of the fiber. When the fiber is torn by an external force, the presence of the rigid benzene ring makes it difficult for the molecular chains to slide relative to each other, showing good tear resistance. Further, 3-amino-4-mercaptobenzoic acid is used to modify the fiber to form a C-S-benzene ring structure, which further enhances the intermolecular force and can maintain the corresponding structure even at high temperatures, improving the temperature resistance of the fiber. In addition, the modified polyesters can be bonded by hydrogen bonds, forming a rich cross-linked network structure inside the oil guiding rope fiber, resulting in a capillary phenomenon, accelerating the oil absorption rate of the fiber. At the same time, the formed three-dimensional network structure can effectively maintain the fiber structure when subjected to friction, improving the wear resistance of the oil guiding rope.

[0025] The high-efficiency wear-resistant coating uses flaky nano boron nitride particles as raw materials. The flaky hexagonal boron nitride particles have a movable layered structure. When sprayed on the fiber surface, a self-lubricating effect is formed when the fiber is subjected to friction and extrusion, improving the wear resistance of the fiber. Its stable hexagonal structure further improves the high-temperature resistance of the oil guiding cotton; then it is epoxidized and modified to form an epoxy boron nitride slurry, which is sprayed on the surface of the e-cigarette oil guiding rope. The epoxy groups on the surface of boron nitride react with the functional groups in the fiber structure of the e-cigarette oil guiding rope, enabling boron nitride to adhere to the surface of the oil guiding rope, forming a firm structure and enhancing the wear resistance of the oil guiding rope. Specific embodiments

[0026] The following will describe the technical solutions in the embodiments of the present invention clearly and completely in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0027] In order to more clearly illustrate the method provided by the present invention, the following embodiments are used for detailed description. The test methods for each index of the wear-resistant and toughened e-cigarette oil guiding rope prepared in the following embodiments are as follows:

[0028] Thermal stability: According to GB / T27761-2011, the thermal stability test is carried out on the wear-resistant and toughened e-cigarette oil guiding ropes prepared in Examples 1-3 and Comparative Examples 1-5;

[0029] Oil guiding rate: According to the following steps, the oil guiding rate test is carried out on the wear-resistant and toughened e-cigarette oil guiding ropes prepared in Examples 1-3 and Comparative Examples 1-5. The test steps include:

[0030] In an environment of room temperature 25°C and 101KPa, the oil guiding rate of the super-hydrophilic oil guiding cotton is tested by using a mayzum atomizing core oil guiding rate tester;

[0031] Oil storage rate: According to the following steps, the oil storage rate test is carried out on the wear-resistant and toughened e-cigarette oil guiding ropes prepared in Examples 1-3 and Comparative Examples 1-5. The test steps include:

[0032] (1) Weigh the initial weight G0 of the oil guiding cotton

[0033] (2) Place the oil guiding cotton in step (1) into the e-cigarette oil, take it out after staying for 2 minutes, place it in a filter screen for rough filtration for 2 minutes, and weigh its weight G1;

[0034] (3) Place the oil guiding cotton in step (2) in an oscillator, the oscillation time is 5 minutes, and the oscillation frequency is 300 r / s, and weigh its weight G2;

[0035] (4) Use the formula Calculate the oil storage rate W f ;

[0036] Mechanical properties: According to GB / T1040.1, the mechanical property test is carried out on the wear-resistant and toughened e-cigarette oil guiding ropes prepared in Examples 1-3 and Comparative Examples 1-5.

[0037] Example 1

[0038] (1) Add 60 parts by mass of hydroquinone, 50 parts by mass of octadecenedioic acid, and 1 part by mass of sulfuric acid with a mass fraction of 60% to 80 parts by mass of absolute ethanol. Stir at 90 °C and a speed of 65 r / m for 9 h. Cool to room temperature, add a 20% sodium carbonate solution until the pH reaches 7.5, let stand for 50 min, separate the liquid, take the ester liquid, wash it 5 times with deionized water, separate the liquid, take the ester liquid, use anhydrous sodium sulfate to remove the excess deionized water, filter, take the ester liquid, and obtain the polyester;

[0039] (2) Add 60 parts by mass of polyester, 40 parts by mass of 3-amino-4-mercaptobenzoic acid, and 2 parts by mass of benzophenone to 80 parts by mass of absolute ethanol. Stir under a nitrogen atmosphere at a wavelength of 365 nm of ultraviolet light, room temperature, and a speed of 600 r / m for 5 h. Stop the reaction, rotary evaporate the solvent, and cut the product into pellets to obtain the modified polyester material;

[0040] (3) Melt and extrude the modified polyester material at 255 °C, 35 kV, and under a nitrogen atmosphere. The nozzle aperture is 0.5 mm to obtain the modified polyester fiber;

[0041] (4) Add 30 parts by mass of hexagonal nano boron nitride with a particle size of 80 nm to 50 parts by mass of sulfuric acid solution with a mass fraction of 30%. Stir at 65 °C and a speed of 300 r / m for 2.5 h, filter, wash the filter residue 5 times with deionized water, and dry it in a vacuum drying oven at 55 °C for 3 h to obtain the pretreated nano boron nitride;

[0042] (5) Add 30 parts by mass of the pretreated nano boron nitride and 50 parts by mass of glycidyltrimethoxysilane to 80 parts by mass of absolute ethanol. Stir at 70 °C and a speed of 300 r / m for 35 min to form a boron nitride mortar after mixing evenly;

[0043] (6) Spray the boron nitride mortar on the surface of the modified polyester fiber. The air pressure of the spray gun is 0.35 MPa, the spraying distance is 15 cm, and spray repeatedly 4 times. Cure at 80 °C for 3 h, and then wind the fiber into an oil guiding rope.

[0044] Example 2

[0045] (1) Add 70 parts by mass of hydroquinone, 60 parts by mass of octadecenedioic acid, and 3 parts by mass of sulfuric acid with a mass fraction of 60% to 90 parts by mass of absolute ethanol. Stir at 90 °C and a speed of 65 r / m for 9 h. Cool to room temperature, add a 20% sodium carbonate solution until the pH reaches 7.5, let stand for 50 min, separate the liquid, take the ester liquid, wash it 5 times with deionized water, separate the liquid, take the ester liquid, use anhydrous sodium sulfate to remove the excess deionized water, filter, take the ester liquid, and obtain the polyester;

[0046] (2) Add 70 parts by mass of polyester, 50 parts by mass of 3-amino-4-mercaptobenzoic acid, and 4 parts by mass of benzophenone to 90 parts by mass of absolute ethanol. Under a nitrogen atmosphere, stir at a speed of 600 r / m at room temperature with ultraviolet light of 365 nm for 5 h. Stop the reaction, rotary evaporate the solvent, and discharge and pelletize to obtain modified polyester material;

[0047] (3) Melt-extrude the modified polyester material at 255 °C, 35 kV under a nitrogen atmosphere. The nozzle aperture is 0.5 mm to obtain modified polyester fibers;

[0048] (4) Add 40 parts by mass of hexagonal nano boron nitride with a particle size of 80 nm to 55 parts by mass of sulfuric acid solution with a mass fraction of 30%. Stir at a speed of 300 r / m at 65 °C for 2.5 h, filter, wash the filter residue 5 times with deionized water, and dry in a vacuum drying oven at 55 °C for 3 h to obtain pretreated nano boron nitride;

[0049] (5) Add 35 parts by mass of pretreated nano boron nitride and 60 parts by mass of glycidyltrimethoxysilane to 90 parts by mass of absolute ethanol. Stir at a speed of 300 r / m at 70 °C for 35 min, and mix evenly to form boron nitride mortar;

[0050] (6) Spray the boron nitride mortar on the surface of the modified polyester fiber. The air pressure of the spray gun is 0.35 MPa, the spraying distance is 15 cm, spray repeatedly 4 times, cure at 80 °C for 3 h, and then wind the fiber into an oil guiding rope.

[0051] Example 3

[0052] (1) Add 80 parts by mass of hydroquinone, 70 parts by mass of octadecenedioic acid, and 5 parts by mass of sulfuric acid with a mass fraction of 60% to 100 parts by mass of absolute ethanol. Stir at a speed of 65 r / m at 90 °C for 9 h, cool to room temperature, add sodium carbonate solution with a mass fraction of 20% until the pH is 7.5, stand for 50 min, separate the liquid, take the ester liquid, wash 5 times with deionized water, separate the liquid, take the ester liquid, use anhydrous sodium sulfate to remove the excess deionized water, filter, take the ester liquid to obtain polyester;

[0053] (2) Add 80 parts by mass of polyester, 60 parts by mass of 3-amino-4-mercaptobenzoic acid, and 6 parts by mass of benzophenone to 100 parts by mass of absolute ethanol. Under a nitrogen atmosphere, stir at a speed of 600 r / m at room temperature with ultraviolet light of 365 nm for 5 h. Stop the reaction, rotary evaporate the solvent, and discharge and pelletize to obtain modified polyester material;

[0054] (3) Melt-extrude the modified polyester material at 255 °C, 35 kV under a nitrogen atmosphere. The nozzle aperture is 0.5 mm to obtain modified polyester fibers;

[0055] (4) Add 50 parts by mass of hexagonal nano boron nitride with a particle size of 80 nm to 60 parts by mass of a sulfuric acid solution with a mass fraction of 30%. Stir at 65 °C and a speed of 300 r / m for 2.5 h, filter, wash the filter residue 5 times with deionized water, and dry in a vacuum drying oven at 55 °C for 3 h to obtain pretreated nano boron nitride;

[0056] (5) Add 40 parts by mass of pretreated nano boron nitride and 70 parts by mass of glycidyltrimethoxysilane to 100 parts by mass of absolute ethanol. Stir at 70 °C and a speed of 300 r / m for 35 min to form a boron nitride mortar after mixing evenly;

[0057] (6) Spray the boron nitride mortar on the surface of the modified polyester fiber. The air pressure of the spray gun is 0.35 MPa, the spraying distance is 15 cm, and spray repeatedly 4 times. Cure at 80 °C for 3 h, and then wind the fiber into an oil guiding rope.

[0058] Comparative Example 1

[0059] The difference between Comparative Example 1 and Example 2 is that in step (1), octadecenedioic acid is replaced with oxalic acid, and the remaining steps are the same as those in Example 2.

[0060] Comparative Example 2

[0061] The difference between Comparative Example 2 and Example 2 is that in step (2), 3-amino-4-mercaptobenzoic acid is removed, and the remaining steps are the same as those in Example 2.

[0062] Comparative Example 3

[0063] The difference between Comparative Example 3 and Example 2 is that step (4) is removed, and in step (5), pretreated nano boron nitride is removed, and the remaining steps are the same as those in Example 2.

[0064] Comparative Example 4

[0065] The difference between Comparative Example 4 and Example 2 is that in step (5), glycidyltrimethoxysilane is removed, and the remaining steps are the same as those in Example 2.

[0066] Comparative Example 5

[0067] The difference between Comparative Example 5 and Example 2 is that in step (6), the boron nitride mortar is removed, and the remaining steps are the same as those in Example 2.

[0068] Effect Example

[0069] The following Table 1 shows the performance analysis results of the wear-resistant and toughened e-cigarette oil guiding ropes of Examples 1 to 3 and Comparative Examples 1 to 5 of the present invention.

[0070] Table 1

[0071]

[0072] From the results in Table 1, it is found that a polyester is obtained by the polymerization reaction of hydroquinone and octadecenedioic acid. The methylene structure therein deforms when the fiber is extruded by an external force, absorbs and disperses energy, reduces stress concentration, and increases the flexibility of the fiber. When the fiber is torn by an external force, the presence of the rigid benzene ring makes it difficult for the molecular chains to slide relative to each other, showing good tear resistance. Further, the fiber is modified with 3-amino-4-mercaptobenzoic acid to form a C-S-benzene ring structure, which further enhances the intermolecular force and can maintain the corresponding structure even in a high-temperature environment, improving the temperature resistance of the fiber. In addition, the modified polyesters can be bonded by hydrogen bonds, forming a rich cross-linked network structure inside the oil guide rope fiber, resulting in capillary action, accelerating the oil absorption rate of the fiber, and at the same time, the formed three-dimensional network structure can effectively maintain the fiber structure when subjected to friction, improving the wear resistance of the oil guide rope.

[0073] The high-efficiency wear-resistant coating uses flaky nano boron nitride particles as raw materials. The flaky hexagonal boron nitride particles have a layered structure that can move. Sprayed on the surface of the fiber, when the fiber is subjected to friction and extrusion, a self-lubricating effect is formed, improving the wear resistance of the fiber. Its stable hexagonal structure further improves the high-temperature resistance of the oil guide cotton; then it is epoxidized to form an epoxy boron nitride slurry, which is sprayed on the surface of the e-cigarette oil guide rope. The epoxy groups on the surface of boron nitride react with the functional groups in the fiber structure of the e-cigarette oil guide rope, enabling boron nitride to adhere to the surface of the oil guide rope, forming a firm structure and enhancing the wear resistance of the oil guide rope.

[0074] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claimed rights.

Claims

1. A wear-resistant and toughened electronic cigarette oil guide rope, characterized in that: The wear-resistant and toughened electronic cigarette oil guide rope is made by using a high-efficiency wear-resistant coating to form a wear-resistant coating on the surface of a modified polyester fiber; The polyester fiber is obtained by polymerization of hydroquinone and octadecenedioic acid, and further modified with 3-amino-4-mercaptobenzoic acid; The high-efficiency wear-resistant coating is obtained by modifying nano boron nitride with epoxypropyltrimethoxysilane.

2. The wear-resistant and toughened electronic cigarette oil guide rope according to claim 1, characterized in that: The method comprises the following preparation steps: (1) adding hydroquinone, octadecenedioic acid, and 60% sulfuric acid to anhydrous ethanol, stirring at 85-95° C. and 50-80 r / m for 8-10 hours, cooling to room temperature, adding 20% ​​sodium carbonate solution to a pH of 7-8, standing for 30-60 minutes, separating the liquids, taking the ester liquid, washing with deionized water for 4-6 times, separating the liquids, taking the ester liquid, removing excess deionized water with anhydrous sodium sulfate, filtering, taking the ester liquid, and obtaining polyester; (2) adding polyester, 3-amino-4-mercaptobenzoic acid and benzophenone to anhydrous ethanol, stirring for 3 to 6 hours at room temperature, 400 to 800 r / m, and irradiating with ultraviolet light at 350 to 380 nm under nitrogen atmosphere, stopping the reaction, evaporating the solvent, and pelletizing the material to obtain a modified polyester material; (3) melt-extruding the modified polyester material under a nitrogen atmosphere to obtain modified polyester fibers; (4) adding nano boron nitride to a 30% sulfuric acid solution, stirring at 60-70° C. and 200-500 r / m for 2-3 h, filtering, washing the filtrate with deionized water for 4-6 times, and drying in a vacuum drying oven at 50-60° C. for 2-4 h to obtain pretreated nano boron nitride; (5) adding the pretreated nano boron nitride and epoxypropyl trimethoxysilane into anhydrous ethanol, stirring and mixing to form a boron nitride mortar; (6) Spraying boron nitride mortar on the surface of the modified polyester fiber, curing the fiber, and then winding the fiber into an oil guide rope.

3. The wear-resistant and toughened electronic cigarette oil guide rope according to claim 2, characterized in that: In step (1) of the preparation method, by weight, 60 to 80 parts of hydroquinone, 50 to 70 parts of octadecenedioic acid, 1 to 5 parts of 60% sulfuric acid, and 80 to 100 parts of anhydrous ethanol are used.

4. The wear-resistant and toughened electronic cigarette oil guide rope according to claim 2, characterized in that: In step (2) of the preparation method, the polyester is 60-80 parts, the 3-amino-4-mercaptobenzoic acid is 40-60 parts, the benzophenone is 2-6 parts, and the anhydrous ethanol is 80-100 parts in parts by weight.

5. The wear-resistant and toughened electronic cigarette oil guide rope according to claim 2, characterized in that: In step (3) of the preparation method, the melt extrusion temperature is 250-260° C., the extrusion voltage is 30-40 kV, and the nozzle aperture is 0.2-0.8 mm.

6. The wear-resistant and toughened electronic cigarette oil guide rope according to claim 2, characterized in that: In step (4) of the preparation method, by weight, 30 to 50 parts of nano boron nitride and 50 to 60 parts of 30% sulfuric acid solution are used.

7. The wear-resistant and toughened electronic cigarette oil guide rope according to claim 2, characterized in that: In step (5) of the preparation method, the pretreated nano boron nitride is 30 to 40 parts, epoxypropyl trimethoxysilane is 50 to 70 parts, and anhydrous ethanol is 80 to 100 parts by weight.

8. The wear-resistant and toughened electronic cigarette oil guide rope according to claim 2, characterized in that: In step (5) of the preparation method, the boron nitride epoxidation reaction temperature is 60-90° C., the stirring speed is 200-500 r / m, and the stirring time is 30-40 min.

9. The wear-resistant and toughened electronic cigarette oil guide rope according to claim 2, characterized in that: The spraying in step (6) of the preparation method uses a spray gun with an air pressure of 0.2 to 0.5 MPa, a spraying distance of 10 to 20 cm, and the spraying is repeated 3 to 5 times.

10. The wear-resistant and toughened electronic cigarette oil guide rope according to claim 2, characterized in that: In step (6) of the preparation method, the curing treatment temperature is 70 to 90° C., and the curing time is 2 to 4 hours.

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