阅读说明：本技术 一种抗菌eva材料及其制备方法 (Antibacterial EVA material and preparation method thereof ) 是由 林秀旋 于 2021-07-29 设计创作，主要内容包括：本发明涉及抗菌EVA材料技术领域,具体为一种抗菌EVA材料及其制备方法,包括一种抗菌EVA材料以及抗菌EVA材料其制备方法,所述抗菌EVA材料包括聚乙烯、硬酸酯、抗菌剂、原料、助料剂、木质素、增塑剂和发泡剂AC,通过抗菌剂使EVA材料具有较强的抗菌性能,所述抗菌剂为天然抗菌剂,且抗菌剂不易溶出,不会对环境和人体造成伤害,具有良好的防臭、防霉、防潮的效果,并且助料剂中的抗氧化剂和耐磨剂,使EVA材料具有强力的耐磨效果和耐用性能,解决EVA材料开裂、变形等问题,提高使用寿命,且在制作过程中添加的发泡剂AC,使EVA材料更加细腻均匀、表面更加光滑。(The invention relates to the technical field of antibacterial EVA materials, in particular to an antibacterial EVA material and a preparation method thereof, and the antibacterial EVA material comprises polyethylene, stearate, an antibacterial agent, a raw material, an auxiliary agent, lignin, a plasticizer and a foaming agent AC, and has stronger antibacterial performance through the antibacterial agent, the antibacterial agent is a natural antibacterial agent, the antibacterial agent is not easy to dissolve out and can not cause damage to the environment and human bodies, and has good effects of deodorization, mildew prevention and moisture prevention, and an antioxidant and an anti-wear agent in the auxiliary agent enable the EVA material to have strong wear-resisting effect and durability, so that the problems of cracking, deformation and the like of the EVA material are solved, the service life is prolonged, and the foaming agent AC added in the manufacturing process enables the EVA material to be more exquisite and uniform and the surface to be smoother.)

1. An antibacterial EVA material is characterized in that: the antibacterial EVA material comprises polyethylene, stearate, an antibacterial agent, a raw material, an auxiliary material agent, lignin, a plasticizer and a foaming agent AC.

2. The antibacterial EVA material of claim 1, wherein: 30-40 parts of polyethylene, 15-30 parts of stearic acid, 10-20 parts of an antibacterial agent, 35-45 parts of raw materials, 20-35 parts of an auxiliary agent, 5-10 parts of lignin, 15-25 parts of a plasticizer and 12-16 parts of a foaming agent.

3. The antibacterial EVA material of claim 2, wherein: the environment-friendly foaming agent is prepared from 35 parts of polyethylene, 22 parts of stearic acid, 15 parts of an antibacterial agent, 42 parts of a raw material, 28 parts of an auxiliary agent, 7 parts of lignin, 20 parts of a plasticizer and 14 parts of a foaming agent.

4. The antibacterial EVA material of claim 1, wherein: the antibacterial agent is a natural antibacterial agent, the raw material is natural rubber, the auxiliary agent is an antioxidant and an anti-wear agent, the antioxidant is 18 parts, the anti-wear agent is 10 parts, and the plasticizer is a phthalate.

5. The antibacterial EVA material of claim 4, wherein: the antioxidant is one of phenylenediamine antioxidants and diphenylamine antioxidants.

6. The preparation method of the antibacterial EVA material according to claim 1, wherein the preparation method comprises the following steps: the method comprises the following steps:

step 1: pouring 35 parts of polyethylene, 22 parts of stearic acid, 42 parts of raw materials, 28 parts of auxiliary materials, 7 parts of lignin and 14 parts of foaming agents into a mixing and stirring device in sequence according to a proportion, and stirring uniformly for 15-20 min.

Step 2: and (3) after the stirring time in the step (1) is up, pouring 15 parts of antibacterial agent and 20 parts of plasticizer into the stirring device again for stirring, wherein the stirring time is 40-50 min.

And step 3: and (3) after the step 2 is finished, standing the mixture in a stirring device for 10-15 min.

And 4, step 4: and 3, after standing, pouring the mixture after standing into a cooling device for cooling and forming to prepare a semi-finished product, and processing the semi-finished product by a mold to obtain the antibacterial EVA material.

7. The preparation method of the antibacterial EVA material according to claim 6, wherein the preparation method comprises the following steps: the stirring device is a high-temperature heating spiral stirrer.

8. The preparation method of the antibacterial EVA material according to claim 6, wherein the preparation method comprises the following steps: the stirring temperature of the step 1 is 115-125 ℃, and the stirring temperature of the step 2 is kept at 115 ℃.

Technical Field

The invention relates to the technical field of antibacterial EVA materials, in particular to an antibacterial EVA material and a preparation method thereof.

Background

EVA is ethylene-vinyl acetate (vinyl acetate) copolymer, it is made by ethylene and vinyl acetate copolymerization, EVA because introduce vinyl acetate monomer in the molecular chain, so EVA has very big improvement in performance compared with PE, for example EVA has better flexibility, impact resistance, filler compatibility and heat sealing performance, because EVA has these good properties, so it is applied to fields such as foamed shoe material, functional shed membrane, packaging film, hot melt adhesive, wire and cable and toy extensively, wherein foamed shoe material is the most important application field of EVA resin in our country.

However, inorganic silver-based antibacterial agents are often added into the antibacterial EVA materials at present, and have the defects of slow antibacterial effect, easy dissolution and the like, and EVA products are mostly difficult to degrade materials, so that the materials are easy to accumulate and the environment is polluted after being discarded.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an antibacterial EVA material which is simple to prepare and a preparation method thereof.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the antibacterial EVA material comprises polyethylene, stearate, an antibacterial agent, a raw material, an auxiliary material agent, lignin, a plasticizer and a foaming agent AC.

Further, in the invention, the polyethylene is 30-40 parts, the stearic acid is 15-30 parts, the antibacterial agent is 10-20 parts, the raw material is 35-45 parts, the auxiliary material is 20-35 parts, the lignin is 5-10 parts, the plasticizer is 15-25 parts, and the foaming agent is 12-16 parts.

Further, in the invention, the polyethylene is 35 parts, the stearic acid is 22 parts, the antibacterial agent is 15 parts, the raw material is 42 parts, the auxiliary agent is 28 parts, the lignin is 7 parts, the plasticizer is 20 parts, and the foaming agent is 14 parts.

Further, in the invention, the antibacterial agent is a natural antibacterial agent, the raw material is natural rubber, the auxiliary agent is an antioxidant and an anti-wear agent, the antioxidant is 18 parts, the anti-wear agent is 10 parts, and the plasticizer is a phthalate.

Further, in the present invention, the antioxidant is one of phenylenediamine antioxidants and diphenylamine antioxidants.

Further, the invention provides an antibacterial EVA material and a preparation method thereof, which comprises the following steps,

step 1: pouring 35 parts of polyethylene, 22 parts of stearic acid, 42 parts of raw materials, 28 parts of auxiliary materials, 7 parts of lignin and 14 parts of foaming agents into a mixing and stirring device in sequence according to a proportion, and stirring uniformly for 15-20 min.

Step 2: and (3) after the stirring time in the step (1) is up, pouring 15 parts of antibacterial agent and 20 parts of plasticizer into the stirring device again for stirring, wherein the stirring time is 40-50 min.

And step 3: and (3) after the step 2 is finished, standing the mixture in a stirring device for 10-15 min.

And 4, step 4: and 3, after standing, pouring the mixture after standing into a cooling device for cooling and forming to prepare a semi-finished product, and processing the semi-finished product by a mold to obtain the antibacterial EVA material.

Further, in the invention, the stirring device is a high-temperature heating spiral stirrer.

Further, in the invention, the stirring temperature in the step 1 is 115-125 ℃, and the stirring temperature in the step 2 is kept at 115 ℃.

(III) advantageous effects

Compared with the prior art, the invention provides an antibacterial EVA material and a preparation method thereof, and the antibacterial EVA material has the following beneficial effects:

according to the antibacterial EVA material and the preparation method thereof, the EVA material has stronger antibacterial performance through the antibacterial agent, the antibacterial agent is a natural antibacterial agent, the antibacterial agent is not easy to dissolve out, does not cause damage to the environment and a human body, and has good deodorization, mildew-proof and moisture-proof effects, and the antioxidant and the wear-resistant agent in the auxiliary agent enable the EVA material to have strong wear-resistant effect and durability, so that the problems of cracking, deformation and the like of the EVA material are solved, the service life is prolonged, and the foaming agent AC added in the manufacturing process enables the EVA material to be finer and more uniform and the surface to be smoother.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

The antibacterial EVA material comprises polyethylene, stearate, an antibacterial agent, a raw material, an auxiliary material agent, lignin, a plasticizer and a foaming agent AC.

Further, in the invention, the polyethylene is 30-40 parts, the stearic acid is 15-30 parts, the antibacterial agent is 10-20 parts, the raw material is 35-45 parts, the auxiliary material is 20-35 parts, the lignin is 5-10 parts, the plasticizer is 15-25 parts, and the foaming agent is 12-16 parts.

Further, in the invention, the polyethylene is 35 parts, the stearic acid is 22 parts, the antibacterial agent is 15 parts, the raw material is 42 parts, the auxiliary agent is 28 parts, the lignin is 7 parts, the plasticizer is 20 parts, and the foaming agent is 14 parts.

Further, in the invention, the antibacterial agent is a natural antibacterial agent, the raw material is natural rubber, the auxiliary agent is an antioxidant and an anti-wear agent, the antioxidant is 18 parts, the anti-wear agent is 10 parts, and the plasticizer is a phthalate.

Further, in the present invention, the antioxidant is one of phenylenediamine antioxidants and diphenylamine antioxidants.

Further, the invention provides an antibacterial EVA material and a preparation method thereof, which comprises the following steps,

step 1: pouring 35 parts of polyethylene, 22 parts of stearic acid, 42 parts of raw materials, 28 parts of auxiliary materials, 7 parts of lignin and 14 parts of foaming agents into a mixing and stirring device in sequence according to a proportion, and stirring uniformly for 15-20 min.

Step 2: and (3) after the stirring time in the step (1) is up, pouring 15 parts of antibacterial agent and 20 parts of plasticizer into the stirring device again for stirring, wherein the stirring time is 40-50 min.

And step 3: and (3) after the step 2 is finished, standing the mixture in a stirring device for 10-15 min.

And 4, step 4: and 3, after standing, pouring the mixture after standing into a cooling device for cooling and forming to prepare a semi-finished product, and processing the semi-finished product by a mold to obtain the antibacterial EVA material.

Further, in the invention, the stirring device is a high-temperature heating spiral stirrer.

Further, in the invention, the stirring temperature in the step 1 is 115-125 ℃, and the stirring temperature in the step 2 is kept at 115 DEG C

In summary, the working principle and working process of the antibacterial EVA material and the preparation method thereof are that when in use, firstly, the preparation method of the antibacterial EVA material obtains the finished antibacterial EVA material through the following steps;

step 1: pouring 35 parts of polyethylene, 22 parts of stearic acid, 42 parts of raw materials, 28 parts of auxiliary materials, 7 parts of lignin and 14 parts of foaming agents into a high-temperature heating spiral stirrer in sequence according to a proportion, and uniformly stirring, wherein the stirring time is set to be 15-20min, and the temperature is set to be 115-125 ℃;

step 2: step 1, after stirring and mixing time is up, pouring 15 parts of antibacterial agent and 20 parts of plasticizer into a high-temperature heated spiral stirrer again for stirring again, wherein the stirring time is set to be 40-50min, and the temperature is set to be 115 ℃;

and step 3: after the mixing and stirring in the step 2 are finished, standing the obtained mixture in a spiral stirrer for 10-15 min;

and 4, step 4: after the standing in the step 3 is finished, pouring the mixture after standing into a cooling device for cooling and forming to prepare a semi-finished product, and obtaining the antibacterial EVA material through a processing die;

the antibacterial agent enables the EVA material to have strong antibacterial performance, the antibacterial agent is a natural antibacterial agent, the antibacterial agent is not easy to dissolve out, the environment and a human body are not damaged, the deodorant, mildew-proof and damp-proof effects are good, the antioxidant and the wear-resisting agent in the auxiliary agent enable the EVA material to have strong wear-resisting effect and durability, the problems of cracking, deformation and the like of the EVA material are solved, the service life is prolonged, the foaming agent AC added in the manufacturing process enables the EVA material to be more fine and uniform and the surface to be smoother, and the lignin is a biodegradable material, so that the degradation rate of the antibacterial EVA material is effectively improved, and the environmental pollution is effectively avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.