Multi-layer composite anti-corrosion glove
By designing multi-layer composite corrosion-resistant gloves, the problems of low reaction rate and operator safety threats in the production of dichlorosulfonylimide were solved, achieving a highly efficient protective effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-03-31
AI Technical Summary
The existing bischlorosulfonamide production process suffers from low reaction rate, long reaction time, and low production capacity, and operators face the dual threats of high-temperature burns, low-temperature frostbite, and chemical corrosion.
A multi-layer composite anti-corrosion glove was designed, comprising an outer protective structure, a middle composite structure, and an inner bonding structure. It uses materials such as polytetrafluoroethylene film, nitrile rubber, Kevlar fiber woven layer, polyurethane breathable membrane, aramid fiber knitted layer, and fluororubber matrix, combined with hot melt adhesive, sewing thread, and silicone cushioning bumps to form comprehensive protection.
It provides comprehensive corrosion resistance, high strength, wear resistance, antibacterial properties and breathability, meeting the protection needs of different working environments and improving the safety and comfort of operators.
Smart Images
Figure CN224055406U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical production protection technology, and more specifically to a multi-layer composite anti-corrosion glove. Background Technology
[0002] With the increasing market demand for bis(fluorosulfonyl)imide, a novel electrolyte for lithium-ion batteries, in recent years, the production process of its raw material, bis(fluorosulfonyl)imide, has become increasingly important. The most valuable production method currently is to further produce bis(fluorosulfonyl)imide through fluorine-chlorine exchange of bis(chlorosulfonyl)imide. Bis(chlorosulfonyl)imide is currently the intermediate in the mainstream process for lithium bis(fluorosulfonyl)imide.
[0003] Currently, the mainstream production process for bischlorosulfonylimide involves synthesizing aminosulfonic acid, chlorosulfonic acid, and thionyl chloride in a batch reactor. The advantages of this production system are that the entire reaction process is controllable and can achieve a high conversion rate. However, the disadvantages are that this reaction is a liquid-solid phase reaction; since aminosulfonic acid is a solid, the reaction is heterogeneous, resulting in a relatively slow reaction time. Even after 24 hours of reaction, there will still be residual aminosulfonic acid solids. Furthermore, the reaction rate is low, the reaction time is too long, the production capacity is too low, and it is not conducive to industrial scale-up.
[0004] The production process of dichlorosulfonamide uses medium-pressure steam, low-pressure steam, and high-temperature heat transfer oil. Direct contact with high-temperature substances, containers, pipe walls, or steam can easily cause heat-related injuries. Conversely, the production process uses Freon refrigerant. Direct contact with low-temperature substances, containers, or pipe walls can easily cause frostbite.
[0005] The production process of dichlorosulfonamide involves corrosive materials such as chlorosulfonic acid, thionyl chloride, aminosulfonic acid, hydrochloric acid, liquid alkali, ammonia (HCl), and SO2. The combined use of medium-pressure steam and Freon refrigerant exposes operators to the dual threat of both high-temperature burns and low-temperature frostbite. Damage to pipelines, valves, and storage tanks, or improper operation, can lead to material leaks. Without adequate safety protection, contact with these leaks can cause chemical burns, corrode equipment and structures, and pollute the environment. During the transport of these materials, leaks in storage tanks, pipelines, and fittings can also cause chemical burns to workers. During equipment maintenance, if corrosive materials are not properly cleaned, contact with them can cause chemical burns, corrode equipment, and pollute the environment. Utility Model Content
[0006] The purpose of this invention is to provide a multi-layer composite anti-corrosion glove to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model employs the following technical means:
[0008] A multi-layer composite corrosion-resistant glove includes a glove body comprising an outer protective structure, a middle composite structure, and an inner bonding structure. The outer protective structure is composed of a polytetrafluoroethylene film and a nitrile rubber layer. The middle composite structure includes a Kevlar fiber woven layer, a polyurethane breathable membrane, and an aramid fiber knitted layer. The Kevlar fiber woven layer and the polyurethane breathable membrane are bonded together with hot melt adhesive, and the polyurethane breathable membrane and the aramid fiber knitted layer are connected by sewing thread. The inner bonding structure is composed of a fluororubber matrix. The glove body has a wrist adjustment component at the wrist, which includes a tightening member for securing the wrist.
[0009] Furthermore, the thickness of the polytetrafluoroethylene film in the outer protective structure is 0.05-0.08 mm, and the thickness of the nitrile rubber layer is 0.3-0.5 mm.
[0010] Furthermore, the surface of the outer protective structure is provided with a protective layer formed by vulcanizing a fluororubber solution coated on the outer surface of a polytetrafluoroethylene film at 120°C. The thickness of the protective layer is 0.1-0.2 mm. The fingertip area of the outer protective structure is superimposed with a 0.5-0.8 mm fluororubber reinforcing layer. The fluororubber reinforcing layer is formed with micron-level anti-slip texture using a three-dimensional laser engraving process.
[0011] Furthermore, the Kevlar fiber braided layer and the polyurethane breathable membrane are formed by hot-pressing a 200D Kevlar fiber braided layer and a 35% porosity polyurethane breathable membrane to create a pore size gradient distribution structure, with a surface pore size of 5μm and a bottom pore size of 0.8μm.
[0012] Furthermore, the aramid fiber knitted layer has a strength of 80 g / m². 2 The aramid fiber knitted substrate is treated with antibacterial agents and formed into a three-dimensional palm-shaped cavity through double needle bed jacquard knitting.
[0013] Furthermore, the fluororubber matrix has silicone buffer bumps on its surface, with a bump height of 2-3 mm, and the silicone buffer bumps are distributed in the finger joint and metacarpophalangeal joint areas.
[0014] Furthermore, the fluororubber matrix incorporates an aramid fiber reinforcing mesh with a density of 180 g / m². 2 The mesh size is 3mm × 3mm.
[0015] Furthermore, the back of the glove body is provided with an elastic silicone pleated structure with an elongation rate of ≥300% and the pleat depth adaptively changes with the joint flexion angle.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] This invention integrates multiple properties such as corrosion resistance, high strength, wear resistance, antibacterial properties, breathability, and slip resistance, which can meet the diverse needs of protective gloves in different working environments and provide users with comprehensive protection. Attached image description:
[0018] Figure 1 This is a schematic diagram of the product structure in an embodiment of this utility model;
[0019] Figure 2 This is a schematic cross-sectional view of the product in an embodiment of this utility model;
[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the product in an embodiment of this utility model. Detailed implementation method:
[0021] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. The following embodiments and drawings are only used to more clearly illustrate the technical solution of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. The drawings only schematically show the parts related to the technical solution of this application, and do not represent their actual structure as a product.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.
[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0024] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0025] In this embodiment, a multi-layer composite anti-corrosion glove includes a glove body 100, which includes an outer protective structure 110, a middle composite structure 120, and an inner bonding structure 130. The outer protective structure 110 is composed of a polytetrafluoroethylene film 111 and a nitrile rubber layer 112. The middle composite structure 120 includes a Kevlar fiber woven layer 121, a polyurethane breathable membrane 122, and an aramid fiber knitted layer 123. The Kevlar fiber woven layer 121 and the polyurethane breathable membrane 122 are bonded together with hot melt adhesive, and the polyurethane breathable membrane 122 and the aramid fiber knitted layer 123 are connected by sewing thread. The inner bonding structure 130 is composed of a fluororubber matrix. The wrist of the glove body 100 is provided with a wrist adjustment component 200, which includes a tightening member 210 for tightening the wrist.
[0026] In one or more possible embodiments of this utility model, the thickness of the polytetrafluoroethylene film 111 in the outer protective structure 110 is 0.05-0.08 mm, and the thickness of the nitrile rubber layer 112 is 0.3-0.5 mm. In specific implementation, the polytetrafluoroethylene film 111 is a polytetrafluoroethylene nanofiber membrane with a porosity of 85%. It is blended and vulcanized with nitrile rubber at a volume ratio of 3:7 to form a gradient structure. The surface is plasma-grafted with perfluorooctylsilane, and the contact angle is ≥150°. It has excellent chemical penetration resistance. Under the ASTM F739 standard, the penetration time of 98% concentrated sulfuric acid at 25°C is >480 min.
[0027] In one or more possible embodiments of this utility model, the surface of the outer protective structure 110 is provided with a protective layer 113 formed by vulcanizing a fluororubber solution coated on the outer surface of a polytetrafluoroethylene film 111 at 120°C. The thickness of the protective layer 113 is 0.1-0.2 mm. A 0.5-0.8 mm fluororubber reinforcing layer 114 is superimposed on the fingertip portion of the outer protective structure 110. The fluororubber reinforcing layer 114 is formed with micron-level anti-slip texture using a three-dimensional laser engraving process. The outer protective structure 110 consists of a polytetrafluoroethylene film 111 and a nitrile rubber layer 11. The 2-composite structure combines polytetrafluoroethylene (PTFE) with good chemical stability and corrosion resistance, and nitrile rubber (NBR) with good chemical corrosion resistance. The combination of the two effectively resists the erosion of various chemical substances. In addition, the outer layer is provided with a protective layer 113 formed by vulcanization of fluororubber solution and a fluororubber reinforcing layer 114 at the fingertips, which further enhances the corrosion resistance. The fluororubber reinforcing layer 114 is formed with micron-level anti-slip texture using a three-dimensional laser engraving process, which can greatly increase the friction between the glove and the surface of the object, allowing the user to grip the object more firmly during operation, thereby improving work efficiency and safety.
[0028] In one or more possible embodiments of this utility model, the Kevlar fiber braided layer 121 and the polyurethane breathable membrane 122 are formed by hot-pressing a 200D Kevlar fiber braided layer 121 and a 35% porosity polyurethane breathable membrane 122 to form a pore size gradient distribution structure. The surface pore size is 5μm and the bottom pore size is 0.8μm. The Kevlar fiber braided layer 121 in the middle composite structure 120 has high strength, high toughness and good wear resistance, which can effectively resist the puncture and friction of sharp objects and improve the service life of gloves. The polyurethane breathable membrane 122 has good breathability, which can allow moisture inside the glove to be discharged in time. At the same time, the pore size gradient distribution structure formed by the Kevlar fiber braided layer 121 and the polyurethane breathable membrane 122 is conducive to air circulation, keeping the user's hands dry and comfortable.
[0029] In one or more possible embodiments of this utility model, the aramid fiber knitted layer 123 has a strength of 80 g / m². 2 The aramid fiber knitted substrate is treated with antibacterial agents and formed into a three-dimensional palm-shaped cavity through double needle bed jacquard knitting. It can better fit the contour of the hand, provide a comfortable wearing experience, reduce hand fatigue, effectively inhibit bacterial growth, maintain a hygienic environment inside the glove, and reduce odor caused by bacterial growth and its impact on the user's health.
[0030] In one or more possible embodiments of this utility model, the fluororubber matrix is provided with silicone buffer bumps 131 on its surface, the bumps being 2-3mm high. The silicone buffer bumps 131 are distributed in the finger joints and metacarpophalangeal joints. The silicone buffer bumps 131 provided in the finger joints and metacarpophalangeal joints can provide cushioning protection during joint movement, preventing injury to the hands.
[0031] In one or more possible embodiments of this utility model, the fluororubber matrix incorporates an aramid fiber reinforcing mesh, the aramid fiber reinforcing mesh having a density of 180 g / m². 2 The mesh size is 3mm×3mm, which further improves the overall strength and tear resistance of the gloves, making them more robust and durable while providing corrosion protection, and able to withstand greater external forces and pressures. In other embodiments of this utility model, the fluororubber matrix is a microporous matrix, and the fluororubber matrix is embedded with a 3D woven nickel-titanium shape memory alloy fiber mesh with a wire diameter of 0.1mm, a mesh density of 200 mesh, and a phase transition temperature set at 32℃, which has excellent dynamic energy absorption rate.
[0032] In one or more possible embodiments of this utility model, the back of the glove body 100 is provided with an elastic silicone pleated structure 140 with an elongation rate ≥300% and the pleat depth adaptively changes with the joint flexion angle, which can well adapt to the bending and extension of the hand joint, without restricting the movement of the hand, allowing the user to perform various operations flexibly.
[0033] Of course, in one or more possible embodiments of this utility model, a moisture-absorbing and breathable inner lining layer is also provided, which is made of polyester fiber and silver ion antibacterial yarn blended together in a ratio of 6:4, and has a moisture permeability ≥5000g / m² after treatment with a hydrophilic finishing agent. 2 • 24h, further improving glove wearing comfort, reducing hand fatigue, ensuring hand temperature rise <2℃ and humidity accumulation <15g / m² after 2 hours of wear. 2 .
[0034] In some extended embodiments of this utility model, to further enhance the functionality of the product, a miniature air pump can be embedded in the inner side of the wrist of the glove body 100, and an annular airbag embedded in the wrist is provided. The annular airbag is connected to the miniature air pump through an air guide tube, and the annular airbag and the air guide tube are connected by a quick-connect connector. The miniature air pump has a built-in MEMS pressure sensor and is equipped with a Bluetooth 5.0 module to connect with a mobile APP, realizing AI algorithm matching of airbag pressure and hand size. The specific circuit board is encapsulated in a waterproof cavity set on the glove body 100, so that the wrist contact pressure is adjustable from 0.02-0.05MPa, which can prevent media backflow. In addition, silicon carbide wear-resistant particles with a particle size of 50μm and a density of 20 particles / cm are implanted in the palm area. 2 It is anchored to the fiber gaps using epoxy resin.
[0035] The specific embodiments disclosed in this utility model fall within the protection scope of the claims of this utility model and are specific subordinate implementations of the feature parts of this utility model. The protection content of the specific embodiments is merely an explanation of the protection scope of the claims of this utility model. The protection scope of this utility model is not limited to the protection content of the specific embodiments, and the protection content of the specific embodiments should not be construed as a limitation on the protection scope of the claims of this utility model.
Claims
1. A multi-layered composite anti-corrosion glove comprising a glove body (100), characterized in that: The glove body (100) comprises an outer protective structure (110), a middle composite structure (120) and an inner fitting structure (130), the outer protective structure (110) is composed of a polytetrafluoroethylene film (111) and a butyronitrile rubber layer (112), the middle composite structure (120) comprises a Kevlar fiber woven layer (121), a polyurethane breathable film (122) and an aramid fiber knitted layer (123), the Kevlar fiber woven layer (121) is bonded with the polyurethane breathable film (122) through hot melt adhesive, the polyurethane breathable film (122) is connected with the aramid fiber knitted layer (123) through overlock stitching, and the inner fitting structure (130) is composed of a fluororubber matrix, and the wrist part of the glove body (100) is provided with a wrist adjusting assembly (200) comprising a tightening member (210) for tightening the wrist part.
2. A multi-layer composite anti-corrosion glove according to claim 1, wherein: The thickness of the polytetrafluoroethylene film (111) in the outer protective structure (110) is 0.05-0.08mm, and the thickness of the butyronitrile rubber layer (112) is 0.3-0.5mm.
3. The multi-layer composite anti-corrosion glove of claim 1, wherein: The surface of the outer protective structure (110) is provided with a protective layer (113) formed by a fluororubber solution coated on the outer surface of the polytetrafluoroethylene film (111) and vulcanized at 120℃, the thickness of the protective layer (113) is 0.1-0.2mm, and the fingertip part of the outer protective structure (110) is overlapped with a 0.5-0.8mm fluororubber reinforcing layer (114), and the fluororubber reinforcing layer (114) is formed with micron-level anti-slip lines by a three-dimensional laser engraving process.
4. The multi-layer composite anti-corrosion glove of claim 1, wherein: The Kevlar fiber woven layer (121) and the polyurethane breathable film (122) are a 200D Kevlar fiber woven layer (121) and a 35% porosity polyurethane breathable film (122) which are hot-pressed and combined to form a pore size gradient distribution structure, the surface layer has a pore size of 5μm and the bottom layer has a pore size of 0.8μm.
5. The multi-layer composite anti-corrosion glove of claim 1, wherein: The aramid fiber knit layer (123) is 80 g / m 2 The aramid fiber knit base material is treated with an antibacterial agent and formed into a three-dimensional palm-shaped cavity by double needle bed jacquard knitting.
6. The multi-layer composite anti-corrosion glove of claim 1, wherein: The fluororubber matrix is provided with a silica gel buffer bump (131) on the surface, the bump height is 2-3mm, and the silica gel buffer bump (131) is distributed in the finger joints and metacarpophalangeal joint areas.
7. The multi-layer composite anti-corrosion glove of claim 1, wherein: The fluororubber matrix is embedded with aramid fiber reinforced net, the aramid fiber reinforced net is 180g / m 2 , and the mesh size is 3mmx3mm.
8. The multi-layer composite anti-corrosion glove of claim 1, wherein: The fluororubber matrix is a microporous matrix, and the fluororubber matrix is embedded in a 3D woven nickel-titanium shape memory alloy fiber net with a wire diameter of 0.1mm and a mesh density of 200 meshes.
9. The multi-layer composite anti-corrosion glove of claim 1, wherein: The glove body (100) is provided with an elastic silica gel wrinkle structure (140) on the back, the tensile rate is ≥300%, and the wrinkle depth changes adaptively with the joint flexion angle.