A kind of high-comfort chlorosulfonated polyethylene gloves and preparation method thereof

Abstract

The present invention discloses a high-comfort chlorosulfonated polyethylene glove and a preparation method thereof, and belongs to the technical field of chlorosulfonated polyethylene glove preparation. The chlorosulfonated polyethylene glove is composed of three layers of film, and the three layers of film are an inner film, a middle film and an outer film; the chlorosulfonated polyethylene glove is prepared by an immersion method, and a graft-modified chlorosulfonated polyethylene emulsion is used in the latex for generating the inner film. The present invention graft-modifies chlorosulfonated polyethylene by using N-acryloylmorpholine and N,N-dimethylacrylamide composite monomers. The morpholine ring introduced into the graft-modified CSM emulsion has excellent biocompatibility, can provide a natural antibacterial effect, and effectively reduces the risk of cross infection. The introduction of the dimethylacrylamide group significantly enhances the hydrophilicity of the material, making the breathability of the glove better than that of traditional CSM gloves, and improving the stuffiness and comfort problems when worn for a long time.

Description

Technical Field

[0001] The present invention relates to the technical field of preparation of chlorosulfonated polyethylene gloves, and in particular to a high-comfort chlorosulfonated polyethylene glove and a preparation method thereof. Background Art

[0002] Chlorosulfonated polyethylene (CSM) is a high-performance specialty rubber material. Due to the incorporation of chlorosulfonyl groups into its molecular chain, it exhibits excellent chemical, ozone, oil, and flame resistance, as well as good aging resistance. These properties have led to its widespread application in wire and cable sheathing, sealing products, and chemical protective gloves. Currently, the main methods for producing CSM gloves include dipping, coating, and molding. Dipping is the most commonly used method due to its simplicity, minimal equipment investment, and consistent product quality. The basic principle of this process involves dipping a pretreated glove mold into a prepared CSM latex. The glove thickness is adjusted by controlling the dipping time and lifting speed. The glove is then formed through coagulation, drying, and vulcanization.

[0003] However, existing CSM protective gloves and their manufacturing processes still suffer from numerous technical drawbacks. Due to the relatively thick walls and dense structure of the gloves after dipping, their breathability is often less than ideal, making prolonged wear prone to damp, stuffy hands. Furthermore, gloves made with conventional formulas tend to be stiff and lack flexibility, severely impacting the dexterity and precision of manual manipulation, particularly in work environments requiring delicate manipulation. Furthermore, repeated bending and use of the gloves can lead to stress concentration, particularly at the finger joints, leading to fatigue cracking and a shortened 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 CSM protective glove preparation technology that can maintain excellent protective performance while having good comfort, softness and fatigue resistance. Summary of the Invention

[0005] Based on the problems existing in the background technology, the present invention provides a high-comfort chlorosulfonated polyethylene glove and a preparation method thereof. By chemically modifying the CSM molecular chain, the problems of hard feel and poor comfort are solved at the molecular level, and a multi-layer composite protective glove with excellent performance is prepared.

[0006] The present invention is implemented through the following technical solutions:

[0007] A highly comfortable chlorosulfonated polyethylene glove, the chlorosulfonated polyethylene glove being composed of three layers of film, the three layers of film being an inner film, a middle film, and an outer film;

[0008] The chlorosulfonated polyethylene gloves are prepared by a dipping method, and the latex used to form the inner layer film adopts a grafted modified chlorosulfonated polyethylene emulsion.

[0009] Furthermore, the latex for forming the inner layer film includes the following raw materials in parts by weight: 100-120 parts of grafted 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.

[0010] Furthermore, the specific preparation method of the graft-modified chlorosulfonated polyethylene emulsion is as follows: adjusting the solid content of the chlorosulfonated polyethylene emulsion to 35-40%, heating it to 65-75° C., and adjusting the pH to 7.8-8.2; adding functional monomers N-acryloylmorpholine and N,N-dimethylacrylamide; continuously adding initiators ammonium persulfate and sodium bisulfite, stirring and reacting for 2.5-3.5 hours under nitrogen protection, cooling it to room temperature after the reaction is completed, adjusting the pH to 7.8-8.2, and filtering to remove gel particles to obtain the graft-modified chlorosulfonated polyethylene emulsion.

[0011] 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;

[0012] The amount of ammonium persulfate used is 0.8-1.2% of the mass of chlorosulfonated polyethylene;

[0013] The amount of sodium bisulfite used is 0.1-0.3% of the mass of chlorosulfonated polyethylene.

[0014] Furthermore, the latex for forming the middle layer film includes 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 carboxyl 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 staple fiber, 0.5-1 parts of emulsifier TRITON X-100 and 0-30 parts of pure water.

[0015] Furthermore, the modified aramid staple fiber is an aramid staple fiber treated with a silane coupling agent having a mass concentration of 3%.

[0016] Furthermore, the latex for forming the outer layer film includes 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 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.

[0017] Furthermore, the solid content of the aqueous fluorocarbon emulsion is 40-50%; the solid content of the aqueous hydroxy silicone oil emulsion is 30-50%.

[0018] The present invention also discloses a method for preparing the high-comfort chlorosulfonated polyethylene gloves, comprising the following steps:

[0019] S1. Prepare the latex for dipping the inner film;

[0020] S2. Prepare a latex for dipping the middle layer of the film;

[0021] S3. Prepare an outer film impregnated with latex;

[0022] S4. Clean the mold, dry the mold, let it cool to room temperature, and then perform three-layer dipping to prepare the gloves.

[0023] S5. The gloves after dipping are vulcanized, crimped, and demoulded.

[0024] Furthermore, the specific operations of preparing gloves by three-layer dipping in S4 include:

[0025] S41. The mold is immersed in the latex for dipping to generate the inner film, the mold temperature is 50 ° C, the residence time is 8-10s, the pre-curing temperature is 70 ° C, and the pre-curing time is 10-12min;

[0026] S42. The mold with the inner film is immersed in the dipping latex for generating the middle film, the mold temperature is 55 ° C, the residence time is 6-8s, the pre-curing temperature is 85 ° C, and the pre-curing time is 10-12min;

[0027] S43. Immerse the mold with the inner and middle film layers in the dipping latex used to form the outer film layer. The mold temperature is 60°C, the dwell time is 4-6 seconds, the pre-curing temperature is 85°C, and the pre-curing time is 12-15 minutes.

[0028] Beneficial effects of the present invention:

[0029] 1. The three-layer, differentiated structural design employed in this invention achieves precise functional zoning and coordinated optimization. The grafted modified CSM inner layer provides excellent comfort and bioactive properties, while the middle CSM layer maintains its original superior chemical protection and flame retardancy. The outer layer, modified with a water-based fluorocarbon emulsion and a water-based silicone oil system, achieves excellent wear resistance and surface properties, extending the overall service life compared to traditional single-layer or simple composite gloves. The addition of carboxylated nitrile rubber and EVA emulsion further enhances the toughness and fatigue resistance of the middle layer, making the gloves less susceptible to cracking during repeated bending and stretching, making them particularly suitable for work environments requiring delicate operations.

[0030] 2. This invention graft-modifies chlorosulfonated polyethylene (CSM) using a composite monomer of N-acryloylmorpholine and N,N-dimethylacrylamide, successfully chemically bonding multiple functional groups to the CSM molecular chain, thereby improving the performance shortcomings of traditional CSM gloves. The morpholine ring introduced into the graft-modified CSM emulsion exhibits excellent biocompatibility and provides a natural antibacterial effect, with an inhibition rate of over 95% against common bacteria, effectively reducing the risk of cross-infection. The introduction of dimethylacrylamide groups significantly enhances the material's hydrophilicity, improving the gloves' breathability compared to traditional CSM gloves and alleviating the feeling of stuffiness and discomfort associated with prolonged wear. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further described in detail below with reference to specific embodiments, but the protection scope of the present invention is not limited to the following embodiments.

[0032] The graft-modified chlorosulfonated polyethylene emulsion used in the Examples and Comparative Examples of the present invention was prepared as follows: 1000 parts by weight of chlorosulfonated polyethylene emulsion (40% solids content) was heated to 70°C and the pH adjusted to 8.0; 36 parts of N-acryloylmorpholine and 24 parts of N,N-dimethylacrylamide were added; 4 parts of ammonium persulfate and 0.8 parts of sodium bisulfite as initiators were then added. The mixture was reacted at 70°C for 3 hours under nitrogen with a stirring speed of 250 rpm. After completion of the reaction, the mixture was cooled to room temperature, the pH adjusted to 8.0, and the gel particles were removed by filtration through a 100-mesh sieve. The graft-modified chlorosulfonated polyethylene emulsion was obtained. Testing showed a grafting efficiency of 13.8%, an emulsion solids content of 42%, a pH of 8.0, and a viscosity of 800 mPa·s.

[0033] Example 1:

[0034] A method for preparing high-comfort chlorosulfonated polyethylene gloves comprises the following steps:

[0035] S1. Preparation of the dipping latex for forming the inner film: 100 parts by weight of the grafted modified chlorosulfonated polyethylene emulsion were added with 15 parts of polyethylene glycol 400, 4 parts of magnesium oxide, 1 part of accelerator DM, and 1 part of wetting agent OP-10; polyethylene glycol 400 was first dissolved in pure water, and then magnesium oxide and accelerator were evenly dispersed in this solution. Finally, the dispersion was slowly added to the grafted modified CSM emulsion, stirred for 30 minutes, and the final solid content was adjusted to 45% with pure water;

[0036] S2. Preparation of a dipping latex for forming a middle layer film: 100 parts by weight of a 38% solid content chlorosulfonated polyethylene emulsion, 20 parts of a 45% solid content carboxylated nitrile rubber emulsion, 10 parts of a 52% solid content EVA emulsion, 4 parts of magnesium oxide, 4 parts of zinc oxide, 1.5 parts of an accelerator CZ, 0.2 parts of an accelerator TMTD, 4 parts of aramid staple fibers treated with a 3% silane coupling agent, and 0.8 parts of an emulsifier TRITON X-100; the solid additives were pre-dispersed in water to form a slurry, and then the emulsion components were added sequentially, stirred and dispersed for 30 minutes, and the final solid content was adjusted to 48% with pure water;

[0037] S3. Prepare the dipping latex for the outer film: 100 parts by weight of 38% solids chlorosulfonated polyethylene emulsion, 12 parts N330 carbon black, 5 parts white carbon black, 6 parts aqueous fluorocarbon emulsion, 4 parts magnesium oxide, 4 parts zinc oxide, 1.2 parts accelerator TBzTD, 2 parts polycarboxylate dispersant, 5 parts 35% solids aqueous hydroxy silicone oil emulsion, 1.5 parts nonionic silicone surfactant, 0.3 parts carboxymethyl cellulose, and 1 part wetting agent OP-10. Pre-disperse the carbon black and white carbon black in water, then add the other components in sequence, stirring and dispersing for 30 minutes. Adjust the final solids content to 47% with purified water.

[0038] S4. Clean the mold, dry it, let it cool to room temperature, and then perform three-layer dipping to prepare the gloves:

[0039] S41. The mold is immersed in the dipping latex to generate the inner film, the mold temperature is 50 ° C, the residence time is 9s, the pre-curing temperature is 70 ° C, and the pre-curing time is 10min;

[0040] S42. The mold with the inner film is immersed in the dipping latex for generating the middle film, the mold temperature is 55 ° C, the residence time is 7s, the pre-curing temperature is 85 ° C, and the pre-curing time is 11min;

[0041] S43. The mold with the inner and middle film layers is immersed in the dipping latex for generating the outer film layer. The mold temperature is 60°C, the dwell time is 5s, the pre-curing temperature is 85°C, and the pre-curing time is 13min.

[0042] S5. After the dipping process, vulcanize the gloves by uniformly heating them from room temperature to 150°C over 35 minutes, maintaining the temperature at 150°C for 30 minutes, then cooling them to 130°C and maintaining the temperature for 12 minutes. After vulcanization, curl the edges and demold the gloves.

[0043] Example 2:

[0044] A method for preparing high-comfort chlorosulfonated polyethylene gloves comprises the following steps:

[0045] Steps S1-S3: Preparation of three layers of latex:

[0046] Inner layer latex: by weight, 110 parts of grafted 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 the final solid content is adjusted to 45% with pure water.

[0047] 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 parts of accelerator TMTD, 5 parts of modified aramid staple fiber, 0.9 parts of emulsifier TRITON X-100, and the final solid content is adjusted to 45% with pure water.

[0048] 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 hydroxy silicone oil emulsion (solid content 40%), 1.8 parts of non-ionic silicone surfactant, 0.4 parts of carboxymethyl cellulose, 1.3 parts of wetting agent OP-10, and the final solid content is adjusted to 48% with pure water.

[0049] Steps S4-S5: impregnation and vulcanization, same as in Example 1.

[0050] Comparative Example 1:

[0051] The difference between this comparative example and Example 1 is that an ungrafted chlorosulfonated polyethylene emulsion is used in the preparation of the dipping latex for forming the inner layer film. The inner layer latex comprises, by weight, 100 parts of chlorosulfonated polyethylene emulsion (solid content 42%), 15 parts of polyethylene glycol 400, 4 parts of magnesium oxide, 1 part of accelerator DM, and 1 part of wetting agent OP-10; the final solid content is adjusted to 45% with pure water; and the remaining steps are the same as in Example 1.

[0052] Comparative Example 2:

[0053] The difference between this comparative example and Example 1 is that the graft-modified chlorosulfonated polyethylene emulsion is modified with a single functional monomer, that is, only N-acryloylmorpholine is used to graft-modify the CSM, and the amount of N-acryloylmorpholine used is 60 parts (accounting for 15% of the weight of the chlorosulfonated polyethylene). All other conditions are the same as in Example 1.

[0054] Comparative Example 3:

[0055] The difference between this comparative example and Example 1 is that the graft-modified chlorosulfonated polyethylene emulsion is modified with a single functional monomer, that is, only N,N-dimethylacrylamide is used to graft-modify CSM, and the amount of N,N-dimethylacrylamide used is 60 parts (accounting for 15% of the weight of the chlorosulfonated polyethylene). The rest is the same as in Example 1.

[0056] Comparative Example 4:

[0057] The difference between this comparative example and Example 1 is that the aramid staple fibers treated with 3% silane coupling agent are not included in the dipping latex for preparing the middle layer film, and the rest are the same as in Example 1.

[0058] Comparative Example 5:

[0059] The difference between this comparative example and Example 1 is that only double-layer structure gloves are prepared, including an inner film and an outer film, but not a middle film. The formulas of the inner film and the outer film are the same as those in Example 1, and the dipping process is correspondingly adjusted to two layers.

[0060] Test Example 1:

[0061] The chlorosulfonated polyethylene gloves prepared in Examples 1-2 and Comparative Examples 1-5 were subjected to performance tests. The test results are shown in Table 1.

[0062] Table 1 Performance test results of chlorosulfonated polyethylene gloves prepared in Examples and Comparative Examples

[0063] project Test standards 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 Spend 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 Resistant to chemical penetration ASTM F739 Breakthrough time (min) >480 >480 >480 >480 >480 >480 >360 Fatigue life ASTM F392 Thousands of bends 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 Antimicrobial persistence Tested after 100 washes % 94 95 - 93 - 94 94

[0064] As shown in Table 1, the chlorosulfonated polyethylene gloves prepared in Examples 1 and 2 of the present invention exhibit significantly superior performance to those in the comparative examples. Comparative Example 1, which lacks graft modification, exhibits higher hardness than the chlorosulfonated polyethylene in Examples 1 and 2, hindering the improvement in softness and wear comfort. Furthermore, the gloves prepared in Comparative Example 1 lack antibacterial properties. Comparative Examples 2 and 3, respectively, employ single N-acryloylmorpholine and N,N-dimethylacrylamide modifications, resulting in gloves with performance intermediate between Comparative Example 1 and the examples. Single N-acryloylmorpholine modification (Comparative Example 2) exhibits good antibacterial properties, but the reduction in hardness is limited. N,N-dimethylacrylamide modification (Comparative Example 3) demonstrates good softness, but its antibacterial effect is significantly insufficient. The combined modification of N-acryloylmorpholine and N,N-dimethylacrylamide in the present invention achieves both excellent antibacterial properties and good softness, demonstrating a significant synergistic effect. Comparative Example 4, which eliminates the modified aramid staple fibers, exhibits reduced tear strength and a fatigue life of 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, which is 15.2% lower than that of Example 1; the tear strength is 58 N / mm, which is 29.3% lower than that of Example 1; the puncture resistance is only 22.4 N, which is 21.4% lower than that of Example 1; and the fatigue life is only 50,000 bending times, which is far lower than the 85,000-88,000 times of the three-layer structure.

[0065] Test Example 2:

[0066] The chlorosulfonated polyethylene gloves prepared in Examples 1-2 and Comparative Examples 1-5 were tested for comfort and usability.

[0067] 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%.

[0068] Test the following:

[0069] 1. Wearing comfort: Volunteers will rate their subjective comfort after wearing the headset (1-5 points);

[0070] 2. Operational flexibility: Conduct fine operation tests (grasping small objects) and grasping tests to evaluate operational convenience;

[0071] 3. Breathability and comfort: Wear the device for four hours continuously, and evaluate the feeling of stuffiness and sweating every hour;

[0072] 4. Overall satisfaction: A comprehensive satisfaction evaluation will be conducted after the test.

[0073] Rating criteria: 5 points - very satisfied, 4 points - satisfied, 3 points - average, 2 points - dissatisfied, 1 point - very dissatisfied.

[0074] The test results are shown in Table 2.

[0075] Table 2 Test results of comfort and usability of chlorosulfonated polyethylene gloves prepared in Examples and Comparative Examples

[0076] 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 Operational 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

[0077] The results in Table 2 show that Examples 1 and 2 significantly outperformed the Comparative Example in all comfort indicators, particularly in terms of breathability and comfort. Comparative Example 1, due to the lack of grafting modification technology, exhibited significantly lower comfort indicators. Comparative Examples 2 and 3, which utilize single monomer modification, showed some improvement in performance, but were still inferior to the dual-monomer composite modification example. The three-layer design offers more balanced overall performance compared to the two-layer structure.

[0078] Feedback from volunteers showed that the gloves prepared by the present invention significantly reduced the feeling of stuffiness when worn for a long time, had good operational flexibility, and the overall wearing experience was significantly better than that of traditional CSM gloves.

[0079] Finally, it should be noted that the above-described embodiments merely represent several implementation methods of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made by a person skilled in the art without departing from the spirit of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention should be based on the appended claims.

Claims

1. A high-comfort chlorosulfonated polyethylene glove, characterized in that: The chlorosulfonated polyethylene gloves are composed of three layers of film, which are an inner film, a middle film and an outer film. The chlorosulfonated polyethylene gloves are prepared by dipping method, and the latex used to form the inner layer film adopts grafted modified chlorosulfonated polyethylene emulsion; The latex for forming the inner layer film comprises the following raw materials in parts by weight: 100-120 parts of grafted 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; The specific preparation method of the graft-modified chlorosulfonated polyethylene emulsion is as follows: adjusting the solid content of the chlorosulfonated polyethylene emulsion to 35-40%, heating it to 65-75° C., and adjusting the pH to 7.8-8.2; adding functional monomers N-acryloylmorpholine and N,N-dimethylacrylamide; continuously adding initiators ammonium persulfate and sodium bisulfite, stirring and reacting for 2.5-3.5 hours under nitrogen protection; cooling to room temperature after the reaction is completed, adjusting the pH to 7.8-8.2, and filtering to remove gel particles to obtain the graft-modified chlorosulfonated polyethylene emulsion.

2. The high-comfort chlorosulfonated polyethylene gloves according to claim 1, 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 used is 0.8-1.2% of the mass of chlorosulfonated polyethylene; The amount of sodium bisulfite used is 0.1-0.3% of the mass of chlorosulfonated polyethylene.

3. The high-comfort chlorosulfonated polyethylene gloves according to claim 1, characterized in that: The latex for forming the middle layer film includes 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 carboxyl 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 staple fiber, 0.5-1 parts of emulsifier TRITON X-100 and 0-30 parts of pure water.

4. The high-comfort chlorosulfonated polyethylene gloves according to claim 3, characterized in that: The modified aramid staple fiber is an aramid staple fiber treated with a silane coupling agent having a mass concentration of 3%.

5. The high-comfort chlorosulfonated polyethylene gloves according to claim 1, characterized in that: The latex for forming the outer layer film includes 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 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.

6. The high-comfort chlorosulfonated polyethylene gloves according to claim 5, characterized in that: The solid content of water-based fluorocarbon emulsion is 40-50%; the solid content of water-based hydroxy silicone oil emulsion is 30-50%.

7. A method for preparing the high-comfort chlorosulfonated polyethylene gloves according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Prepare the latex for dipping the inner film; S2. Prepare a latex for dipping the middle layer of the film; S3. Prepare an outer film impregnated with latex; S4. Clean the mold, dry the mold, let it cool to room temperature, and then perform three-layer dipping to prepare the gloves. S5. The gloves after dipping are vulcanized, crimped, and demoulded.

8. The preparation method according to claim 7, characterized in that The specific operations of three-layer dipping in S4 to prepare gloves include: S41. The mold is immersed in the latex for dipping to generate the inner film, the mold temperature is 50 ° C, the residence time is 8-10s, the pre-curing temperature is 70 ° C, and the pre-curing time is 10-12min; S42. The mold with the inner film is immersed in the dipping latex for generating the middle film, the mold temperature is 55 ° C, the residence time is 6-8s, the pre-curing temperature is 85 ° C, and the pre-curing time is 10-12min; S43. Immerse the mold with the inner and middle film layers in the dipping latex used to form the outer film layer. The mold temperature is 60°C, the dwell time is 4-6 seconds, the pre-curing temperature is 85°C, and the pre-curing time is 12-15 minutes.