High-elasticity high-toughness glove material and preparation method thereof

Abstract

The application relates to the technical field of material preparation, and particularly discloses a high-elasticity and high-toughness glove material and a preparation method thereof. The high-elasticity and high-toughness glove material comprises the following raw material components in mass fractions: 100 parts of a rubber matrix, 3-4 parts of a vulcanizing agent, 2-3 parts of an activator, 8-10 parts of a reinforcing agent, 5-7 parts of a toughening agent, 2-4 parts of nano-zinc oxide, 2-4 parts of polyethylene glycol and 3-5 parts of an auxiliary agent; the rubber matrix comprises brominated butyl rubber, acrylate rubber and chlorosulfonated polyethylene rubber; and the reinforcing agent comprises poly-caprolactone modified sodium bentonite. The high-elasticity and high-toughness glove material provided by the application takes brominated butyl rubber, acrylate rubber and chlorosulfonated polyethylene rubber as the rubber matrix and takes poly-caprolactone modified sodium bentonite as the reinforcing agent, and the toughness and resilience of the glove material can be obviously improved by optimizing the components of the glove material.

Description

Technical Field

[0001] This invention relates to the field of materials preparation technology, and in particular to a high-elasticity, high-toughness glove material and its preparation method. Background Technology

[0002] Rubber gloves, due to their excellent protective properties, are widely used in various fields such as medical care, chemical operations, and daily cleaning. Their safety and comfort depend directly on the elasticity and toughness of the material. However, existing rubber glove materials generally suffer from insufficient toughness and poor elastic recovery, severely limiting their application in complex working conditions.

[0003] In practical use, traditional rubber gloves are prone to tearing and puncture damage, especially when in contact with sharp objects or undergoing repeated bending and stretching operations, significantly increasing the risk of breakage. Furthermore, prolonged wear or stress can lead to permanent deformation, preventing them from quickly recovering their original shape and resulting in decreased fit and reduced operational flexibility. These problems may be caused by the following factors: Firstly, the commonly used natural rubber and nitrile rubber matrices in existing gloves have poor uniformity in molecular chain cross-linking, making it difficult to balance elasticity and toughness. Secondly, current vulcanization processes often employ single-stage high-temperature vulcanization, which can easily lead to uneven cross-linking density. Over-cross-linking in some areas increases brittleness, while insufficient cross-linking in others affects elastic recovery. In addition, traditional reinforcing and toughening systems have poor compatibility with the rubber matrix, resulting in uneven dispersion and an inability to effectively improve the material's mechanical properties. They may even cause localized stress concentration due to agglomeration, further exacerbating toughness defects. Therefore, addressing the core issues of poor resilience and insufficient toughness in existing rubber glove materials, developing a glove material that can achieve a synergistic improvement in resilience and toughness through optimizing the rubber matrix ratio, improving the vulcanization process, and reinforcing and toughening systems has become an urgent technical need in this field. Summary of the Invention

[0004] In view of this, the present invention provides a high-elasticity, high-toughness glove material and its preparation method. The present invention solves the problems of poor resilience and insufficient toughness in existing rubber glove materials by optimizing the composition of the high-elasticity, high-toughness glove material.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: This invention provides a high-elasticity and high-toughness glove material, comprising the following raw material components in parts by weight: 100 parts of rubber matrix, 3-4 parts of vulcanizing agent, 2-3 parts of activator, 8-10 parts of reinforcing agent, 5-7 parts of toughening agent, 2-4 parts of nano zinc oxide, 2-4 parts of polyethylene glycol, and 3-5 parts of additives. The rubber matrix includes brominated butyl rubber, acrylate rubber, and chlorosulfonated polyethylene rubber; The reinforcing agent includes polycaprolactone-modified sodium bentonite.

[0006] Compared to existing technologies, the high-elasticity, high-toughness glove material provided by this invention utilizes brominated butyl rubber to ensure excellent resilience, acrylate rubber for excellent crosslinking activity to ensure a stable network structure, and chlorosulfonated polyethylene rubber for excellent tear resistance, further enhancing the glove's toughness. This invention creatively combines these three rubbers, with the ternary system working synergistically to significantly improve and balance the glove's elasticity and toughness, resulting in a material that combines high elasticity and high toughness. The vulcanizing agent and nano-zinc oxide fully activate the vulcanization active sites of the three rubber matrices, promoting the formation of a uniform and dense three-dimensional crosslinked network, thereby improving the glove material's toughness and resilience. Polycaprolactone-modified sodium bentonite hinders the slippage of rubber molecular chains under external forces, improving elastic resilience. Furthermore, the modified sodium bentonite absorbs impact energy and inhibits crack propagation, further improving the glove material's toughness. Polyethylene glycol effectively avoids the agglomeration problems of reinforcing agents and nano-zinc oxide powders, thus improving the glove material's performance.

[0007] The high-elasticity and high-toughness glove material provided by this invention uses brominated butyl rubber, acrylate rubber and chlorosulfonated polyethylene rubber as rubber matrices and polycaprolactone-modified sodium bentonite as a reinforcing agent. By optimizing the composition of the glove material, this invention can significantly improve the toughness and resilience of the glove material.

[0008] Preferably, the preparation method of the polycaprolactone-modified sodium bentonite includes the following steps: S1. Dissolve polycaprolactone in tetrahydrofuran to obtain a polycaprolactone mixture; S2. Sodium-based bentonite and silane coupling agent are added to a polycaprolactone mixture for reaction to obtain the polycaprolactone-modified sodium-based bentonite.

[0009] In the preparation method of polycaprolactone-modified sodium bentonite provided by the present invention, tetrahydrofuran is used as a solvent, which is beneficial for the intercalation of polycaprolactone into sodium bentonite, while silane coupling agent helps to strengthen the bond between the two. The polycaprolactone-modified sodium bentonite prepared by the above method can significantly improve the toughness and resilience of glove materials.

[0010] Preferably, in S1, the mass-to-volume ratio of polycaprolactone to tetrahydrofuran is 10 g: (90~110) mL.

[0011] It should be further noted that in S2, the sodium-based bentonite also needs to be pretreated by drying it at 100~110℃.

[0012] Preferably, in S2, the particle size of the sodium-based bentonite is 150~300nm.

[0013] Preferably, in S2, the silane coupling agent is KH-550.

[0014] Preferably, in S2, the mass ratio of sodium bentonite to polycaprolactone is 10:(3~5).

[0015] Preferably, in S2, the mass ratio of sodium-based bentonite to silane coupling agent is 10:(0.5~1).

[0016] Preferably, in S2, the reaction temperature is 40~50℃.

[0017] Preferably, in S2, the reaction time is 45-55 min.

[0018] Preferably, in S2, the reaction is carried out by ultrasonic treatment, with an ultrasonic power of 300~400W and an ultrasonic frequency of 40kHz.

[0019] It should be further noted that in S2, the reaction system after the reaction is completed is subjected to vacuum distillation, washing, and drying to obtain the polycaprolactone-modified sodium-based bentonite.

[0020] Preferably, the rubber matrix comprises the following components in the following mass percentages: 40%~50% brominated butyl rubber, 25%~35% acrylate rubber, and 20%~30% chlorosulfonated polyethylene rubber.

[0021] This invention further defines the proportions of the components in the rubber matrix, which is beneficial for further improving the performance of the rubber matrix.

[0022] Preferably, the vulcanizing agent comprises 2-thiol benzothiazole zinc salt and trimethylolpropane trimethacrylate.

[0023] The preferred vulcanizing agent can promote the formation of a uniform and dense cross-linked network in the rubber matrix, thereby effectively improving the resilience and toughness of the glove material.

[0024] More preferably, the vulcanizing agent comprises 2-thiol benzothiazole zinc salt and trimethylolpropane trimethacrylate in a mass ratio of (1.5~2):1.

[0025] Preferably, the toughening agent comprises chlorinated polyethylene.

[0026] Preferably, the polyethylene glycol is polyethylene glycol 400.

[0027] Preferably, the particle size of the nano zinc oxide is 20~50nm.

[0028] Preferably, the adjuvants include zinc stearate and hindered phenolic antioxidants.

[0029] More preferably, the additives include zinc stearate and hindered phenolic antioxidants in a mass ratio of (1~1.5):(0.5~1).

[0030] Preferably, the activator includes magnesium oxide.

[0031] More preferably, the magnesium oxide has a particle size of 1~3μm.

[0032] This invention provides a method for preparing the above-mentioned high-elasticity and high-toughness glove material, comprising the following steps: Step 1: The weighed rubber matrix is ​​subjected to a first internal mixing to obtain a first-mixed rubber. Step 2: After the activator, nano zinc oxide, reinforcing agent, polyethylene glycol and additives are mixed evenly, they are added to the primary internal mixing rubber for a second internal mixing to obtain a secondary internal mixing mixture; Step 3: Add the toughening agent to the secondary intensive mixing mixture and perform a third intensive mixing to obtain a tertiary intensive mixing mixture; Step 4: Add the vulcanizing agent to the three-stage mixing mixture for a fourth mixing and vulcanization to obtain a high-elasticity and high-toughness glove material.

[0033] Preferably, in step 1, the temperature of the first mixing is 80~90℃ and the time is 3~5 minutes.

[0034] Preferably, in step 2, the temperature of the second mixing is 80~90℃ and the time is 5~8 minutes.

[0035] Preferably, in step 3, the temperature of the third mixing is 80~90℃ and the time is 2~3 minutes.

[0036] Preferably, in step 4, the temperature of the fourth internal mixing is 60~70℃ and the time is 2~3 minutes.

[0037] Preferably, in step 4, the vulcanization is divided into a first vulcanization treatment and a second vulcanization treatment.

[0038] More preferably, the temperature of the first vulcanization treatment is 150~160℃ and the time is 15~20min.

[0039] More preferably, the temperature of the second vulcanization treatment is 120~130℃ and the time is 2~3 minutes.

[0040] The method for preparing high-elasticity and high-toughness glove material provided by the present invention significantly improves the resilience and toughness of the glove material through the process of partial mixing and partial vulcanization. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0042] In the embodiments and comparative examples of this invention, brominated butyl rubber was purchased from Shanghai Panren International Trade Co., Ltd., model number 2030; acrylate rubber was purchased from Anhui Lixin Rubber Technology Co., Ltd., model number ACM; chlorosulfonated polyethylene rubber was purchased from Guangzhou Liben Rubber Raw Material Trade Co., Ltd., model number CSM; hindered phenolic antioxidant was purchased from Dongguan Dinghai Plastic Chemical Co., Ltd., product model number antioxidant AO-60(1010); and polycaprolactone was purchased from Wuhan Chengtian Fine Chemical Co., Ltd.

[0043] Unless otherwise specified, the raw materials and reagents used in this invention are all conventional commercially available products; unless otherwise specified, the methods used in this invention are all conventional methods in the field.

[0044] Example 1 This embodiment provides a high-elasticity and high-toughness glove material, comprising the following raw material components in parts by weight: 100 parts rubber matrix, 4 parts vulcanizing agent, 2 parts magnesium oxide with a particle size of 1~3μm, 8 parts polycaprolactone-modified sodium bentonite, 7 parts chlorinated polyethylene, 2 parts nano zinc oxide with a particle size of 20~30nm, 2 parts polyethylene glycol 400, and 5 parts additives; The rubber matrix comprises the following components by weight percentage: 40% brominated butyl rubber, 30% acrylate rubber, and 30% chlorosulfonated polyethylene rubber; The preparation method of polycaprolactone-modified sodium bentonite includes the following steps: S1. Polycaprolactone is dissolved in tetrahydrofuran at a mass-to-volume ratio of 10g:100mL to obtain a polycaprolactone mixture. S2. Dry sodium-based bentonite with a particle size of 150~200nm and silane coupling agent KH-550 were added to a polycaprolactone mixture and ultrasonically treated at 40℃ for 50min with a power of 300W and an ultrasonic frequency of 40kHz. After ultrasonication, the product was subjected to vacuum distillation, washing, and drying to obtain polycaprolactone-modified sodium-based bentonite. The mass ratio of sodium-based bentonite to polycaprolactone was 10:5, and the mass ratio of sodium-based bentonite to silane coupling agent was 10:1. The vulcanizing agent consists of zinc salt of 2-thiol benzothiazole and trimethylolpropane trimethacrylate in a mass ratio of 2:1; The additives include zinc stearate and hindered phenolic antioxidants in a 1:1 mass ratio.

[0045] This embodiment also provides a method for preparing the above-mentioned material, including the following steps: Step 1: Mix the weighed rubber matrix at 90°C for 5 minutes to obtain a single-component rubber; Step 2: Mix magnesium oxide, nano zinc oxide, polycaprolactone-modified sodium bentonite, polyethylene glycol 400 and additives evenly, then add them to the primary intensive rubber and intensively mix at 90°C for 8 minutes to obtain the secondary intensive mixture. Step 3: Add chlorinated polyethylene to the secondary kneading mixture and knead at 90°C for 2 minutes to obtain the tertiary kneading mixture; Step 4: Add the vulcanizing agent to the three-stage mixing mixture, mix at 60°C for 2 minutes, vulcanize at 150°C for 15 minutes, and then vulcanize at 130°C for 3 minutes to obtain a high-elasticity and high-toughness glove material.

[0046] Example 2 This embodiment provides a high-elasticity and high-toughness glove material, comprising the following raw material components in parts by weight: 100 parts rubber matrix, 3 parts vulcanizing agent, 3 parts magnesium oxide with a particle size of 1~3μm, 10 parts polycaprolactone-modified sodium bentonite, 5 parts chlorinated polyethylene, 4 parts nano zinc oxide with a particle size of 40~50nm, 4 parts polyethylene glycol 400, and 3 parts additives; The rubber matrix comprises the following components by weight percentage: 50% brominated butyl rubber, 25% acrylate rubber, and 25% chlorosulfonated polyethylene rubber; The preparation method of polycaprolactone-modified sodium bentonite includes the following steps: S1. Polycaprolactone is dissolved in tetrahydrofuran at a mass-to-volume ratio of 10g:90mL to obtain a polycaprolactone mixture. S2. Dry sodium-based bentonite with a particle size of 250~300nm and silane coupling agent KH-550 were added to a polycaprolactone mixture and ultrasonically treated at 50℃ for 45min with a power of 350W and an ultrasonic frequency of 40kHz. After ultrasonication, the product was subjected to vacuum distillation, washing, and drying to obtain polycaprolactone-modified sodium-based bentonite. The mass ratio of sodium-based bentonite to polycaprolactone was 10:3, and the mass ratio of sodium-based bentonite to silane coupling agent was 10:0.5. The vulcanizing agent comprises zinc salt of 2-thiol benzothiazole and trimethylolpropane trimethacrylate in a mass ratio of 1.5:1; The additives include zinc stearate and hindered phenolic antioxidants in a mass ratio of 1.5:1.

[0047] This embodiment also provides a method for preparing the above-mentioned material, including the following steps: Step 1: Mix the weighed rubber matrix at 80°C for 3 minutes to obtain a single-component rubber; Step 2: Mix magnesium oxide, nano zinc oxide, polycaprolactone-modified sodium bentonite, polyethylene glycol 400 and additives evenly, then add them to the primary intensive rubber and intensively mix at 80°C for 5 minutes to obtain the secondary intensive mixture. Step 3: Add chlorinated polyethylene to the secondary kneading mixture and knead at 90°C for 3 minutes to obtain the tertiary kneading mixture; Step 4: Add the vulcanizing agent to the three-stage mixing mixture, mix at 70°C for 3 minutes, vulcanize at 160°C for 20 minutes, and then vulcanize at 120°C for 2 minutes to obtain a high-elasticity and high-toughness glove material.

[0048] Example 3 This embodiment provides a high-elasticity and high-toughness glove material, comprising the following raw material components in parts by weight: 100 parts rubber matrix, 3 parts vulcanizing agent, 3 parts magnesium oxide with a particle size of 1~3μm, 10 parts polycaprolactone-modified sodium bentonite, 7 parts chlorinated polyethylene, 4 parts nano zinc oxide with a particle size of 40~50nm, 4 parts polyethylene glycol 400, and 3 parts additives; The rubber matrix comprises the following components by weight percentage: 45% brominated butyl rubber, 30% acrylate rubber, and 25% chlorosulfonated polyethylene rubber; The preparation method of polycaprolactone-modified sodium bentonite includes the following steps: S1. Polycaprolactone is dissolved in tetrahydrofuran at a mass-to-volume ratio of 10g:110mL to obtain a polycaprolactone mixture. S2. Dry sodium-based bentonite with a particle size of 250~300nm and silane coupling agent KH-550 were added to a polycaprolactone mixture and ultrasonically treated at 50℃ for 55min with a power of 400W and an ultrasonic frequency of 40kHz. After ultrasonication, the product was subjected to vacuum distillation, washing, and drying to obtain polycaprolactone-modified sodium-based bentonite. The mass ratio of sodium-based bentonite to polycaprolactone was 10:4, and the mass ratio of sodium-based bentonite to silane coupling agent was 10:1. The vulcanizing agent consists of zinc salt of 2-thiol benzothiazole and trimethylolpropane trimethacrylate in a mass ratio of 2:1; The additives include zinc stearate and hindered phenolic antioxidants in a mass ratio of 1:0.5.

[0049] This embodiment also provides a method for preparing the above-mentioned material, including the following steps: Step 1: Mix the weighed rubber matrix at 80°C for 4 minutes to obtain a single-component rubber; Step 2: Mix magnesium oxide, nano zinc oxide, polycaprolactone-modified sodium bentonite, polyethylene glycol 400 and additives evenly, then add them to the primary intensive rubber and intensively mix at 85°C for 6 minutes to obtain the secondary intensive mixture. Step 3: Add chlorinated polyethylene to the secondary kneading mixture and knead at 90°C for 3 minutes to obtain the tertiary kneading mixture; Step 4: Add the vulcanizing agent to the three-stage mixing mixture, mix at 70°C for 3 minutes, vulcanize at 160°C for 20 minutes, and then vulcanize at 120°C for 2 minutes to obtain a high-elasticity and high-toughness glove material.

[0050] Comparative Example 1 This comparative example provides a glove material that differs from Example 1 in that polycaprolactone is replaced with an equal amount of polylactic acid, which was purchased from Shanghai Baohualien Plastics Co., Ltd. Specifically, the raw material components include the following parts by weight: 100 parts rubber matrix, 4 parts vulcanizing agent, 2 parts magnesium oxide with a particle size of 1~3μm, 8 parts polylactic acid modified sodium bentonite, 7 parts chlorinated polyethylene, 2 parts nano zinc oxide with a particle size of 20~30nm, 2 parts polyethylene glycol 400, and 5 parts additives. The rubber matrix comprises the following components by weight percentage: 40% brominated butyl rubber, 30% acrylate rubber, and 30% chlorosulfonated polyethylene rubber; The preparation method of polylactic acid modified sodium bentonite includes the following steps: S1. Dissolve polylactic acid in tetrahydrofuran at a mass-to-volume ratio of 10g:100mL to obtain a polylactic acid mixture. S2. Dry sodium-based bentonite with a particle size of 150~200nm and silane coupling agent KH-550 were added to a polylactic acid mixture and ultrasonically treated at 40℃ for 50min with a power of 300W and an ultrasonic frequency of 40kHz. After ultrasonic treatment, the product was subjected to vacuum distillation, washing, and drying to obtain polylactic acid modified sodium-based bentonite. The mass ratio of sodium-based bentonite to polylactic acid was 10:5, and the mass ratio of sodium-based bentonite to silane coupling agent was 10:1. The vulcanizing agent consists of zinc salt of 2-thiol benzothiazole and trimethylolpropane trimethacrylate in a mass ratio of 2:1; The additives include zinc stearate and hindered phenolic antioxidants in a 1:1 mass ratio.

[0051] The preparation method of the above glove material is the same as that in Example 1, only the material needs to be replaced, and will not be described again here.

[0052] Comparative Example 2 This comparative example provides a glove material that differs from Example 1 in that brominated butyl rubber is replaced with an equal amount of chlorosulfonated polyethylene rubber. Specifically, the raw material components include the following parts by weight: 100 parts rubber matrix, 4 parts vulcanizing agent, 2 parts magnesium oxide with a particle size of 1~3μm, 8 parts polycaprolactone-modified sodium bentonite, 7 parts chlorinated polyethylene, 2 parts nano zinc oxide with a particle size of 20~30nm, 2 parts polyethylene glycol 400, and 5 parts additives. The rubber matrix comprises the following components by weight percentage: 30% acrylate rubber and 70% chlorosulfonated polyethylene rubber; The preparation method of polycaprolactone-modified sodium bentonite includes the following steps: S1. Polycaprolactone is dissolved in tetrahydrofuran at a mass-to-volume ratio of 10g:100mL to obtain a polycaprolactone mixture. S2. Dry sodium-based bentonite with a particle size of 150~200nm and silane coupling agent KH-550 were added to a polycaprolactone mixture and ultrasonically treated at 40℃ for 50min with a power of 300W and an ultrasonic frequency of 40kHz. After ultrasonication, the product was subjected to vacuum distillation, washing, and drying to obtain polycaprolactone-modified sodium-based bentonite. The mass ratio of sodium-based bentonite to polycaprolactone was 10:5, and the mass ratio of sodium-based bentonite to silane coupling agent was 10:1. The vulcanizing agent consists of zinc salt of 2-thiol benzothiazole and trimethylolpropane trimethacrylate in a mass ratio of 2:1; The additives include zinc stearate and hindered phenolic antioxidants in a 1:1 mass ratio.

[0053] The preparation method of the above glove material is the same as that in Example 1, only the material needs to be replaced, and will not be described again here.

[0054] Comparative Example 3 This comparative example provides a glove material that differs from Example 1 in that brominated butyl rubber is replaced with an equal amount of nitrile rubber, which was purchased from Jingjiang Kanggaote New Material Technology Co., Ltd. Specifically, the raw material components include the following parts by weight: 100 parts rubber matrix, 4 parts vulcanizing agent, 2 parts magnesium oxide with a particle size of 1~3μm, 8 parts polycaprolactone-modified sodium bentonite, 7 parts chlorinated polyethylene, 2 parts nano zinc oxide with a particle size of 20~30nm, 2 parts polyethylene glycol 400, and 5 parts additives. The rubber matrix comprises the following components by weight percentage: 40% nitrile rubber, 30% acrylate rubber, and 30% chlorosulfonated polyethylene rubber; The preparation method of polycaprolactone-modified sodium bentonite includes the following steps: S1. Polycaprolactone is dissolved in tetrahydrofuran at a mass-to-volume ratio of 10g:100mL to obtain a polycaprolactone mixture. S2. Dry sodium-based bentonite with a particle size of 150~200nm and silane coupling agent KH-550 were added to a polycaprolactone mixture and ultrasonically treated at 40℃ for 50min with a power of 300W and an ultrasonic frequency of 40kHz. After ultrasonication, the product was subjected to vacuum distillation, washing, and drying to obtain polycaprolactone-modified sodium-based bentonite. The mass ratio of sodium-based bentonite to polycaprolactone was 10:5, and the mass ratio of sodium-based bentonite to silane coupling agent was 10:1. The vulcanizing agent consists of zinc salt of 2-thiol benzothiazole and trimethylolpropane trimethacrylate in a mass ratio of 2:1; The additives include zinc stearate and hindered phenolic antioxidants in a 1:1 mass ratio.

[0055] The preparation method of the above glove material is the same as that in Example 1, only the material needs to be replaced, and will not be described again here.

[0056] Example of effect The glove materials prepared in Examples 1-3 and Comparative Examples 1-3 were tested, and the specific test indicators and performance are as follows: The elongation at break was tested in accordance with GB / T 528-2009 "Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber". The elasticity was tested using the tensile rebound method: A dumbbell-shaped specimen of type A (gauge length 25 mm) was prepared, and the initial gauge length L0 was measured; the specimen was stretched at a rate of 50 mm / min to an elongation of 50%, held for 10 s, unloaded, and allowed to stand for 30 s before measuring the recovered gauge length L1.

[0057] Calculate the rebound rate: Rebound rate (%) = [(L1)] L0) / (0.5L0)]×100% (the closer the value is to 0, the better the resilience).

[0058] Results determination: Rebound rate ≤10% is high resilience (almost no permanent deformation), 10%~20% is medium resilience, and >20% is poor resilience (easily loose).

[0059] The specific test results are shown in Table 1: Table 1

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-elasticity, high-toughness glove material, characterized in that, The raw material components include the following parts by weight: 100 parts rubber matrix, 3-4 parts vulcanizing agent, 2-3 parts activator, 8-10 parts reinforcing agent, 5-7 parts toughening agent, 2-4 parts nano zinc oxide, 2-4 parts polyethylene glycol, and 3-5 parts additives. The rubber matrix comprises the following components by weight percentage: 40%~50% brominated butyl rubber, 25%~35% acrylate rubber, and 20%~30% chlorosulfonated polyethylene rubber; The vulcanizing agent includes 2-mercaptobenzothiazole zinc salt and trimethylolpropane trimethacrylate; The reinforcing agent includes polycaprolactone-modified sodium bentonite; The preparation method of the polycaprolactone-modified sodium bentonite includes the following steps: S1. Dissolve polycaprolactone in tetrahydrofuran to obtain a polycaprolactone mixture; S2. Sodium-based bentonite and silane coupling agent are added to a polycaprolactone mixture for reaction to obtain the polycaprolactone-modified sodium-based bentonite.

2. The high-elasticity, high-toughness glove material as described in claim 1, characterized in that, In S1, the mass-to-volume ratio of polycaprolactone to tetrahydrofuran is 10 g: (90~110) mL; In S2, the particle size of the sodium-based bentonite is 150~300nm; In S2, the silane coupling agent is KH-550.

3. The high-elasticity, high-toughness glove material as described in claim 1, characterized in that, In S2, the mass ratio of sodium bentonite to polycaprolactone is 10:(3~5). In S2, the mass ratio of sodium-based bentonite to silane coupling agent is 10:(0.5~1). In S2, the reaction temperature is 40~50℃; In S2, the reaction time is 45-55 minutes.

4. The high-elasticity, high-toughness glove material as described in claim 3, characterized in that, In S2, the reaction is performed using ultrasonic treatment with a power of 300-400W and a frequency of 40kHz.

5. The high-elasticity, high-toughness glove material as described in claim 1, characterized in that, The toughening agent includes chlorinated polyethylene; The particle size of the nano zinc oxide is 20~50nm; The additives include zinc stearate and hindered phenolic antioxidants; The activator includes magnesium oxide.

6. The high-elasticity, high-toughness glove material as described in claim 1 or 5, characterized in that, The vulcanizing agent comprises 2-thiol benzothiazole zinc salt and trimethylolpropane trimethacrylate in a mass ratio of (1.5~2):

1.

7. The high-elasticity, high-toughness glove material as described in claim 1 or 5, characterized in that, The additives include zinc stearate and hindered phenolic antioxidants in a mass ratio of (1~1.5):(0.5~1).

8. A method for preparing a high-elasticity, high-toughness glove material according to any one of claims 1 to 7, characterized in that, Includes the following steps: Step 1: The weighed rubber matrix is ​​subjected to a first internal mixing to obtain a first-mixed rubber. Step 2: After the activator, nano zinc oxide, reinforcing agent, polyethylene glycol and additives are mixed evenly, they are added to the primary internal mixing rubber for a second internal mixing to obtain a secondary internal mixing mixture; Step 3: Add the toughening agent to the secondary intensive mixing mixture and perform a third intensive mixing to obtain a tertiary intensive mixing mixture; Step 4: Add the vulcanizing agent to the three-stage mixing mixture for a fourth mixing and vulcanization to obtain a high-elasticity and high-toughness glove material.

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