Water-based butyl composite liner glove and preparation method thereof

Abstract

The invention belongs to the technical field of protective gloves, and particularly relates to a water-based butyl composite liner glove and a preparation method thereof.The water-based butyl composite liner glove comprises a glove blank and a butyl rubber layer, the glove blank is formed by weaving fiber materials, and the fiber materials comprise nylon fibers, bamboo fibers and a bacteriostatic agent; the butyl rubber layer is combined with the outer surface of the glove blank through an infiltration process to form an integrated structure, and butyl rubber components of the butyl rubber layer comprise butyl latex, a surfactant, a vulcanizing agent, a composite accelerant, a tackifier and deionized water. The glove systematically solves the technical problems that a traditional butyl glove cannot achieve both protection performance and comfort, is poor in structural stability, low in production efficiency and the like, has the core technical advantages of being high in protection, high in comfort, stable in structure and easy in mass production, remarkably improves the market competitiveness of a product, and is suitable for popularization and application. And a more reliable and more practical protection solution is provided for industrial protection, laboratory operation and other scenes.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of protective gloves, and particularly relates to a water-based butyl composite inner liner glove and a preparation method. BACKGROUND

[0002] Butyl rubber gloves have become indispensable labor protection products in industrial production, laboratory operation, chemical protection and other scenes due to their excellent resistance to strong acid, strong base, organic solvent erosion and air tightness, and the protection performance is directly related to the safety of the hands of the operating personnel. With the continuous upgrading of protection needs, butyl protective gloves on the market are mainly divided into two categories: no inner liner type and with inner liner type, but both have significant technical shortcomings, and it is difficult to balance protection reliability and wearing practicality: no inner liner butyl gloves have basic anti-chemical performance, but the butyl rubber itself has insufficient puncture resistance and wear resistance, and long-term use can easily lead to protection failure due to damage; at the same time, butyl rubber has poor self-adhesion, and the fit is poor when directly worn, and it does not have the function of air permeability and sweat absorption, and long-term wearing can easily cause stuffiness and discomfort, affecting work efficiency; and butyl gloves with inner liner (or called liner) usually use knitted cotton or chemical fiber glove blanks as the inner liner, and the butyl rubber layer is coated outside, which can improve the wearing experience, but there are problems such as poor combination of the inner liner and the butyl rubber layer, easy blistering and peeling, and complex vulcanization process and dehydration difficulties.

[0003] There are further researches on butyl gloves with inner liner in the prior art, such as patent document CN112048917A - Preparation method of double-layer butyl anti-chemical glove with liner, which optimizes the butyl rubber formula and two-pass different viscosity dipping (low-temperature pre-vulcanization + stage vulcanization) process, aiming to improve the combination of the rubber layer and the liner and reduce the blistering, but still uses pure cotton or ordinary knitted chemical fiber glove blanks, without additional functions such as antibacterial and air permeability, which cannot meet the demand for multifunctionality of modern protection; patent document CN107263900A - Preparation method of butyl nylon liner glove resistant to acid and alkali, which adopts a complex process of dipping coagulant, multiple dipping, and repeated drying and vulcanization, has the problems of difficult dehydration, easy blistering, low efficiency, unstable product qualification rate, and high cost.

[0004] In summary, although the prior art has researched to optimize the formula, improve the dipping and vulcanization process, and try to improve the protection performance, the results are still limited to the improvement of specific links, and the fundamental problems such as single function of the inner liner, complex process, and difficult production yield and cost control have not been systematically solved, resulting in difficulty in obtaining a butyl rubber glove with multifunctional additional properties such as long-term protection, stable fit, and comfortable air permeability. Therefore, a new technical solution is needed to solve the above technical problems. SUMMARY

[0005] The purpose of this invention is to provide a water-based butyl composite liner glove and its preparation method, in order to solve the problems mentioned in the background art. The current liner-lined butyl gloves are still limited to improvements in specific aspects and have not systematically solved the fundamental problems such as the single function of the liner, complex process, and difficulty in production yield and cost control. As a result, it is difficult to obtain a butyl rubber glove that has multiple additional properties such as long-lasting protection, stable fit, comfort and breathability.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a water-based butyl composite inner liner glove, comprising a glove blank and a butyl rubber layer, wherein the glove blank is woven from a fiber material, the fiber material comprising nylon fiber, bamboo fiber and antibacterial agent, the butyl rubber layer being bonded to the outer surface of the glove blank through an impregnation process to form an integrated structure, and the butyl rubber component of the butyl rubber layer comprising butyl latex, surfactant, vulcanizing agent, composite accelerator, tackifier and deionized water.

[0007] Furthermore, the fiber material, by weight percentage of its components, comprises: 60-80% nylon fiber, 10-20% bamboo fiber, and 2-5% antibacterial agent.

[0008] Furthermore, the butyl rubber compound comprises, by mass parts: 95-115 parts butyl latex, 2-4 parts surfactant, 1-3 parts vulcanizing agent, 2-5 parts compounding accelerator, 1-3 parts tackifier, and 30-50 parts deionized water, wherein the tackifier is added in two parts.

[0009] The specific steps for preparing the above-described water-based butyl composite inner liner gloves are as follows: S1. Preparation of glove blank: First, nylon fiber, bamboo fiber and antibacterial agent fiber material are mixed and combed, and then woven into glove blank with a thickness of 0.3 to 0.8 mm by textile process. The antibacterial agent is water chestnut extract or bamboo fiber with lignin nanoparticles attached to the surface. The surface of the glove blank is uniformly distributed with micron-sized air pores with a pore size of 5 to 20 μm. S2. Preparation of the first butyl rubber compound: First, pre-vulcanize the butyl latex at 60-65℃ for 60-90 minutes. Then, add surfactant, vulcanizing agent, composite accelerator, tackifier, and deionized water to the pre-vulcanized butyl latex. After stirring evenly, a first butyl rubber compound with a viscosity of 1200-1800 mPa·s is obtained. The amount of tackifier added is 0.5-1%. The surfactant is one or more of fatty acid salts, sodium dodecyl sulfate, and alkylphenol polyoxyethylene ether. The vulcanizing agent is sulfur. The tackifier is sodium hydroxymethyl cellulose. The composite accelerator is composed of accelerator A and accelerator B in a mass ratio of 1:1-2. Accelerator A is one of 2-mercaptobenzothiazole, dibenzothiazole disulfide, and N-tert-butyl-2-benzothiazole sulfenamide. Accelerator B is one of N-cyclohexyl-2-benzothiazole sulfenamide, diphenylguanidine, and zinc oxide. S3. Prepare the second butyl rubber compound: Add a thickener to the first butyl rubber compound prepared in S2 to obtain a second butyl rubber compound with a viscosity of 2800-3500 mPa·s, wherein the amount of thickener added is 1.5-2.5%, and the thickener is sodium hydroxymethyl cellulose; S4. Mold fitting: Fit the glove blank woven in S1 onto the hand mold and pre-treat it with hot air at 80-100℃ for 15-30 minutes; S5, First impregnation: Immerse the preheated glove blank in the first butyl rubber compound prepared in S2 for 10-20 seconds, and drip the rubber evenly. S6. Drying: Dry at 60-70℃ for 20-30 minutes; S7. Second immersion: Immerse the dried gloves in the second butyl rubber compound prepared in S3 for 15-25 seconds, and drip the rubber evenly. S8. Vulcanization: First, vulcanize at a low temperature of 100-110℃ for 30-40 minutes, then vulcanize at a high pressure of 120-130℃ and 0.3-0.5MPa for 20-30 minutes. S9. Drying and demolding: Dry at 80-90℃ under normal pressure until the moisture content is ≤1%, then demold to obtain the final product, water-based butyl composite inner gloves.

[0010] Furthermore, the surface of the butyl rubber layer of the water-based butyl composite inner liner glove is also provided with an anti-slip texture with a Shore A hardness of 55 to 65 degrees.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes a glove blank woven from nylon fiber, bamboo fiber, and antibacterial agents, giving it a multi-functional synergistic system of "high strength + breathability and sweat absorption + antibacterial and hygienic properties." This improves wearing comfort by over 40% and achieves an antibacterial rate of over 90%. Furthermore, by combining a butyl rubber compound containing butyl latex, surfactants, vulcanizing agents, composite accelerators, tackifiers, and deionized water through an impregnation process, the two materials form an integrated structure. This significantly enhances the bonding force between the inner liner and the butyl rubber layer, resulting in a peel force ≥3N / cm between the inner liner and the butyl rubber layer. This effectively prevents peeling during use, improving the overall stability and durability of the glove. Simultaneously, it increases the glove's puncture resistance by over 25N and reduces abrasion loss to less than 10%. This allows the glove to bend at -20℃ without cracking and maintain stable performance even in extreme environments, extending its service life by over 30% compared to traditional butyl gloves, achieving a balance between protective performance and longevity. Therefore, through multi-dimensional innovation in structural design, material selection, and process optimization, this invention systematically solves the technical pain points of traditional butyl gloves, such as the inability to achieve both protection and comfort, poor structural stability, and low production efficiency. It forms the core technical advantages of strong protection, high comfort, stable structure, and easy mass production, significantly improving the market competitiveness of the product and providing a more reliable and practical protection solution for industrial protection, laboratory operations, and other scenarios. 2. This invention uses a blend of nylon fiber, bamboo fiber, and antibacterial agent as the fiber material for the glove blank, forming a multifunctional synergistic system of "strength-breathability-hygiene". Nylon fiber provides excellent tensile strength and puncture resistance, solving the problems of insufficient strength and easy damage of existing pure cotton linings. Bamboo fiber, with its natural hollow fiber structure and micron-level breathable pores (breathability 50-80 mL / (cm²・min)), improves the breathability and sweat absorption of the gloves by more than 40%, effectively solving the problems of "stuffy and uncomfortable" linerless butyl gloves and "insufficient breathability" of traditional lined gloves. The introduction of antibacterial agent fills the gap of "no hygienic protection" in traditional butyl gloves, effectively avoiding skin irritation and environmental pollution caused by traditional chemical antibacterial agents, as well as bacterial growth caused by long-term wear. It is especially suitable for long-term work scenarios (such as laboratories and industrial production lines), which is in line with the environmental protection development trend of modern protective products. The blend of the above three materials can upgrade the composite lining from a single functional layer to a multifunctional core layer integrating strength, breathability, and hygiene. 3. This invention reduces the use of organic solvents by employing water-based butyl rubber, thereby lowering environmental pollution and health hazards to operators during production. Through a synergistic process design of secondary impregnation and secondary vulcanization, it ensures uniform rubber layer thickness while eliminating air bubbles through low-temperature pre-vulcanization and strengthening the structural strength through high-pressure vulcanization, increasing the finished product qualification rate to ≥95%, a significant improvement over traditional multiple impregnation and repeated drying processes (qualification rate approximately 80%). Furthermore, standardized process parameter design (such as impregnation time, temperature, and viscosity range) effectively reduces the risk of human intervention during production, enabling industrial-scale mass production without complex equipment modifications and effectively controlling production costs. 4. The butyl rubber compound of the present invention, after optimization of the pre-vulcanization process at 60-65℃ and the secondary vulcanization process of "low-temperature vulcanization + high-pressure vulcanization", combined with the catalytic effect of the composite accelerator (accelerator A and B are compounded in a ratio of 1:1-2), significantly improves the crosslinking density of the rubber layer. This allows the rubber layer of the glove to retain more than 85% of its tensile strength after immersion in 68% sulfuric acid at 70℃ for 10 hours, and achieves a chemical penetration resistance rating of Class A (≥480 min). It can be stably used in complex protective scenarios such as strong acids, strong alkalis, and organic solvents. At the same time, the surface of the butyl rubber layer is provided with an anti-slip texture with a Shore A hardness of 55-65 degrees, further expanding the safety of the glove in wet and slippery environments. Attached Figure Description

[0012] Figure 1 This is a photograph of the water-based butyl composite inner liner glove of the present invention. Figure 2 This is a graph showing the acetonitrile permeation rate of the present invention. Figure 3 This is a graph showing the dichloromethane permeation rate of the present invention. Figure 4 This is a graph showing the toluene permeation rate of the present invention. Figure 5 This is a graph showing the diethylamine permeation rate of the present invention. Figure 6 This is a graph showing the pyridine permeation rate of the present invention. Figure 7 This is a permeation rate curve of 99% acetic acid according to the present invention; Figure 8 This is a graph showing the isopropanol permeation rate of the present invention. Figure 9 This is a graph showing the cyclohexanol permeation rate of the present invention. Figure 10 This is a graph showing the formic acid permeation rate of the present invention. Figure 11 This is a permeation rate curve of 65% nitric acid according to the present invention; Figure 12This is a permeation rate curve of 25% ammonia water according to the present invention; Figure 13 This is a permeation rate curve of 40% sodium hydroxide according to the present invention; Figure 14 This is a graph showing the permeation rate of 36% hydrochloric acid according to the present invention. Figure 15 This is a permeation rate curve of tetrahydrofuran according to the present invention; Figure 16 This is a graph showing the xylene permeation rate of the present invention. Figure 17 This is a chloroform permeation rate curve of the present invention; Figure 18 This is a graph showing the triethylamine permeation rate of the present invention. Figure 19 This is a graph showing the diethyl ether permeation rate of the present invention. Figure 20 This is a graph showing the hexane permeation rate of the present invention. Figure 21 This is a graph showing the n-heptane permeation rate of the present invention. Detailed Implementation

[0013] The following examples are used to further illustrate the content of the present invention and do not limit the application of the present invention (all percentages and parts are mass parts). Example 1:

[0014] Please see Figure 1 This embodiment provides a water-based butyl composite inner liner glove, the specific preparation steps of which are as follows: First, prepare the glove blank (i.e., the glove liner): Step 1: Select a recipe Nylon fiber: 70% Bamboo fiber: 25% Antibacterial agent: 5% water chestnut extract Step Two: Textile After the above formula is mixed and combed, it is woven into a glove blank with a thickness of 0.5 mm, a surface micron-level air pore diameter of 10 μm, and an air permeability of 65 mL / (cm²・min) by a glove knitting machine.

[0015] The butyl rubber compound also needs to be prepared simultaneously with the preparation of the glove blank. Step 1: Select a formula Butyl latex: 100 parts Surfactant: 3 parts (a mixture of fatty acid salts and sodium lauryl sulfate) Vulcanizing agent: 2 parts sulfur Composite accelerator: Accelerator A (dibenzothiazole disulfide) 1.5 parts + Accelerator B (diphenylguanidine) 2 parts (mass ratio 1:1.33) Tackifier: 2 parts sodium carboxymethyl cellulose Deionized water: 40 parts Step 2, Modulation The above butyl latex was pre-cured at 62°C for 75 minutes, and the above surfactant, vulcanizing agent, composite accelerator and 0.8% tackifier (relative to the total mass of the rubber compound) were added. The mixture was stirred evenly to obtain a first butyl rubber compound with a viscosity of 1500 mPa·s. 2% tackifier was added to the first butyl rubber compound to obtain a second butyl rubber compound with a viscosity of 3200 mPa·s.

[0016] Secondly, preheating of the glove blank: The glove blank prepared above is placed into the hand mold and preheated in hot air at 90°C for 20 minutes (i.e., preheating).

[0017] Furthermore, the glove blank is impregnated and vulcanized: the preheated glove blank is impregnated with the first butyl rubber compound for 15 seconds, and after the rubber is dripped and homogenized, it is baked at 60-70℃ for 25 minutes; then it is impregnated with the second butyl rubber compound for 20 seconds, and after the rubber is dripped and homogenized, it is first vulcanized at a low temperature of 105℃ for 35 minutes, and then vulcanized at a high pressure of 125℃ and 0.4MPa for 25 minutes. Then, drying and demolding: the vulcanized gloves are dried at 85°C under normal pressure until the moisture content is ≤1%. After demolding, the surface of the butyl rubber layer forms an anti-slip texture with a Shore A hardness of 60.

[0018] Finally, the performance of the prepared water-based butyl composite inner liner gloves was tested, and the test results are shown in the table below. Example 2:

[0019] Please see Figure 1 This embodiment provides a water-based butyl composite inner liner glove, the specific preparation steps of which are as follows: First, prepare the glove blank (i.e., the glove liner): Step 1: Select a formula Nylon fiber: 75% Bamboo fiber: 20% Antibacterial agent: 5% bamboo fiber with lignin nanoparticles attached to its surface. Step Two: Textile After the above formula is mixed and combed, it is woven into a glove blank with a thickness of 0.5 mm, a surface micron-level air pore diameter of 8 μm, and an air permeability of 60 mL / (cm²・min) by a glove knitting machine.

[0020] The butyl rubber compound also needs to be prepared simultaneously with the preparation of the glove blank. Step 1: Select a formula Butyl latex: 100 parts Surfactant: 3 parts (a mixture of fatty acid salts and sodium lauryl sulfate) Vulcanizing agent: 2 parts sulfur Composite accelerator: Accelerator A (dibenzothiazole disulfide) 1.5 parts + Accelerator B (diphenylguanidine) 2 parts (mass ratio 1:1.33) Tackifier: 2 parts sodium carboxymethyl cellulose Deionized water: 40 parts Step 2, Modulation The above butyl latex was pre-cured at 62°C for 75 minutes. The above surfactant, vulcanizing agent, composite accelerator and 0.8% tackifier (relative to the total mass of the rubber compound) were added and stirred evenly to obtain a first butyl rubber compound with a viscosity of 1500 mPa·s. 2% tackifier was added to the first butyl rubber compound to obtain a second butyl rubber compound with a viscosity of 3500 mPa·s.

[0021] Secondly, preheating of the glove blank: The glove blank prepared above is placed into the hand mold and preheated in hot air at 90°C for 20 minutes (i.e., preheating).

[0022] Furthermore, the glove blank is impregnated and vulcanized: the preheated glove blank is impregnated with the first butyl rubber compound for 15 seconds, and after the rubber is dripped and homogenized, it is baked at 60-70℃ for 25 minutes; then it is impregnated with the second butyl rubber compound for 20 seconds, and after the rubber is dripped and homogenized, it is first vulcanized at a low temperature of 105℃ for 35 minutes, and then vulcanized at a high pressure of 125℃ and 0.4MPa for 25 minutes. Then, drying and demolding: the vulcanized gloves are dried at 85°C under normal pressure until the moisture content is ≤1%. After demolding, the surface of the butyl rubber layer forms an anti-slip texture with a Shore A hardness of 60.

[0023] Finally, the performance of the prepared water-based butyl composite inner liner gloves was tested, and the test results are shown in the table below. Example 3:

[0024] Please see Figure 1 This embodiment provides a water-based butyl composite inner liner glove, the specific preparation steps of which are as follows: First, prepare the glove blank (i.e., the glove liner): Step 1: Select a formula Nylon fiber: 70% Bamboo fiber: 25% Antibacterial agent: 5% water chestnut extract Step Two: Textile After the above formula is mixed and combed, it is woven into a glove blank with a thickness of 0.5 mm, a surface micron-level air pore diameter of 10 μm, and an air permeability of 65 mL / (cm²・min) by a glove knitting machine.

[0025] The butyl rubber compound also needs to be prepared simultaneously with the preparation of the glove blank. Step 1: Select a formula Butyl latex: 100 parts Surfactant: 3 parts (a mixture of fatty acid salts and sodium lauryl sulfate) Vulcanizing agent: 2 parts sulfur Composite accelerator: Accelerator A (dibenzothiazole disulfide) 1.5 parts + Accelerator B (diphenylguanidine) 2 parts (mass ratio 1:1.33) Tackifier: 2 parts sodium carboxymethyl cellulose Deionized water: 40 parts Step 2, Modulation The above butyl latex was pre-cured at 62°C for 75 minutes. The above surfactant, vulcanizing agent, composite accelerator and 0.8% tackifier (relative to the total mass of the rubber compound) were added and stirred evenly to obtain a first butyl rubber compound with a viscosity of 1500 mPa·s. 2% tackifier was added to the first butyl rubber compound to obtain a second butyl rubber compound with a viscosity of 3500 mPa·s.

[0026] Secondly, preheating of the glove blank: The glove blank prepared above is placed into the hand mold and preheated in hot air at 90°C for 20 minutes (i.e., preheating).

[0027] Furthermore, the glove blank is impregnated and vulcanized: the preheated glove blank is immersed in the first butyl rubber compound for 15 seconds, and after the rubber is dripped and homogenized, it is baked at 60-70℃ for 25 minutes; then it is immersed in the second butyl rubber compound for 20 seconds, and after the rubber is dripped and homogenized, it is first vulcanized at a low temperature of 105℃ for 35 minutes, and then vulcanized at a high pressure of 120℃ and 0.4MPa for 30 minutes. Then, drying and demolding: the vulcanized gloves are dried at 85°C under normal pressure until the moisture content is ≤1%. After demolding, the surface of the butyl rubber layer forms an anti-slip texture with a Shore A hardness of 60.

[0028] Finally, the performance of the prepared water-based butyl composite inner liner gloves was tested, and the test results are shown in the table below.

[0029] Comparative Example 1: The glove blank provided in Comparative Example 1 is woven from a single pure cotton fiber and has a thickness of 0.5 mm. It has no micron-level air pores, an air permeability of 15 mL / (cm²・min), and no antibacterial agent added. The formulation of the butyl rubber compound provided in Comparative Example 1 is as follows: Butyl latex: 100 parts Surfactant: 3 parts Vulcanizing agent: 2 parts sulfur Accelerator: 3.5 parts of a single accelerator (dibenzothiazole disulfide). No tackifier Deionized water: 40 parts; The preparation steps provided in Comparative Example 1 are as follows: Pure cotton glove blanks are directly molded without hot air pretreatment; The rubber compound was not pre-cured and was only impregnated once (and the viscosity of the rubber compound was 2500 mPa·s). Vulcanization process: Direct high-temperature vulcanization at 120℃ for 40 minutes; Post-treatment: Dry at 85℃ under normal pressure until the moisture content is ≤1%.

[0030] Finally, the prepared gloves were subjected to performance tests, and the test results are shown in the table below.

[0031] The following is a statistical table of the performance test results of the gloves prepared in Examples 1-3 and Comparative Example 1: ; As shown in the table above, this invention uses a glove blank woven from nylon fiber, bamboo fiber, and antibacterial agent, combined with butyl rubber material containing butyl latex, surfactant, vulcanizing agent, composite accelerator, tackifier, and deionized water. Through an impregnation process, the two are integrated into a single structure, significantly enhancing the bonding force between the inner liner and the butyl rubber layer. This results in a peel force of ≥3N / cm between the inner liner and the butyl rubber layer, effectively preventing peeling during use and improving the overall stability and durability of the glove. Simultaneously, it increases the glove's puncture resistance by more than 25N and reduces abrasion loss to less than 10%. This allows the glove to bend at -20℃ without cracking and maintain stable performance even in extreme environments, extending its service life by more than 30% compared to traditional butyl gloves, achieving a balance between protective performance and longevity.

[0032] The water-based butyl composite inner liner gloves prepared using the technical solution of this invention were subjected to chemical penetration resistance testing (test according to EN 16523-1:2015+A1:2018 standard). The test method was based on EN ISO 374-1, and the test results are shown in the table below: ; Test instructions: Standard permeation rate (NPR): 1 microgram / cm² / minute; Sampling location: palm; Test temperature: 23±1℃; Performance rating criteria: The lowest individual test result for each chemical.

[0033] Permeability rating description: When the penetration performance level is 1, the measured breakthrough time is >10 minutes; When the penetration performance level is 2, the measured breakthrough time is >30 minutes; When the permeability rating is 3, the measured breakthrough time is >60 minutes; When the permeability rating is 4, the measured breakthrough time is >120 minutes; When the permeability rating is 5, the measured breakthrough time is >240 minutes; When the permeability rating is 6, the measured breakthrough time is >480 minutes.

[0034] From the table above and Figures 2-21 ( Figures 2-21 As shown in the permeation rate curves of chemicals 1-20 in the table above, the water-based butyl composite inner liner gloves prepared by this invention have excellent permeation performance in chemicals such as acetonitrile, pyridine, 99% acetic acid, isopropanol, cyclohexanol, formic acid, 65% nitric acid, 25% ammonia, 40% sodium hydroxide, and 36% hydrochloric acid.

Claims

1. A water-based butyl composite inner liner glove, comprising a glove blank and a butyl rubber layer, characterized in that, The glove blank is woven from fiber material, the components of which include nylon fiber, bamboo fiber and antibacterial agent. The butyl rubber layer is bonded to the outer surface of the glove blank through an impregnation process to form an integrated structure. The butyl rubber material components of the butyl rubber layer include butyl latex, surfactant, vulcanizing agent, composite accelerator, tackifier and deionized water.

2. The water-based butyl composite inner liner glove according to claim 1, characterized in that, The fiber material, by weight percentage, consists of: 60-80% nylon fiber, 10-20% bamboo fiber, and 2-5% antibacterial agent.

3. The water-based butyl composite inner liner glove according to claim 1, characterized in that, The butyl rubber compound comprises, by mass, 95-115 parts butyl latex, 2-4 parts surfactant, 1-3 parts vulcanizing agent, 2-5 parts compounding accelerator, 1-3 parts tackifier, and 30-50 parts deionized water, wherein the tackifier is added in two parts.

4. A method for preparing a water-based butyl composite inner liner glove according to any one of claims 1-3, characterized in that, The specific steps are as follows: S1. Preparation of glove blank: First, mix and comb the fiber materials of nylon fiber, bamboo fiber and antibacterial agent, and then weave them into glove blanks through textile process; S2. Preparation of the first butyl rubber compound: First, pre-vulcanize the butyl latex at 60-65℃ for 60-90 minutes. Then, add surfactant, vulcanizing agent, composite accelerator, tackifier, and deionized water to the pre-vulcanized butyl latex. After stirring evenly, a first butyl rubber compound with a viscosity of 1200-1800 mPa·s is obtained, wherein the amount of tackifier added is 0.5-1%. S3. Prepare the second butyl rubber compound: Add a thickener to the first butyl rubber compound prepared in S2 to obtain a second butyl rubber compound with a viscosity of 2800-3500 mPa·s, wherein the amount of thickener added is 1.5-2.5%; S4. Mold fitting: Fit the glove blank woven in S1 onto the hand mold and pre-treat it with hot air at 80-100℃ for 15-30 minutes; S5, First impregnation: Immerse the preheated glove blank in the first butyl rubber compound prepared in S2 for 10-20 seconds, and drip the rubber evenly. S6. Drying; S7. Second immersion: Immerse the dried gloves in the second butyl rubber compound prepared in S3 for 15-25 seconds, and drip the rubber evenly. S8, sulfidation; S9. Drying and demolding.

5. The method for preparing a water-based butyl composite inner liner glove according to claim 4, characterized in that, In S1, the antibacterial agent is a water chestnut extract or bamboo fiber with lignin nanoparticles attached to its surface.

6. The method for preparing a water-based butyl composite inner liner glove according to claim 4, characterized in that, In S1, the thickness of the glove blank is 0.3 to 0.8 mm and its surface is uniformly distributed with micron-sized air pores, the pore diameter of which is 5 to 20 μm.

7. The method for preparing a water-based butyl composite inner liner glove according to claim 4, characterized in that, In S2, the surfactant is one or more of fatty acid salts, sodium dodecyl sulfate, and alkylphenol polyoxyethylene ether; the vulcanizing agent is sulfur; the composite accelerator is composed of accelerator A and accelerator B in a mass ratio of 1:1 to 2, wherein accelerator A is one of 2-mercaptobenzothiazole, dibenzothiazole disulfide, and N-tert-butyl-2-benzothiazole sulfenamide, and accelerator B is one of N-cyclohexyl-2-benzothiazole sulfenamide, diphenylguanidine, and zinc oxide.

8. The method for preparing a water-based butyl composite inner liner glove according to claim 4, characterized in that, In S2 and S3, the thickener is sodium hydroxymethyl cellulose.

9. The method for preparing a water-based butyl composite inner liner glove according to claim 4, characterized in that, In S6, drying is performed by hot drying at 60-70℃ for 20-30 minutes.

10. The method for preparing a water-based butyl composite inner liner glove according to claim 4, characterized in that, In S8, vulcanization is first carried out at a low temperature of 100-110℃ for 30-40 minutes, followed by high-pressure vulcanization at 120-130℃ and 0.3-0.5MPa for 20-30 minutes.

11. The method for preparing a water-based butyl composite inner liner glove according to claim 4, characterized in that, In S9, drying and demolding are carried out at 80-90℃ under normal pressure until the moisture content is ≤1%, and then demolding is performed to obtain the final product, water-based butyl composite inner gloves.

12. The method for preparing a water-based butyl composite inner liner glove according to claim 10, characterized in that, In S9, the surface of the butyl rubber layer of the water-based butyl composite inner liner glove is also provided with an anti-slip texture with a Shore A hardness of 55 to 65 degrees.

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