阅读说明：本技术 一种环保型超轻抗菌鞋材及其制备方法 (Environment-friendly ultra-light antibacterial shoe material and preparation method thereof ) 是由 谢友亮 谢小纯 于 2020-11-26 设计创作，主要内容包括：本发明公开了鞋材技术领域的一种环保型超轻抗菌鞋材及其制备方法,本发明以ETPU颗粒作为鞋材的基材,生产出来的鞋材质轻、回弹性能佳,且后续生产简单,节能环保；本发明通过制得包裹有抗菌机的微胶囊,相较于将抗菌材料直接涂布在鞋材表面的传统方式,微胶囊更加耐磨,并且制备微胶囊的壳聚糖具有杀灭细菌的作用,加上抗菌剂为具有抗真菌效果的药物,使得鞋材抗菌效果更好,配合微胶囊在一定压力等条件下才会破碎释放出抗菌剂,达到了缓释、长效的作用；本发明制备微胶囊的原料为壳聚糖和阿拉伯胶,原料取材天然,更加环保,对环境和人体没有危害。(The invention discloses an environment-friendly ultralight antibacterial shoe material and a preparation method thereof in the technical field of shoe materials, the ETPU particles are used as base materials of the shoe materials, the produced shoe materials are light in weight and good in resilience performance, and the subsequent production is simple, energy-saving and environment-friendly; compared with the traditional mode of directly coating an antibacterial material on the surface of a shoe material, the microcapsule coated with the antibacterial machine is more wear-resistant, chitosan for preparing the microcapsule has the function of killing bacteria, and the antibacterial agent is a medicine with an antifungal effect, so that the shoe material has a better antibacterial effect, and the microcapsule is matched to be broken under the conditions of certain pressure and the like to release the antibacterial agent, so that the slow-release and long-acting effects are achieved; the raw materials for preparing the microcapsule are chitosan and Arabic gum, the raw materials are natural, so that the microcapsule is more environment-friendly and has no harm to the environment and human bodies.)

1. An environment-friendly ultralight antibacterial shoe material is characterized by comprising a wear-resistant layer and an antibacterial layer; the antibacterial layer comprises 300 parts by mass of ETPU particles and 15-20 parts by mass of microcapsules; the microcapsule comprises the following substances: 20-30 parts of chitosan aqueous solution, 120 parts of Arabic gum solution, 2.5-5 parts of antibacterial agent, 1.5-2.5 parts of sodium hydroxide solution, 2.5-4 parts of cross-linking agent and 150 parts of distilled water.

2. The environment-friendly ultralight antibacterial shoe material according to claim 1, characterized in that: the material of the wear-resistant layer is ETPU particles.

3. The environment-friendly ultralight antibacterial shoe material according to claim 1, characterized in that: the mass fraction of the chitosan aqueous solution is 1-10%.

4. The environment-friendly ultralight antibacterial shoe material according to claim 1, characterized in that: the mass fraction of the Arabic gum solution is 1-10%.

5. The environment-friendly ultralight antibacterial shoe material according to claim 1, characterized in that: the antibacterial agent is at least one of terbinafine hydrochloride ointment, clotrimazole ointment and ketoconazole ointment.

6. The environment-friendly ultralight antibacterial shoe material according to claim 1, characterized in that: the volume concentration of the sodium hydroxide solution is 0.1 mol/L.

7. The environment-friendly ultralight antibacterial shoe material according to claim 1, characterized in that: the cross-linking agent is one of diisopropylbenzene hydroperoxide, 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide and glutaraldehyde.

8. The environment-friendly ultra-light antibacterial shoe material according to claim 1, wherein the preparation method of the shoe material comprises the following steps:

(1) preparing microcapsules: mixing the gum arabic solution with negative charges and an antibacterial agent in a reaction container, carrying out water bath at 35-45 ℃, and stirring for 4-6 min; dripping positively charged chitosan water solution, water bathing at 35-45 deg.C, stirring for 12-16 min; adding equal volume of isothermal distilled water for dilution, and stirring uniformly; adjusting the pH value of the stirred solution to 6.8-7.2 by using a sodium hydroxide solution, and continuously stirring to perform complex coacervation reaction; taking the reaction container out of the water bath, putting the reaction container into an ice-water mixture, and cooling to 0-10 ℃; dripping a cross-linking agent for cross-linking and curing, and stirring to obtain a curing liquid for reacting for 25-32 min; after the reaction is finished, carrying out suction filtration, washing and freeze drying on the product to obtain a microcapsule;

(2) preparing a wear-resistant layer: adding 300 parts of 250-one ETPU particles into a mold of a sole forming machine, and introducing 65-70 ℃ steam into the mold to melt the ETPU particles to serve as a wear-resistant layer of the shoe material;

(3) preparing an antibacterial layer: uniformly mixing 15-20 parts of microcapsules and 250-300 parts of ETPU particles, adding the mixture into a mold of a sole forming machine, and introducing 65-70 ℃ steam into the mold for melting to be used as an antibacterial layer of a shoe material;

(4) roughening the top surface of the wear-resistant layer and the bottom surface of the antibacterial layer of the shoe material at 20-30 ℃, coating JL-6280 glue, airing for 5-8min, aligning and combining the glue-coated surfaces of the wear-resistant layer and the antibacterial layer, and compacting for 1-2 h.

Technical Field

The invention relates to the technical field of shoe materials, in particular to an environment-friendly ultralight antibacterial shoe material and a preparation method thereof.

Background

Clothes and eating habits are indispensable parts of life, China is a large population country, light industry is developed, and nature has higher requirements on the performance of shoes. Traditionally, people wear shoes to protect feet from being injured, but nowadays, people have various occupations, lives are rich and colorful, different application scenes have different requirements on the performance of the shoes, and the shoes are mainly light and comfortable when worn in daily life.

As a sole material widely applied in recent years, the polyurethane thermoplastic foaming particles (ETPU) have excellent resilience, strong impact absorption capacity, excellent ageing resistance and weather resistance compared with rubber soles, and the processing process is environment-friendly and efficient. However, feet sweat after wearing the shoes for a long time, fungi are easily propagated in a large amount, not only the shoes have serious peculiar smell, but also consumers can suffer from diseases such as beriberi and the like, and the social life and physical and psychological health of people are seriously affected. Therefore, the surface function of the polyurethane material is modified, so that the produced sole has antibacterial performance, and the competitiveness of the product is improved. At present, the antibacterial products in China relate to the fields of household appliances, building materials, textiles and the like, and the industrialization speed of the antibacterial products enters a motorway, so that the preparation of products with good antibacterial stability and lasting antibacterial property becomes a hot point.

The traditional inorganic antibacterial material is easy to wear and lose, the effect is not durable enough, the fact that chitosan has stronger anti-fungal shape is well known, and chitosan is a product of chitin, and a large amount of chitin exists in the structures such as carapace of marine arthropod such as shrimp and crab, carapace of insect, algae cell membrane and the like, so the chitin is a renewable resource, and the chitosan is also commercially produced. The antibacterial microcapsule is a micro container which is prepared by taking a high polymer material as a wall material and coating one or more antibacterial agents, and the antibacterial mechanism is that the microcapsule breaks the capsule wall or accelerates the diffusivity of the capsule wall to release due to the change of the external temperature, the pressure and the like in the later application, so that the aim of sterilization is fulfilled.

Disclosure of Invention

The invention aims to adopt light ETPU as a base material of a shoe material, and prepare a microcapsule by wrapping an antibacterial agent with a natural environment-friendly material by a re-coagulation method to prepare a more wear-resistant antibacterial material capable of being slowly released so as to provide a long-acting antibacterial effect.

In order to achieve the purpose, the invention provides the following technical scheme: an environment-friendly ultralight antibacterial shoe material comprises a wear-resistant layer and an antibacterial layer; the antibacterial layer comprises 300 parts by mass of ETPU particles and 15-20 parts by mass of microcapsules; the microcapsule comprises the following substances: 20-30 parts of chitosan aqueous solution, 120 parts of Arabic gum solution, 2.5-5 parts of antibacterial agent, 1.5-2.5 parts of sodium hydroxide solution, 2.5-4 parts of cross-linking agent and 150 parts of distilled water.

Preferably, in the environment-friendly ultralight antibacterial shoe material, the wear-resistant layer is made of ETPU particles.

Preferably, in the environment-friendly ultralight antibacterial shoe material, the mass fraction of the chitosan aqueous solution is 1-10%.

Preferably, in the environment-friendly ultralight antibacterial shoe material, the mass fraction of the Arabic gum solution is 1-10%.

Preferably, in the environment-friendly ultra-light antibacterial shoe material, the antibacterial agent is at least one of terbinafine hydrochloride ointment, clotrimazole ointment and ketoconazole ointment.

Preferably, in the environment-friendly ultra-light antibacterial shoe material, the volume concentration of the sodium hydroxide solution is 0.1 mol/L.

Preferably, in the environment-friendly ultralight antibacterial shoe material, the cross-linking agent is one of dicumyl peroxide, 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide and glutaraldehyde.

The preparation method of the environment-friendly ultralight antibacterial shoe material comprises the following steps:

(1) preparing microcapsules: mixing the gum arabic solution with negative charges and an antibacterial agent in a reaction vessel, carrying out water bath at 35-45 ℃, and stirring for 4-6 min; dripping positively charged chitosan water solution, water bathing at 35-45 deg.C, stirring for 12-16 min; adding equal volume of isothermal distilled water for dilution, and stirring uniformly; adjusting the pH value of the stirred solution to 6.8-7.2 by using a sodium hydroxide solution, and continuously stirring to enable the solution to generate a complex coacervation reaction; taking the reaction container out of the water bath, putting the reaction container into an ice-water mixture, and cooling to 0-10 ℃; dripping a cross-linking agent for cross-linking and curing, and stirring to obtain a curing liquid for reacting for 25-32 min; after the reaction is finished, carrying out suction filtration, washing and freeze drying on the product to obtain a microcapsule;

(2) preparing a wear-resistant layer: adding 300 parts of 250-one ETPU particles into a mold of a sole forming machine, introducing 65-70 ℃ steam into the mold to melt the ETPU particles, and performing compression forming to obtain a wear-resistant layer of the shoe material;

(3) preparing an antibacterial layer: uniformly mixing 15-20 parts of microcapsules and 250-300 parts of ETPU particles, adding the mixture into a mold of a sole forming machine, introducing 65-70 ℃ steam into the mold for melting, and then pressing and forming to obtain an antibacterial layer of the shoe material;

(4) roughening the top surface of the wear-resistant layer and the bottom surface of the antibacterial layer of the shoe material at 20-30 ℃, coating JL-6280 glue, airing for 5-8min, aligning and combining the glue-coated surfaces of the wear-resistant layer and the antibacterial layer, and compacting for 1-2 h.

Compared with the prior art, the invention has the beneficial effects that:

1. the ETPU particles are used as the base material of the shoe material, and the produced shoe material has light weight, good resilience, simple subsequent production, energy conservation and environmental protection.

2. Compared with the traditional mode of directly coating the antibacterial material on the surface of the shoe material, the microcapsule coated with the antibacterial machine is more wear-resistant, the chitosan for preparing the microcapsule has the function of killing bacteria, and the antibacterial agent is a medicine with the antifungal effect, so that the shoe material has better antibacterial effect, and the microcapsule is matched to be broken under certain pressure and other conditions to release the antibacterial agent, thereby achieving the effects of slow release and long acting.

3. The raw materials for preparing the microcapsule are chitosan and Arabic gum, the raw materials are natural, so that the microcapsule is more environment-friendly and has no harm to the environment and human bodies.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used for describing the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.

FIG. 1 is a schematic view of the shoe material of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-wear-resistant layer, 2-antibacterial layer and 3-microcapsule.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

An environment-friendly ultralight antibacterial shoe material comprises a wear-resistant layer and an antibacterial layer, wherein the antibacterial layer comprises 250 parts of ETPU particles and 15 parts of microcapsules; the microcapsule comprises the following substances in parts by mass: 20 parts of chitosan aqueous solution, 100 parts of Arabic gum solution, 2.5 parts of antibacterial agent, 2 parts of sodium hydroxide solution, 2.5 parts of cross-linking agent and 120 parts of distilled water.

The mass fraction of the chitosan aqueous solution is 2 percent; the mass fraction of the Arabic gum solution is 10 percent; the antibacterial agent is terbinafine hydrochloride ointment; the volume concentration of the sodium hydroxide solution is 0.1 mol/L; the cross-linking agent is glutaraldehyde.

The preparation method of the environment-friendly ultralight antibacterial shoe material comprises the following steps:

(1) preparing microcapsules: mixing the gum arabic solution with negative charges and an antibacterial agent in a reaction container, carrying out water bath at 40 ℃, and stirring for 5 min; dripping positively charged chitosan water solution, bathing at 40 deg.C, and stirring for 15 min; adding equal volume of isothermal distilled water for dilution, and stirring uniformly; adjusting the pH value of the stirred solution to 7 by using a sodium hydroxide solution, and continuously stirring to perform complex coacervation reaction; taking the beaker out of the water bath, putting the beaker into an ice-water mixture, and cooling to 10 ℃; dripping a cross-linking agent for cross-linking and curing, and stirring to obtain a curing liquid for reacting for 30 min; after the reaction is finished, carrying out suction filtration, washing and freeze drying on the product to obtain a microcapsule;

(2) preparing a wear-resistant layer: adding 300 parts of ETPU particles into a mold of a sole forming machine, introducing steam at 70 ℃ into the mold to melt the ETPU particles, and performing compression forming to obtain a wear-resistant layer of the shoe material;

(3) preparing an antibacterial layer: uniformly mixing 15 parts of microcapsules and 250 parts of ETPU particles, adding the mixture into a mold of a sole forming machine, introducing 70 ℃ steam into the mold for melting, and then performing compression forming to obtain an antibacterial layer of a shoe material;

(4) roughening the top surface of the wear-resistant layer and the bottom surface of the antibacterial layer of the shoe material at 25 ℃, coating JL-6280 glue, airing for 5min, aligning and combining the glue-coated surfaces of the wear-resistant layer and the antibacterial layer, and compacting for 2 h.

Example two

An environment-friendly ultralight antibacterial shoe material comprises a wear-resistant layer and an antibacterial layer, wherein the antibacterial layer comprises 250 parts of ETPU particles and 15 parts of microcapsules; the microcapsule comprises the following substances in parts by mass: 20 parts of chitosan aqueous solution, 100 parts of Arabic gum solution, 2.5 parts of antibacterial agent, 2 parts of sodium hydroxide solution, 2.5 parts of cross-linking agent and 120 parts of distilled water.

The mass fraction of the chitosan aqueous solution is 4 percent; the mass fraction of the Arabic gum solution is 10 percent; the antibacterial agent is terbinafine hydrochloride ointment; the volume concentration of the sodium hydroxide solution is 0.1 mol/L; the cross-linking agent is glutaraldehyde.

The preparation method of the environment-friendly ultralight antibacterial shoe material comprises the following steps:

(1) preparing microcapsules: mixing the gum arabic solution with negative charges and an antibacterial agent in a reaction container, carrying out water bath at 40 ℃, and stirring for 5 min; dripping positively charged chitosan water solution, bathing at 40 deg.C, and stirring for 15 min; adding equal volume of isothermal distilled water for dilution, and stirring uniformly; adjusting the pH value of the stirred solution to 7 by using a sodium hydroxide solution, and continuously stirring to perform complex coacervation reaction; taking the beaker out of the water bath, putting the beaker into an ice-water mixture, and cooling to 10 ℃; dripping a cross-linking agent for cross-linking and curing, and stirring to obtain a curing liquid for reacting for 30 min; after the reaction is finished, carrying out suction filtration, washing and freeze drying on the product to obtain a microcapsule;

(2) preparing a wear-resistant layer: adding 300 parts of ETPU particles into a mold of a sole forming machine, introducing steam at 70 ℃ into the mold to melt the ETPU particles, and performing compression forming to obtain a wear-resistant layer of the shoe material;

(3) preparing an antibacterial layer: uniformly mixing 15 parts of microcapsules and 250 parts of ETPU particles, adding the mixture into a mold of a sole forming machine, introducing 70 ℃ steam into the mold for melting, and then performing compression forming to obtain an antibacterial layer of a shoe material;

(4) roughening the top surface of the wear-resistant layer and the bottom surface of the antibacterial layer of the shoe material at 25 ℃, coating JL-6280 glue, airing for 5min, aligning and combining the glue-coated surfaces of the wear-resistant layer and the antibacterial layer, and compacting for 2 h.

EXAMPLE III

An environment-friendly ultralight antibacterial shoe material comprises a wear-resistant layer and an antibacterial layer, wherein the antibacterial layer comprises 250 parts of ETPU particles and 15 parts of microcapsules; the microcapsule comprises the following substances in parts by mass: 20 parts of chitosan aqueous solution, 100 parts of Arabic gum solution, 2.5 parts of antibacterial agent, 2 parts of sodium hydroxide solution, 2.5 parts of cross-linking agent and 120 parts of distilled water.

The mass fraction of the chitosan aqueous solution is 6 percent; the mass fraction of the Arabic gum solution is 10 percent; the antibacterial agent is terbinafine hydrochloride ointment; the volume concentration of the sodium hydroxide solution is 0.1 mol/L; the cross-linking agent is glutaraldehyde.

The preparation method of the environment-friendly ultralight antibacterial shoe material comprises the following steps:

(1) preparing microcapsules: mixing the gum arabic solution with negative charges and an antibacterial agent in a reaction container, carrying out water bath at 40 ℃, and stirring for 5 min; dripping positively charged chitosan water solution, bathing at 40 deg.C, and stirring for 15 min; adding equal volume of isothermal distilled water for dilution, and stirring uniformly; adjusting the pH value of the stirred solution to 7 by using a sodium hydroxide solution, and continuously stirring to perform complex coacervation reaction; taking the beaker out of the water bath, putting the beaker into an ice-water mixture, and cooling to 10 ℃; dripping a cross-linking agent for cross-linking and curing, and stirring to obtain a curing liquid for reacting for 30 min; after the reaction is finished, carrying out suction filtration, washing and freeze drying on the product to obtain a microcapsule;

(2) preparing a wear-resistant layer: adding 300 parts of ETPU particles into a mold of a sole forming machine, introducing steam at 70 ℃ into the mold to melt the ETPU particles, and performing compression forming to obtain a wear-resistant layer of the shoe material;

(3) preparing an antibacterial layer: uniformly mixing 15 parts of microcapsules and 250 parts of ETPU particles, adding the mixture into a mold of a sole forming machine, introducing 70 ℃ steam into the mold for melting, and then performing compression forming to obtain an antibacterial layer of a shoe material;

(4) roughening the top surface of the wear-resistant layer and the bottom surface of the antibacterial layer of the shoe material at 25 ℃, coating JL-6280 glue, airing for 5min, aligning and combining the glue-coated surfaces of the wear-resistant layer and the antibacterial layer, and compacting for 2 h.

Example four

An environment-friendly ultralight antibacterial shoe material comprises a wear-resistant layer and an antibacterial layer, wherein the antibacterial layer comprises 250 parts of ETPU particles and 15 parts of microcapsules; the microcapsule comprises the following substances in parts by mass: 30 parts of chitosan aqueous solution, 100 parts of Arabic gum solution, 2.5 parts of antibacterial agent, 2 parts of sodium hydroxide solution, 2.5 parts of cross-linking agent and 130 parts of distilled water.

The mass fraction of the chitosan aqueous solution is 6 percent; the mass fraction of the Arabic gum solution is 10 percent; the antibacterial agent is terbinafine hydrochloride ointment; the volume concentration of the sodium hydroxide solution is 0.1 mol/L; the cross-linking agent is glutaraldehyde.

The preparation method of the environment-friendly ultralight antibacterial shoe material comprises the following steps:

(1) preparing microcapsules: mixing the gum arabic solution with negative charges and an antibacterial agent in a reaction container, carrying out water bath at 40 ℃, and stirring for 5 min; dripping positively charged chitosan water solution, bathing at 40 deg.C, and stirring for 15 min; adding equal volume of isothermal distilled water for dilution, and stirring uniformly; adjusting the pH value of the stirred solution to 7 by using a sodium hydroxide solution, and continuously stirring to perform complex coacervation reaction; taking the beaker out of the water bath, putting the beaker into an ice-water mixture, and cooling to 10 ℃; dripping a cross-linking agent for cross-linking and curing, and stirring to obtain a curing liquid for reacting for 30 min; after the reaction is finished, carrying out suction filtration, washing and freeze drying on the product to obtain a microcapsule;

(2) preparing a wear-resistant layer: adding 300 parts of ETPU particles into a mold of a sole forming machine, introducing steam at 70 ℃ into the mold to melt the ETPU particles, and performing compression forming to obtain a wear-resistant layer of the shoe material;

(3) preparing an antibacterial layer: uniformly mixing 15 parts of microcapsules and 250 parts of ETPU particles, adding the mixture into a mold of a sole forming machine, introducing 70 ℃ steam into the mold for melting, and then performing compression forming to obtain an antibacterial layer of a shoe material;

(4) roughening the top surface of the wear-resistant layer and the bottom surface of the antibacterial layer of the shoe material at 25 ℃, coating JL-6280 glue, airing for 5min, aligning and combining the glue-coated surfaces of the wear-resistant layer and the antibacterial layer, and compacting for 2 h.

EXAMPLE five

An environment-friendly ultralight antibacterial shoe material comprises a wear-resistant layer and an antibacterial layer, wherein the antibacterial layer comprises 250 parts of ETPU particles and 15 parts of microcapsules; the microcapsule comprises the following substances in parts by mass: 30 parts of chitosan aqueous solution, 100 parts of Arabic gum solution, 2.5 parts of antibacterial agent, 2 parts of sodium hydroxide solution, 2.5 parts of cross-linking agent and 130 parts of distilled water.

The mass fraction of the chitosan aqueous solution is 6 percent; the mass fraction of the Arabic gum solution is 10 percent; the antibacterial agent is terbinafine hydrochloride ointment; the volume concentration of the sodium hydroxide solution is 0.1 mol/L; the cross-linking agent is glutaraldehyde.

The preparation method of the environment-friendly ultralight antibacterial shoe material comprises the following steps:

(1) preparing microcapsules: mixing the gum arabic solution with negative charges and an antibacterial agent in a reaction container, carrying out water bath at 40 ℃, and stirring for 5 min; dripping positively charged chitosan water solution, bathing at 40 deg.C, and stirring for 15 min; adding equal volume of isothermal distilled water for dilution, and stirring uniformly; adjusting the pH value of the stirred solution to 7 by using a sodium hydroxide solution, and continuously stirring to perform complex coacervation reaction; taking the beaker out of the water bath, putting the beaker into an ice-water mixture, and cooling to 10 ℃; dripping a cross-linking agent for cross-linking and curing, and stirring to obtain a curing liquid for reacting for 30 min; after the reaction is finished, carrying out suction filtration, washing and freeze drying on the product to obtain a microcapsule;

(2) preparing a wear-resistant layer: adding 300 parts of ETPU particles into a mold of a sole forming machine, introducing 65 ℃ steam into the mold to melt the ETPU particles, and performing compression forming to obtain a wear-resistant layer of the shoe material;

(3) preparing an antibacterial layer: uniformly mixing 15 parts of microcapsules and 250 parts of ETPU particles, adding the mixture into a mold of a sole forming machine, introducing 65 ℃ steam into the mold for melting, and then performing compression forming to obtain an antibacterial layer of a shoe material;

(4) roughening the top surface of the wear-resistant layer and the bottom surface of the antibacterial layer of the shoe material at 25 ℃, coating JL-6280 glue, airing for 5min, aligning and combining the glue-coated surfaces of the wear-resistant layer and the antibacterial layer, and compacting for 2 h.

EXAMPLE six

An environment-friendly ultralight antibacterial shoe material comprises a wear-resistant layer and an antibacterial layer, wherein the antibacterial layer comprises 250 parts of ETPU particles and 15 parts of microcapsules; the microcapsule comprises the following substances in parts by mass: 30 parts of chitosan aqueous solution, 100 parts of Arabic gum solution, 2.5 parts of antibacterial agent, 2.5 parts of sodium hydroxide solution, 3 parts of cross-linking agent and 130 parts of distilled water.

The mass fraction of the chitosan aqueous solution is 6 percent; the mass fraction of the Arabic gum solution is 10 percent; the antibacterial agent is terbinafine hydrochloride ointment; the volume concentration of the sodium hydroxide solution is 0.1 mol/L; the cross-linking agent is glutaraldehyde.

The preparation method of the environment-friendly ultralight antibacterial shoe material comprises the following steps:

(1) preparing microcapsules: mixing the gum arabic solution with negative charges and an antibacterial agent in a reaction container, carrying out water bath at 40 ℃, and stirring for 5 min; dripping positively charged chitosan water solution, bathing at 40 deg.C, and stirring for 15 min; adding equal volume of isothermal distilled water for dilution, and stirring uniformly; adjusting the pH value of the stirred solution to 7 by using a sodium hydroxide solution, and continuously stirring to perform complex coacervation reaction; taking the beaker out of the water bath, putting the beaker into an ice-water mixture, and cooling to 10 ℃; dripping a cross-linking agent for cross-linking and curing, and stirring to obtain a curing liquid for reacting for 30 min; after the reaction is finished, carrying out suction filtration, washing and freeze drying on the product to obtain a microcapsule;

(2) preparing a wear-resistant layer: adding 300 parts of ETPU particles into a mold of a sole forming machine, introducing steam at 70 ℃ into the mold to melt the ETPU particles, and performing compression forming to obtain a wear-resistant layer of the shoe material;

(3) preparing an antibacterial layer: uniformly mixing 15 parts of microcapsules and 250 parts of ETPU particles, adding the mixture into a mold of a sole forming machine, introducing 70 ℃ steam into the mold for melting, and then performing compression forming to obtain an antibacterial layer of a shoe material;

(4) roughening the top surface of the wear-resistant layer and the bottom surface of the antibacterial layer of the shoe material at 25 ℃, coating JL-6280 glue, airing for 5min, aligning and combining the glue-coated surfaces of the wear-resistant layer and the antibacterial layer, and compacting for 2 h.

Comparative example 1

An environment-friendly ultralight antibacterial shoe material comprises a wear-resistant layer and an antibacterial layer, the raw material is ETPU particles, and the preparation method of the shoe material comprises the following steps:

(1) preparing a wear-resistant layer: adding 300 parts of ETPU particles into a mold of a sole forming machine, introducing steam at 70 ℃ into the mold to melt the ETPU particles, and performing compression forming to obtain a wear-resistant layer of the shoe material;

(2) preparing an antibacterial layer: adding 250 parts of ETPU particles into a mold of a sole forming machine, introducing steam at 70 ℃ into the mold for melting, and then pressing and forming to obtain an antibacterial layer of the shoe material;

(3) roughening the top surface of the wear-resistant layer and the bottom surface of the antibacterial layer of the shoe material at 25 ℃, coating JL-6280 glue, airing for 5min, aligning and combining the glue-coated surfaces of the wear-resistant layer and the antibacterial layer, and compacting for 2 h.

According to the evaluation test method of the antibacterial performance of national footwear and footwear components (ISO 16187-:

TABLE 1 antimicrobial ratio before and after washing of shoe materials

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Rather, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.