High-comfort chlorosulfonated polyethylene glove and preparation method thereof

Abstract

The invention discloses a high-comfort chlorosulfonated polyethylene glove and a preparation method thereof, and belongs to the technical field of preparation of chlorosulfonated polyethylene gloves. The chlorosulfonated polyethylene glove is composed of three layers of adhesive films which are respectively an inner layer adhesive film, a middle layer adhesive film and an outer layer adhesive film, the chlorosulfonated polyethylene glove is prepared by adopting an impregnation method, and graft modified chlorosulfonated polyethylene emulsion is adopted in latex for generating the inner-layer adhesive film. According to the invention, the N-acryloylmorpholine and N, N-dimethylacrylamide composite monomer is adopted to carry out graft modification on chlorosulfonated polyethylene, and a morpholine ring introduced into the CSM emulsion after graft modification has excellent biocompatibility, so that a natural antibacterial effect can be provided, and the risk of cross infection is effectively reduced. The introduction of the dimethylacrylamide group significantly enhances the hydrophilicity of the material, so that the air permeability of the glove is superior to that of the traditional CSM glove, and the problems of stuffiness and comfort when the glove is worn for a long time are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of the preparation of chlorosulfonated polyethylene gloves, and particularly relates to a highly comfortable chlorosulfonated polyethylene glove and a preparation method thereof. Background Art

[0002] Chlorosulfonated polyethylene (CSM) is a high-performance special rubber material. Since chlorosulfonyl groups are introduced into its molecular chain, it shows excellent performance in terms of chemical corrosion resistance, ozone resistance, oil resistance, and flame retardancy, and at the same time has good anti-aging performance. These characteristics enable CSM to be widely used in fields such as wire and cable sheaths, sealing products, and chemical protection gloves. Currently, the main methods for preparing chlorosulfonated polyethylene gloves include the dipping method, the coating method, and the molding method. Among them, the dipping method has become the most commonly used preparation method due to its simple process, low equipment investment, and stable product quality. The basic principle of this process is to immerse the pretreated glove mold into the prepared CSM latex, adjust the glove thickness by controlling the dipping time and the lifting speed, and then complete the molding through processes such as coagulation, drying, and vulcanization.

[0003] However, there are still many technical defects in the existing CSM protective gloves and their preparation processes. Since the wall thickness of the gloves after dipping molding is relatively thick and the structure is relatively dense, the air permeability is often not ideal, and it is easy to cause the hands to be damp and stuffy after wearing for a long time. At the same time, the gloves prepared with conventional formulations have a relatively hard feel and insufficient softness, seriously affecting the flexibility and accuracy of hand operations, especially in working environments that require fine operations. In addition, during the repeated bending use of the gloves, stress concentration is likely to occur, especially at the finger joints, resulting in fatigue cracking and a short service life.

[0004] With the continuous improvement of industrial safety standards and the increasing requirements of users for comfort, there is an urgent need to develop a preparation technology for CSM protective gloves that can not only maintain excellent protective performance but also have good comfort, softness, and fatigue resistance. Summary of the Invention

[0005] Based on the problems existing in the background art, the present invention provides a highly comfortable chlorosulfonated polyethylene glove and a preparation method thereof. By chemically modifying the CSM molecular chain, problems such as a hard feel and poor comfort are solved at the molecular level, and a multilayer composite protective glove with excellent performance is prepared.

[0006] The present invention is implemented through the following technical solutions: A highly comfortable chlorosulfonated polyethylene glove, wherein the chlorosulfonated polyethylene glove is composed of three layers of rubber films, namely an inner rubber film, a middle rubber film, and an outer rubber film; The chlorosulfonated polyethylene gloves are prepared by the dipping method, and a graft-modified chlorosulfonated polyethylene emulsion is used in the latex for generating the inner layer film.

[0007] Furthermore, the latex for generating the inner layer film comprises the following raw materials in parts by weight: 100 - 120 parts of graft-modified chlorosulfonated polyethylene emulsion, 10 - 20 parts of polyethylene glycol 400, 3 - 5 parts of magnesium oxide, 0.5 - 1.5 parts of accelerator DM, 0.5 - 1.5 parts of wetting agent OP-10, and 0 - 30 parts of pure water.

[0008] Furthermore, the specific preparation method of the graft-modified chlorosulfonated polyethylene emulsion is as follows: adjust the solid content of the chlorosulfonated polyethylene emulsion to 35 - 40%, heat it up to 65 - 75 °C, and adjust the pH to 7.8 - 8.2; add functional monomers N-acryloylmorpholine and N,N-dimethylacrylamide; then add initiators ammonium persulfate and sodium bisulfite, and stir and react for 2.5 - 3.5 h under nitrogen protection. After the reaction is completed, cool it down to room temperature, adjust the pH to 7.8 - 8.2, and filter to remove gel particles to obtain the graft-modified chlorosulfonated polyethylene emulsion.

[0009] Furthermore, the total amount of N-acryloylmorpholine and N,N-dimethylacrylamide accounts for 10 - 15% of the mass of chlorosulfonated polyethylene, and the mass ratio of N-acryloylmorpholine to N,N-dimethylacrylamide is 3:2; The amount of ammonium persulfate accounts for 0.8 - 1.2% of the mass of chlorosulfonated polyethylene; The amount of sodium bisulfite accounts for 0.1 - 0.3% of the mass of chlorosulfonated polyethylene.

[0010] Furthermore, the latex for generating the middle layer film comprises the following raw materials in parts by weight: 100 - 120 parts of chlorosulfonated polyethylene emulsion with a solid content of 35 - 40%, 15 - 25 parts of carboxy nitrile rubber emulsion with a solid content of 40 - 50%, 5 - 15 parts of EVA emulsion with a solid content of 50 - 55%, 3 - 5 parts of magnesium oxide, 3 - 5 parts of zinc oxide, 1 - 2 parts of accelerator CZ, 0.1 - 0.3 parts of accelerator TMTD, 3 - 5 parts of modified aramid short fibers, 0.5 - 1 part of emulsifier TRITON X-100, and 0 - 30 parts of pure water.

[0011] Furthermore, the modified aramid short fibers are aramid short fibers treated with a silane coupling agent with a mass concentration of 3%.

[0012] Further, the latex for generating the outer layer film comprises the following raw materials in parts by weight: 100 - 120 parts of chlorosulfonated polyethylene emulsion with a solid content of 35 - 40%, 10 - 15 parts of N330 carbon black, 3 - 8 parts of silica, 5 - 8 parts of aqueous fluorocarbon emulsion, 3 - 5 parts of magnesium oxide, 3 - 5 parts of zinc oxide, 0.8 - 1.5 parts of accelerator TBzTD, 1.5 - 2.5 parts of polycarboxylate dispersant, 3 - 7 parts of aqueous hydroxyl silicone oil emulsion, 1 - 2 parts of non-ionic silicone surfactant, 0.2 - 0.4 parts of carboxymethyl cellulose, 0.5 - 1.5 parts of wetting agent OP-10, and 0 - 30 parts of pure water.

[0013] Further, the solid content of the aqueous fluorocarbon emulsion is 40 - 50%; the solid content of the aqueous hydroxyl silicone oil emulsion is 30 - 50%.

[0014] The present invention also discloses a preparation method of the high-comfort chlorosulfonated polyethylene gloves, comprising the following steps: S1. Prepare the dipping latex for generating the inner layer film; S2. Prepare the dipping latex for generating the middle layer film; S3. Prepare the dipping latex for generating the outer layer film; S4. Clean the mold and dry the mold. After the mold is cooled to room temperature, prepare gloves by three-layer dipping; S5. Subject the dipped gloves to vulcanization treatment, crimp the edges, and demold to obtain the gloves.

[0015] Further, the specific operation of preparing gloves by three-layer dipping in S4 includes: S41. Immerse the mold in the dipping latex for generating the inner layer film. The mold temperature is 50°C, the residence time is 8 - 10 s, the pre-curing temperature is 70°C, and the pre-curing time is 10 - 12 min; S42. Immerse the mold with the inner layer film in the dipping latex for generating the middle layer film. The mold temperature is 55°C, the residence time is 6 - 8 s, the pre-curing temperature is 85°C, and the pre-curing time is 10 - 12 min; S43. Immerse the mold with the inner layer film and the middle layer film in the dipping latex for generating the outer layer film. The mold temperature is 60°C, the residence time is 4 - 6 s, the pre-curing temperature is 85°C, and the pre-curing time is 12 - 15 min.

[0016] The beneficial effects of the present invention: 1. The three - layer differential structure design adopted in the present invention realizes the precise partitioning and collaborative optimization of functions. The inner - layer graft - modified CSM provides excellent comfort and bioactive functions. The middle - layer CSM maintains the original excellent chemical protection performance and flame - retardant characteristics. The outer - layer is compound - modified by an aqueous fluorocarbon emulsion and an aqueous silicone oil system, obtaining excellent wear resistance and surface properties. The overall service life is extended compared with traditional single - layer or simple composite gloves. The addition of carboxy - nitrile rubber and EVA emulsion further enhances the toughness and anti - fatigue performance of the middle - layer, making the gloves less likely to generate cracks during repeated bending and stretching, and is especially suitable for working environments that require fine operations.

[0017] 2. The present invention graft - modifies chlorosulfonated polyethylene by using N - acryloylmorpholine and N,N - dimethylacrylamide composite monomers, and successfully bonds multiple functional groups to the CSM molecular chain, improving the performance defects of traditional CSM gloves. The morpholine ring introduced into the graft - modified CSM emulsion has excellent biocompatibility and can provide a natural antibacterial effect, with an inhibition rate of more than 95% against common bacteria, effectively reducing the risk of cross - infection. The introduction of dimethylacrylamide groups significantly enhances the hydrophilicity of the material, making the breathable performance of the gloves better than that of traditional CSM gloves, and improving the stuffy feeling and comfort problems during long - term wearing. Detailed implementation mode

[0018] The following further details the technical solutions of the present invention in combination with specific embodiments, but the protection scope of the present invention is not limited to the following embodiments only.

[0019] The specific preparation method of the graft - modified chlorosulfonated polyethylene emulsion used in the embodiments and comparative examples of the present invention is as follows: By weight, 1000 parts of chlorosulfonated polyethylene emulsion (solid content 40%) is heated to 70 °C, and the pH is adjusted to 8.0; 36 parts of N - acryloylmorpholine and 24 parts of N,N - dimethylacrylamide are added; then 4 parts of ammonium persulfate as an initiator and 0.8 part of sodium bisulfite are added. Under nitrogen protection, the reaction is carried out at 70 °C for 3 hours, with a stirring speed of 250 rpm. After the reaction is completed, the temperature is lowered to room temperature, the pH is adjusted to 8.0, and the gel particles are removed by filtering through a 100 - mesh sieve to obtain the graft - modified chlorosulfonated polyethylene emulsion. After detection, the grafting rate is 13.8%, the solid content of the emulsion is 42%, the pH value is 8.0, and the viscosity is 800 mPa·s.

[0020] Example 1: A preparation method of a high - comfort chlorosulfonated polyethylene glove, comprising the following steps: S1. Prepare the dipping latex for generating the inner layer film: By weight, take 100 parts of graft-modified chlorosulfonated polyethylene emulsion, add 15 parts of polyethylene glycol 400, 4 parts of magnesium oxide, 1 part of accelerator DM, and 1 part of wetting agent OP-10; First dissolve polyethylene glycol 400 in pure water, then disperse magnesium oxide and the accelerator evenly in this solution, and finally slowly add this dispersion to the graft-modified CSM emulsion, stir for 30 minutes, and adjust the final solid content to 45% with pure water; S2. Prepare the dipping latex for generating the middle layer film: By weight, take 100 parts of chlorosulfonated polyethylene emulsion with a solid content of 38%, add 20 parts of carboxy nitrile butadiene rubber emulsion with a solid content of 45%, 10 parts of EVA emulsion with a solid content of 52%, 4 parts of magnesium oxide, 4 parts of zinc oxide, 1.5 parts of accelerator CZ, 0.2 part of accelerator TMTD, 4 parts of aramid short fibers treated with 3% silane coupling agent, and 0.8 part of emulsifier TRITON X-100; Pre-disperse the solid auxiliaries in water to make a slurry, then add each emulsion component in turn, stir and disperse for 30 minutes, and adjust the final solid content to 48% with pure water; S3. Prepare the dipping latex for generating the outer layer film: By weight, take 100 parts of chlorosulfonated polyethylene emulsion with a solid content of 38%, add 12 parts of N330 carbon black, 5 parts of white carbon black, 6 parts of waterborne fluorocarbon emulsion, 4 parts of magnesium oxide, 4 parts of zinc oxide, 1.2 parts of accelerator TBzTD, 2 parts of polycarboxylate dispersant, 5 parts of waterborne hydroxyl silicone oil emulsion with a solid content of 35%, 1.5 parts of non-ionic organosilicon surfactant, 0.3 part of carboxymethyl cellulose, and 1 part of wetting agent OP-10; First pre-disperse carbon black and white carbon black in water, then add other components in turn, stir and disperse for 30 minutes, and adjust the final solid content to 47%. S4. Clean the mold and dry the mold. Let the mold cool to room temperature and prepare gloves by three-layer dipping: S41. Immerse the mold in the dipping latex for generating the inner layer film. The mold temperature is 50 °C, the residence time is 9 s, the pre-curing temperature is 70 °C, and the pre-curing time is 10 min; S42. Immerse the mold with the inner layer film in the dipping latex for generating the middle layer film. The mold temperature is 55 °C, the residence time is 7 s, the pre-curing temperature is 85 °C, and the pre-curing time is 11 min; S43. Immerse the mold with the inner layer film and the middle layer film in the dipping latex for generating the outer layer film. The mold temperature is 60 °C, the residence time is 5 s, the pre-curing temperature is 85 °C, and the pre-curing time is 13 min; S5. Vulcanize the gloves after impregnation: Gradually heat from room temperature to 150 °C at a constant speed, which takes 35 minutes, maintain at 150 °C for 30 minutes, then cool down to 130 °C and keep warm for 12 minutes. After vulcanization, perform hemming treatment and demoulding to obtain the product.

[0021] Example 2: A preparation method of a highly comfortable chlorosulfonated polyethylene glove, comprising the following steps: Steps S1 - S3: Prepare three - layer latex: Inner - layer latex: By weight, 110 parts of graft - modified chlorosulfonated polyethylene emulsion, 18 parts of polyethylene glycol 400, 5 parts of magnesium oxide, 1.3 parts of accelerator DM, 1.2 parts of wetting agent OP - 10, and adjust the final solid content to 45% with pure water.

[0022] Middle - layer latex: By weight, 110 parts of chlorosulfonated polyethylene emulsion (solid content 38%), 22 parts of carboxylated nitrile rubber emulsion (solid content 45%), 12 parts of EVA emulsion (solid content 52%), 5 parts of magnesium oxide, 5 parts of zinc oxide, 1.8 parts of accelerator CZ, 0.3 part of accelerator TMTD, 5 parts of modified aramid short fibers, 0.9 part of emulsifier TRITON X - 100, and adjust the final solid content to 45% with pure water.

[0023] Outer - layer latex: By weight, 110 parts of chlorosulfonated polyethylene emulsion (solid content 38%), 14 parts of N330 carbon black, 7 parts of white carbon black, 6.5 parts of aqueous fluorocarbon emulsion, 5 parts of magnesium oxide, 5 parts of zinc oxide, 1.4 parts of accelerator TBzTD, 2.3 parts of polycarboxylate dispersant, 6 parts of aqueous hydroxyl silicone oil emulsion (solid content 40%), 1.8 parts of non - ionic organosilicon surfactant, 0.4 part of carboxymethyl cellulose, 1.3 parts of wetting agent OP - 10, and adjust the final solid content to 48% with pure water.

[0024] Steps S4 - S5: Impregnation and vulcanization are the same as in Example 1.

[0025] Comparative Example 1: The difference between this comparative example and Example 1 is that the chlorosulfonated polyethylene emulsion used for preparing the impregnating latex for the inner - layer film is un - graft - modified. Inner - layer latex: By weight, 100 parts of chlorosulfonated polyethylene emulsion (solid content 42%), add 15 parts of polyethylene glycol 400, 4 parts of magnesium oxide, 1 part of accelerator DM, 1 part of wetting agent OP - 10; adjust the final solid content to 45% with pure water; the remaining steps are the same as in Example 1.

[0026] Comparative Example 2: The difference between this comparative example and Example 1 lies in that the graft-modified chlorosulfonated polyethylene emulsion is modified with a single functional monomer, that is, only N-acryloylmorpholine is used for graft-modifying CSM. The dosage of N-acryloylmorpholine is 60 parts (15% of the weight of chlorosulfonated polyethylene), and the rest are the same as in Example 1.

[0027] Comparative Example 3: The difference between this comparative example and Example 1 lies in that the graft-modified chlorosulfonated polyethylene emulsion is modified with a single functional monomer, that is, only N,N-dimethylacrylamide is used for graft-modifying CSM. The dosage of N,N-dimethylacrylamide is 60 parts (15% of the weight of chlorosulfonated polyethylene), and the rest are the same as in Example 1.

[0028] Comparative Example 4: The difference between this comparative example and Example 1 lies in that the dipping latex for preparing the middle layer film does not include aramid short fibers treated with 3% silane coupling agent, and the rest are the same as in Example 1.

[0029] Comparative Example 5: The difference between this comparative example and Example 1 lies in that only double-layer structure gloves are prepared, including an inner layer film and an outer layer film, without a middle layer film. The formulations of the inner layer film and the outer layer film are the same as in Example 1, and the dipping process is adjusted accordingly to two layers.

[0030] Test Example 1: The performance of the chlorosulfonated polyethylene gloves prepared in Examples 1-2 and Comparative Examples 1-5 was tested, and the test results are shown in Table 1.

[0031] Table 1 Performance test results of chlorosulfonated polyethylene gloves prepared in examples and comparative examples Project Test Standard Unit Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Total Thickness ASTM D374 mm 0.52 0.58 0.48 0.51 0.49 0.5 0.38 Shore A Hardness ASTM D2240 Degree 60 57 68 63 58 61 59 Tensile Strength ASTM D412 MPa 19.8 21.2 18.2 18.9 19.5 19.1 16.8 Tear Strength ASTM D624 N / mm 82 89 75 78 81 69 58 Elongation at Break ASTM D412 % 485 520 420 450 495 475 440 Puncture Resistance ASTM F1342 N 28.5 31.2 26.8 27.9 28.2 27.1 22.4 Chemical Penetration Resistance ASTM F739 Breakthrough Time (min) >480 >480 >480 >480 >480 >480 >360 Fatigue Life ASTM F392 Ten Thousand Times Bending 8.5 8.8 6.5 6.7 7.6 7.5 5.0 Antibacterial Rate - Escherichia coli AATCC 100 % 96 97 No Obvious Effect 95 No Obvious Effect 96 96 Antibacterial Rate - Staphylococcus aureus AATCC 100 % 95 97 No Obvious Effect 94 No Obvious Effect 95 96 Antibacterial Persistence Test After 100 Washings % 94 95 - 93 - 94 94 It can be seen from the data in Table 1 that the performance of the chlorosulfonated polyethylene gloves prepared in Examples 1 and 2 of the present invention is significantly better than that of the comparative example. In Comparative Example 1, the chlorosulfonated polyethylene without graft modification is used, and the hardness is higher than that of Examples 1 and 2, which is not conducive to improving the softness and wearing comfort of the gloves; and the gloves prepared in Comparative Example 1 do not have antibacterial properties. Comparative Examples 2 and 3 are modified by single N-acryloylmorpholine and N,N-dimethylacrylamide, respectively, and the performance of the gloves is between Comparative Example 1 and the embodiment. Single N-acryloylmorpholine modification (Comparative Example 2) has good antibacterial performance, but the reduction in hardness is limited. The use of N,N-dimethylacrylamide modification (Comparative Example 3) has good softness, but the antibacterial effect is obviously insufficient. The composite modification of N-acryloylmorpholine and N,N-dimethylacrylamide in the present invention not only ensures excellent antibacterial properties, but also achieves good softness, reflecting a significant synergistic effect. In Comparative Example 4, the modified aramid staple fiber is removed, and its tear strength is reduced, and the fatigue life is only 75,000 bends. Comparative Example 5 adopts a double-layer structure design. Although it is comparable to the three-layer structure in hardness and certain individual properties, it is obviously insufficient in comprehensive mechanical properties: the tensile strength is only 16.8 MPa, 15.2% lower than that of Example 1; the tear strength is 58 N / mm, 29.3% lower than that of Example 1; the puncture resistance is only 22.4 N, 21.4% lower than that of Example 1, and the fatigue life is only 50,000 bending times, far lower than the 85,000-88,000 times of the three-layer structure.

[0032] Test Example 2: The chlorosulfonated polyethylene gloves prepared in Examples 1-2 and Comparative Examples 1-5 were tested for comfort and usability.

[0033] Thirty volunteers, aged 25-45 years old, half male and half female, were selected and asked to wear the masks for 4 consecutive hours at room temperature of 25±2℃ and relative humidity of 60±5%.

[0034] Test the following: 1. Wearing comfort: Volunteers will give a subjective comfort rating after wearing the headset (1-5 points); 2. Operational flexibility: Conduct fine operation tests (gripping small objects) and grasping tests to evaluate the ease of operation; 3. Breathable comfort: Wear it for 4 hours continuously and evaluate the feeling of stuffiness and sweating every hour; 4. Overall satisfaction: A comprehensive satisfaction evaluation will be conducted after the test.

[0035] Rating criteria: 5 points - very satisfied, 4 points - satisfied, 3 points - average, 2 points - dissatisfied, 1 point - very dissatisfied.

[0036] The test results are shown in Table 2.

[0037] Table 2 Test Results of Comfort and Usability of Chlorosulfonated Polyethylene Gloves Prepared in Examples and Comparative Examples Test Items Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Wearing Comfort 4.2 4.4 3.1 3.8 4.0 4.1 3.9 Operation Flexibility 4.1 4.3 3.4 3.9 4.2 4.0 4.0 Breathable Comfort 4.3 4.5 2.8 3.7 4.1 4.2 4.1 Overall Satisfaction 4.2 4.4 3.1 3.8 4.1 4.1 4.0 The results in Table 2 show that Examples 1 and 2 are significantly superior to the comparative examples in all comfort indexes, especially outstanding in breathable comfort. Since the graft modification technology was not used in Comparative Example 1, all comfort indexes are significantly lower; the performance of Comparative Examples 2 and 3 modified with a single monomer has been improved, but it is still not as good as that of the examples modified with a double monomer composite; the overall performance of the three-layer structure design is more balanced than that of the double-layer structure.

[0038] The feedback from volunteers shows that the gloves prepared by the present invention have significantly reduced stuffy feeling during long-term wearing, good operation flexibility, and the overall wearing experience is significantly better than that of traditional CSM gloves.

[0039] Finally, it should be noted that the above-mentioned embodiments only represent several implementation manners of the present invention, and are not intended to limit the present invention. For those of ordinary skill in the art, any modifications, equivalent replacements, improvements, etc. made without departing from the concept of the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of this invention patent shall be subject to the appended claims.

Claims

1. A chlorosulfonated polyethylene glove with high comfort, characterized in that, The chlorosulfonated polyethylene glove is composed of three layers of rubber films, namely an inner rubber film, a middle rubber film and an outer rubber film; The chlorosulfonated polyethylene glove is prepared by an impregnation method, and a graft-modified chlorosulfonated polyethylene emulsion is used in the latex for forming the inner rubber film.

2. The chlorosulfonated polyethylene gloves with high comfort according to claim 1, characterized in that, The latex for forming the inner rubber film comprises the following raw materials in parts by weight: 100-120 parts of graft-modified chlorosulfonated polyethylene emulsion, 10-20 parts of polyethylene glycol 400, 3-5 parts of magnesium oxide, 0.5-1.5 parts of accelerator DM, 0.5-1.5 parts of wetting agent OP-10, and 0-30 parts of pure water.

3. The chlorosulfonated polyethylene gloves with high comfort according to claim 1, characterized in that, The specific preparation method of the graft-modified chlorosulfonated polyethylene emulsion is as follows: adjust the solid content of the chlorosulfonated polyethylene emulsion to 35-40%, raise the temperature to 65-75 °C, and adjust the pH to 7.8-8.2; add functional monomers N-acryloylmorpholine and N,N-dimethylacrylamide; continue to add initiators ammonium persulfate and sodium bisulfite, and stir and react for 2.5-3.5 h under nitrogen protection. After the reaction is completed, cool down to room temperature, adjust the pH to 7.8-8.2, and filter to remove gel particles to obtain the graft-modified chlorosulfonated polyethylene emulsion.

4. The chlorosulfonated polyethylene glove with high comfort according to claim 3, characterized in that, The total amount of N-acryloylmorpholine and N,N-dimethylacrylamide accounts for 10-15% of the mass of chlorosulfonated polyethylene, and the mass ratio of N-acryloylmorpholine to N,N-dimethylacrylamide is 3:2; The amount of ammonium persulfate accounts for 0.8-1.2% of the mass of chlorosulfonated polyethylene; The amount of sodium bisulfite accounts for 0.1-0.3% of the mass of chlorosulfonated polyethylene.

5. The chlorosulfonated polyethylene glove with high comfort according to claim 1, wherein The latex for forming the middle rubber film comprises the following raw materials in parts by weight: 100-120 parts of chlorosulfonated polyethylene emulsion with a solid content of 35-40%, 15-25 parts of carboxybutadiene rubber emulsion with a solid content of 40-50%, 5-15 parts of EVA emulsion with a solid content of 50-55%, 3-5 parts of magnesium oxide, 3-5 parts of zinc oxide, 1-2 parts of accelerator CZ, 0.1-0.3 parts of accelerator TMTD, 3-5 parts of modified aramid short fibers, 0.5-1 part of emulsifier TRITON X-100, and 0-30 parts of pure water.

6. The chlorosulfonated polyethylene glove with high comfort according to claim 5, characterized in that, The modified aramid short fibers are aramid short fibers treated with a silane coupling agent with a mass concentration of 3%.

7. The chlorosulfonated polyethylene glove with high comfort according to claim 1, characterized in that, The latex for forming the outer rubber film comprises the following raw materials in parts by weight: 100-120 parts of chlorosulfonated polyethylene emulsion with a solid content of 35-40%, 10-15 parts of N330 carbon black, 3-8 parts of white carbon black, 5-8 parts of aqueous fluorocarbon emulsion, 3-5 parts of magnesium oxide, 3-5 parts of zinc oxide, 0.8-1.5 parts of accelerator TBzTD, 1.5-2.5 parts of polycarboxylate dispersant, 3-7 parts of aqueous hydroxy silicone oil emulsion, 1-2 parts of nonionic organosilicon surfactant, 0.2-0.4 part of carboxymethyl cellulose, 0.5-1.5 parts of wetting agent OP-10, and 0-30 parts of pure water.

8. The chlorosulfonated polyethylene glove with high comfort according to claim 7, characterized in that, The solid content of the aqueous fluorocarbon emulsion is 40-50%; the solid content of the aqueous hydroxy silicone oil emulsion is 30-50%.

9. A method for preparing a chlorosulfonated polyethylene glove with high comfort as described in any one of claims 1-8, characterized in that, It includes the following steps: S1. Prepare the impregnation latex for forming the inner rubber film; S2. Prepare the dipping latex for generating the middle layer film; S3. Prepare the dipping latex for generating the outer layer film; S4. Clean the mold and dry the mold. Let the mold cool to room temperature and prepare the gloves by three-layer dipping; S5. Cure the dipped gloves, curl the edges, and demold to obtain the product.

10. The preparation method according to claim 9, characterized in that, The specific operation of preparing the gloves by three-layer dipping in S4 includes: S41. Immerse the mold in the dipping latex for generating the inner layer film. The mold temperature is 50 °C, the residence time is 8 - 10 s, the pre-curing temperature is 70 °C, and the pre-curing time is 10 - 12 min; S42. Immerse the mold with the inner layer film in the dipping latex for generating the middle layer film. The mold temperature is 55 °C, the residence time is 6 - 8 s, the pre-curing temperature is 85 °C, and the pre-curing time is 10 - 12 min; S43. Immerse the mold with the inner layer film and the middle layer film in the dipping latex for generating the outer layer film. The mold temperature is 60 °C, the residence time is 4 - 6 s, the pre-curing temperature is 85 °C, and the pre-curing time is 12 - 15 min.