Materials and manufacturing methods used in shoes

Abstract

In the field of polymer composite materials technology, we provide a component for use in safe, multi-functional, and integrally insertable shoes, as well as a method for manufacturing the same. [Solution] The component used in the insertable, multi-functional, integrated, and safe shoe is composed of the following raw materials mixed in the following weight ratios: D3O (registered trademark) from Design Blue, UK: 30.0-50.0 parts, polyurethane elastomer: 40.0-60.0 parts, antioxidant: 0.8-1.5 parts, lubricant: 1.0-2.0 parts, initiator: 0.1-0.3 parts, catalyst: 0.1-0.2 parts, 2,4,6-trivinylboroxine: 3.0-5.0 parts, methacryloyloxyethyl isocyanate: 1.0-3.0 parts, cellulose nanocrystal: 4.0-6.0 parts, 2,2'-bis(trifluoromethyl)diaminobiphenyl: 0.5-1.0 parts, foaming agent: 1.0-5.0 parts, foam stabilizer: 0.5-1.5 parts. [Effects] It has excellent heat resistance, is comfortable and resilient, and has a long lifespan.

Description

Technical Field

[0001] The present invention belongs to the technical field of polymer composite materials, and particularly relates to a member used for a multi-functional integrated and safe shoe that can be inserted, and a manufacturing method thereof.

Background Art

[0002] China has already entered a stage of severe aging, and this trend is intensifying. By around 2035, the elderly population is expected to exceed 400 million. Therefore, realizing healthy aging and improving the quality of life and happiness of the elderly have been incorporated into the overall plan of the country's economic and social development and the sustainable development strategy. Furthermore, many people, such as doctors, nurses, care staff in hospitals, caregivers in care facilities and homes, yuejie (Chinese for "sister of the month", a woman specializing in postpartum care), chefs and service staff in restaurants, etc., are required to respond quickly in special environments. Under such circumstances, there has been a need for a member used for a multi-functional integrated and safe shoe that can be inserted. Safe shoes can improve the quality of life of the elderly, enable quick response in special working environments, and prevent some organ disorders caused by falls, dizziness, and oxygen deficiency when the elderly put on and take off shoes. Also, by spending time on putting on and taking off shoes in a special working environment, it can prevent missing the optimal emergency response time.

[0003] For easy foot insertion, the application of a multi-functional elastomer material is particularly important. D3O (registered trademark) is a special polymer material that is soft in the normal state but becomes very hard when an external force is applied, and exhibits excellent protective performance. When an egg is wrapped with D3O (registered trademark), it will not break even when hit with a hammer. In recent years, D3O (registered trademark) has attracted great attention in the overseas market and has shown great achievements in a wide range of fields, such as smartphone cases, knee pads, elbow pads, special helmets, bulletproof vests for police and military, and covers for the toes of safety shoes. However, there are very few reports in the shoe market of D3O® being applied to safe, multi-functional, integrated shoe components that can be easily inserted. Furthermore, D3O (registered trademark) had the drawback of requiring improvements in impact resistance, degradation resistance, and comfort.

[0004] Furthermore, the multi-functional elastomers currently used in safe, one-piece, and easily insertable shoe components suffer from technical shortcomings, including insufficient impact resistance, inadequate degradation resistance, and the need for improved fatigue resistance and comfort. For example, Chinese Patent Publication No. CN109867853A (Patent Document 1) discloses a rubber-plastic composite foam material called P4U (trade name) with the following weight distribution: 25-40 parts ethylene-vinyl acetate copolymer, 25-40 parts thermoplastic elastomer, 15-25 parts P4U functional silicon-based stress-responsive smart material, 5-15 parts abrasion resistant agent, 5-8 parts filler, 2-5 parts activator, 0.7-1.2 parts crosslinking agent, 2.5-3.5 parts foaming agent, and 0-10 parts additives. The combination of the above components results in a rubber-plastic composite foam material that is flexible, comfortable, and possesses excellent cushioning and resilience (rebound rate of 60% or more), as well as good recovery performance. Therefore, it can meet the performance requirements for sports shoe soles and provide consumers with lasting comfort. However, improvements in degradation resistance and rebound performance were still needed. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] China Public Gazette No. 109867853 [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] The challenge to be addressed is to develop components and manufacturing methods for safe, multi-functional, integrated shoes that offer superior degradation resistance, high comfort, good resilience, a long service life, and are easily insertable. Solving this challenge is of great importance in meeting market demand, having broad market value and application prospects, and promoting the development of safe, multi-functional, integrated shoes that are easily insertable. [Means for solving the problem]

[0007] The present invention aims to overcome the problems of the prior art and provide a component for use in safe, multi-functional, integrated shoes that is highly resistant to deterioration, comfortable, has sufficient resilience, and a long service life, as well as a method for manufacturing the same. This invention can be realized by the following technical means. In other words, the components used in the insertable, multi-functional, integrated, and safe shoe according to the present invention consist of the following raw materials in the following weight ratios: D3O(registered trademark) 30.0 to 50.0 parts, polyurethane elastomer: 40.0 to 60.0 parts, antioxidant: 0.8 to 1.5 parts, lubricant: 1.0 to 2.0 parts, initiator: 0.1 to 0.3 parts, catalyst: 0.1 to 0.2 parts, 2,4,6-trivinylboroxine: 3.0 to 5.0 parts, methacryloyloxyethyl isocyanate: 1.0 to 3.0 parts, cellulose nanocrystal: 4.0 to 6.0 parts, 2,2'-bis(trifluoromethyl)diaminobiphenyl: 0.5 to 1.0 parts, foaming agent: 1.0 to 5.0 parts, foam stabilizer: 0.5 to 1.5 parts.

[0008] The foaming agent may preferably be at least one of water, cyclopentane, norpentane, or norhexane.

[0009] The foam stabilizer may preferably be one or more of the following hydroxyl group-containing polysiloxane foam stabilizers: DC193 from Dow Corning, USA; TEGOSTAB® B8930 from Evonik, Germany; and M8804 from Meista Chemical, China.

[0010] The cellulose nanocrystals preferably have a length of 100.0 to 500.0 nm and a diameter of 20.0 to 100.0 nm. The cellulose nanocrystals are from NanoAce Technology Co., Ltd., China.

[0011] The catalyst may preferably be at least one of dibutyltin dilaurate (DY-12) or organobismuth (DY-20).

[0012] The initiator should preferably be a mixture of tert-butylcumyl peroxide, dicumyl peroxide, and 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane (=Chinese name: Sulfurizer Double 25) in a weight ratio of 1:1 to 2:0.8 to 1.2.

[0013] The lubricant may preferably be silicone powder, modified ethylenebis-fatty acid amide (TAF from Xintai Guoguan Chemical Oxylally Co., Ltd., China), or pentaerythritol tetrastearate (RH-313 from Jensin Plastic Products Co., Ltd., China).

[0014] The antioxidant may preferably be at least one of the following: pentaerythritol tetrakis (=Chinese name: Anti-qi agent 1010), tris(2,4-di-tert-butylphenyl) phosphite (=Chinese name: Anti-qi agent 168), or dibutylhydroxyphenylpropionate stearyl ester (=Chinese name: Anti-qi agent 1076).

[0015] The polyurethane elastomer may preferably be the polyurethane thermoplastic elastomer HF-1080AL TPU from China-Zekkoukaho Co., Ltd.

[0016] D3O® is an existing technology and a product that can be purchased directly. It is a type of "expandable foam" material invented by British engineer Richard Palmer. D3O® is normally soft and elastic, but when subjected to impact or pressure, the intermolecular bonds instantly lock, making it hard and absorbing external forces to form a protective layer. When the external force disappears, it returns to its original soft and elastic state.

[0017] Furthermore, the present invention provides a method for manufacturing insertable, multi-functional, integrated, and safe shoe components, which involves uniformly mixing each material in the specified weight ratios, extruding it with a twin-screw extruder, pouring it into a mold at 180-200°C, allowing it to foam for 1-2 minutes, demolding, and then trimming it to form a U-shape. [Effects of the Invention]

[0018] The present invention has beneficial effects. The present invention can provide a component for use in a safe, multi-functional, integrated shoe that is easily insertable. To this end, the present invention has a configuration comprising the following materials in their respective weight ratios. Specifically, the ingredients are: D3O(registered trademark) from Design Blue, UK: 30.0 to 50.0 parts; polyurethane elastomer: 40.0 to 60.0 parts; antioxidant: 0.8 to 1.5 parts; lubricant: 1.0 to 2.0 parts; initiator: 0.1 to 0.3 parts; catalyst: 0.1 to 0.2 parts; 2,4,6-trivinylboroxine: 3.0 to 5.0 parts; methacryloyloxyethyl isocyanate: 1.0 to 3.0 parts; cellulose nanocrystals: 4.0 to 6.0 parts; 2,2'-bis(trifluoromethyl)diaminobiphenyl: 0.5 to 1.0 parts; foaming agent: 1.0 to 5.0 parts; foam stabilizer: 0.5 to 1.5 parts. Due to the interaction of the above materials, the manufactured component (of the present invention) has excellent degradation resistance, high comfort, sufficient resilience, and a long service life. By selecting an appropriate mold, the component is molded into a U-shape, preventing shifting when attached to a shoe, ensuring comfort during wear, and reducing the effort required to put on and take off shoes. Furthermore, by selecting an appropriate manufacturing process, the product has a high safety factor, excellent cost performance, and the production process is environmentally friendly and non-polluting.

Brief Description of the Drawings

[0019] [Figure 1] (a) and (b) are schematic views of the members used in the insertable multi-functional integrated and safe shoes in the embodiments of the present invention. [Figure 2] (a) and (b) are schematic views of the insertable multi-functional integrated and safe shoes in the embodiments of the present invention.

Modes for Carrying Out the Invention

[0020] For those skilled in the art to better understand the technical means of the present invention, the products of the present invention will be described in more detail in the following embodiments.

[0021] In the following embodiments, the U-shaped member used in the insertable multi-functional integrated and safe shoes is formed into the shape of FIG. 1, and the insertable multi-functional integrated and safe shoes are shown in FIG. 2.

[0022] (Example 1) The member used in the insertable multi-functional integrated and safe shoes of Example 1 has a composition having the following materials in each weight ratio. · D3O (registered trademark) of Design Blue, UK: 30.0 parts · Polyurethane elastomer: 40.0 parts · Antioxidant: 0.8 part · Lubricant: 1.0 part · Initiator: 0.1 part · Catalyst: 0.1 part · 2,4,6-Trivinylboroxin: 3.0 parts · Methacryloyloxyethyl isocyanate: 1.0 part · Cellulose nanocrystal: 4.0 parts · 2,2'-Bis(trifluoromethyl)diaminobiphenyl: 0.5 part · Blowing agent: · Foam stabilizer: 0.5 part

[0023] Water was used as the blowing agent above. The foam stabilizers used were a hydroxyl group-containing polysiloxane foam stabilizer and DC193 from Dow Corning, Inc. of the United States. The cellulose nanocrystals mentioned above have a length of 100.0 to 500.0 nm and a diameter of 20.0 to 100.0 nm, and were sourced from NanoAce Technology Co., Ltd. in China. The catalyst used was dibutyltin dilaurate (DY-12). The above initiator was a mixture of tert-butylcumyl peroxide, dicumyl peroxide, and 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane (Chinese name: sulfurizer 25) in a weight ratio of 1:1:0.8. The above lubricant uses silicone powder. The antioxidant used was pentaerythritol tetrakis (Chinese name: Anti-qi agent 1010). The polyurethane elastomer used was HF-1080AL TPU, a polyurethane-based thermoplastic elastomer from Zekkoukaho Co., Ltd., China.

[0024] D3O (a registered trademark of Design Blue Ltd., UK) is an existing technology and a product that can be purchased directly. It is a material developed by British engineer Richard Palmer and belongs to the category of "expandable foam" materials. D3O (registered trademark) is an impact-absorbing material composed of "multifunctional molecules" (mucus and polymer compounds) that exhibits two mechanical modes under different gravitational impacts. Under normal conditions, it remains loose, soft, and elastic, but when subjected to impact or pressure, the intermolecular bonds instantly lock, quickly tightening and hardening to absorb external forces and form a protective layer. Once the external force is gone, it returns to its original loose and soft state.

[0025] The manufacturing method involves uniformly mixing each material in the specified weight ratio, extruding it using a twin-screw extruder, pouring it into a mold at 180°C, allowing it to foam for one minute, and then trimming it after demolding to obtain a U-shaped, insertable, multi-functional, one-piece component for use in safe shoes.

[0026] (Example 2) The component used in the insertable, multi-functional, integrated, and safe shoe of Example 2 has the following composition, comprising each of the following materials in their respective weight ratios. • Design Blue, UK: D3O (registered trademark): 35.0 copies • Polyurethane elastomer: 45.0 parts • Antioxidants: 0.9 parts Lubricant: 1.2 parts • Initiator: 0.15 parts • Catalyst: 0.13 parts · 2,4,6-Trivinylboroxine: 3.5 parts • Methacryloyloxyethyl isocyanate: 1.5 parts • Cellulose nanocrystals: 4.5 parts · 2,2'-Bis(trifluoromethyl)diaminobiphenyl: 0.6 parts • Foaming agent: 2.0 parts • Foam stabilizer: 0.8 parts

[0027] The foaming agent used was cyclopentane. The foam stabilizer used was TEGOSTAB® B8930, a hydroxyl group-containing polysiloxane foam stabilizer from Evonik GmbH in Germany. The cellulose nanocrystals mentioned above have a length of 100.0 to 500.0 nm and a diameter of 20.0 to 100.0 nm, and were sourced from NanoAce Technology Co., Ltd. in China. The catalyst used was organic bismuth (DY-20). The initiator used was a mixture of tert-butylcumyl peroxide, dicumyl peroxide, and 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane (=Chinese name: Sulfurizer Double 25) in a weight ratio of 1:1.3:0.9. The above lubricant used was modified ethylenebis-fatty acid amide (TAF from Xintai Guoguan Chemical Oxylally Co., Ltd., China). The antioxidant used was tris(2,4-di-tert-butylphenyl) phosphite (=Chinese name: Anti-qi agent 168). The polyurethane elastomer used was HF-1080AL TPU, a polyurethane-based thermoplastic elastomer from Zekkoukaho Co., Ltd., China.

[0028] D3O (a registered trademark of Design Blue Ltd., UK) is an existing technology and a product that can be purchased directly. It is a material developed by British engineer Richard Palmer and belongs to the category of "expandable foam" materials. D3O (registered trademark) is an impact-absorbing material composed of "multifunctional molecules" (mucus and polymer compounds) that exhibits two mechanical modes under different gravitational impacts. Under normal conditions, it remains loose, soft, and elastic, but when subjected to impact or pressure, the intermolecular bonds instantly lock, quickly tightening and hardening to absorb external forces and form a protective layer. Once the external force is gone, it returns to its original loose and soft state.

[0029] The manufacturing method involves uniformly mixing each material in the specified weight ratio, extruding it using a twin-screw extruder, pouring it into a mold at 185°C, allowing it to foam for 1.2 minutes, and then trimming it after demolding to obtain a U-shaped, insertable, multi-functional, one-piece component for use in safe shoes.

[0030] (Example 3) The component used in the insertable, multi-functional, integrated, and safe shoe of Example 3 has the following materials in the respective weight ratios. • Design Blue, UK: D3O (registered trademark): 40.0 copies • Polyurethane elastomer: 50.0 parts • Antioxidants: 1.2 parts Lubricant: 1.5 parts • Initiator: Part 0.2 • Catalyst: 0.15 parts · 2,4,6-Trivinylboroxine: 4.0 parts • Methacryloyloxyethyl isocyanate: 2.0 parts • Cellulose nanocrystals: 5.0 parts · 2,2'-Bis(trifluoromethyl)diaminobiphenyl: 0.8 parts • Foaming agent: 3.0 parts • Foam stabilizer: 1.0 part

[0031] The foaming agent used was norpentane. The foam stabilizer described above is a polysiloxane foam stabilizer containing a hydroxyl group, specifically M8804 from Meista Chemical Co., Ltd., China. The cellulose nanocrystals mentioned above have a length of 100.0 to 500.0 nm and a diameter of 20.0 to 100.0 nm, and were sourced from NanoAce Technology Co., Ltd. in China. The catalyst used was dibutyltin dilaurate (DY-12). The above initiator used was a mixture of tert-butylcumyl peroxide, dicumyl peroxide, and 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane (=Chinese name: Sulfurizer Double 25) in a weight ratio of 1:1.5:1. The lubricant used was pentaerythritol tetrastearate (RH-313 from Jensin Plastic Products Co., Ltd., China). The antioxidant used was dibutylhydroxyphenylpropionic acid stearyl ester (=Chinese name: Anti-qi agent 1076). The polyurethane elastomer used was HF-1080AL TPU, a polyurethane-based thermoplastic elastomer from Zekkoukaho Co., Ltd., China.

[0032] D3O (a registered trademark of Design Blue Ltd., UK) is an existing technology and a product that can be purchased directly. It is a material developed by British engineer Richard Palmer and belongs to the category of "expandable foam" materials. D3O (registered trademark) is an impact-absorbing material composed of "multifunctional molecules" (mucus and polymer compounds) that exhibits two mechanical modes under different gravitational impacts. Under normal conditions, it remains loose, soft, and elastic, but when subjected to impact or pressure, the intermolecular bonds instantly lock, quickly tightening and hardening to absorb external forces and form a protective layer. Once the external force is gone, it returns to its original loose and soft state.

[0033] The manufacturing method involves uniformly mixing each material in the specified weight ratio, extruding it using a twin-screw extruder, pouring it into a mold at 190°C, allowing it to foam for 1.5 minutes, and then trimming it after demolding to obtain a U-shaped, insertable, multi-functional, one-piece component for use in safe shoes.

[0034] (Example 4) The component used in the insertable, multi-functional, integrated, and safe shoe of Example 4 has the following materials in the respective weight ratios. • Design Blue, UK: D3O (registered trademark): 45.0 copies • Polyurethane elastomer: 55.0 parts • Antioxidant: 1.4 parts Lubricant: 1.8 parts • Initiator: 0.25 copies • Catalyst: 0.18 parts · 2,4,6-Trivinylboroxine: 4.5 parts • Methacryloyloxyethyl isocyanate: 2.5 parts • Cellulose nanocrystals: 5.5 parts · 2,2'-Bis(trifluoromethyl)diaminobiphenyl: 0.9 parts • Foaming agent: 4.0 parts • Foam stabilizer: 1.4 parts

[0035] The foaming agent used was a mixture of water, cyclopentane, norpentane, and norhexane in a weight ratio of 1:2:1:3. The foam stabilizer described above is a polysiloxane foam stabilizer containing a hydroxyl group, and was a mixture of DC193 from Dow Corning (USA), TEGOSTAB® B8930 from Evonik (Germany), and M8804 from Meista Chemical (China) in a weight ratio of 1:3:2. The cellulose nanocrystals mentioned above have a length of 100.0-500.0 nm and a diameter of 20.0-100.0 nm, and were sourced from NanoAce Technology Co., Ltd. in China. The catalyst used was a mixture of dibutyltin dilaurate (DY-12) and organobismuth (DY-20) in a weight ratio of 3:5. The initiator used was a mixture of tert-butylcumyl peroxide, dicumyl peroxide, and 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane (=Chinese name: Sulfurizer Double 25) in a weight ratio of 1:1.8:1.1. The above lubricant was a mixture of silicone powder, silicone powder, modified ethylenebis-fatty acid amide (TAF from Xintai Guoguan Chemical Oxylally Co., Ltd., China) or pentaerythritol tetrastearate (RH-313 from Jensin Plastic Products Co., Ltd., China) in a weight ratio of 1:2:3. The antioxidant used was a mixture of pentaerythritol tetrakis (=Chinese name: Anti-qi agent 1010), tris(2,4-di-tert-butylphenyl) phosphite (=Chinese name: Anti-qi agent 168), and dibutylhydroxyphenylpropionate stearyl ester (=Chinese name: Anti-qi agent 1076) in a weight ratio of 1:3:5. The polyurethane elastomer used was HF-1080AL TPU, a polyurethane-based thermoplastic elastomer from Zekkoukaho Co., Ltd., China.

[0036] D3O (a registered trademark of Design Blue Ltd., UK) is an existing technology and a product that can be purchased directly. It is a material developed by British engineer Richard Palmer and belongs to the category of "expandable foam" materials. D3O (registered trademark) is an impact-absorbing material composed of "multifunctional molecules" (mucus and polymer compounds) that exhibits two mechanical modes under different gravitational impacts. Under normal conditions, it remains loose, soft, and elastic, but when subjected to impact or pressure, the intermolecular bonds instantly lock, quickly tightening and hardening to absorb external forces and form a protective layer. Once the external force is gone, it returns to its original loose and soft state.

[0037] The manufacturing method involves uniformly mixing each material in the specified weight ratio, extruding it using a twin-screw extruder, pouring it into a mold at 195°C, allowing it to foam for 1.8 minutes, and then trimming it after demolding to obtain a U-shaped, insertable, multi-functional, one-piece component for use in safe shoes.

[0038] (Example 5) The component used in the insertable, multi-functional, integrated, and safe shoe of Example 5 has the following materials in the respective weight ratios. • Design Blue, UK: D3O (registered trademark): 50.0 copies • Polyurethane elastomer: 60.0 parts • Antioxidant: 1.5 parts Lubricant: 2.0 parts • Initiator: Part 0.3 • Catalyst: 0.2 parts · 2,4,6-Trivinylboroxine: 5.0 parts • Methacryloyloxyethyl isocyanate: 3.0 parts • Cellulose nanocrystals: 6.0 parts · 2,2'-Bis(trifluoromethyl)diaminobiphenyl: 1.0 part • Foaming agent: 5.0 parts • Foam stabilizer: 1.5 parts

[0039] The foaming agent used above was norhexane. The foam stabilizer used was a polysiloxane foam stabilizer containing a hydroxyl group, specifically DC193 from Dow Corning, Inc. of the United States. The cellulose nanocrystals mentioned above have a length of 100.0 to 500.0 nm and a diameter of 20.0 to 100.0 nm, and were sourced from NanoAce Technology Co., Ltd. in China. The catalyst used was organic bismuth (DY-20). The initiator used was a mixture of tert-butylcumyl peroxide, dicumyl peroxide, and 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane (=Chinese name: Sulfurizer Double 25) in a weight ratio of 1:2:1.2. The above lubricant used was modified ethylenebis-fatty acid amide (TAF from Xintai Guoguan Chemical Oxylally Co., Ltd., China). The antioxidant used was pentaerythritol tetrakis (Chinese name: Anti-qi agent 1010). The polyurethane elastomer used was HF-1080AL TPU, a polyurethane-based thermoplastic elastomer from Zekkoukaho Co., Ltd., China.

[0040] D3O (a registered trademark of Design Blue Ltd., UK) is an existing technology and a product that can be purchased directly. It is a material developed by British engineer Richard Palmer and belongs to the category of "expandable foam" materials. D3O (registered trademark) is an impact-absorbing material composed of "multifunctional molecules" (mucus and polymer compounds) that exhibits two mechanical modes under different gravitational impacts. Under normal conditions, it remains loose, soft, and elastic, but when subjected to impact or pressure, the intermolecular bonds instantly lock, quickly tightening and hardening to absorb external forces and form a protective layer. Once the external force is gone, it returns to its original loose and soft state.

[0041] The manufacturing method involves uniformly mixing each material in the specified weight ratio, extruding it using a twin-screw extruder, pouring it into a mold at 200°C, allowing it to foam for 2.0 minutes, and then trimming it after demolding to obtain a U-shaped, insertable, multi-functional, one-piece component for use in safe shoes.

[0042] (Proportional Relations 1) Proportional ratio 1 differs from Example 1 in that it does not contain 2,4,6-triethylbilchloroboxylane, and the polyurethane elastomer (40.0 parts in Example 1) is replaced with an equal amount of D3O®.

[0043] (Proportional Relations 2) Proportional ratio 2 differs from Example 1 in that it does not contain cellulose nanocrystals, and the D3O (registered trademark) (30.0 parts in Example 1) is replaced with an equal amount of polyurethane elastomer.

[0044] To evaluate the specific technical effects of the insertable, multi-functional, integrated, and safe shoe component of the present invention, performance tests were conducted on embodiments and proportionality of the present invention, and the test results are shown in Table 1. The test method is as follows. (1) Comfort: Ten volunteers were selected for each group, and each implementation was grouped according to its proportion. Each group tried on shoes fitted with insertable, multi-functional, integrated, and safe shoe components, wore them for three days, and then evaluated their comfort on a scale of 1 to 10. The average score of the 10 volunteers in each group was obtained. (2) Rebound properties: Based on GB / T1681-2009 (*). *GB / T1681-2009: A specification in China for measuring the rebound elasticity of rubber under all forms of impact within a narrow range of impact strain and strain rate. (3) Heat degradation resistance: Each product was placed in an artificial accelerated degradation chamber at 90°C for 120 hours, then removed and tested again using the rebound method as in (2). The retention rate of rebound was used as an indicator of heat degradation resistance, with a higher value indicating better heat degradation resistance.

[0045] [Table 1]

[0046] As can be seen from Table 1, the shoes fitted with the insertable, multi-functional, integrated, and safe shoe components disclosed in the embodiments of the present invention exhibit superior resilience and heat degradation resistance compared to proportional models, and provide a more comfortable wearing experience. The addition of 2,4,6-triethylbilchloroboxylane, D3O®, polyurethane elastomer, and cellulose nanocrystals contributes to these improvements in performance.

[0047] The foregoing are merely preferred embodiments of the present invention and are not intended to impose any limitations of any kind on the present invention. A person ordinary in the art can easily implement the present invention based on the above description. A person skilled in the art can make some changes and modifications using the disclosed technical content without departing from the technical scope of the present invention, and all such changes and modifications are considered equivalent embodiments of the present invention. Furthermore, equivalent changes and modifications within the technical scope of the present invention are covered by the protection of the technical scope of the present invention.

Claims

1. A multi-functional, integrated, and safe shoe component made by mixing the following materials in their respective weight ratios. • UK – Design Blue Ltd.'s D3O®: 30.0 to 50.0 copies • Polyurethane elastomer: 40.0 to 60.0 parts Antioxidants: 0.8 to 1.5 parts Lubricant: 1.0 to 2.0 parts Initiator: 0.1 to 0.3 parts Catalyst: 0.1 to 0.2 parts • 2,4,6-Trivinylboroxine: 3.0 to 5.0 parts • Methacryloyloxyethyl isocyanate: 1.0 to 3.0 parts Cellulose nanocrystals: 4.0 to 6.0 parts • 2,2'-Bis(trifluoromethyl)diaminobiphenyl: 0.5 to 1.0 parts • Foaming agent: 1.0 to 5.0 parts • Foam stabilizer: 0.5 to 1.5 parts

2. The foaming agent comprises at least one of water, cyclopentane, norpentane, and norhexane, as described in claim 1, an insertable, multi-functional, integrated, and safe shoe component.

3. The foam stabilizer is an insertable, multi-functional, integrated, and safe shoe component according to claim 1, comprising one or more of the following: a hydroxyl group-containing polysiloxane foam stabilizer, DC193 from Dow Corning Corporation (USA), TEGOSTAB® B8930 from Evonik GmbH (Germany), and M8804 from Meista Chemical Co., Ltd. (China).

4. The cellulose nanocrystal is an insertable, multi-functional, integrated, and safe shoe component according to claim 1, wherein the cellulose nanocrystal has a length of 100.0 to 500.0 nm and a diameter of 20.0 to 100.0 nm.

5. The catalyst is an insertable, multi-functional, integrated, and safe shoe component according to claim 1, comprising at least one of dibutyltin dilaurate (DY-12) and organic bismuth (DY-20).

6. The initiator is a component for use in an insertable, multi-functional, and safe shoe according to claim 1, which is obtained by mixing tert-butylcumyl peroxide, dicumyl peroxide, and 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane (=Chinese name: Sulfurizer Double 25) in a weight ratio of 1:1 to 2:0.8 to 1.

2.

7. The insertable, multi-functional, integrated, and safe shoe component according to claim 1, wherein the lubricant is silicone powder, modified ethylenebis-fatty acid amide (TAF from Xintai Guoguan Chemical Oxylally Co., Ltd., China) or pentaerythritol tetrastearate (RH-313 from Jensin Plastic Products Co., Ltd., China).

8. The aforementioned antioxidant is at least one of pentaerythritol tetrakis (= Chinese name: Anti-aircraft agent 1010), tris(2,4-di-tert-butylphenyl) phosphite (= Chinese name: Anti-aircraft agent 168), and dibutylhydroxyphenylpropionate stearyl ester (= Chinese name: Anti-aircraft agent 1076), as described in claim 1, an insertable, multi-functional, integrated, and safe shoe component.

9. The aforementioned polyurethane elastomer is HF-1080AL TPU, a polyurethane thermoplastic elastomer from China, as described in claim 1, and is a removable, multi-functional, integrated, and safe shoe component.

10. A method for manufacturing a component for use in an insertable, multi-functional, integrated, and safe shoe according to any one of claims 1 to 9, comprising: uniformly mixing each of the materials in the respective weight ratios; extruding the mixture with a twin-screw extruder; pouring it into a mold at 180 to 200°C; foaming it for 1 to 2 minutes; and trimming it after demolding to form a U-shape.

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