阅读说明：本技术 一种抑菌防螨海绵及其制备方法 (Antibacterial anti-mite sponge and preparation method thereof ) 是由 丁向前 于 2020-06-10 设计创作，主要内容包括：本发明公开了一种抑菌防螨海绵,所述抑菌防螨海绵由包括以下物料的混合物发泡生成：多元醇,包括聚醚多元醇及聚合物多元醇、聚酯多元醇；纳米氧化锌,其粒径介于1至100纳米之间,每100质量份数的所述多元醇对应所述纳米氧化银的添加量介于0.1至10份之间。本发明通过在生产海绵的乳化液中添加抗菌抑菌的氧化锌,能抑制霉菌等细菌滋生,达到阻断螨虫食物链的目的,实现海绵产品从根本上防螨抑菌；通过各种多元醇、催化剂、改性剂和纳米氧化锌的组合反应,使海绵具有优良的绝缘、防静电、防尘的特点,并具有柔软的手感。(The invention discloses a bacteriostatic mite-proof sponge which is generated by foaming a mixture of the following materials: polyols including polyether polyols, polymer polyols, polyester polyols; the grain diameter of the nano zinc oxide is between 1 and 100 nanometers, and the addition amount of the polyol corresponding to the nano silver oxide in every 100 mass parts is between 0.1 and 10 parts. According to the invention, the antibacterial and bacteriostatic zinc oxide is added into the emulsion for producing the sponge, so that the breeding of bacteria such as mold and the like can be inhibited, the purpose of blocking the food chain of mites is achieved, and the sponge product is fundamentally anti-mite and bacteriostatic; through the combined reaction of various polyols, catalysts, modifiers and nano zinc oxide, the sponge has the characteristics of excellent insulation, static electricity prevention and dust prevention, and has soft hand feeling.)

1. The bacteriostatic mite-proof sponge is characterized by being generated by foaming a mixture comprising the following materials:

polyols, including one or more of polyether polyols and polymer polyols/polyester polyols;

the grain diameter of the nano zinc oxide is between 1 and 100 nanometers, and the addition amount of the polyol corresponding to the nano silver oxide in every 100 mass parts is between 0.1 and 10 parts.

2. The bacteriostatic mite-proof sponge according to claim 1, wherein the mixture further comprises silicone oil, a catalyst, a foaming agent and a modifier; the silicone oil is synthetic silicone oil, the catalyst comprises one or two of polyurethane gel catalyst and polyurethane organic tin catalyst, the foaming agent is water or liquid carbon dioxide, and the modifier is polyisocyanate.

3. The bacteriostatic mite-proof sponge according to claim 2, wherein the hydroxyl value of the polyalcohol is in the range of 50 to 63 mgKOH/g.

4. The bacteriostatic acaricidal sponge according to claim 2, wherein the silicone oil is prepared by mixing epoxy modified silicone oil and amino silicone oil, and the addition amount of the polyol in each 100 parts by mass to the silicone oil is between 0.55 and 0.9 part.

5. The bacteriostatic acarid-proof sponge according to claim 2, wherein the addition amount of the catalyst is between 0.2 and 0.4 part per 100 parts by mass of the polyol; the polyurethane organotin catalyst is T-9 organotin catalyst.

6. The bacteriostatic acarid-proof sponge according to claim 2, wherein the modifier is TDI or modified MDI, the addition amount of the modifier is 30-50 parts per 100 parts by mass of the polyol, and the isocyanate equivalent weight of the modifier is more than 3000.

7. The bacteriostatic mite-proof sponge according to claim 2, wherein the addition amount of the foaming agent is between 2 and 3.5 parts per 100 parts by mass of the polyol.

8. The bacteriostatic acaricidal sponge according to claim 2, wherein the mixture further comprises a surfactant, and the addition amount of the surfactant is less than 0.1 part per 100 parts by mass of the polyol.

9. A preparation method for preparing any one of the bacteriostatic acarid-preventing sponges as claimed in claims 1 to 8, which is characterized by comprising the following steps:

weighing 100 parts of polyol, 0.1-10 parts of nano zinc oxide, 2-3.5 parts of foaming agent, 0.5-0.9 part of silicone oil, 0.2-0.4 part of catalyst, 30-50 parts of modifier and other additives, pumping all raw materials into a stirring cavity of a stirrer through a feeding pipeline, and stirring at a high speed to form emulsion;

and step two, conveying the emulsion obtained in the step one to a forming line body for foaming and forming.

10. The preparation method of the bacteriostatic and anti-mite sponge as claimed in claim 9, wherein in the first step, the rotation speed of the stirrer is 6000 to 6500r/min, the stirring temperature is 15 to 20 ℃, and the stirring time is 90 to 110 seconds.

Technical Field

The invention relates to the technical field of sponges, and particularly relates to a bacteriostatic and anti-mite sponge and a preparation method thereof.

Background

The sponge is a porous material, is mostly made of wood cellulose fiber or foamed plastic polymer, has the characteristics of good air permeability, heat preservation and insulation, sound absorption and shock absorption, flame retardance, static resistance and the like, and is widely applied to the production and manufacture of products in various fields such as automobiles, furniture, daily necessities, underwear and the like.

The sponge material brings convenience to daily production and life of people, and the porous property of the sponge material also determines that various dust and foreign matters are easy to gather, and in a warm and humid environment, the dust and the foreign matters are easy to breed bacteria or mites to cause damage to human health. When people use the sponge products, most of the sponge products can only reduce bacteria or mites in the sponge products through frequent cleaning or exposure to the sun, the operation is troublesome, and the problem of breeding of the bacteria and the mites is fundamentally solved.

Therefore, improvements in bacteriostatic properties of sponges are needed.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the antibacterial and anti-mite sponge and the preparation method thereof, and the antibacterial and antibacterial zinc oxide is added into the emulsion for producing the sponge, so that the aims of blocking the breeding of bacteria and blocking the food chain of mites are achieved, and the problem that the bacteria and the mites are easy to breed on sponge products is fundamentally solved.

In order to solve the technical problems, the invention adopts a technical scheme as follows:

the bacteriostatic mite-proof sponge is generated by foaming a mixture comprising the following materials:

polyols, including one or more of polyether polyols and polymer polyols/polyester polyols;

the grain diameter of the nano zinc oxide is between 1 and 100 nanometers, and the addition amount of the polyol corresponding to the nano silver oxide in every 100 mass parts is between 0.1 and 10 parts.

As a further elaboration of the above technical solution:

in the technical scheme, the mixture also comprises silicone oil, a catalyst, a foaming agent and a modifier; the silicone oil is synthetic silicone oil, the catalyst comprises one or two of polyurethane gel catalyst and polyurethane organic tin catalyst, the foaming agent is water or liquid carbon dioxide, and the modifier is polyisocyanate.

In the above technical scheme, the hydroxyl value of the polyol is in the range of 50 to 63 mgKOH/g.

In the technical scheme, the silicone oil is formed by mixing epoxy modified silicone oil and amino silicone oil, and the addition amount of the polyol corresponding to the silicone oil is 0.55-0.9 part per 100 parts by mass.

In the technical scheme, the addition amount of the catalyst is between 0.2 and 0.4 part per 100 parts by mass of the polyol; the polyurethane organotin catalyst is T-9 organotin catalyst.

In the technical scheme, the modifier is TDI or modified MDI, the addition amount of the modifier is between 30 and 50 parts per 100 parts by mass of the polyol, and the isocyanate equivalent weight of the modifier is more than 3000.

In the above technical scheme, the addition amount of the foaming agent is between 2 and 3.5 parts per 100 parts by mass of the polyol.

In the above technical scheme, the mixture further comprises a surfactant, and the addition amount of the surfactant is less than 0.1 part per 100 parts by mass of the polyol.

In order to realize the technical scheme, the invention adopts another technical scheme as follows:

a preparation method for preparing any one of the bacteriostatic and anti-mite sponges comprises the following steps:

weighing 100 parts of polyol, 0.1-10 parts of nano zinc oxide, 2-3.5 parts of foaming agent, 0.5-0.9 part of silicone oil, 0.2-0.4 part of catalyst, 30-50 parts of modifier and other additives, pumping all raw materials into a stirring cavity of a stirrer through a feeding pipeline, and stirring at a high speed to form emulsion;

and step two, conveying the emulsion obtained in the step one to a forming line body for foaming and forming.

In the technical scheme, in the first step, the rotating speed of the stirrer is 6000-6500 r/min, the stirring temperature is 15-20 ℃, and the stirring time is 90-110 seconds.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the antibacterial and bacteriostatic zinc oxide is added into the emulsion for producing the sponge, so that the breeding of bacteria such as mold and the like can be inhibited, the purpose of blocking the food chain of mites is achieved, and the sponge product is fundamentally anti-mite and bacteriostatic; through the combined reaction of various polyols, catalysts, modifiers and nano zinc oxide, the sponge has the characteristics of excellent insulation, static electricity prevention and dust prevention, and has soft hand feeling.

Drawings

FIG. 1 is a composition diagram of a mixture according to the present invention;

FIG. 2 is a flow chart of the preparation method of the present invention.

Detailed Description

The present invention will be described in further detail with reference to examples.

The high-performance inorganic nano zinc oxide has the advantages of small particles, large specific surface area, good dispersibility, looseness, porosity, good fluidity and other excellent physical and chemical properties, has the double characteristics of nano materials and traditional zinc oxide, has the unique properties of antibiosis, bacteriostasis, odor removal, mildew prevention and the like, can obviously play the roles of antibiosis and bacteriostasis when being applied to sponge, achieves the purposes of inhibiting mites and protecting human health, and is beneficial to preventing the sponge from aging, prolonging the service life and the like; the silicone oil has better heat insulation, electrical insulation and compression resistance, and the elasticity and softness of the sponge product can be enhanced and the hand feeling comfort level of the product can be improved by the modified silicone oil synthesized by epoxy modification and amino modification; the polyurethane organotin catalyst T-9 has higher catalytic activity, can promote the gel reaction in the later period and promote the mixture to foam quickly; a1 is used as cationic surfactant to increase the water solubility of raw materials, reduce the surface tension of emulsion, change the wettability of sponge surface, accelerate the foaming and opening speed of sponge, and increase the production efficiency of sponge. Meanwhile, water is used as a foaming agent, so that the purposes of economy, energy conservation and environmental protection can be achieved.