Fluorine oil gel as well as preparation method and application thereof

Abstract

The invention provides fluorine oil gel which comprises a fluorine oil gel precursor, and the fluorine oil gel precursor is prepared from the following components in parts by mass: 10 parts of dihydroxyl perfluoropolyether, 1.4 to 1.615 parts of (2, 4, 6-trioxotriazine-1, 3, 5 (2H, 4H, 6H)-triyl) tri (hexamethylene) isocyanate, 5 parts of trichlorotrifluoroethane and 11.1 to 25 parts of dichloromethane; the swelling solution comprises the following components in parts by mass: 5-10 parts of an ionic conductor and 100 parts of dihydroxy perfluoropolyether. According to the fluorine oil gel, the swelling solution with hydrophobicity and ionic conductivity is introduced, so that the fluorine oil gel can keep hydrophobicity and has good ionic conductivity, and meanwhile, the swelling solution is obtained by blending perfluoropolyether and an ionic conductor, so that the swelled fluorine oil gel also has ionic conductivity; the fluorine oil gel does not have magnetism, so that the fluorine oil gel can be placed in a strong magnetic environment of MRI for a long time, pulse signals of a human body are stably monitored, and in addition, the fluorine oil gel also has excellent hydrophobicity, solvent resistance and flame retardance.

Description

Technical Field

[0001] The present invention relates to the technical field of gel materials, and in particular to a fluoro oil gel and a preparation method and application thereof. Background Art

[0002] With the increasing integration and miniaturization of modern technological products and the increasing demand for higher magnetic field strength, the development and design of conductive materials and electronic devices capable of functioning in strong magnetic environments are becoming increasingly important. For example, in the medical field, MRI (magnetic resonance imaging) technology plays a vital role in medical diagnosis, providing crucial information for clinical treatment decisions. However, existing MRI technology is difficult to operate with metal-containing equipment and cannot be combined with other metal-containing instrument detection technologies. Furthermore, the difficulty in monitoring physiological signals (such as respiration and heart rate) makes MRI examinations difficult for some patients with limited mobility and unconsciousness (infants, critically ill patients), often missing critical treatment opportunities. Current sensing devices require conductive materials to monitor human pulse signals, but most existing conductive materials lack strong magnetic compatibility and cannot remain stable in strong magnetic environments, making them unsuitable for sensing and monitoring signals in strong magnetic fields. Summary of the Invention

[0003] In response to the deficiencies in the prior art, the present application provides a fluoro oil gel and a preparation method and application thereof.

[0004] A fluoro oil gel disclosed in the present application includes: a fluoro oil gel precursor includes the following components in parts by mass: 10 parts of bishydroxy perfluoropolyether, 1.4-1.615 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene) isocyanate, 11.1-25 parts of trichlorotrifluoroethane, and 5 parts of dichloromethane; a swelling solution includes the following components in parts by mass: 5-10 parts of an ion conductor and 100 parts of bishydroxy perfluoropolyether.

[0005] Preferably, the mass ratio of bishydroxy perfluoropolyether to (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate is 1:0.165.

[0006] Preferably, the mass ratio of trifluorotrichloroethane to dichloromethane is 5:1.

[0007] Preferably, the fluoropolymer precursor further comprises 0 to 1 part of a polyurethane catalyst.

[0008] Preferably, the polyurethane catalyst is an organometallic tin catalyst, an organometallic lead catalyst or an amine catalyst.

[0009] Preferably, the ion conductor is 1-ethyl-3-methylimidazolium tetrafluoroborate, 1-butyl-3-methylimidazolium tetrafluoroborate, 1-hexyl-3-methylimidazolium tetrafluoroborate, 1-octyl-3-methylimidazolium tetrafluoroborate, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-octyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-octyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-hexyl-3-methylimidazolium chloride, lithium bis(trifluoromethylsulfonyl)imide or bis(trifluoromethylsulfonyl)imide salt.

[0010] The present application also discloses a method for preparing a fluoro oil gel, comprising the following steps: adding 10 parts of bishydroxy perfluoropolyether, 1.4 to 1.615 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate and 11.1 to 25 parts of dichloromethane into 5 parts of trichlorotrifluoroethane and fully dissolving them to obtain a prepolymer solution; Mixing 5 to 10 parts of an ion conductor and 100 parts of a bishydroxy perfluoropolyether to obtain a swelling solution; The prepolymer solution is added into the mold and polymerized for 1-6 hours, and then allowed to volatilize and stand for 4-8 hours to obtain a fluoro oil gel precursor; Soaking the fluoropolymer precursor in the swelling solution for 0.5 to 72 hours and heating it; Obtain fluorinated oil gel.

[0011] The present application also discloses an application of fluoro oil gel in flexible ion conductive materials.

[0012] The present application also discloses an application of fluoro oil gel in hydrophobic, flame retardant and solvent resistant materials.

[0013] The present application also discloses an application of fluorooil gel in the fields of flexible wearable sensing devices, soft robots, human-computer interaction or medical health monitoring.

[0014] The beneficial effect of the present application is that the fluoro oil gel in the present application can have good ionic conductivity while maintaining hydrophobicity by introducing a swelling solution that has both hydrophobicity and ionic conductivity. At the same time, because the swelling solution is obtained by blending perfluoropolyether with an ionic conductor, the swollen fluoro oil gel also has ionic conductivity, that is, the fluoro oil gel has conductivity. Moreover, because the fluoro oil gel is not magnetic, its conductivity depends entirely on the conductivity of the ionic conductor, and it has strong anti-interference ability in a strong magnetic environment. By attaching the fluoro oil gel to the human carotid artery and connecting the circuit with a carbon fiber wire, the human pulse signal can be monitored in the strong magnetic environment of MRI. That is, the fluoro oil gel can be placed in the strong magnetic environment of MRI for a long time and can stably monitor the human pulse signal. In addition, fluorooil gel also has excellent hydrophobicity, solvent resistance and flame retardant properties. It can be placed in high humidity environments or underwater environments for a long time and effectively prevent moisture penetration, extend the service life of the material, and expand underwater application scenarios. It can resist the erosion, swelling and dissolution of strong acid solutions, strong alkali solutions, high concentration salt solutions, polar and non-polar organic solvents. It can adapt to complex solvent environments to meet the material use requirements of specific industries. It can effectively terminate the combustion reaction chain and prevent heat transfer, thereby inhibiting the combustion reaction, and has important application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 Schematic diagram of the preparation process of fluoro oil gel; Figure 2 The figure shows the actual process of preparing fluorooleogel, including the fluorooleogel precursor and the fluorooleogel after being immersed in the swelling solution for 3h, 6h, and 9h. Figure 3 The figure shows the synthesis of fluoropolymer precursors with different raw material ratios, where the f value refers to the functionality in the raw material reaction system; Figure 4 The figure is a comparison of the elongation at break and Young's modulus of fluoro oil gel with different raw material ratios; Figure 5 The conductivity change curve of the swelling solution containing different concentrations of ion conductors; Figure 6 The swelling rate change curve of the fluoro oil gel precursor at 60°C as a function of time and the swelling rate change rate curve; Figure 7 The hydrophobic performance test diagram of fluoro oil gel, traditional hydrogel and ethylene glycol hydrogel; Figure 8This is a physical picture of the hydrophobicity test of fluoro oil gel, hydrogel, and ethylene glycol gel; Figure 9 The mass change of the fluoro oil gel's solvent resistance test; Figure 10 This is a physical picture of the morphological change results of the fluoro oil gel solvent resistance test; Figure 11 This is a real picture of the flame retardant effect of fluorinated oil gel; Figure 12 This is a signal diagram of fluorooil gel successfully monitoring human pulse signals in the strong magnetic environment of MRI. DETAILED DESCRIPTION

[0016] The following diagrams illustrate various embodiments of the present application. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present application. In other words, in some embodiments of the present application, these practical details are not essential. Furthermore, to simplify the drawings, some conventional structures and components are depicted in a simplified schematic manner.

[0017] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0018] In addition, in this application, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or ranking, nor are they used to limit this application. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0019] In order to further understand the application content, features and effects of this application, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0020] Example 1: The fluoropolymer in this embodiment is obtained by swelling a fluoropolymer precursor in a swelling solution. The fluoropolymer precursor comprises the following components in parts by mass: 10 parts of bishydroxy perfluoropolyether (PFPE-diol), 1.4 to 1.615 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate (THDI), 11.1 to 25 parts of trichlorotrifluoroethane (CFC-113), and 5 parts of dichloromethane (CH2Cl2); the swelling solution comprises the following components in parts by mass: 5 to 10 parts of an ion conductor and 100 parts of bishydroxy perfluoropolyether.

[0021] Specifically, dihydroxy perfluoropolyether, dichloromethane, and (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl) tris(hexamethylene) isocyanate are fully dissolved in trifluorotrichloroethane to obtain a prepolymer solution. The prepolymer solution is allowed to stand for polymerization, and dichloromethane and trifluorotrichloroethane are volatilized to obtain a fluoro oil gel precursor. The fluoro oil gel precursor is immersed in a swelling solution, and the fluoro oil gel can be obtained after solvent replacement. The fluoro oil gel in this embodiment introduces a swelling solution that has both hydrophobicity and ion conductivity, so that the fluoro oil gel can have good ion conductivity while maintaining hydrophobicity. At the same time, since the swelling solution is obtained by blending perfluoropolyether and an ion conductor, the swollen fluoro oil gel also has ion conductivity, that is, the fluoro oil gel has conductivity. Moreover, since fluoro oil gel is non-magnetic, its conductivity relies entirely on the conductivity of ionic conductors, and it has strong anti-interference capabilities in strong magnetic environments. By attaching the fluoro oil gel to the human carotid artery and connecting the circuit using carbon fiber wires, the human pulse signal can be monitored in the strong magnetic environment of MRI. In other words, the fluoro oil gel can be placed in the strong magnetic environment of MRI for a long time and can stably monitor the human pulse signal. In addition, fluoro oil gel also has excellent hydrophobicity, solvent resistance and flame retardant properties. It can be placed in high humidity environments or underwater environments for a long time and effectively prevent moisture penetration, extending the service life of the material and expanding underwater application scenarios. It can resist the erosion, swelling and dissolution of strong acid solutions, strong alkali solutions, high-concentration salt solutions, polar and non-polar organic solvents, and can adapt to complex solvent environments to meet the material use requirements of specific industries. It can effectively terminate the combustion reaction chain and prevent heat transfer, thereby inhibiting the combustion reaction, and has important application value.

[0022] Preferably, the fluoropolymer precursor further comprises 0-1 part of a polyurethane catalyst. The polyurethane catalyst can accelerate the polymerization reaction rate of the prepolymer solution, saving polymerization reaction time. The polyurethane catalyst can be an organometallic tin catalyst, an organometallic lead catalyst, or an amine catalyst. The polyurethane catalyst is added directly to the prepolymer solution during use.

[0023] Preferably, the mass ratio of bishydroxy perfluoropolyether to (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate is 1:0.165. The mass ratio of trifluorotrichloroethane to dichloromethane is 5:1. The resulting fluoropolymer gel exhibits optimal mechanical properties, including elongation at break and Young's modulus, at this ratio.

[0024] Preferably, the ion conductor is selected from 1-ethyl-3-methylimidazolium tetrafluoroborate, 1-butyl-3-methylimidazolium tetrafluoroborate, 1-hexyl-3-methylimidazolium tetrafluoroborate, 1-octyl-3-methylimidazolium tetrafluoroborate, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-octyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-octyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-hexyl-3-methylimidazolium chloride, lithium bis(trifluoromethylsulfonyl)imide or bis(trifluoromethylsulfonyl)imide salt.

[0025] Example 2: The preparation method of the fluoropolymer in this embodiment comprises the following steps: S1: Obtain a prepolymer solution: Add 10 parts of bishydroxy perfluoropolyether, 1.4-1.615 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate, 5 parts of dichloromethane, and a polyurethane catalyst to 11.1-25 parts of trichlorotrifluoroethane and fully dissolve. In specific applications, only a small amount of the polyurethane catalyst is required; in this embodiment, 0.06 parts is sufficient.

[0026] S2: Obtaining a swelling solution: Mix 5-10 parts of the ion conductor and 100 parts of the bis(hydroxy)perfluoropolyether and heat at 60° C. for 30 min to promote mutual dissolution. In specific applications, the ion conductor is selected from 1-ethyl-3-methylimidazolium tetrafluoroborate, 1-butyl-3-methylimidazolium tetrafluoroborate, 1-hexyl-3-methylimidazolium tetrafluoroborate, 1-octyl-3-methylimidazolium tetrafluoroborate, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-octyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-octyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-hexyl-3-methylimidazolium chloride, lithium bis(trifluoromethylsulfonyl)imide or bis(trifluoromethylsulfonyl)imide salt.

[0027] S3: Obtaining a fluoropolymer precursor: The prepolymer solution is added to a mold and polymerized for 1-6 hours, followed by evaporation and stabilization for 4-8 hours. In specific applications, the prepolymer solution can be added to the mold and then allowed to sinter and polymerize to form a fluoropolymer precursor of a desired shape. The fluoropolymer precursor is then allowed to sinter and volatilize for 4-8 hours. During this evaporation process, the remaining solvent in the prepolymer solution, i.e., the dichloromethane and trichlorotrifluoroethane, is evaporated. Preferably, the polymerization time is 4 hours.

[0028] S4: Soaking the fluoropolymer precursor in the swelling solution for 0.5 to 72 hours and heating at 60°C. Preferably, the swelling time is 3 hours. In specific applications, the fluoropolymer precursor is soaked in the swelling solution and swelled under heating conditions.

[0029] S5: Obtain fluorinated oil gel.

[0030] Example 1: The fluorinated oil gel in this embodiment was prepared by the following method: S1: Obtain a prepolymer solution: add 10 parts of bishydroxy perfluoropolyether, 1.4 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate, 5 parts of dichloromethane and 0.06 parts of polyurethane catalyst into 11.1 parts of trichlorotrifluoroethane and fully dissolve them.

[0031] S2: Obtaining a swelling solution: 5 parts of an ion conductor and 100 parts of bishydroxy perfluoropolyether were mixed and heated at 60° C. for 30 minutes.

[0032] S3: Obtaining a fluorooil gel precursor: adding the prepolymerized solution into a mold and polymerizing for 4 hours to form the product, and then allowing the product to evaporate and stand for 4 to 8 hours until the trichlorotrifluoroethane and dichloromethane are evaporated.

[0033] S4: Soak the fluorooil gel precursor in the swelling solution for 3 hours and heat it at 60°C.

[0034] S5: Obtain fluorinated oil gel.

[0035] Example 2: The fluorinated oil gel in this embodiment was prepared by the following method: S1: Obtain a prepolymer solution: add 10 parts of bishydroxy perfluoropolyether, 1.4 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate, 5 parts of dichloromethane and 0.06 parts of polyurethane catalyst into 16.5 parts of trichlorotrifluoroethane and fully dissolve.

[0036] S2: Obtaining a swelling solution: 5 parts of an ion conductor and 100 parts of a bishydroxy perfluoropolyether were mixed and heated at 60° C. for 30 min.

[0037] S3: Obtaining a fluorooil gel precursor: adding the prepolymerized solution into a mold and polymerizing for 4 hours to form the product, and then allowing the product to evaporate and stand for 4 to 8 hours until the trichlorotrifluoroethane and dichloromethane are evaporated.

[0038] S4: Soak the fluorooil gel precursor in the swelling solution for 3 hours and heat it at 60°C.

[0039] S5: Obtain fluorinated oil gel.

[0040] Example 3: The fluorinated oil gel in this embodiment was prepared by the following method: S1: Obtain a prepolymer solution: add 10 parts of bishydroxy perfluoropolyether, 1.4 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate, 5 parts of dichloromethane and 0.06 parts of polyurethane catalyst into 20 parts of trichlorotrifluoroethane and fully dissolve.

[0041] S2: Obtaining a swelling solution: 5 parts of an ion conductor and 100 parts of a bishydroxy perfluoropolyether were mixed and heated at 60° C. for 30 min.

[0042] S3: Obtaining a fluorooil gel precursor: adding the prepolymerized solution into a mold and polymerizing for 4 hours to form the product, and then allowing the product to evaporate and stand for 4 to 8 hours until the trichlorotrifluoroethane and dichloromethane are evaporated.

[0043] S4: Soak the fluorooil gel precursor in the swelling solution for 3 hours and heat it at 60°C.

[0044] S5: Obtain fluorinated oil gel.

[0045] Example 4: The fluorinated oil gel in this embodiment was prepared by the following method: S1: Obtain a prepolymer solution: add 10 parts of bishydroxy perfluoropolyether, 1.4 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate, 5 parts of dichloromethane and 0.06 parts of polyurethane catalyst into 25 parts of trichlorotrifluoroethane and fully dissolve them.

[0046] S2: Obtaining a swelling solution: 5 parts of an ion conductor and 100 parts of a bishydroxy perfluoropolyether were mixed and heated at 60° C. for 30 min.

[0047] S3: Obtaining a fluorooil gel precursor: adding the prepolymerized solution into a mold and polymerizing for 4 hours to form the product, and then allowing the product to evaporate and stand for 4 to 8 hours until the trichlorotrifluoroethane and dichloromethane are evaporated.

[0048] S4: Soak the fluorooil gel precursor in the swelling solution for 3 hours and heat it at 60°C.

[0049] S5: Obtain fluorinated oil gel.

[0050] Example 5: The fluorinated oil gel in this embodiment was prepared by the following method: S1: Obtain a prepolymer solution: add 10 parts of bishydroxy perfluoropolyether, 1.5 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate, 5 parts of dichloromethane and 0.06 parts of polyurethane catalyst into 11.1 parts of trichlorotrifluoroethane and fully dissolve them.

[0051] S2: Obtaining a swelling solution: 5 parts of an ion conductor and 100 parts of a bishydroxy perfluoropolyether were mixed and heated at 60° C. for 30 min.

[0052] S3: Obtaining a fluorooil gel precursor: adding the prepolymerized solution into a mold and polymerizing for 4 hours to form the product, and then allowing the product to evaporate and stand for 4 to 8 hours until the trichlorotrifluoroethane and dichloromethane are evaporated.

[0053] S4: Soak the fluorooil gel precursor in the swelling solution for 3 hours and heat it at 60°C.

[0054] S5: Obtain fluorinated oil gel.

[0055] Example 6: The fluorinated oil gel in this embodiment was prepared by the following method: S1: Obtain a prepolymer solution: add 10 parts of bishydroxy perfluoropolyether, 1.5 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate, 5 parts of dichloromethane and 0.06 parts of polyurethane catalyst into 16.5 parts of trichlorotrifluoroethane and fully dissolve them.

[0056] S2: Obtaining a swelling solution: 5 parts of an ion conductor and 100 parts of a bishydroxy perfluoropolyether were mixed and heated at 60° C. for 30 min.

[0057] S3: Obtaining a fluorooil gel precursor: adding the prepolymerized solution into a mold and polymerizing for 4 hours to form the product, and then allowing the product to evaporate and stand for 4 to 8 hours until the trichlorotrifluoroethane and dichloromethane are evaporated.

[0058] S4: Soak the fluorooil gel precursor in the swelling solution for 3 hours and heat it at 60°C.

[0059] S5: Obtain fluorinated oil gel.

[0060] Example 7: The fluorinated oil gel in this embodiment was prepared by the following method: S1: Obtain a prepolymer solution: add 10 parts of bishydroxy perfluoropolyether, 1.5 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate, 5 parts of dichloromethane and 0.06 parts of polyurethane catalyst into 20 parts of trichlorotrifluoroethane and fully dissolve.

[0061] S2: Obtaining a swelling solution: 5 parts of an ion conductor and 100 parts of a bishydroxy perfluoropolyether were mixed and heated at 60° C. for 30 min.

[0062] S3: Obtaining a fluorooil gel precursor: adding the prepolymerized solution into a mold and polymerizing for 4 hours to form the product, and then allowing the product to evaporate and stand for 4 to 8 hours until the trichlorotrifluoroethane and dichloromethane are evaporated.

[0063] S4: Soak the fluorooil gel precursor in the swelling solution for 3 hours and heat it at 60°C.

[0064] S5: Obtain fluorinated oil gel.

[0065] Example 8: The fluorinated oil gel in this embodiment was prepared by the following method: S1: Obtain a prepolymer solution: add 10 parts of bishydroxy perfluoropolyether, 1.5 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate, 5 parts of dichloromethane and 0.06 parts of polyurethane catalyst into 25 parts of trichlorotrifluoroethane and fully dissolve them.

[0066] S2: Obtaining a swelling solution: 5 parts of an ion conductor and 100 parts of a bishydroxy perfluoropolyether were mixed and heated at 60° C. for 30 min.

[0067] S3: Obtaining a fluorooil gel precursor: adding the prepolymerized solution into a mold and polymerizing for 4 hours to form the product, and then allowing the product to evaporate and stand for 4 to 8 hours until the trichlorotrifluoroethane and dichloromethane are evaporated.

[0068] S4: Soak the fluorooil gel precursor in the swelling solution for 3 hours and heat it at 60°C.

[0069] S5: Obtain fluorinated oil gel.

[0070] Example 9: The fluorinated oil gel in this embodiment was prepared by the following method: S1: Obtain a prepolymer solution: add 10 parts of bishydroxy perfluoropolyether, 1.615 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate, 5 parts of dichloromethane and 0.06 parts of polyurethane catalyst into 11.1 parts of trichlorotrifluoroethane and fully dissolve them.

[0071] S2: Obtaining a swelling solution: 5 parts of an ion conductor and 100 parts of a bishydroxy perfluoropolyether were mixed and heated at 60° C. for 30 min.

[0072] S3: Obtaining a fluorooil gel precursor: adding the prepolymerized solution into a mold and polymerizing for 4 hours to form the product, and then allowing the product to evaporate and stand for 4 to 8 hours until the trichlorotrifluoroethane and dichloromethane are evaporated.

[0073] S4: Soak the fluorooil gel precursor in the swelling solution for 3 hours and heat it at 60°C.

[0074] S5: Obtain fluorinated oil gel.

[0075] Example 10: The fluorinated oil gel in this embodiment was prepared by the following method: S1: Obtain a prepolymer solution: add 10 parts of bishydroxy perfluoropolyether, 1.615 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate, 5 parts of dichloromethane and 0.06 parts of polyurethane catalyst into 16.5 parts of trichlorotrifluoroethane and fully dissolve.

[0076] S2: Obtaining a swelling solution: 5 parts of an ion conductor and 100 parts of a bishydroxy perfluoropolyether were mixed and heated at 60° C. for 30 min.

[0077] S3: Obtaining a fluorooil gel precursor: adding the prepolymerized solution into a mold and polymerizing for 4 hours to form the product, and then allowing the product to evaporate and stand for 4 to 8 hours until the trichlorotrifluoroethane and dichloromethane are evaporated.

[0078] S4: Soak the fluorooil gel precursor in the swelling solution for 3 hours and heat it at 60°C.

[0079] S5: Obtain fluorinated oil gel.

[0080] Example 11: The fluorinated oil gel in this embodiment was prepared by the following method: S1: Obtain a prepolymer solution: add 10 parts of bishydroxy perfluoropolyether, 1.615 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate, 5 parts of dichloromethane and 0.06 parts of polyurethane catalyst into 20 parts of trichlorotrifluoroethane and fully dissolve.

[0081] S2: Obtaining a swelling solution: 5 parts of an ion conductor and 100 parts of a bishydroxy perfluoropolyether were mixed and heated at 60° C. for 30 min.

[0082] S3: Obtaining a fluorooil gel precursor: adding the prepolymerized solution into a mold and polymerizing for 4 hours to form the product, and then allowing the product to evaporate and stand for 4 to 8 hours until the trichlorotrifluoroethane and dichloromethane are evaporated.

[0083] S4: Soak the fluorooil gel precursor in the swelling solution for 3 hours and heat it at 60°C.

[0084] S5: Obtain fluorinated oil gel.

[0085] Example 12: The fluorinated oil gel in this embodiment was prepared by the following method: S1: Obtain a prepolymer solution: add 10 parts of bishydroxy perfluoropolyether, 1.615 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate, 5 parts of dichloromethane and 0.06 parts of polyurethane catalyst into 25 parts of trichlorotrifluoroethane and fully dissolve.

[0086] S2: Obtaining a swelling solution: 5 parts of an ion conductor and 100 parts of a bishydroxy perfluoropolyether were mixed and heated at 60° C. for 30 min.

[0087] S3: Obtaining a fluorooil gel precursor: adding the prepolymerized solution into a mold and polymerizing for 4 hours to form the product, and then allowing the product to evaporate and stand for 4 to 8 hours until the trichlorotrifluoroethane and dichloromethane are evaporated.

[0088] S4: Soak the fluorooil gel precursor in the swelling solution for 3 hours and heat it at 60°C.

[0089] S5: Obtain fluorinated oil gel.

[0090] The properties of the fluoro oil gels obtained in Examples 1 to 12 were tested, specifically including elongation at break and Young's modulus tests. The examples with the best mechanical properties were selected and subjected to hydrophobicity tests, solvent resistance tests, flame retardancy tests, and sensing performance tests under a strong magnetic environment. The hydrophobicity test was conducted by placing the ethylene glycol gel, hydrogel, and fluoro oil gel in a dry environment for 72 hours, a humid environment for 72 hours, and an underwater environment for 72 hours, and detecting their residual mass in real time. The solvent resistance test was conducted by immersing the fluoro oil gel in concentrated salt solution, strong acid solution, strong alkali solution, petroleum ether, cyclohexane, toluene, acetonitrile, dichloromethane, N, The mass change after 24 hours in N-dimethylformamide was observed. The flame retardancy test used a 10mm*10mm*1mm fluorinated oil gel placed on a wooden board and a butane torch to test the material's flame retardancy. The sensing performance test in a strong magnetic environment involved attaching the fluorinated oil gel to the human carotid artery, connecting the circuit with a carbon fiber wire, and monitoring the human pulse signal in the strong magnetic environment of an MRI. The test results are shown in the table below:

[0091] Table 1 Test values ​​of elongation at break and Young's modulus

[0092] Table 2 Hydrophobicity test quality change value table

[0093] Table 3 Quality change of solvent resistance test 1. Elongation at break and Young's modulus test: refer to Figure 3 、 Figure 4 As can be seen from Table 1, except for Example 4, the fluoropolymer in Example 4 failed to form, the fluoropolymers in the remaining examples all had high elongation at break and strong mechanical properties, where the f value is the functionality in the raw material reaction system. According to the data in Table 1, the larger the f value, the more cross-linking points, and the greater the strength of the prepared fluoropolymer, that is, the greater the modulus. Under the same f value, the greater the CFC-113 content, the higher the elongation at break, that is, when the mass ratio of bishydroxy perfluoropolyether to (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate is 1:0.165 and the CFC-113 content is 60%, the elongation at break and the modulus are both at the optimal level, that is, the fluoropolymer in Example 12. Example 12 with the best mechanical properties was used for subsequent hydrophobicity tests, solvent resistance tests, flame retardancy tests, and sensing performance tests under a strong magnetic environment.

[0094] 2. Hydrophobic performance test: refer to Figure 7 、 Figure 8 As shown in Table 2, the fluorinated oil gel in Example 12, the conventional ethylene glycol gel, and the hydrogel were placed in a dry environment for 72 hours, a humid environment for 72 hours, and an underwater environment for 72 hours, and their residual masses were detected in real time. Figure 7 、 Figure 8As shown in Table 2, the actual mass and morphology of the fluoropolymer gel do not change significantly in dry, humid, or underwater environments, indicating that the fluoropolymer gel has good hydrophobic properties. Furthermore, by comparing the mass and morphology changes of the more common hydrogels and ethylene glycol gels in dry, humid, and underwater environments, it is clear that the mass and morphology of traditional hydrogels are significantly affected in dry, humid, and underwater environments. Organic gels such as ethylene glycol gels can remain stable in dry environments, but their mass and morphology are less stable in humid environments, especially underwater environments. This shows that the fluoropolymer gel has excellent hydrophobicity and does not change after long-term storage in dry, high-humidity, or underwater environments. It can effectively prevent moisture penetration, extend the service life of the material, and expand dry and underwater application scenarios.

[0095] 3. Solvent resistance test: refer to Figure 9 、 Figure 10 As shown in Table 3, after immersing the fluoropolymer in Example 12 in concentrated salt solution, strong acid solution, strong base solution, petroleum ether, cyclohexane, toluene, acetonitrile, dichloromethane, and N,N-dimethylformamide for 24 hours, the quality of the fluoropolymer remained essentially unchanged. The fluoropolymer still maintained its original appearance and structure, exhibiting good solvent resistance without erosion, swelling, or dissolution. This indicates that the fluoropolymer can adapt to complex solvent environments and meet the material usage requirements of specific industries.

[0096] 4. Flame retardant performance test: refer to Figure 11 It can be seen that when the fluorooil gel in Example 12 is placed on a wooden board and continuously flame-sprayed with a butane lighter, the wooden board around the gel has been ignited by the flame and carbonized and turned black, while the part covered with the fluorooil gel has no obvious carbonization phenomenon, showing excellent flame retardant properties, which can effectively terminate the combustion reaction chain and prevent heat transfer, thereby inhibiting the combustion reaction, and has important application value.

[0097] 5. Sensing performance test under strong magnetic environment: refer to Figure 12 It can be seen that when the fluorooil gel in Example 12 is attached to the human carotid artery, the circuit is connected using a fiber conductor, and it is placed in the strong magnetic environment of MRI for a long time, the human pulse signal can still be stably monitored. Therefore, the fluorooil gel in this application can be used in flexible wearable sensing devices, soft robots, human-computer interaction, or medical health monitoring.

[0098] In summary, the fluoropolymer gel in this embodiment achieves good ionic conductivity while maintaining its hydrophobicity by introducing a swelling solution that exhibits both hydrophobicity and ionic conductivity. Furthermore, because the swelling solution is obtained by blending perfluoropolyether with an ionic conductor, the swollen fluoropolymer gel also possesses ionic conductivity, making it electrically conductive. Furthermore, since the fluoropolymer gel is non-magnetic, its conductivity relies entirely on the conductivity of the ionic conductor, resulting in strong anti-interference capabilities in strong magnetic environments. By attaching the fluoropolymer gel to the human carotid artery and connecting the circuit using carbon fiber wires, the human pulse signal can be monitored in the strong magnetic environment of an MRI. This means that the fluoropolymer gel can be placed in the strong magnetic environment of an MRI for extended periods of time, allowing for stable monitoring of the human pulse signal. In addition, fluorooil gel also has excellent hydrophobicity, solvent resistance and flame retardant properties. It can be placed in high humidity environments or underwater environments for a long time and effectively prevent moisture penetration, extend the service life of the material, and expand underwater application scenarios. It can resist the erosion, swelling and dissolution of strong acid solutions, strong alkali solutions, high concentration salt solutions, polar and non-polar organic solvents. It can adapt to complex solvent environments to meet the material use requirements of specific industries. It can effectively terminate the combustion reaction chain and prevent heat transfer, thereby inhibiting the combustion reaction, and has important application value.

[0099] The above is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included within the scope of the claims of the present application.

Claims

1. A fluorinated oil gel, characterized in that: The invention is obtained by swelling a fluoropolymer precursor in a swelling solution, wherein the fluoropolymer precursor comprises the following components in parts by mass: 10 parts of bishydroxy perfluoropolyether, 1.4 to 1.615 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate, 11.1 to 25 parts of trichlorotrifluoroethane, and 5 parts of dichloromethane; and the swelling solution comprises the following components in parts by mass: 5 to 10 parts of an ion conductor and 100 parts of bishydroxy perfluoropolyether.

2. The fluorochemical gel according to claim 1, wherein The mass ratio of bishydroxy perfluoropolyether to (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate is 1:0.

165.

3. The fluoropolymer according to claim 1, wherein The mass ratio of trichlorotrifluoroethane to dichloromethane is 5:

1.

4. The fluorooil gel according to claim 1, characterized in that The fluoro oil gel precursor further comprises 0-1 part of a polyurethane catalyst.

5. The fluorooil gel according to claim 4, characterized in that The polyurethane catalyst is an organic metal tin catalyst, an organic metal lead catalyst or an amine catalyst.

6. The fluorooil gel according to claim 1, characterized in that The ion conductor is 1-ethyl-3-methylimidazolium tetrafluoroborate, 1-butyl-3-methylimidazolium tetrafluoroborate, 1-hexyl-3-methylimidazolium tetrafluoroborate, 1-octyl-3-methylimidazolium tetrafluoroborate, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-octyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-octyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-hexyl-3-methylimidazolium chloride, lithium bis(trifluoromethylsulfonyl)imide or bis(trifluoromethylsulfonyl)imide salt.

7. A method for preparing the fluoro oil gel according to any one of claims 1 to 6, characterized in that: The following steps are involved: To 5 parts of trichlorotrifluoroethane, 10 parts of bishydroxy perfluoropolyether, 1.4-1.615 parts of (2,4,6-trioxotriazine-1,3,5(2H,4H,6H)-triyl)tris(hexamethylene)isocyanate and 11.1-25 parts of dichloromethane were added and fully dissolved to obtain a prepolymer solution; Mixing 5 to 10 parts of an ion conductor and 100 parts of a bishydroxy perfluoropolyether to obtain a swelling solution; The prepolymer solution is added into the mold and polymerized for 1 to 6 hours, volatilized and allowed to stand for 4 to 8 hours to obtain a fluoro oil gel precursor; soaking the fluoropolymer precursor in the swelling solution for 0.5 to 72 hours and heating the solution; Fluorine oil gel is obtained.

8. Use of the fluoro oil gel according to any one of claims 1 to 6 in flexible ion conductive materials.

9. Use of the fluoro oil gel according to any one of claims 1 to 6 in hydrophobic, flame retardant and solvent resistant materials.

10. Use of the fluoropolymer gel according to any one of claims 1 to 6 in the fields of flexible wearable sensing devices, soft robots, human-computer interaction, or medical health monitoring.

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