An electrically insulating protective shoe and its manufacturing process
By using specific material combinations and processes to manufacture electrically insulating protective shoes, the problem of insufficient abrasion resistance has been solved, achieving the effects of improved abrasion resistance, extended service life, and enhanced safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINGDAO FUKELAI SHOES CO LTD
- Filing Date
- 2024-11-30
- Publication Date
- 2026-06-02
AI Technical Summary
Existing electrically insulating protective shoes lack sufficient abrasion resistance during use, making them susceptible to friction and wear, which leads to a decline in service life and performance.
Electrically insulating protective shoes are made by using a combination of electrical insulating materials, conductive materials, supporting structural materials, and wear-resistant materials in specific proportions, including polymer matrices, reinforcing agents, fillers, conductive polymers, carbon fibers, and synthetic rubber, through mixing, molding, and assembly processes.
It significantly improves the wear resistance of shoes, extends their service life, reduces maintenance costs, ensures stable insulation performance, reduces fatigue, and improves worker safety and work efficiency.
Smart Images
Figure CN122123549A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of insulating protective shoe manufacturing technology, specifically to an electrically insulating protective shoe and its manufacturing process. Background Technology
[0002] With the development of technology, electrical work environments are becoming increasingly complex and diverse. To ensure worker safety, electrically insulating protective shoes have become essential protective equipment. These shoes are typically made of rubber or other insulating materials to provide the necessary electrical insulation properties.
[0003] Traditional electrically insulating protective shoes are typically designed with multiple factors in mind, such as the insulation, abrasion resistance, impact resistance, and slip resistance of the materials. These properties are crucial for maintaining safety in electrical work. In complex electrical environments, insulating protective shoes prevent current from passing through the worker's feet, thus avoiding electric shock accidents.
[0004] However, existing electrically insulating protective shoes still face challenges in some aspects, including the possibility that traditional insulating materials may lack sufficient abrasion resistance, making them susceptible to friction and wear during use, thus reducing their service life and performance. Therefore, those skilled in the art now propose a novel electrically insulating protective shoe and its manufacturing process to address the aforementioned problems. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides an electrically insulating protective shoe and its manufacturing process, solving the problem that existing technologies lack sufficient wear resistance, leading to susceptibility to friction and wear during use, thus reducing service life and performance.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a manufacturing process for electrically insulating protective shoes, comprising the following steps:
[0007] S1, Design phase, determining the purpose and specifications of the shoes;
[0008] S2, Material preparation: Select appropriate electrical insulation materials, conductive materials, supporting structure materials, and wear-resistant materials;
[0009] S3, Material Mixing, used to mix materials;
[0010] S4, Mold making, designing and making shoe molds;
[0011] S5, molding, using molds to shape various materials;
[0012] S6, Assembly, assembling the various molded parts together;
[0013] S7, Shaping treatment, performing shaping treatment on the shoes;
[0014] S8, Inspection and Quality Control, involves conducting electrical insulation tests on finished products and performing appearance and dimensional inspections.
[0015] Preferably, the raw materials include the following weight fractions: 40-60 parts of the electrical insulating material, 20-30 parts of the conductive material, 18-30 parts of the supporting structure material, and 50-70 parts of the wear-resistant material.
[0016] Preferably, the electrical insulating material is any one of a polymer matrix, a reinforcing agent, and a filler, used to provide support for the overall structure and can serve as the basis for the electrical insulating material.
[0017] Preferably, the polymer matrix is any one of polypropylene, polyamide, and polystyrene, the reinforcing agent is any one of glass fiber, carbon fiber, and aramid fiber, and the filler is any one of silicate microspheres and nanoparticles.
[0018] Preferably, the conductive material is any one of conductive polymer, carbon fiber, and conductive rubber, used to form a conductive network.
[0019] Preferably, the conductive polymer is either carbon black or metal powder.
[0020] Preferably, the supporting structure material is any one of polyurethane, polycarbonate, thermoplastic elastomer, or EVA foam, in order to reduce the overall weight of the shoe.
[0021] Preferably, the wear-resistant material is any one of synthetic rubber, polyurethane, or thermoplastic polyurethane, used to improve friction performance and wear resistance.
[0022] Preferably, the synthetic rubber is either nitrile rubber or chloroprene rubber.
[0023] An electrically insulating protective shoe is provided, which is manufactured using the manufacturing process described in this invention. This electrically insulating protective shoe has the advantages of being wear-resistant, lightweight, and low-cost, making it highly economical to use.
[0024] This invention provides an electrically insulating protective shoe and its manufacturing process. It has the following beneficial effects:
[0025] 1. This invention significantly improves the abrasion resistance of new electrically insulating protective shoes by employing advanced abrasion-resistant materials or introducing new reinforcement technologies into traditional materials. This effectively slows down the rate of friction and wear during use, thereby extending the shoes' service life and reducing replacement frequency. Simultaneously, this ensures that the shoes maintain stable insulation performance over extended periods, thereby reducing maintenance costs, improving shoe reliability, and further enhancing worker safety.
[0026] 2. This invention achieves effective weight reduction by introducing advanced lightweight materials or design structures. This improvement allows workers to experience greater comfort and lightness, reducing fatigue caused by prolonged wear, and making them more flexible and convenient when moving and operating. This enables them to better maintain focus and efficiency in their work, and reduces the probability of workplace accidents caused by uncomfortable, excessively heavy shoes. Attached Figure Description
[0027] Figure 1 This is a perspective view of the present invention. Detailed Implementation
[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0029] Example 1:
[0030] Please see the appendix Figure 1 This invention provides a manufacturing process for electrically insulating protective shoes, comprising the following steps:
[0031] S1, Design phase, determining the purpose and specifications of the shoes;
[0032] S2, Material preparation: Select appropriate electrical insulation materials, conductive materials, supporting structure materials, and wear-resistant materials;
[0033] S3, Material Mixing, used to mix materials;
[0034] S4, Mold making, designing and making shoe molds;
[0035] S5, molding, using molds to shape various materials;
[0036] S6, Assembly, assembling the various molded parts together;
[0037] S7, Shaping treatment, performing shaping treatment on the shoes;
[0038] S8, Inspection and Quality Control, involves conducting electrical insulation tests on finished products and performing appearance and dimensional inspections.
[0039] Specifically, when manufacturing electrically insulating protective shoes, the first step is to determine the intended use of the shoes, followed by different shoe sizes. Then, materials are selected for each application to ensure high-performance electrically insulating protective shoes can be manufactured at low cost. The selected materials are then mixed to ensure uniformity and maintain performance. Different types of shoe molds are then created to improve flexibility. The materials are placed on the outside of the molds to allow them to take shape. The various components of the molded shoe are then assembled to form a prototype. Finally, the shoe is finalized and manufactured. Finally, the finished shoes undergo electrical insulation testing to ensure quality and enhance the wearer's walking safety.
[0040] The raw materials include the following weight fractions: 40-60 parts of electrical insulation material, 20-30 parts of conductive material, 18-30 parts of supporting structure material, and 50-70 parts of wear-resistant material.
[0041] Specifically, the material comprises 40 parts of electrical insulation material, 20 parts of conductive material, 18 parts of supporting structural material, and 50 parts of wear-resistant material, enabling the electrically insulating protective shoe to be suitable for various environments and meet different process and application requirements, thus providing high flexibility in use.
[0042] Electrically insulating materials can be any one of polymer matrix, reinforcing agent, or filler, used to provide support for the overall structure and can also serve as the basis for electrical insulating materials.
[0043] Specifically, the polymer matrix is responsible for providing the basic mechanical and chemical properties of the material, the reinforcing agent can improve the mechanical properties of the composite material such as strength, stiffness and wear resistance, and the filler can increase the hardness of the material, reduce weight and improve thermal conductivity.
[0044] The polymer matrix is any one of polypropylene, polyamide, or polystyrene; the reinforcing agent is any one of glass fiber, carbon fiber, or aramid fiber; and the filler is any one of silicate microspheres or nanoparticles.
[0045] Specifically, polypropylene is used as the polymer matrix, which has relatively low cost and is an economical plastic material. It has poor electrical conductivity, average wear resistance, high comfort, and is usually lightweight. Glass fiber reinforcement is used, which has relatively low cost and is an economical fiber material. It also has poor electrical conductivity, average wear resistance, high comfort, and is usually lightweight. Silicate microsphere filler is used, which has relatively low cost and is an economical fiber material. It also has poor electrical conductivity, average wear resistance, high comfort, and is usually lightweight. The results of their cost, electrical conductivity, wear resistance, and comfort are shown in Table 1 below.
[0046] The conductive material is any one of conductive polymer, carbon fiber, and conductive rubber, used to form a conductive network.
[0047] Specifically, using conductive polymers as conductive materials results in high usage costs, good conductivity, good wear resistance, high comfort, and is generally lightweight. The results of usage costs, conductivity, wear resistance, and comfort are shown in Table 1 below.
[0048] The conductive polymer can be either carbon black or metal powder.
[0049] Specifically, carbon black is used as the conductive polymer. It has high usage cost, good conductivity, good wear resistance, high comfort, and is usually lightweight. The results of its usage cost, conductivity, wear resistance, and comfort are shown in Table 1 below.
[0050] The supporting structure material is any one of polyurethane, polycarbonate, thermoplastic elastomer, or EVA foam, used to reduce the overall weight of the shoe.
[0051] Specifically, polyurethane is used as the supporting structural material. Its usage cost is generally low, its electrical conductivity is poor, its wear resistance is excellent, its comfort is relatively high, and it is usually quite soft. The results of its usage cost, electrical conductivity, wear resistance, and comfort are shown in Table 1 below.
[0052] The wear-resistant material is any one of synthetic rubber, polyurethane, or thermoplastic polyurethane, used to improve friction performance and wear resistance. The results of its usage cost, electrical conductivity, wear resistance, and comfort are shown in Table 1 below.
[0053] Specifically, synthetic rubber is used as the wear-resistant material. Its usage cost is generally low, its electrical conductivity is poor, its wear resistance is excellent, its comfort is high, and it is usually soft. The results of its usage cost, electrical conductivity, wear resistance, and comfort are shown in Table 1 below.
[0054] The synthetic rubber is either nitrile rubber or chloroprene rubber.
[0055] Specifically, nitrile rubber is used as the synthetic rubber. Its usage cost is generally low, its electrical conductivity is poor, its wear resistance is excellent, its comfort is high, and it is usually soft. The results of its usage cost, electrical conductivity, wear resistance, and comfort are shown in Table 1 below.
[0056] An electrically insulating protective shoe is disclosed, manufactured using the process described in this invention. This shoe is wear-resistant, lightweight, and low-cost, effectively reducing the rate of friction and wear during use, thereby extending its service life, reducing replacement frequency, and achieving a significant reduction in overall weight. This improvement allows workers to experience greater comfort and lightness, reducing fatigue caused by prolonged wear, and making movement and operation more flexible and convenient.
[0057] Example 2:
[0058] Unlike the above embodiments, this embodiment provides raw materials comprising the following weight fractions: 40 parts of electrical insulating material, 20 parts of conductive material, 30 parts of supporting structural material, and 70 parts of wear-resistant material.
[0059] Specifically, the electrical insulation material uses polyamide as the polymer matrix, which has high cost, average conductivity, average wear resistance, and average comfort. The reinforcing material uses carbon fiber, which has high cost, average conductivity, excellent wear resistance, and relatively high comfort. The filling material uses nanoparticles, which has high cost, high conductivity, excellent wear resistance, and relatively high comfort. The conductive material uses carbon fiber, which has high cost, high conductivity, high wear resistance, and relatively poor comfort. The supporting structure material uses polycarbonate, which has average cost, poor conductivity, average wear resistance, and relatively high comfort. The wear-resistant material uses polyurethane, which has average cost, poor conductivity, average wear resistance, and relatively high comfort. The results for cost, conductivity, wear resistance, and comfort are shown in Table 1 below.
[0060] Comparative Example 1:
[0061] The manufacturing process of the electrically insulating protective shoe used in this comparative example is the same as that in Example 1. The difference is that the electrically insulating material is replaced with polystyrene and the synthetic rubber is replaced with thermoplastic polyurethane in Example 1. The other steps are consistent with the steps and methods in Example 1.
[0062] Specifically, polystyrene as the polymer matrix is a relatively low-cost and economical plastic material, but it has moderate conductivity, poor wear resistance, and moderate comfort. Glass fiber reinforcement is also a relatively low-cost and economical fiber material, but it has relatively poor conductivity, moderate wear resistance, and relatively high comfort, and is usually lightweight. Silicate microsphere fillers are also relatively low-cost and economical fiber materials, but they have relatively poor conductivity, moderate wear resistance, and relatively high comfort, and are usually lightweight. Carbon fiber is used as the conductive material, but it has high cost, high conductivity, high wear resistance, and relatively poor comfort. Polycarbonate is used as the supporting structure material, but it has moderate cost, poor conductivity, moderate wear resistance, and relatively high comfort. Thermoplastic polyurethane is used as the wear-resistant material, but it has high cost, poor conductivity, moderate wear resistance, and relatively moderate comfort. The results of their cost, conductivity, wear resistance, and comfort are shown in Table 1 below.
[0063] Comparative Example 2: The manufacturing process of the electrically insulating protective shoe used in this comparative example is the same as that in Example 1. The difference is that the silicate microsphere filler is replaced with nanoparticles and the glass fiber reinforcing agent is replaced with aramid fiber in Example 1. The other steps are consistent with the steps and methods in Example 1.
[0064] Specifically, polypropylene is used as the polymer matrix, which has relatively low cost and is an economical plastic material. It has poor conductivity, moderate wear resistance, high comfort, and is usually lightweight. Aramid fiber reinforcement has high cost, poor conductivity, high wear resistance, high comfort, and is usually lightweight. Nanoparticle fillers have high cost, are an economical fiber material, have high conductivity, high wear resistance, and high comfort. Conductive materials use conductive polymers, which have high cost, good conductivity, good wear resistance, and high comfort. Polyurethane is used as the supporting structure material, which has moderate cost, poor conductivity, excellent wear resistance, high comfort, and is usually soft. Wear-resistant materials use polyurethane, which has moderate cost, poor conductivity, moderate wear resistance, and high comfort. EVA foam is used as the wear-resistant material, which has low cost, poor conductivity, moderate wear resistance, and good comfort. The results of cost, conductivity, wear resistance, and comfort are shown in Table 1 below.
[0065] Comparative Example 3: The manufacturing process of the electrically insulating protective shoe used in this comparative example is the same as that in Example 1. The difference is that the conductive material is replaced with conductive rubber and the polyurethane is replaced with EVA foam in Example 1. The other steps are consistent with the steps and methods in Example 1.
[0066] Polypropylene as the polymer matrix is a relatively low-cost and economical plastic material. It has poor conductivity, moderate wear resistance, high comfort, and is generally lightweight. Glass fiber reinforcement is also a relatively low-cost and economical fiber material. It also has poor conductivity, moderate wear resistance, high comfort, and is generally lightweight. Silicate microsphere fillers are another relatively low-cost and economical fiber material. Conductive materials using conductive polymers have high costs, good conductivity, good wear resistance, and high comfort. Polyurethane as the supporting structural material has moderate costs, poor conductivity, excellent wear resistance, high comfort, and is generally soft. Polyurethane is also a wear-resistant material with moderate costs, poor conductivity, moderate wear resistance, and high comfort. EVA foam is a wear-resistant material with low costs, poor conductivity, moderate wear resistance, and good comfort. The results for cost, conductivity, wear resistance, and comfort are shown in Table 1 below.
[0067] Table 1
[0068]
[0069]
[0070] Based on the data in Table 1 above, the present invention uses 40 parts of electrical insulating material, 20 parts of conductive material, 30 parts of supporting structural material, and 70 parts of wear-resistant material. It uses polyamide as the polymer matrix, carbon fiber as the reinforcing agent, and nanoparticles as the filler. The conductive material is carbon fiber, the supporting structural material is polycarbonate, and the wear-resistant material is polyurethane. This results in electrically insulating protective shoes with moderate cost, excellent conductivity, excellent wear resistance, and high comfort.
[0071] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A manufacturing process for electrically insulating protective shoes, characterized in that, Includes the following steps: S1, Design phase, determining the purpose and specifications of the shoes; S2, Material preparation: Select appropriate electrical insulation materials, conductive materials, supporting structure materials, and wear-resistant materials; S3, Material Mixing, used to mix materials; S4, Mold making, designing and making shoe molds; S5, molding, using molds to shape various materials; S6, Assembly, assembling the various molded parts together; S7, Shaping treatment, performing shaping treatment on the shoes; S8, Inspection and Quality Control, involves conducting electrical insulation tests on finished products and performing appearance and dimensional inspections.
2. The manufacturing process of an electrically insulating protective shoe according to claim 1, characterized in that, The raw materials include the following weight fractions: 40-60 parts of the electrical insulating material, 20-30 parts of the conductive material, 18-30 parts of the supporting structure material, and 50-70 parts of the wear-resistant material.
3. The manufacturing process of an electrically insulating protective shoe according to claim 2, characterized in that, The electrical insulating material is any one of a polymer matrix, reinforcing agent, or filler, used to provide support for the overall structure and can serve as the basis for the electrical insulating material.
4. The manufacturing process of an electrically insulating protective shoe according to claim 3, characterized in that, The polymer matrix is any one of polypropylene, polyamide, and polystyrene; the reinforcing agent is any one of glass fiber, carbon fiber, and aramid fiber; and the filler is any one of silicate microspheres and nanoparticles.
5. The manufacturing process of an electrically insulating protective shoe according to claim 2, characterized in that, The conductive material is any one of conductive polymer, carbon fiber, and conductive rubber, and is used to form a conductive network.
6. The manufacturing process of an electrically insulating protective shoe according to claim 5, characterized in that, The conductive polymer is either carbon black or metal powder.
7. The manufacturing process of an electrically insulating protective shoe according to claim 2, characterized in that, The supporting structure material is any one of polyurethane, polycarbonate, thermoplastic elastomer, or EVA foam, used to reduce the overall weight of the shoe.
8. The manufacturing process of an electrically insulating protective shoe according to claim 2, characterized in that, The wear-resistant material is any one of synthetic rubber, polyurethane, or thermoplastic polyurethane, used to improve friction performance and wear resistance.
9. The manufacturing process of an electrically insulating protective shoe according to claim 8, characterized in that, The synthetic rubber is either nitrile rubber or chloroprene rubber.
10. An electrically insulating protective shoe, characterized in that, The manufacturing process of an electrically insulating protective shoe as described in any one of claims 1-9.