Chlorosulfonated polyethylene glove and preparation method thereof
By improving the composition and manufacturing process of chlorosulfonated polyethylene gloves, the problems of rigid fatigue, insufficient barrier properties and aging of traditional gloves have been solved, achieving softness, comfort, weather resistance and uniformity, and extending service life.
Patent Information
- Application Number
- CN202510886945.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2025-11-18
AI Technical Summary
Traditionally prepared chlorosulfonated polyethylene gloves are rigid and prone to fatigue after long-term wear. They lack flexibility and comfort. Monochlorosulfonated polyethylene has limited barrier properties against some organic solvents and is prone to aging under ultraviolet light and high temperature environments. Furthermore, the viscosity of the adhesive paste is unstable during the preparation process, making it difficult to control the uniformity of the impregnation film.
The combination of chlorosulfonated polyethylene rubber, composite rubber matrix, reinforcing filler, functional additives, vulcanization system, anti-aging agent and fluorosilicone resin, through mixing, segmented speed-controlled stirring and two-stage impregnation process, forms a double barrier, enhances the flexibility and barrier performance of gloves, and extends service life.
It achieves the softness and comfort of gloves and the elastic deformation capability for long-term wear, improves the barrier properties against oils and organic solvents, slows down the aging rate under ultraviolet light and high temperature environments, and ensures the viscosity stability of the adhesive and the uniformity of the film layer.
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Figure CN120966151A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of chlorosulfonated polyethylene glove preparation, in particular to a chlorosulfonated polyethylene glove and a preparation method thereof. BACKGROUND
[0002] Chlorosulfonated polyethylene is a special elastomer material with high saturated chemical structure, which is prepared from polyethylene as the main raw material through chlorination and chlorosulfonation reaction, and belongs to the high-performance quality special rubber variety. It is a white or milky white elastic material with thermoplasticity. Due to the presence of chlorosulfonyl active groups in the molecular structure, it exhibits high activity, and is particularly outstanding in chemical medium corrosion resistance, ozone oxidation resistance, oil erosion resistance, flame resistance, and other properties. It also has weather resistance, heat resistance, ion radiation resistance, low temperature resistance, abrasion resistance, electrical insulation, and excellent mechanical properties. CSM was developed early for military engineering purposes. However, its large permanent deformation also limits its range of use.
[0003] Chlorosulfonated polyethylene gloves are widely used in industrial protection due to their chemical corrosion resistance, ozone resistance, and good weather resistance. However, the traditional chlorosulfonated polyethylene gloves still have the following limitations: gloves made of pure chlorosulfonated polyethylene are relatively rigid, but long-term wear can cause fatigue, resulting in insufficient flexibility and comfort of the gloves. In addition, single chlorosulfonated polyethylene has limited barrier properties against some organic solvents and is prone to accelerated aging in ultraviolet and high temperature environments, reducing the service life of the gloves and leading to insufficient protection. Furthermore, the viscosity of the glue paste is unstable, and the uniformity of the film formed by immersion is difficult to control. Therefore, a chlorosulfonated polyethylene glove and a preparation method thereof are proposed. SUMMARY
[0004] The present application aims to provide a chlorosulfonated polyethylene glove and a preparation method thereof to solve the above-mentioned limitations of traditional chlorosulfonated polyethylene gloves, such as the rigidity of gloves made of pure chlorosulfonated polyethylene, the fatigue caused by long-term wear, the insufficient flexibility and comfort of the gloves, the limited barrier properties of single chlorosulfonated polyethylene against some organic solvents, the accelerated aging in ultraviolet and high temperature environments, the reduced service life of the gloves, the insufficient protection, and the unstable viscosity of the glue paste and the difficulty in controlling the uniformity of the film formed by immersion.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a chlorosulfonated polyethylene glove made of the following raw materials: chlorosulfonated polyethylene rubber, composite rubber matrix, reinforcing filler, functional additive, vulcanization system, anti-aging agent, and fluorosilicone resin.
[0006] The composition of the glove is as follows:
[0007] Chlorosulfonated polyethylene rubber 60-80 parts;
[0008] Composite rubber matrix 10-20 parts;
[0009] Reinforcing filler 15-30 parts;
[0010] Functional aid 5-15 parts;
[0011] Vulcanization system 2-8 parts;
[0012] Anti-aging agent 3-10 parts;
[0013] Fluorosilicone resin 2-5 parts.
[0014] As preferred, the composite rubber matrix described above is a mixture of nitrile rubber and hydrogenated nitrile rubber, with a mass ratio of (1-3):1.
[0015] As preferred, the reinforcing filler described above includes nano-titanium dioxide 5-10 parts, fumed white carbon black 5-12 parts, zinc oxide 3-8 parts.
[0016] As preferred, the functional aid described above includes dispersant 1-3 parts, plasticizer 2-5 parts, flame retardant 1-2 parts, antistatic agent 1-2 parts.
[0017] As preferred, the vulcanization system described above consists of accelerator TMTD 0.5-1.5 parts, sulfur 1-3 parts, and magnesium oxide 0.5-1.5 parts.
[0018] As preferred, the anti-aging agent described above is a mixture of composite antioxidant 1010 and ultraviolet absorber UV-531, with a mass ratio of (2-4):1.
[0019] A method for preparing a chlorosulfonated polyethylene glove, comprising the following steps:
[0020] S1, chlorosulfonated polyethylene rubber, composite rubber matrix, reinforcing filler, functional aid into the internal mixer, mixing at 60-80 ℃ for 10-20 minutes, get the rubber;
[0021] S2, the rubber and vulcanization system, anti-aging agent in the open mill mixed evenly, thin pass 3-5 times, made into paste;
[0022] S3, the paste into the solvent stirring solution, adding fluorosilicone resin, control paste viscosity of 2000-4000 mPa·s, get the impregnation glue, wherein the solvent is a mixture of xylene and ethyl acetate, volume ratio of (3-5):1, paste solid content control in 20-30%;
[0023] S4, the hand mold is immersed into the impregnation glue, 80-100 ℃ pre-drying 5-10 minutes, and then vulcanized at 150-180 ℃ for 20-40 minutes;
[0024] S5, cooling and demolding after vulcanization to obtain the finished gloves.
[0025] As preferred, in the above S3, the viscosity of the glue is regulated by adding additives, the additives are 0.1-0.5 parts of polycarboxylate and 0.2-0.8 parts of hydroxyethyl cellulose.
[0026] As preferred, in the above S3, the glue stirring is controlled by stages: first high-speed dispersion at 500-800 rpm for 10-15 minutes, and then low-speed stirring at 200-300 rpm for 30-60 minutes.
[0027] As preferred, in the above S4, the dipping process adopts a two-time dipping method, the pre-drying temperature after the first dipping is 70-90 DEG C, and the viscosity of the glue solution in the second dipping is 500-1000 mPa·s higher than that in the first dipping.
[0028] Compared with the prior art, the above technical scheme has the following technical effects:
[0029] 1. The gloves are modified by introducing butyl rubber and hydrogenated butyl rubber composite matrix and chlorosulfonated polyethylene, which effectively overcomes the problem of wearing fatigue caused by the excessive rigidity of pure chlorosulfonated polyethylene, and the composite matrix gives the gloves excellent elastic deformation ability, so that the gloves remain soft and comfortable even after long-term wearing.
[0030] 2. The gloves have significantly improved barrier properties to oil and organic solvents by adding nano titanium dioxide, fumed white carbon black and zinc oxide, and the oil-repellent and water-repellent properties of fluorosilicone resin are combined with the rubber matrix to form a double-effect barrier, solving the problem of insufficient protection of single chlorosulfonated polyethylene to some solvents; and the composite antioxidant 1010 and ultraviolet absorber UV-531 are used to synergistically inhibit thermal oxidation, and the UV-531 efficiently absorbs ultraviolet wave bands, and in combination with the weather resistance of fluorosilicone resin, the degradation rate under ultraviolet radiation and high temperature environment is significantly slowed down, prolonging the service life of the gloves.
[0031] 3. The glue is homogenized and bubble-free, and the viscosity is stable by high-speed dispersion and then low-speed defoaming, and the two-stage dipping process is adopted to form a bottom layer with low viscosity in the first dipping and to enhance the compactness of the surface layer with high viscosity in the second dipping, so that the film layer is uniform and defect-free. BRIEF DESCRIPTION OF DRAWINGS
[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating any inventive labor.
[0033] Figure 1 The preparation method of the present application is shown in the following. DETAILED DESCRIPTION
[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0035] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present application are only used to understand and read the disclosed content by those skilled in the art, and are not used to limit the conditions of implementation of the present application, and therefore do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the present application, should still fall within the scope of the disclosed technical content of the present application.
[0036] Embodiment 1
[0037] Please refer to Figure 1 The present application provides a technical solution: a chlorosulfonated polyethylene glove, which is made of the following raw materials: chlorosulfonated polyethylene rubber, composite rubber matrix, reinforcing filler, functional additive, vulcanization system, anti-aging agent and fluorosilicon resin.
[0038] The mass fraction ratio of the raw materials of the glove is: chlorosulfonated polyethylene rubber 60 parts; composite rubber matrix 10 parts; reinforcing filler 15 parts; functional additive 5 parts; vulcanization system 4 parts; anti-aging agent 4 parts; fluorosilicon resin 2 parts.
[0039] The composite rubber matrix is a mixture of nitrile rubber and hydrogenated nitrile rubber with a mass ratio of 2:1. By introducing the composite matrix of nitrile rubber and hydrogenated nitrile rubber and chlorosulfonated polyethylene, the problem of wearing fatigue caused by the excessive rigidity of pure chlorosulfonated polyethylene is effectively overcome. The composite matrix gives the glove excellent elastic deformation ability, so that the glove remains soft and comfortable even after long-term wear. The reinforcing filler includes 5 parts of nano titanium dioxide, 5 parts of fumed white carbon black and 3 parts of zinc oxide. By adding nano titanium dioxide, fumed white carbon black and zinc oxide, the barrier properties against oil and organic solvents are significantly improved. At the same time, the oil-repellent and water-repellent properties of fluorosilicon resin are combined with the rubber matrix to form a double barrier, solving the problem of insufficient protection of single chlorosulfonated polyethylene against some solvents.
[0040] The functional additives include 1 part of dispersant, 2 parts of plasticizer, 2 parts of flame retardant, and 1 part of antistatic agent; the dispersant commonly used is stearic acid, stearate (such as zinc stearate), low molecular weight polyethylene wax, fatty acid ester, polyethylene glycol, etc., which helps the uniform dispersion of the filler in the rubber matrix; the plasticizer commonly used is phthalate (such as DOP, DINP, DBP), aliphatic dibasic acid ester (such as DOS), paraffin oil, naphthenic oil, polyether, etc., which improves the processing fluidity of the rubber compound, reduces the Mooney viscosity, and increases the plasticity, softness and elongation of the rubber compound; the flame retardant is used to improve the flame retardance of the glove, commonly used are aluminum hydroxide (ATH), magnesium hydroxide (MDH), phosphorus-based flame retardant (such as phosphate ester), zinc borate, antimony trioxide (Sb2O3, commonly used in combination with halogen flame retardant), chlorine-containing or bromine-containing organic flame retardant, etc.; the antistatic agent commonly used types are cationic quaternary ammonium salt or quaternary phosphonium salt (such as alkyl trimethyl quaternary ammonium salt), anionic alkyl sulfate or phosphate, non-ionic (such as fatty acid ester polyethylene glycol ether, alkanolamide) and zwitterionic, the internal antistatic agent reduces the surface resistance by migrating to the surface of the product to absorb moisture or form a conductive channel.
[0041] The vulcanization system is composed of 1 part of accelerator TMTD, 1 part of sulfur and 0.5 part of magnesium oxide; the flame retardant and the antistatic agent endow the glove with flame retardance and antistatic ability; at the same time, the vulcanization system (TMTD + sulfur + magnesium oxide) precisely controls the crosslinking density, balances the mechanical strength and flexibility; the anti-aging agent is a mixture of composite antioxidant 1010 and ultraviolet absorber UV-531 with a mass ratio of 2:1; the composite antioxidant 1010 and the ultraviolet absorber UV-531 are used in synergistic action, the antioxidant 1010 inhibits thermal oxidation, the UV-531 efficiently absorbs the ultraviolet wave band, and in combination with the weather resistance of the fluorosilicone resin, the degradation rate under ultraviolet irradiation and high temperature environment is significantly slowed down, and the service life of the glove is prolonged.
[0042] A preparation method of chlorosulfonated polyethylene gloves, comprising the following steps:
[0043] S1, chlorosulfonated polyethylene rubber, composite rubber matrix, reinforcing filler, functional additive are added to the internal mixer, and mixed at 75℃ for 15 minutes to obtain a mixed rubber;
[0044] S2, the mixed rubber is mixed with the vulcanization system and the anti-aging agent on the open mill, and is passed through 4 times to make a rubber paste;
[0045] S3, the glue paste is added to the solvent and stirred to dissolve, the glue paste stirring adopts staged speed control: first dispersed at high speed of 600 rpm for 15 minutes, then switched to low speed stirring of 250 rpm for 50 minutes, through the segmented speed control stirring, first high speed dispersion and then low speed defoaming, so that the glue paste is homogeneous and bubble-free, and the viscosity is stable; add fluorosilicon resin, control the viscosity of the glue paste to be 2000-4000 mPa·s, obtain the impregnation glue solution, wherein the solvent is a mixed solvent of dimethylbenzene and ethyl acetate, the volume ratio is 4:1, the solid content of the glue paste is controlled to be 20-30%, the viscosity of the glue paste is adjusted by adding additives, the additives are polycarboxylate 0.2 parts and hydroxyethyl cellulose 0.5 parts, the polycarboxylate is a dispersing agent, the hydroxyethyl cellulose is a thickening agent, which is a process aid, the main purpose is to adjust the processing performance (mainly viscosity and dispersion stability) of the glue solution in the specific process step of dissolving to form a liquid impregnation glue solution;
[0046] S4, the hand mold is immersed into the impregnation glue solution, pre-dried at 80℃ for 8 minutes, and then vulcanized at 165℃ for 30 minutes, the impregnation process adopts twice impregnation method, the pre-drying temperature after the first impregnation is 75℃, the viscosity of the second impregnation glue solution is higher than that of the first impregnation by 500-1000 mPa·s, the two-stage impregnation process is adopted, the first low viscosity forms a bottom layer, and the second high viscosity enhances the compactness of the surface layer, so that the film layer is uniform and defect-free;
[0047] S5, after vulcanization, cooling and demolding to obtain the finished glove.
[0048] Example 2
[0049] Different from example 1: a chlorosulfonated polyethylene glove, the glove is made of the following raw materials: chlorosulfonated polyethylene rubber, composite rubber matrix, reinforcing filler, functional additive, vulcanization system, anti-aging agent and fluorosilicon resin;
[0050] The mass fraction ratio of the raw materials of the glove is: chlorosulfonated polyethylene rubber 75 parts; composite rubber matrix 15 parts; reinforcing filler 20 parts; functional additive 10 parts; vulcanization system 5 parts; anti-aging agent 6 parts; fluorosilicon resin 3 parts.
[0051] The composite rubber matrix is a mixture of butyl nitrile rubber and hydrogenated butyl nitrile rubber, the mass ratio is 2:1; the reinforcing filler includes nano titanium dioxide 6 parts, fumed white carbon black 7 parts, and zinc oxide 5 parts; the functional additive includes dispersing agent 1 part, plasticizer 3 parts, flame retardant 2 parts, and antistatic agent 1 part; the vulcanization system is composed of accelerator TMTD 0.5 parts, sulfur 1 part, and magnesium oxide 1 part; the anti-aging agent is a mixture of composite antioxidant 1010 and ultraviolet absorber UV-531, the mass ratio is 2:1.
[0052] A preparation method of a chlorosulfonated polyethylene glove, comprising the following steps:
[0053] S1, chlorosulfonated polyethylene rubber, composite rubber matrix, reinforcing filler, functional additive into the internal mixer, mixing at 70℃ for 15 minutes, get the rubber;
[0054] S2, the rubber and vulcanization system, aging resistance agent on the mixing mill evenly, thin pass 4 times, made into paste;
[0055] S3, the paste into the solvent stirring solution, paste stirring using phase control speed: first with 500-800 rpm high speed dispersion 15 minutes, then switch to 250 rpm low speed stirring 50 minutes, add fluorosilicon resin, control paste viscosity of 2000-4000 mPa·s, get the impregnation glue, wherein the solvent is xylene and ethyl acetate mixed solvent, volume ratio of 4:1, paste solid content control in 20-30%, by adding additive to regulate the viscosity of the paste, additive is poly carboxylate 0.3 parts and hydroxyethyl cellulose 0.5 parts;
[0056] S4, the hand mold is immersed into the impregnation glue, prebaked at 80℃ for 8 minutes, then vulcanized at 170℃ for 28 minutes, the impregnation process adopts twice impregnation method, the first time after prebaking temperature is 80℃, the second time the viscosity of the impregnation glue is higher than the first time 500-1000 mPa·s;
[0057] S5, after vulcanization cooling demolding, get the finished gloves.
[0058] Example 3
[0059] Different from examples 1 and 2: a chlorosulfonated polyethylene glove, the glove is made of the following raw materials: chlorosulfonated polyethylene rubber, composite rubber matrix, reinforcing filler, functional additive, vulcanization system, aging resistance agent and fluorosilicon resin;
[0060] The mass fraction of the glove composition is: chlorosulfonated polyethylene rubber 75 parts; composite rubber matrix 20 parts; reinforcing filler 25 parts; functional additive 10 parts; vulcanization system 6 parts; aging resistance agent 8 parts; fluorosilicon resin 5 parts.
[0061] The composite rubber matrix is a mixture of butyl rubber and hydrogenated butyl rubber, with a mass ratio of 2:1; the reinforcing filler includes 5 parts of nano titanium dioxide, 5 parts of fumed white carbon black and 3 parts of zinc oxide; the functional additive includes 2 parts of dispersant, 2 parts of plasticizer, 2 parts of flame retardant and 2 parts of antistatic agent; the vulcanization system is composed of 1.5 parts of accelerator TMTD, 2 parts of sulfur and 1 part of magnesium oxide; the aging resistance agent is a mixture of composite antioxidant 1010 and ultraviolet absorber UV-531, with a mass ratio of 2:1.
[0062] A method for preparing a chlorosulfonated polyethylene glove, comprising the following steps:
[0063] S1, chlorosulfonated polyethylene rubber, composite rubber matrix, reinforcing filler, functional additive are added into the internal mixer, and mixed at 80℃ for 12 minutes to obtain a mixed rubber;
[0064] S2, the mixed rubber is mixed with the vulcanization system and the anti-aging agent on the open mill, and is thinly passed 5 times to prepare a rubber paste;
[0065] S3, the rubber paste is stirred and dissolved in a solvent, and the stirring of the rubber paste is controlled in stages: first dispersed at a high speed of 800 rpm for 10 minutes, and then switched to a low speed of 300 rpm for 30 minutes, the fluorosilicon resin is added, the viscosity of the rubber paste is controlled to be 2000-4000 mPa·s, the solvent is a mixed solvent of dimethylbenzene and ethyl acetate with a volume ratio of 4:1, the solid content of the rubber paste is controlled to be 20-30%, the viscosity of the rubber paste is adjusted by adding additives, the additives are polycarboxylate 0.5 parts and hydroxyethyl cellulose 0.8 parts;
[0066] S4, the hand mold is immersed into the impregnation glue solution, pre-dried at 100℃ for 5 minutes, and then vulcanized at 180℃ for 20 minutes, the impregnation process adopts a two-time impregnation method, the pre-drying temperature after the first impregnation is 90℃, and the viscosity of the second impregnation glue solution is higher than that of the first impregnation by 500-1000 mPa·s;
[0067] S5, after vulcanization, the mold is removed after cooling to obtain a finished glove.
[0068] Example 4
[0069] Different from examples 1, 2 and 3: a chlorosulfonated polyethylene glove, the glove is made of the following raw materials: chlorosulfonated polyethylene rubber, composite rubber matrix, reinforcing filler, functional additive, vulcanization system, anti-aging agent and fluorosilicon resin;
[0070] The mass fraction ratio of the raw materials of the glove is: chlorosulfonated polyethylene rubber 80 parts; composite rubber matrix 20 parts; reinforcing filler 15 parts; functional additive 15 parts; vulcanization system 5 parts; anti-aging agent 7 parts; fluorosilicon resin 5 parts.
[0071] The composite rubber matrix is a mixture of butyl nitrile rubber and hydrogenated butyl nitrile rubber with a mass ratio of 3:1; the reinforcing filler includes 5 parts of nano titanium dioxide, 5 parts of fumed white carbon black and 3 parts of zinc oxide; the functional additive includes 2 parts of dispersant, 2 parts of plasticizer, 2 parts of flame retardant and 2 parts of antistatic agent; the vulcanization system is composed of 1.5 parts of accelerator TMTD, 2 parts of sulfur and 1 part of magnesium oxide; the anti-aging agent is a mixture of composite antioxidant 1010 and ultraviolet absorber UV-531 with a mass ratio of 3:1.
[0072] A preparation method of a chlorosulfonated polyethylene glove, comprising the following steps:
[0073] S1, chlorosulfonated polyethylene rubber, composite rubber matrix, reinforcing filler, functional additive are added into the internal mixer, and mixing is carried out at 80 DEG C for 12 minutes to obtain a mixed rubber;
[0074] S2, the mixed rubber is mixed with the vulcanization system and the anti-aging agent on the open mill, and thin passing is carried out 5 times to prepare a rubber paste;
[0075] S3, the rubber paste is stirred and dissolved in a solvent, and the stirring of the rubber paste is controlled in stages: first, high-speed dispersion is carried out at 800 rpm for 10 minutes, and then switching to low-speed stirring at 300 rpm for 30 minutes, the fluorosilicone resin is added, the viscosity of the rubber paste is controlled to be 2000-4000 mPa·s, the solvent is a mixed solvent of dimethylbenzene and ethyl acetate with a volume ratio of 4:1, the solid content of the rubber paste is controlled to be 20-30%, the viscosity of the rubber paste is adjusted by adding additives, the additives are polycarboxylate 0.5 parts and hydroxyethyl cellulose 0.8 parts;
[0076] S4, the hand mold is immersed into the impregnation glue solution, pre-dried at 100 DEG C for 5 minutes, and then vulcanized at 180 DEG C for 20 minutes, the impregnation process adopts a two-time impregnation method, the pre-drying temperature after the first impregnation is 90 DEG C, and the viscosity of the second impregnation glue solution is higher than that of the first impregnation by 500-1000 mPa·s;
[0077] S5, after vulcanization, cooling and demolding, a finished glove is obtained.
[0078] In summary, the present application introduces butyl nitrile rubber and hydrogenated butyl nitrile rubber composite matrix to cooperate with chlorosulfonated polyethylene, effectively overcomes the problem of wearing fatigue caused by the too strong rigidity of pure chlorosulfonated polyethylene, the composite matrix gives the glove excellent elastic deformation ability, and the glove still maintains softness and comfort during long-term wearing; by adding nano titanium dioxide, fumed white carbon black and zinc oxide, the barrier property to oil and organic solvent is significantly improved, the oil-repellent and water-repellent properties of fluorosilicone resin are combined with the rubber matrix to form a double-effect barrier, and the problem of insufficient protection of single chlorosulfonated polyethylene to some solvents is solved; and the composite antioxidant 1010 and ultraviolet absorber UV-531 are used to cooperate, the antioxidant 1010 inhibits thermal oxidation, the UV-531 efficiently absorbs ultraviolet wave band, and in combination with the weather resistance of fluorosilicone resin, the degradation rate under ultraviolet irradiation and high temperature environment is significantly reduced, and the service life of the glove is prolonged; by segmental speed control stirring, high-speed dispersion is first carried out and then low-speed defoaming is carried out, so that the rubber paste is homogeneous and bubble-free, the viscosity is stable, and a two-stage impregnation process is adopted, the bottom layer is formed by low viscosity in the first time, and the surface layer is densified by high viscosity in the second time, so that the film layer is uniform and defect-free.
[0079] It will be appreciated by those skilled in the art that features of the various embodiments and / or claims of the present application can be combined or / and integrated, even if such combinations or integrations are not expressly disclosed in the present application. In particular, features of the various embodiments and / or claims of the present application can be combined or / and integrated in any number of ways, without departing from the spirit and scope of the present application. All such combinations and / or integrations are within the scope of the present application.
Claims
1. A chlorosulfonated polyethylene glove, characterized in that, The gloves are made from the following raw materials: chlorosulfonated polyethylene rubber, composite rubber matrix, reinforcing filler, functional additives, vulcanization system, anti-aging agent and fluorosilicone resin; The mass ratio of the raw materials used to make the gloves is as follows: 60-80 parts of chlorosulfonated polyethylene rubber; 10-20 parts of composite rubber matrix; 15-30 parts of reinforcing filler; 5-15 parts of functional additives; 2-8 parts of vulcanization system; Anti-aging agent 3-10 parts; 2-5 parts of fluorosilicone resin.
2. The chlorosulfonated polyethylene glove according to claim 1, characterized in that: The composite rubber matrix is a mixture of nitrile rubber and hydrogenated nitrile rubber in a mass ratio of (1-3):
1.
3. The chlorosulfonated polyethylene glove according to claim 1, characterized in that: The reinforcing filler comprises 5-10 parts of nano-titanium dioxide, 5-12 parts of fumed silica, and 3-8 parts of zinc oxide.
4. The chlorosulfonated polyethylene glove according to claim 1, characterized in that: The functional additives include 1-3 parts dispersant, 2-5 parts plasticizer, 1-2 parts flame retardant, and 1-2 parts antistatic agent.
5. A chlorosulfonated polyethylene glove according to claim 1, characterized in that: The vulcanization system consists of 0.5-1.5 parts of accelerator TMTD, 1-3 parts of sulfur, and 0.5-1.5 parts of magnesium oxide.
6. A chlorosulfonated polyethylene glove according to claim 1, characterized in that: The anti-aging agent is a mixture of composite antioxidant 1010 and ultraviolet absorber UV-531, with a mass ratio of (2-4):
1.
7. The method for preparing a chlorosulfonated polyethylene glove according to claim 1, characterized in that: Includes the following steps: S1. Add chlorosulfonated polyethylene rubber, composite rubber matrix, reinforcing filler, and functional additives to a mixer and mix at 60-80℃ for 10-20 minutes to obtain the compound. S2. Mix the compounded rubber with the vulcanization system and anti-aging agent evenly on a two-roll mill, and pass it through a thin mill 3-5 times to make a rubber paste; S3. Add the adhesive paste to the solvent and stir to dissolve. Add fluorosilicone resin and control the viscosity of the adhesive paste to 2000-4000 mPa·s to obtain the impregnation solution. The solvent is a mixture of xylene and ethyl acetate with a volume ratio of (3-5):
1. The solid content of the adhesive paste is controlled at 20-30%. S4. Immerse the hand mold in the impregnation solution, pre-bake at 80-100℃ for 5-10 minutes, and then vulcanize at 150-180℃ for 20-40 minutes. S5. After vulcanization, cool and demold to obtain the finished gloves.
8. The method for preparing a chlorosulfonated polyethylene glove according to claim 7, characterized in that: In S3, the viscosity of the adhesive is adjusted by adding additives, namely 0.1-0.5 parts of polycarboxylate and 0.2-0.8 parts of hydroxyethyl cellulose.
9. The method for preparing a chlorosulfonated polyethylene glove according to claim 7, characterized in that: In S3, the mixing of the slurry adopts a staged speed control: first disperse at high speed of 500-800 rpm for 10-15 minutes, and then switch to low speed of 200-300 rpm for 30-60 minutes.
10. The method for preparing a chlorosulfonated polyethylene glove according to claim 7, characterized in that: In S4, the impregnation process adopts a two-stage impregnation method. The pre-drying temperature after the first impregnation is 70-90℃, and the viscosity of the adhesive solution in the second impregnation is 500-1000 mPa·s higher than that in the first impregnation.
Citation Information
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