Functional polyurethane rubber material and preparation method thereof

Abstract

The invention relates to the technical field of polyurethane rubber materials, and discloses a functional polyurethane rubber material and a preparation method thereof, the polyurethane rubber material is composed of a component A and a component B, the component A comprises the following raw materials: a functional additive and a diisocyanate monomer; the component B is prepared from the following raw materials: a tackifying modified component, 1, 3-propylene glycol, talcum powder, an anti-aging agent, dioctyl phthalate, pigment, a flame retardant, stannous octoate and zinc stearate; wherein the structure of the functional additive contains a large number of silicon-oxygen bonds, fluorine elements and tert-butyl structures; the tackifying and modifying component is a grafted compound of petroleum resin and glycidyl furfuryl ether, and all the raw materials are matched with one another, so that the prepared polyurethane rubber material has good corrosion resistance, waterproof performance and adhesive force and can meet the use requirements in various environments.

Description

Technical Field

[0001] The invention relates to the technical field of polyurethane rubber materials, and in particular to a functional polyurethane rubber material and a preparation method thereof. Background Art

[0002] Expansion joints refer to gaps that are pre-set to avoid cracks or damage in certain parts of buildings or structures due to temperature changes, thermal expansion and contraction of materials, etc. They are usually located between the walls, floor slabs, roofs and other components of buildings, as well as in appropriate parts of structures such as bridges and tunnels. Methods for waterproofing and sealing expansion joints include using polyurethane rubber materials, asphalt materials, silicone sealants and waterstops for treatment. Among them, polyurethane rubber material is a synthetic rubber material with excellent performance formed by the reaction of oligomer polyols and polyisocyanates under certain conditions. It has the advantages of high elasticity, wear resistance, low temperature resistance, fatigue resistance, and good tensile properties.

[0003] With the development of modern industry, especially the continuous development and application of various new functional rubbers, higher requirements are placed on the functionality of polyurethane rubber materials. Compared with ordinary polyurethane rubber materials, polyurethane rubber materials used for post-cast concrete expansion joints and other dynamic gaps need to have excellent anti-corrosion properties to avoid performance degradation or failure due to corrosion during use. In addition, polyurethane rubber materials need to have strong adhesion to ensure that they can fit closely to the substrate during use to prevent falling off, enhance structural strength, prevent moisture penetration, ensure the sealing performance of expansion joints, meet their performance requirements in dynamic environments, ensure the safety, stability and durability of the structure, and broaden its application areas.

[0004] The patent with announcement number CN104497955B discloses a polyurethane two-component material for expansion joints of plastic sites and a preparation method thereof. The polyurethane two-component material is composed of component A and component B. The raw materials cooperate with each other, so that the prepared polyurethane two-component material has the advantages of high strength, excellent bonding performance, short curing time, excellent weather resistance, etc. Therefore, a polyurethane rubber material with excellent performance can be prepared by adding optimized components in a targeted manner. Summary of the invention

[0005] In order to solve the problems mentioned in the background technology, the purpose of the present invention is to provide a functional polyurethane rubber material and a preparation method thereof.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A functional polyurethane rubber material consists of component A and component B; the component A comprises the following raw materials in parts by weight: 30-50 parts of functional additives and 10-20 parts of diisocyanate monomers; the component B comprises the following raw materials in parts by weight: 4-8 parts of viscosity-increasing and modifying components, 3-5 parts of 1,3-propylene glycol, 5-10 parts of talc, 3-5 parts of antioxidants, 2-3 parts of dioctyl phthalate, 1-2 parts of pigments, 2-4 parts of flame retardants, 0.5-1.5 parts of stannous octoate and 1-3 parts of zinc stearate.

[0008] Furthermore, the preparation method of the functional additive comprises the following steps:

[0009] A1: Mix the terminal epoxy polyether silicone oil and isopropanol, stir evenly, add 2-fluoroacrylic acid and catalyst under continuous nitrogen conditions, raise the system temperature to 60-70°C under stirring conditions, keep the temperature for 3-7 hours, stop heating and remove the nitrogen, cool to room temperature and then discharge to obtain modified terminal epoxy polyether silicone oil;

[0010] A2: Under nitrogen protection, add modified end-epoxy polyether silicone oil to the dimethyl sulfoxide solution, start stirring until a uniform solution is formed, add tert-butyl benzyl mercaptan and a photoinitiator, mix well, treat under ultraviolet light for 5 to 7 hours, and remove the solvent by reduced pressure distillation to obtain a functional additive.

[0011] Furthermore, in step A1, the catalyst is any one of tetramethylammonium bromide, tetrabutylammonium hydrogen sulfate or tetrabutylammonium bromide.

[0012] Furthermore, in step A2, the photoinitiator is any one of benzoin dimethyl ether, benzoin isopropyl ether or benzoin ethyl ether.

[0013] Furthermore, in step A2, the wavelength of the ultraviolet lamp is 365 nm.

[0014] Technical effect: In step A1, the epoxy group in the terminal epoxy polyether silicone oil structure can react with the carboxyl group in the 2-fluoroacrylic acid structure under the action of a catalyst, thereby introducing an unsaturated olefinic functional group into the structure of the terminal epoxy polyether silicone oil to obtain a modified terminal epoxy polyether silicone oil; in step A2, the unsaturated olefinic functional group in the modified terminal epoxy polyether silicone oil structure is used as an active site, and under the irradiation of a photoinitiator and an ultraviolet lamp, a click reaction can occur with the thiol group in the p-tert-butylbenzyl mercaptan structure to obtain a functional additive.

[0015] Furthermore, the preparation method of the viscosity-enhancing modified component comprises the following steps:

[0016] AA1: Petroleum resin and toluene are added to a reactor filled with nitrogen in sequence, and after being stirred evenly, 2-aminoethanethiol and a photoinitiator are added. The system is placed under a UV lamp for 1 to 3 hours under stirring. After the reaction is completed, the solvent is removed by rotary evaporation to obtain a modified petroleum resin;

[0017] AA2: Add modified petroleum resin to N,N-dimethylformamide, ultrasonically treat for 20 to 30 minutes, pass nitrogen, expel the air, add glycidyl furfural ether, and after the addition is completed, turn on the heating. After the system temperature reaches 50 to 70°C, stir at a constant temperature for 4 to 8 hours, wait for the material to cool naturally, and then discharge the material to obtain a viscosity-enhancing modified component.

[0018] Furthermore, in step AA1, the petroleum resin is DCPD petroleum resin.

[0019] Furthermore, in step AA1, the mass ratio of the petroleum resin to 2-aminoethanethiol is 1:0.1-0.4.

[0020] Technical effect: In step AA1, under the irradiation of a photoinitiator and an ultraviolet lamp, the unsaturated olefinic functional group in the petroleum resin structure can undergo a click reaction with the thiol group in the 2-aminoethanethiol structure, thereby introducing an amino group into the structure of the petroleum resin to obtain a modified petroleum resin; in step AA2, under a high temperature environment, the amino group in the modified petroleum resin structure can undergo a ring-opening reaction with the epoxy group in the glycidyl furfuryl ether structure, thereby introducing an active hydroxyl group into the structure of the petroleum resin to obtain a viscosity-enhancing modified component.

[0021] A method for preparing a functional polyurethane rubber material comprises the following steps:

[0022] Step 1: Add the functional additive and diisocyanate monomer into the reaction kettle, mix well, raise the temperature to 60-80°C, keep warm and stir for 2-4 hours to obtain component A;

[0023] Step 2: Add the viscosity-enhancing and modifying component, 1,3-propylene glycol, talcum powder, antioxidant, dioctyl phthalate, and pigment into a reaction kettle, raise the temperature to 90-100° C., vacuum dehydrate, then cool to 30-40° C., add flame retardant, stannous octoate, and zinc stearate, and stir mechanically to obtain component B;

[0024] Step 3: Evenly mix component A and component B to obtain a polyurethane rubber material.

[0025] Beneficial effects of the present invention:

[0026] (1) The present invention adds functional additives and viscosity-enhancing modifying components during the preparation of the polyurethane rubber material. The raw materials cooperate with each other, so that the prepared polyurethane rubber material has good corrosion resistance, excellent adhesion and strong waterproof performance, can meet the use requirements in various environments, will not be easily damaged, and has a good service life.

[0027] (2) The present invention prepares functional additives as the soft segment polymer of polyurethane. On the one hand, the structure of the functional additives contains a large amount of siloxane bonds, fluorine elements and tert-butyl structures, so that the prepared polyurethane rubber material has ultra-low surface energy and can form a strong hydrophobic barrier layer on its surface, thereby effectively avoiding the problem of decreased adhesion of the polyurethane rubber material due to rainwater infiltration, and at the same time reducing its interaction with corrosive media such as water, thereby enhancing the corrosion resistance of the polyurethane rubber material and avoiding the problem of performance degradation or failure due to corrosion during use. On the other hand, the structure of the functional additives contains a large amount of ether bonds, which effectively improves the adhesion between the polyurethane rubber material and the substrate.

[0028] (3) The present invention chemically connects petroleum resin and glycidyl furfural ether by covalent grafting to obtain a tackifying modified component. Since the tackifying modified component contains multiple active hydroxyl groups in its structure, it can react with the matrix of the polyurethane rubber material, thereby introducing the tackifying modified component into the structure of the polyurethane rubber material, and increasing the crosslinking density of the polyurethane rubber material, enhancing the cohesive force, so that the polyurethane rubber material has good bonding strength. In addition, petroleum resin has excellent tackifying properties, which can further improve the bonding strength of the rubber material, thereby improving the adhesion of the polyurethane rubber material to the substrate. In addition, the introduction of furan rings into the structure of the polyurethane rubber material can further enhance the corrosion resistance of the polyurethane rubber material.

[0029] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0031] Figure 1 This is an infrared spectrum test chart of the functional additive prepared in Example 1 of the present invention.

[0032] Figure 2 This is an infrared spectrum test chart of the viscosity-enhancing modified component prepared in Example 1 of the present invention. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1

[0035] 1. Preparation of functional additives

[0036] A1: Mix 6g of terminal epoxy polyether silicone oil and isopropanol, stir evenly, add 1.4g of 2-fluoroacrylic acid and 0.05g of tetrabutylammonium bromide under continuous nitrogen conditions, raise the system temperature to 65°C under stirring conditions, keep the temperature for 5h, stop heating and remove nitrogen, cool to room temperature and then discharge to obtain modified terminal epoxy polyether silicone oil;

[0037] A2: Under nitrogen protection, add 6 g of modified end-epoxy polyether silicone oil to the dimethyl sulfoxide solution, start stirring until a uniform solution is formed, then add 1.6 g of p-tert-butylbenzyl mercaptan and 0.08 g of benzoin isopropyl ether, mix well, irradiate under an ultraviolet lamp with a wavelength of 365 nm for 6 h, and remove the solvent by reduced pressure distillation to obtain a functional additive.

[0038] The functional additives were analyzed by infrared spectroscopy using a Nicolet iS50 Fourier transform infrared spectrometer produced by Thermo Corporation of the United States. Figure 1 As shown by Figure 1 It can be seen that in the infrared spectrum of functional additives, 1760cm -1 The absorption peak of the ester group C=O appears at 3280 cm -1 The absorption peak of hydroxyl group OH appears at 1241 cm -1 The absorption peak of CF appears at 1030cm -1 The absorption peak of ether bond COC appears at 1069 cm -1 The Si-O absorption peak appears at 3050cm -1 The absorption peak of CH on the benzene ring appears at 1195cm -1 The absorption peak of CSC appears at

[0039] 2. Preparation of viscosity-enhancing modified components

[0040] AA1: 3 g of DCPD petroleum resin and toluene were added to a reactor filled with nitrogen in sequence. After stirring, 0.8 g of 2-aminoethanethiol and 0.04 g of benzoin isopropyl ether were added. The system was placed under a UV lamp for 2 h while stirring. After the reaction was completed, the solvent was removed by rotary evaporation to obtain a modified petroleum resin.

[0041] AA2: Add 3g of modified petroleum resin to N,N-dimethylformamide, ultrasonically treat for 25min, pass nitrogen, expel the air, add 1g of glycidyl furfural ether, turn on the heating, and after the system temperature reaches 60°C, stir at a constant temperature for 6h. After the material cools naturally, discharge the material to obtain a viscosity-enhancing modified component.

[0042] The infrared spectroscopy analysis of the viscosity-enhancing and modified components was performed using a Nicolet iS50 Fourier transform infrared spectrometer produced by Thermo Corporation of the United States. Figure 1 As shown by Figure 1 It can be seen that in the infrared spectrum of the viscosity-enhancing modified component, 3295 cm -1 The absorption peak of hydroxyl group OH appears at 1024 cm -1 The absorption peak of ether bond COC appears at 1191 cm -1 The absorption peak of CSC appears at 3390 cm -1 The absorption peak of NH appears at 1245 cm -1 The absorption peak of CN appears at 1585cm -1 The absorption peak of furan ring appears at

[0043] 3. Preparation of polyurethane rubber

[0044] Step 1: Add 30 g of functional additive and 10 g of isophorone diisocyanate into the reaction kettle, mix well, raise the temperature to 60°C, keep stirring for 2 hours, and obtain component A;

[0045] Step 2: Add 4g of viscosity-enhancing and modifying component, 3g of 1,3-propylene glycol, 5g of talc, 3g of antioxidant 4010, 2g of dioctyl phthalate, and 1g of titanium dioxide to a reactor, raise the temperature to 90°C, vacuum dehydrate, and then cool to 30°C, add 2g of tri(2-chloroethyl) phosphate, 0.5g of stannous octoate and 1g of zinc stearate, and stir mechanically to obtain component B;

[0046] Step 3: Evenly mix component A and component B to obtain a polyurethane rubber material.

[0047] Example 2

[0048] Preparation of polyurethane rubber

[0049] Step 1: Add 40 g of functional additive and 15 g of isophorone diisocyanate into the reaction kettle, mix well, raise the temperature to 70°C, and stir for 3 hours to obtain component A;

[0050] Step 2: Add 6g of viscosity-enhancing and modifying component, 4g of 1,3-propylene glycol, 8g of talc, 4g of antioxidant 4010, 2.5g of dioctyl phthalate, and 1.5g of titanium dioxide to a reactor, raise the temperature to 95°C, vacuum dehydrate, and then cool to 35°C, add 3g of tri(2-chloroethyl) phosphate, 1g of stannous octoate and 2g of zinc stearate, and stir mechanically to obtain component B;

[0051] Step 3: Evenly mix component A and component B to obtain a polyurethane rubber material.

[0052] The preparation method of the functional additive and the viscosity-enhancing and modifying component is the same as that in Example 1.

[0053] Example 3

[0054] Preparation of polyurethane rubber

[0055] Step 1: Add 50 g of functional additive and 20 g of isophorone diisocyanate into a reaction kettle, mix well, raise the temperature to 80°C, and stir for 4 hours to obtain component A;

[0056] Step 2: 8g of viscosity-enhancing and modifying component, 5g of 1,3-propylene glycol, 10g of talc, 5g of antioxidant 4010, 3g of dioctyl phthalate, and 2g of titanium dioxide are added to a reactor, the temperature is increased to 100°C, vacuum dehydration is performed, and the temperature is then lowered to 40°C, 4g of tris(2-chloroethyl)phosphate, 1.5g of stannous octoate and 3g of zinc stearate are added, and mechanical stirring is performed to obtain component B;

[0057] Step 3: Evenly mix component A and component B to obtain a polyurethane rubber material.

[0058] The preparation method of the functional additive and the viscosity-enhancing and modifying component is the same as that in Example 1.

[0059] Comparative Example 1

[0060] Preparation of polyurethane rubber

[0061] Step 1: Add 40 g of functional additive and 15 g of isophorone diisocyanate into the reaction kettle, mix well, raise the temperature to 70°C, and stir for 3 hours to obtain component A;

[0062] Step 2: Add 4g of 1,3-propylene glycol, 8g of talc, 4g of antioxidant 4010, 2.5g of dioctyl phthalate, and 1.5g of titanium dioxide to a reactor, raise the temperature to 95°C, vacuum dehydrate, and then cool to 35°C, add 3g of tri(2-chloroethyl) phosphate, 1g of stannous octoate and 2g of zinc stearate, and stir mechanically to obtain component B;

[0063] Step 3: Evenly mix component A and component B to obtain a polyurethane rubber material.

[0064] The preparation method of the functional additive is the same as that in Example 1.

[0065] Comparative Example 2

[0066] Preparation of polyurethane rubber

[0067] Step 1: Add 40 g of polycarbonate diol and 15 g of isophorone diisocyanate into a reaction kettle, mix well, raise the temperature to 70° C., and stir for 3 hours to obtain component A;

[0068] Step 2: Add 6g of viscosity-enhancing and modifying component, 4g of 1,3-propylene glycol, 8g of talc, 4g of antioxidant 4010, 2.5g of dioctyl phthalate, and 1.5g of titanium dioxide to a reactor, raise the temperature to 95°C, vacuum dehydrate, and then cool to 35°C, add 3g of tri(2-chloroethyl) phosphate, 1g of stannous octoate and 2g of zinc stearate, and stir mechanically to obtain component B;

[0069] Step 3: Evenly mix component A and component B to obtain a polyurethane rubber material.

[0070] The preparation method of the viscosity-enhancing modified component is the same as that in Example 1.

[0071] Comparative Example 3

[0072] Preparation of polyurethane rubber

[0073] Step 1: Add 35g of polycarbonate diol, 5g of terminal epoxy polyether silicone oil and 15g of isophorone diisocyanate into a reaction kettle, mix well, increase the temperature to 70°C, and stir for 3h to obtain component A;

[0074] Step 2: Add 6g of viscosity-enhancing and modifying component, 4g of 1,3-propylene glycol, 8g of talc, 4g of antioxidant 4010, 2.5g of dioctyl phthalate, and 1.5g of titanium dioxide to a reactor, raise the temperature to 95°C, vacuum dehydrate, and then cool to 35°C, add 3g of tri(2-chloroethyl) phosphate, 1g of stannous octoate and 2g of zinc stearate, and stir mechanically to obtain component B;

[0075] Step 3: Evenly mix component A and component B to obtain a polyurethane rubber material.

[0076] The preparation method of the viscosity-enhancing modified component is the same as that in Example 1.

[0077] Comparative Example 4

[0078] Preparation of polyurethane rubber

[0079] Step 1: Add 40 g of functional additive and 15 g of isophorone diisocyanate into the reaction kettle, mix well, raise the temperature to 70°C, and stir for 3 hours to obtain component A;

[0080] Step 2: Add 6g of DCPD petroleum resin, 4g of 1,3-propylene glycol, 8g of talc, 4g of antioxidant 4010, 2.5g of dioctyl phthalate, and 1.5g of titanium dioxide into a reactor, raise the temperature to 95°C, vacuum dehydrate, and then cool to 35°C, add 3g of tri(2-chloroethyl) phosphate, 1g of stannous octoate and 2g of zinc stearate, and stir mechanically to obtain component B;

[0081] Step 3: Evenly mix component A and component B to obtain a polyurethane rubber material.

[0082] The preparation method of the functional additive is the same as that in Example 1.

[0083] Comparative Example 5

[0084] Step 1: Add 40 g of polycarbonate diol and 15 g of isophorone diisocyanate into a reaction kettle, mix well, raise the temperature to 70° C., and stir for 3 hours to obtain component A;

[0085] Step 2: Add 4g of 1,3-propylene glycol, 8g of talc, 4g of antioxidant 4010, 2.5g of dioctyl phthalate, and 1.5g of titanium dioxide to a reactor, raise the temperature to 95°C, vacuum dehydrate, and then cool to 35°C, add 3g of tri(2-chloroethyl) phosphate, 1g of stannous octoate and 2g of zinc stearate, and stir mechanically to obtain component B;

[0086] Step 3: Evenly mix component A and component B to obtain a polyurethane rubber material.

[0087] Test Example 1: Corrosion resistance test

[0088] After the polyurethane rubber materials prepared in Examples 1 to 3 of the present invention and Comparative Examples 1 to 5 were cured at room temperature for 10 hours, they were cut into samples with a thickness of 2.0 mm ± 0.2 mm. The corrosion resistance of the samples was tested according to GB / T 1690-2010 "Test Method for Liquid Resistance of Vulcanized Rubber or Thermoplastic Rubber". The corrosion liquid 1 was concentrated hydrochloric acid with a mass fraction of 65%, and the corrosion liquid 2 was sodium hydroxide solution with a mass fraction of 20%. The specific test results are shown in the following table:

[0089]

[0090] As can be seen from the above table, the polyurethane rubber materials prepared in Examples 1 to 3 all have good corrosion resistance; only functional additives and tackifying and modifying components are added to the polyurethane rubber materials prepared in Comparative Examples 1 and 2, respectively, and the corrosion resistance of the polyurethane rubber materials is reduced compared with the examples; terminal epoxy polyether silicone oil and tackifying and modifying components are added to the polyurethane rubber material prepared in Comparative Example 3, and since no super-hydrophobic structure is formed on its surface, the corrosion resistance of the polyurethane rubber material is reduced; functional additives and DCPD petroleum resin are added to the polyurethane rubber material prepared in Comparative Example 4, and since DCPD petroleum resin cannot react with the matrix and no furan ring is introduced, the corrosion resistance of the polyurethane rubber material is not as good as that of the examples; no functional additives and tackifying and modifying components are added to the polyurethane rubber material prepared in Comparative Example 5, so the corrosion resistance of the polyurethane rubber material is poor.

[0091] Test Example 2: Adhesion and waterproof performance test

[0092] The polyurethane rubber materials prepared in Examples 1 to 3 of the present invention and Comparative Examples 1 to 5 are uniformly coated on a clean tinplate surface and completely cured to form a sample. The peel strength of the sample is tested according to GB / T 2790-1995 "Adhesive 180° Peel Strength Test Method Flexible Material to Rigid Material"; the water contact angle of the sample is tested using a PZ-200SD contact angle tester. The specific test results are shown in the following table:

[0093] Peel strength (N / m) Water contact angle (°) Example 1 8.4 151 Example 2 8.6 152 Example 3 8.2 151 Comparative Example 1 6.1 150 Comparative Example 2 7.0 115 Comparative Example 3 7.5 135 Comparative Example 4 6.6 150 Comparative Example 5 4.1 109

[0094] As can be seen from the above table, the polyurethane rubber materials prepared in Examples 1 to 3 all have good adhesion and waterproof properties; Comparative Example 1 only adds functional additives. Compared with the examples, the waterproof performance of the polyurethane rubber material is better, but the peel strength decreases, and the adhesion to the substrate is poor; Comparative Example 2 only adds tackifying and modifying components. Compared with the examples, the waterproof performance of the polyurethane rubber material is poor, and the adhesion to the substrate is general; Comparative Example 3 uses terminal epoxy polyether silicone oil instead of functional additives. Although the waterproof performance of the polyurethane rubber material can be improved, the super-hydrophobic effect cannot be achieved, and there is still the problem of decreased adhesion due to rainwater infiltration; Comparative Example 4 uses DCPD petroleum resin instead of tackifying and modifying components. Although the peel strength of the polyurethane rubber material can be improved, it does not react with the matrix, and the adhesion of the polyurethane rubber material to the substrate decreases; The polyurethane rubber material prepared in Comparative Example 5 does not add functional additives and tackifying and modifying components, so the various performances of the polyurethane rubber material are the worst.

[0095] The above contents are merely examples and explanations of the concept of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A functional polyurethane rubber material, characterized in that: The invention is composed of component A and component B; the component A comprises the following raw materials in parts by weight: 30 to 50 parts of functional additives and 10 to 20 parts of diisocyanate monomers; the component B comprises the following raw materials in parts by weight: 4 to 8 parts of viscosity-increasing and modifying components, 3 to 5 parts of 1,3-propylene glycol, 5 to 10 parts of talc, 3 to 5 parts of antioxidants, 2 to 3 parts of dioctyl phthalate, 1 to 2 parts of pigments, 2 to 4 parts of flame retardants, 0.5 to 1.5 parts of stannous octoate and 1 to 3 parts of zinc stearate.

2. A functional polyurethane rubber material according to claim 1, characterized in that: The preparation method of the functional additive comprises the following steps: A1: Mix the terminal epoxy polyether silicone oil and isopropanol, stir evenly, add 2-fluoroacrylic acid and catalyst under continuous nitrogen conditions, raise the system temperature to 60-70°C under stirring conditions, keep the temperature for 3-7 hours, stop heating and remove the nitrogen, cool to room temperature and then discharge to obtain modified terminal epoxy polyether silicone oil; A2: Under nitrogen protection, add modified end-epoxy polyether silicone oil to the dimethyl sulfoxide solution, start stirring until a uniform solution is formed, add tert-butyl benzyl mercaptan and a photoinitiator, mix well, treat under ultraviolet light for 5 to 7 hours, and remove the solvent by reduced pressure distillation to obtain a functional additive.

3. A functional polyurethane rubber material according to claim 2, characterized in that: In step A1, the catalyst is any one of tetramethylammonium bromide, tetrabutylammonium hydrogen sulfate or tetrabutylammonium bromide.

4. A functional polyurethane rubber material according to claim 2, characterized in that: In step A2, the photoinitiator is any one of benzoin dimethyl ether, benzoin isopropyl ether or benzoin ethyl ether.

5. The functional polyurethane rubber material according to claim 2, characterized in that: In step A2, the wavelength of the ultraviolet lamp is 365nm.

6. The functional polyurethane rubber material according to claim 1, characterized in that: The preparation method of the viscosity-enhancing modified component comprises the following steps: AA1: Petroleum resin and toluene are added to a reactor filled with nitrogen in sequence, and after being stirred evenly, 2-aminoethanethiol and a photoinitiator are added. The system is placed under a UV lamp for 1 to 3 hours under stirring. After the reaction is completed, the solvent is removed by rotary evaporation to obtain a modified petroleum resin; AA2: Add modified petroleum resin to N,N-dimethylformamide, ultrasonically treat for 20 to 30 minutes, pass nitrogen, expel the air, add glycidyl furfural ether, and after the addition is completed, turn on the heating. After the system temperature reaches 50 to 70°C, stir at a constant temperature for 4 to 8 hours, wait for the material to cool naturally, and then discharge the material to obtain a viscosity-enhancing modified component.

7. A functional polyurethane rubber material according to claim 6, characterized in that: In step AA1, the petroleum resin is DCPD petroleum resin.

8. The functional polyurethane rubber material according to claim 6, characterized in that: In step AA1, the mass ratio of the petroleum resin to 2-aminoethanethiol is 1:0.1-0.

4.

9. A method for preparing the functional polyurethane rubber material according to claim 1, characterized in that: The following steps are involved: Step 1: Add the functional additive and diisocyanate monomer into the reaction kettle, mix well, raise the temperature to 60-80°C, keep warm and stir for 2-4 hours to obtain component A; Step 2: Add the viscosity-enhancing and modifying component, 1,3-propylene glycol, talcum powder, antioxidant, dioctyl phthalate, and pigment into a reaction kettle, raise the temperature to 90-100° C., vacuum dehydrate, then cool to 30-40° C., add flame retardant, stannous octoate, and zinc stearate, and stir mechanically to obtain component B; Step 3: Mix component A and component B evenly to obtain polyurethane rubber material.

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