A material for a multi-functional integrated safety shoe that does not require unplugging and its preparation method

Abstract

The present invention provides a material for a multi-functional integrated safety shoe that does not require unplugging and its preparation method, which relates to the technical field of polymer composites. It is made from the following raw materials in parts by weight: 30-50 parts of D3O material, 40-60 parts of polyurethane elastomer, 0.8-1.5 parts of antioxidant, 1-2 parts of lubricant, 0.1-0.3 parts of initiator, 0.1-0.2 parts of catalyst, 3-5 parts of 2,4,6-trivinylcyclotriboroxane, 1-3 parts of isocyanatoethyl methacrylate, 4-6 parts of cellulose nanocrystals, 0.5-1 part of 2,2'-bis(trifluoromethyl)benzidine diamine, 1-5 parts of foaming agent, and 0.5-1.5 parts of foam stabilizer. The material for the multi-functional integrated safety shoe disclosed by the present invention has excellent aging resistance, good comfort, sufficient resilience, and a long service life.

Description

Technical Field

[0001] The present invention relates to the technical field of polymer composite materials, in particular to a non-pulling multifunctional integrated safety shoe material and a preparation method thereof. Background Art

[0002] The no-pulling multifunctional all-in-one safety shoes can improve the quality of life of the elderly and meet the emergency needs of people in special working environments. They can prevent the elderly with mobility difficulties from suffering from dizziness and brain hypoxia due to bending over to pull out their shoes, and prevent people in special working environments from delaying the best emergency response time due to putting on and pulling out their shoes.

[0003] To achieve the no-removal functionality, the application of intelligent elastomer materials is particularly important. D3O is a special polymer material. Unlike high-strength materials like steel, D3O feels soft under normal conditions but becomes very hard under external forces, providing superior protective properties. Coating an egg with it will render it impervious to hammering. In recent years, it has become a major success in international markets, with hundreds of products incorporating D3O. From mobile phone cases to knee and elbow pads, specialized helmets, bulletproof vests for police and military personnel, and safety shoe caps, D3O has shown great potential for application. However, there are few reports on the application of D3O in no-removal, multifunctional, all-in-one safety shoes. Furthermore, pure D3O still suffers from shortcomings such as impact toughness, aging resistance, and comfort, which require further improvement.

[0004] Existing smart elastomer materials for no-pull, multifunctional, integrated safety shoes often suffer from technical deficiencies such as poor impact strength, insufficient aging resistance, and a need for further improvement in fatigue resistance and comfort. For example, Chinese invention patent application publication number CN109867853A discloses a P4U rubber-plastic composite foam material comprising the following parts by weight: 25-40 parts ethylene-vinyl acetate copolymer, 25-40 parts thermoplastic elastomer, 15-25 parts P4U silicone-based strain-rate-responsive smart material, 5-15 parts anti-wear agent, 5-8 parts filler, 2-5 parts active agent, 0.7-1.2 parts cross-linking agent, 2.5-3.5 parts foaming agent, and 0-10 parts additives. The resulting P4U rubber-plastic composite foam material is soft and comfortable, with excellent cushioning and rebound properties (rebound significantly greater than 60%) and good recovery performance, thus meeting the performance requirements of athletic shoe soles and providing consumers with a long-lasting comfort experience. However, its aging resistance and resilience performance still need to be further improved.

[0005] Therefore, the development of a multifunctional all-in-one safety shoe material with good aging resistance, good comfort, sufficient resilience and long service life and its preparation method meets market demand, has broad market value and application prospects, and is of great significance to promoting the development of the field of safety shoe elastomer toe caps. Summary of the Invention

[0006] The object of the present invention is to overcome the deficiencies of the prior art and provide a material for a multi-functional integrated safety shoe that does not require pulling out, has excellent anti-aging performance, good comfort, sufficient resilience, and a long service life, as well as a preparation method therefor.

[0007] The present invention can be achieved through the following technical solutions:

[0008] A material for a multi-functional integrated safety shoe that does not require pulling out according to the present invention is made from the following raw materials by weight: 30-50 parts of D3O material, 40-60 parts of polyurethane elastomer, 0.8-1.5 parts of antioxidant, 1-2 parts of lubricant, 0.1-0.3 parts of initiator, 0.1-0.2 parts of catalyst, 3-5 parts of 2,4,6-trivinylcyclotriboroxane, 1-3 parts of isocyanatoethyl methacrylate, 4-6 parts of cellulose nanocrystals, 0.5-1 part of 2,2'-bis(trifluoromethyl)benzidine, 1-5 parts of foaming agent, and 0.5-1.5 parts of foam stabilizer.

[0009] Preferably, the foaming agent is at least one of water, cyclopentane, n-pentane, and n-hexane.

[0010] Preferably, the foam stabilizer is a hydroxyl-containing polysiloxane foam stabilizer, which is one or more of Dow Corning DC193, Evonik TEGOSTAB B8930, and MSD M8804.

[0011] Preferably, the cellulose nanocrystals have a length of 100-500 nm and a diameter of 20-100 nm, and are provided by Beijing Naxun Technology Co., Ltd.

[0012] Preferably, the catalyst is at least one of dibutyltin dilaurate DY-12 and organobismuth DY-20.

[0013] Preferably, the initiator is a mixture of tert-butylcumyl peroxide, dicumyl peroxide, and vulcanizing agent bis-25 in a mass ratio of 1:(1-2):(0.8-1.2).

[0014] Preferably, the lubricant is at least one of silicone powder, TAF (modified ethylene bis-fatty acid amide, Suzhou Xingtai Guoguang Chemical Auxiliary Co., Ltd.), and RH-313 (pentaerythritol stearate, Dongguan Jianxing Plastic Products Co., Ltd.).

[0015] Preferably, the antioxidant is at least one of antioxidant 1010, antioxidant 168, and antioxidant 1076.

[0016] Preferably, the polyurethane elastomer is Zhejiang Huafeng HF-1080AL TPU.

[0017] Preferably, the D3O material is a material in the prior art and is a commercially available product invented by British engineer Richard Palmer. It belongs to the category of "expandable foam" materials. It is a single impact-resistant material composed of "intelligent molecules" (a combination of adhesive liquid and a polymer). It can exhibit two mechanical-like states under different gravitational impacts; the D3O material remains in a relaxed state under normal conditions, soft and elastic. Once it is hit or squeezed, the molecules immediately lock with each other, quickly tighten and harden to absorb the external force, forming a protective layer. When the external force disappears, the material will return to its original relaxed and soft-elastic state.

[0018] The present invention also provides a preparation method for the material of the pull-free multi-functional integrated safety shoes, including the following steps: After mixing each raw material evenly by weight, it is extruded through a twin-screw extruder, poured into a mold at 180 - 200 °C, and further foamed for 1 - 2 minutes. After demolding, it is trimmed to obtain the U-shaped material for pull-free multi-functional integrated safety shoes.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: The material for pull-free multi-functional integrated safety shoes involved in the present invention is made of the following raw materials by weight: 30 - 50 parts of D3O material, 40 - 60 parts of polyurethane elastomer, 0.8 - 1.5 parts of antioxidant, 1 - 2 parts of lubricant, 0.1 - 0.3 parts of initiator, 0.1 - 0.2 parts of catalyst, 3 - 5 parts of 2,4,6-trivinylcyclotriboroxane, 1 - 3 parts of isocyanatoethyl methacrylate, 4 - 6 parts of cellulose nanocrystals, 0.5 - 1 part of 2,2'-bis(trifluoromethyl)benzidine, 1 - 5 parts of foaming agent, and 0.5 - 1.5 parts of foam stabilizer. Through the mutual cooperation and joint action of each raw material, the prepared material has excellent aging resistance, good comfort, sufficient resilience, and a long service life; by reasonably selecting the mold, the material is made into a U shape to ensure no displacement after installation and comfortable wearing, achieving the purpose of pull-free shoe wearing; by reasonably selecting the preparation process, the product has a high safety factor, high cost performance, and an environmentally friendly and pollution-free production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the U-shaped material for pull-free multi-functional integrated safety shoes in the embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of the pull-free multi-functional integrated safety shoes in the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0022] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the products of the present invention will be further described in detail below with reference to the embodiments.

[0023] In the following embodiments, the U-shaped multi-functional integrated safety shoe is made of materials as follows Figure 1 in the shape shown in Figure 2 .

[0024] Example 1

[0025] A material for a multi-functional integrated safety shoe that can be worn without taking off, is made of the following raw materials by weight: 30 parts of D3O material, 40 parts of polyurethane elastomer, 0.8 part of antioxidant, 1 part of lubricant, 0.1 part of initiator, 0.1 part of catalyst, 3 parts of 2,4,6-trivinylcyclotriboroxane, 1 part of isocyanatoethyl methacrylate, 4 parts of cellulose nanocrystals, 0.5 part of 2,2'-bis(trifluoromethyl)benzidine diamine, 1 part of foaming agent, 0.5 part of foam stabilizer.

[0026] The foaming agent is water; the foam stabilizer is a hydroxyl-containing polysiloxane foam stabilizer, which is Dow Corning DC193; the length of the cellulose nanocrystals is 100 - 500 nm, and the diameter is 20 - 100 nm, provided by Beijing Naxun Technology Co., Ltd.; the catalyst is dibutyltin dilaurate DY-12; the initiator is a mixture of tert-butylcumyl peroxide, dicumyl peroxide, and vulcanizing agent bis(2,5-dimethyl-2,5-di(tert-butylperoxy)hexane) in a mass ratio of 1:1:0.8; the lubricant is silicone powder; the antioxidant is antioxidant 1010; the polyurethane elastomer is Zhejiang Huafeng HF-1080AL TPU.

[0027] The D3O material is a prior art and is a directly purchasable commodity. It was invented by British engineer Richard Palmer and belongs to the category of "expandable foam" materials. It is a single impact-resistant material composed of "intelligent molecules" (a combination of adhesive liquid and a polymer). It can exhibit two mechanical-like states under different gravitational impacts; the D3O material remains in a relaxed state under normal conditions, soft and elastic. Once impacted or squeezed, the molecules immediately lock with each other, quickly tighten and harden to absorb the external force, forming a protective layer. When the external force disappears, the material will return to its original relaxed and soft elastic state.

[0028] A preparation method for the material of the multi-functional integrated safety shoe that can be worn without taking off includes the following steps: After mixing the raw materials by weight evenly, extrude them through a twin-screw extruder, pour them into a mold at 180 °C, continue to foam for 1 minute, trim after demolding, and obtain the U-shaped multi-functional integrated safety shoe material.

[0029] Example 2 [[ID=2,4]]

[0030] A material for a non-extraction multifunctional integrated safety shoe comprises the following raw materials, measured in parts by weight: 35 parts of D3O material, 45 parts of polyurethane elastomer, 0.9 parts of an antioxidant, 1.2 parts of a lubricant, 0.15 parts of an initiator, 0.13 parts of a catalyst, 3.5 parts of 2,4,6-trivinylboroxine, 1.5 parts of isocyanoethyl methacrylate, 4.5 parts of cellulose nanocrystals, 0.6 parts of 2,2'-bis(trifluoromethyl)diaminobiphenyl, 2 parts of a foaming agent, and 0.8 parts of a foam stabilizer.

[0031] The foaming agent is cyclopentane; the foam stabilizer is a hydroxyl-containing polysiloxane foam stabilizer, which is Evonik TEGOSTAB B8930; the cellulose nanocrystals have a length of 100-500 nm and a diameter of 20-100 nm, and are provided by Beijing Naxun Technology Co., Ltd.; the catalyst is organic bismuth DY-20; the initiator is a mixture of tert-butyl isopropyl peroxide, diisopropyl peroxide, and vulcanizing agent bis 25 in a mass ratio of 1:1.3:0.9; the lubricant is TAF (modified ethylene bis fatty acid amide, Suzhou Xingtai Guoguang Chemical Additive Co., Ltd.); the antioxidant is antioxidant 168; and the polyurethane elastomer is Zhejiang Huafeng HF-1080AL TPU.

[0032] The D3O material is a prior art, commercially available commodity. Invented by British engineer Richard Palmer, it belongs to the category of "expandable foam" materials. It is a single, impact-resistant material composed of "smart molecules" (a combination of viscose and a polymer) that can exhibit two mechanically similar states under different gravitational impacts. Under normal conditions, the D3O material remains relaxed, soft, and elastic. Once impacted or squeezed, the molecules immediately lock together, rapidly tightening and hardening to absorb the external force, forming a protective layer. When the external force disappears, the material will return to its original relaxed, soft and elastic state.

[0033] A method for preparing the non-pull-free multifunctional integrated safety shoe material comprises the following steps: uniformly mixing the raw materials by weight, extruding through a twin-screw extruder, pouring into a mold at 185° C., continuing to foam for 1.2 minutes, and trimming after demoulding to obtain a U-shaped non-pull-free multifunctional integrated safety shoe material.

[0034] Example 3

[0035] A material for a non-extraction multifunctional integrated safety shoe comprises the following raw materials, measured in parts by weight: 40 parts of D3O material, 50 parts of polyurethane elastomer, 1.2 parts of an antioxidant, 1.5 parts of a lubricant, 0.2 parts of an initiator, 0.15 parts of a catalyst, 4 parts of 2,4,6-trivinylboroxine, 2 parts of isocyanoethyl methacrylate, 5 parts of cellulose nanocrystals, 0.8 parts of 2,2'-bis(trifluoromethyl)diaminobiphenyl, 3 parts of a foaming agent, and 1 part of a foam stabilizer.

[0036] The foaming agent is n-pentane; the foam stabilizer is a hydroxyl-containing polysiloxane foam stabilizer, which is Meside M8804; the cellulose nanocrystals have a length of 100-500nm and a diameter of 20-100nm, and are provided by Beijing Naxun Technology Co., Ltd.; the catalyst is dibutyltin dilaurate DY-12; the initiator is a mixture of tert-butyl isopropyl peroxide, diisopropyl peroxide, and vulcanizing agent diisopropyl 25 in a mass ratio of 1:1.5:1; the lubricant is RH-313 (pentaerythritol stearate, Dongguan Jianxing Plastic Products Co., Ltd.); the antioxidant is antioxidant 1076; and the polyurethane elastomer is Zhejiang Huafeng HF-1080AL TPU.

[0037] The D3O material is a prior art, commercially available commodity. Invented by British engineer Richard Palmer, it belongs to the category of "expandable foam" materials. It is a single, impact-resistant material composed of "smart molecules" (a combination of viscose and a polymer) that can exhibit two mechanically similar states under different gravitational impacts. Under normal conditions, the D3O material remains relaxed, soft, and elastic. Once impacted or squeezed, the molecules immediately lock together, rapidly tightening and hardening to absorb the external force, forming a protective layer. When the external force disappears, the material will return to its original relaxed, soft and elastic state.

[0038] A method for preparing the non-pull-free multifunctional integrated safety shoe material comprises the following steps: uniformly mixing the raw materials by weight, extruding through a twin-screw extruder, pouring into a mold at 190° C., continuing to foam for 1.5 minutes, and trimming after demoulding to obtain a U-shaped non-pull-free multifunctional integrated safety shoe material.

[0039] Example 4

[0040] A material for a multi-functional integrated safety shoe that does not require pulling out, which is made of the following raw materials by weight: 45 parts of D3O material, 55 parts of polyurethane elastomer, 1.4 parts of antioxidant, 1.8 parts of lubricant, 0.25 part of initiator, 0.18 part of catalyst, 4.5 parts of 2,4,6-trivinylcyclotriboroxane, 2.5 parts of isocyanatoethyl methacrylate, 5.5 parts of cellulose nanocrystals, 0.9 part of 2,2'-bis(trifluoromethyl)benzidine, 4 parts of foaming agent, 1.4 parts of foam stabilizer.

[0041] The foaming agent is a mixture of water, cyclopentane, n-pentane, and n-hexane in a mass ratio of 1:2:1:3; the foam stabilizer is a hydroxyl-containing polysiloxane foam stabilizer, which is a mixture of Dow Corning DC193, Evonik TEGOSTAB B8930, and MSD M8804 in a mass ratio of 1:3:2; the length of the cellulose nanocrystals is 100-500 nm, and the diameter is 20-100 nm, provided by Beijing Naxun Technology Co., Ltd.; the catalyst is a mixture of dibutyltin dilaurate DY-12 and organic bismuth DY-20 in a mass ratio of 3:5; the initiator is a mixture of tert-butylcumyl peroxide, dicumyl peroxide, and vulcanizing agent bis-25 in a mass ratio of 1:1.8:1.1; the lubricant is a mixture of silicone powder, TAF (modified ethylene bis-fatty acid amide, Suzhou Xingtai Guoguang Chemical Auxiliary Co., Ltd.) or RH-313 (pentaerythritol stearate, Dongguan Jianxing Plastic Products Co., Ltd.) in a mass ratio of 1:2:3; the antioxidant is a mixture of antioxidant 1010, antioxidant 168, and antioxidant 1076 in a mass ratio of 1:3:5; the polyurethane elastomer is Zhejiang Huafeng HF-1080AL TPU.

[0042] The D3O material is a prior art and is a directly purchasable commodity. It is a material invented by British engineer Richard Palmer and belongs to the category of "expansive foam" materials. It is an impact-resistant single material composed of "intelligent molecules" (a combination of adhesive liquid and a polymer). It can exhibit two mechanical-like states under different gravitational impacts; the D3O material remains in a relaxed state under normal conditions, soft and elastic. Once it is hit or squeezed, the molecules immediately lock with each other, quickly tighten and harden to absorb the external force, forming a protective layer. When the external force disappears, the material will return to its original relaxed and soft elastic state.

[0043] A preparation method of the material for the multi-functional integrated safety shoe that does not require pulling out includes the following steps: After mixing the raw materials evenly by weight, extrude through a twin-screw extruder, pour into a mold at 195 °C, continue to foam for 1.8 minutes, trim after demolding, and obtain the U-shaped material for the multi-functional integrated safety shoe that does not require pulling out.

[0044] Example 5

[0045] A material for a multi-functional integrated safety shoe that does not require unplugging is made of the following raw materials by weight: 50 parts of D3O material, 60 parts of polyurethane elastomer, 1.5 parts of antioxidant, 2 parts of lubricant, 0.3 part of initiator, 0.2 part of catalyst, 5 parts of 2,4,6-trivinylcyclotriboroxane, 3 parts of isocyanatoethyl methacrylate, 6 parts of cellulose nanocrystals, 1 part of 2,2'-bis(trifluoromethyl)benzidine diamine, 5 parts of foaming agent, and 1.5 parts of foam stabilizer.

[0046] The foaming agent is n-hexane; the foam stabilizer is a hydroxyl-containing polysiloxane foam stabilizer, which is Dow Corning DC193; the length of the cellulose nanocrystals is 100 - 500 nm, and the diameter is 20 - 100 nm, provided by Beijing Naxun Technology Co., Ltd.; the catalyst is organic bismuth DY-20; the initiator is composed of tert-butylcumyl peroxide, dicumyl peroxide, and vulcanizing agent bis-25 mixed in a mass ratio of 1:2:1.2; the lubricant is TAF (modified ethylene bis-fatty acid amide, Suzhou Xingtai Guoguang Chemical Auxiliary Co., Ltd.); the antioxidant is antioxidant 1010; the polyurethane elastomer is Zhejiang Huafeng HF-1080AL TPU.

[0047] The D3O material is a prior art and is a directly purchasable commodity. It is a material invented by British engineer Richard Palmer and belongs to the category of "expandable foam" materials. It is an impact-resistant single material composed of "intelligent molecules" (a combination of adhesive liquid and a polymer). It can exhibit two mechanical-like states under different gravitational impacts; the D3O material remains in a relaxed state under normal conditions, soft and elastic. Once it is hit or squeezed, the molecules immediately lock with each other, quickly tighten and harden to absorb the external force, forming a protective layer. When the external force disappears, the material will return to its original relaxed and soft-elastic state.

[0048] A preparation method of the material for the multi-functional integrated safety shoe that does not require unplugging includes the following steps: After mixing the raw materials evenly by weight, extrude through a twin-screw extruder, pour into a mold at 200 °C, continue to foam for 2 minutes, trim after demolding, and obtain a U-shaped material for the multi-functional integrated safety shoe that does not require unplugging.

[0049] Comparative Example 1

[0050] A material for a multi-functional integrated safety shoe that does not require unplugging has a formulation and preparation method basically the same as those in Example 1, except that 2,4,6-trivinylcyclotriboroxane is not added, and an equal amount of D3O material is used to replace the polyurethane elastomer.

[0051] Comparative Example 2

[0052] A material for a multi-functional integrated safety shoe that does not require pulling out, its formulation and preparation method are basically the same as those of Example 1, except that cellulose nanocrystals are not added, and an equal amount of polyurethane elastomer is used to replace the D3O material.

[0053] At the same time, in order to evaluate the specific technical effects of the material for the multi-functional integrated safety shoe that does not require pulling out described in the present invention, relevant performance tests were carried out on the materials for the multi-functional integrated safety shoe in the examples and comparative examples of the present invention. The test results are shown in Table 1, and the test methods are as follows:

[0054] (1) Comfort: Select 10 volunteers in each group, with each example and comparative example being a group. Try on the safety shoes made of the material for the multi-functional integrated safety shoe in each group. After wearing for 3 days, score their comfort. The full score is 10 points, and the average score of the 10 people in the same group is used as the score of the group.

[0055] (2) Resilience: Test according to GB / T1681-2009.

[0056] (3) Heat aging resistance: Place the products of each example in an artificial accelerated aging box at 90°C for 120 h. After taking them out, test the resilience again according to the method of resilience in (2). The heat aging resistance is measured by the retention rate of resilience. The larger the value, the better the heat aging resistance.

[0057] Table 1

[0058] Item Comfort (score) Resilience (%) Heat aging resistance (%) Example 1 10 88 98.32 Example 2 10 91 98.54 Example 3 10 93 98.85 Example 4 10 94 99.11 Example 5 10 96 99.54 Comparative Example 1 9.1 76 95.37 Comparative Example 2 8.6 73 96.82

[0059] It can be seen from Table 1 that the material for the multi-functional integrated safety shoe disclosed in the examples of the present invention has better resilience and heat aging resistance compared with the comparative examples, and better wearing comfort; the addition of 2,4,6-trivinylcyclotriboroxane, D3O material, polyurethane elastomer and cellulose nanocrystals is beneficial to improving the above properties.

[0060] The above is only the preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention; any ordinary technical personnel in this industry can smoothly implement the present invention according to the above; however, any slight changes, modifications and evolutions made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A material for multi-functional integrated safety shoes that do not need to be unplugged, characterized in that, It is made from the following raw materials by weight: 30-50 parts of D3O material, 40-60 parts of polyurethane elastomer, 0.8-1.5 parts of antioxidant, 1-2 parts of lubricant, 0.1-0.3 parts of initiator, 0.1-0.2 parts of catalyst, 3-5 parts of 2,4,6-trivinylcyclotriboroxane, 1-3 parts of isocyanatoethyl methacrylate, 4-6 parts of cellulose nanocrystals, 0.5-1 part of 2,2'-bis(trifluoromethyl)benzidine, 1-5 parts of foaming agent, and 0.5-1.5 parts of foam stabilizer.

2. The material for the multi-functional integrated safety shoes that do not need to be unplugged according to claim 1, characterized in that, The foaming agent is at least one of water, cyclopentane, n-pentane, and n-hexane.

3. The multi-functional integrated safety shoe material that does not need to be unplugged as described in claim 1, characterized in that, The foam stabilizer is a hydroxyl-containing polysiloxane foam stabilizer, which is one or more of Dow Corning DC193, Evonik TEGOSTAB B8930, and Mest Chemicals M8804.

4. The material for the multi-functional integrated safety shoes that do not need to be unplugged according to claim 1, wherein, The length of the cellulose nanocrystals is 100-500 nm, and the diameter is 20-100 nm.

5. The multi-functional integrated safety shoe material that does not require unplugging according to claim 1, characterized in that, The catalyst is at least one of dibutyltin dilaurate DY-12 and organobismuth DY-20.

6. The material for a multi-functional integrated safety shoe that does not require unplugging, as described in claim 1, is characterized in that The initiator is a mixture of tert-butylcumyl peroxide, dicumyl peroxide, and vulcanizing agent bis-25 in a mass ratio of 1:(1-2):(0.8-1.2).

7. The material for a multi-functional integrated safety shoe that does not require unplugging, as described in claim 1, is characterized in that The lubricant is silicone powder, modified ethylene bis-fatty acid amide TAF, or pentaerythritol stearate RH-313.

8. The multi-functional integrated safety shoe material that does not require unplugging according to claim 1, characterized in that, The antioxidant is at least one of antioxidant 1010, antioxidant 168, and antioxidant 1076.

9. The material for a multi-functional integrated safety shoe that does not require unplugging according to claim 1, characterized in that, The polyurethane elastomer is Zhejiang Huafeng HF-1080AL TPU.

10. A preparation method for the material of a multi-functional integrated safety shoe that does not require unplugging as described in any one of claims 1-9, characterized in that, It includes the following steps: After mixing the raw materials evenly by weight, extrude them through a twin-screw extruder, pour them into a mold at 180-200 °C, continue to foam for 1-2 minutes, trim after demolding, and obtain the material for U-shaped multi-functional one-piece safety shoes that do not require pulling out.

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