阅读说明：本技术 一种缓释二氧化氯空气净化凝胶及其制备方法 (Slow-release chlorine dioxide air purification gel and preparation method thereof ) 是由 郑晨阳 姚春鹏 孙宝举 蔡爽 王万喜 王志强 崔志国 王兵凯 于 2020-05-22 设计创作，主要内容包括：本发明公开了一种缓释二氧化氯空气净化凝胶及其制备方法,属于空气消毒技术领域。一种缓释二氧化氯空气净化凝胶,由如下重量百分比的组分组成：二氧化氯消毒剂1.8～3％,缓释剂10.3～14.7％,凝胶剂6.4～9.6％,去离子水72.7～81.5％；其中二氧化氯消毒剂由如下重量配比的组分组成：亚氯酸钠,柠檬酸,氯化钠,碳酸氢钠,硫酸镁比例为4～6：8～10：1～3：0.5～2：2～4；缓释剂由如下重量配比的组分组成：磷酸二氢钠、聚乙二醇和柠檬酸比例为0.5～1.5:0.5～1.5:0.5～1.5；所述凝胶剂为羧甲基纤维素钠。制备方法包括：粉末混合、制备半成品、转移至PE瓶、粘贴标识、打码、热塑封。(The invention discloses a slow-release chlorine dioxide air purification gel and a preparation method thereof, belonging to the technical field of air disinfection. The slow-release chlorine dioxide air purification gel comprises the following components in percentage by weight: 1.8-3% of chlorine dioxide disinfectant, 10.3-14.7% of slow release agent, 6.4-9.6% of gel and 72.7-81.5% of deionized water; wherein the chlorine dioxide disinfectant comprises the following components in parts by weight: the ratio of sodium chlorite to citric acid to sodium chloride to sodium bicarbonate to magnesium sulfate is 4-6: 8-10: 1-3: 0.5-2: 2-4; the sustained release agent comprises the following components in parts by weight: the ratio of the sodium dihydrogen phosphate to the polyethylene glycol to the citric acid is 0.5-1.5: 0.5-1.5; the gel is sodium carboxymethyl cellulose. The preparation method comprises the following steps: mixing the powder, preparing a semi-finished product, transferring to a PE bottle, adhering a mark, printing a code and performing hot plastic package.)

1. The slow-release chlorine dioxide air purification gel is characterized by comprising the following components in percentage by weight: 1.8-3% of chlorine dioxide disinfectant, 10.3-14.7% of slow release agent, 6.4-9.6% of gel and 72.7-81.5% of deionized water; wherein the chlorine dioxide disinfectant comprises the following components in parts by weight: the ratio of sodium chlorite to citric acid to sodium chloride to sodium bicarbonate to magnesium sulfate is 4-6: 8-10: 1-3: 0.5-2: 2-4; the sustained release agent comprises the following components in parts by weight: the ratio of the sodium dihydrogen phosphate to the polyethylene glycol to the citric acid is 0.5-1.5: 0.5-1.5; the gel is sodium carboxymethyl cellulose.

2. The slow-release chlorine dioxide air purification gel is characterized by comprising the following components in percentage by weight: 1.9-2.1% of chlorine dioxide disinfectant, 11.4-12.6% of slow release agent, 7.6-8.4% of gel and 75-81% of deionized water; wherein the chlorine dioxide disinfectant comprises the following components in parts by weight: the ratio of sodium chlorite to citric acid to sodium chloride to sodium bicarbonate to magnesium sulfate is 4.5-5.5: 8.5-9.5: 1.5-2.5: 1-2: 2.5 to 3.5; the sustained release agent comprises the following components in parts by weight: the ratio of the sodium dihydrogen phosphate to the polyethylene glycol to the citric acid is 0.8-1.2: 0.8-1.2.

3. The slow-release chlorine dioxide air purification gel according to claim 1, which is composed of the following components in percentage by weight: 1.9 percent of chlorine dioxide disinfectant, 12.6 percent of slow release agent, 7.6 percent of gel and 77.9 percent of deionized water; wherein the chlorine dioxide disinfectant comprises the following components in parts by weight: sodium chlorite, citric acid, sodium chloride, sodium bicarbonate, magnesium sulfate ratio of 4: 8:1: 0.5: 2; the sustained release agent comprises the following components in parts by weight: the ratio of sodium dihydrogen phosphate, polyethylene glycol and citric acid is 0.5:0.6: 0.5.

4. The slow-release chlorine dioxide air purification gel according to claim 1, which is composed of the following components in percentage by weight: 2.1% of chlorine dioxide disinfectant, 11.4% of slow release agent, 8.4% of gel and 78.1% of deionized water; wherein the chlorine dioxide disinfectant comprises the following components in parts by weight: the ratio of sodium chlorite, citric acid, sodium chloride, sodium bicarbonate and magnesium sulfate is 6: 10: 3: 2: 4; the sustained release agent comprises the following components in parts by weight: the ratio of sodium dihydrogen phosphate, polyethylene glycol and citric acid was 1.5:1.4: 1.3.

5. The slow-release chlorine dioxide air purification gel according to claim 1, which is composed of the following components in percentage by weight: 2% of chlorine dioxide disinfectant, 12% of slow release agent, 8% of gel and 78% of deionized water; wherein the chlorine dioxide disinfectant comprises the following components in parts by weight: sodium chlorite, citric acid, sodium chloride, sodium bicarbonate, magnesium sulfate ratio of 5: 9: 2: 1: 3; the sustained release agent comprises the following components in parts by weight: the ratio of sodium dihydrogen phosphate, polyethylene glycol and citric acid is 1:1: 1.

6. The method for preparing a slow release chlorine dioxide air purification gel according to any one of claims 1 to 5, comprising the steps of:

1) weighing the components except the deionized water according to the weight percentage, and pouring the components into a powder mixer to fully mix the powder;

2) weighing the powder mixed in the step 1) according to the specification of 100 g/bottle, filling the powder into a transfer beaker, and adding deionized water in a mass ratio to the weighed powder mixed in the step 1) to obtain a semi-finished product;

3) transferring the semi-finished product obtained in the step 2) into a PE bottle, fully mixing, screwing a bottle cap after stirring and dissolving, and standing for 30 min;

4) and (5) sticking a mark on the PE bottle body, printing a code, and performing thermal plastic sealing to obtain a finished product.

7. The method for preparing a sustained-release chlorine dioxide air purification gel according to claim 6, wherein the stirring dissolution time of the step 3) is 20 s.

Technical Field

The invention relates to the technical field of air disinfection, in particular to a slow-release chlorine dioxide air purification gel and a preparation method thereof.

Background

Chlorine dioxide is a safe and nontoxic disinfectant, has no 'three-cause' effect (carcinogenesis, teratogenesis and mutagenesis), does not generate chlorination reaction with organic matters in the disinfection process to generate organic chloride or other toxic substances which can generate 'three-cause effect', has negligible influence on human bodies when the using concentration is lower than 500ppm, and does not generate any influence on the human bodies when the using concentration is lower than 100ppm, including physiological and biochemical influences.

The microorganisms in catering places and food processing plant workshops are large in types and quantity and complex in quantity, and the microorganisms are generally sterilized by ultraviolet rays, but the ultraviolet sterilization effect is not ideal due to the high relative humidity of indoor air.

The existing commonly used chlorine dioxide disinfectant is liquid after being prepared, and because the chlorine dioxide volatilizes fast and cannot be placed for a long time, the existing preparation is needed, the operation is relatively complicated, and the disinfection effect is not durable enough.

Aiming at the existing related research of chlorine dioxide gel, the research finds that CN101138644B discloses an aromatic slow-release chlorine dioxide gel powder and a preparation method thereof, wherein the aromatic slow-release chlorine dioxide gel powder is composed of the following raw materials by weight: 8-24 parts of chlorine dioxide matrix, 6-20 parts of slow-release activator, 10-25 parts of stabilizer, 10-24 parts of colloid agent, 3-7 parts of cross-linking agent and 1-4 parts of solid essence, wherein the colloid agent is one or a mixture of polyacrylate, cross-linked polyethylene oxide or alginate; CN101810874B discloses a slow-release chlorine dioxide gel, a preparation method and application thereof, wherein the slow-release chlorine dioxide gel comprises the following components in percentage by weight: 0.1-5.0% of chlorine dioxide precursor, 1.0-10.0% of gelling agent, 0.01-2.0% of chelating agent, 0.1-10.0% of activating agent, 30-70% of slow release agent, 0.1-5.0% of stabilizing agent and 0.1-5.0% of deionized water, wherein the deionized water is added to 100%, and the gelling agent is one or more of sodium polyacrylate, crosslinked polyacrylic resin, crosslinked polyvinyl alcohol, agar, xanthan gum, polyethylene oxide, starch graft copolymer and vinyl acetate copolymer. The two prior arts have the common problems of complex components and poor gel effect of the used gel, and the aromatic slow-release chlorine dioxide gel powder disclosed in CN101138644B is powdery, a certain amount of water needs to be poured in the gel during use, the gel is uniformly stirred, the water amount poured in firstly is not well controlled, and the gel is not convenient during use; the slow-release chlorine dioxide gel disclosed in CN101810874B has the main function of removing indoor formaldehyde and has insufficient effect of killing bacteria in the air.

Therefore, a chlorine dioxide gel product which has simple components, good gel effect, good sterilization effect, lasting effect, formaldehyde removal and air purification and is convenient to use is needed in the market.

Disclosure of Invention

Aiming at the technical defects, the invention aims to provide a slow-release chlorine dioxide air purification gel and a preparation method thereof, so as to solve the problems in the background art.

In order to solve the technical problems, the invention adopts the following technical scheme:

the invention provides a slow-release chlorine dioxide air purification gel which comprises the following components in percentage by weight: 1.8-3% of chlorine dioxide disinfectant, 10.3-14.7% of slow release agent, 6.4-9.6% of gel and 72.7-81.5% of deionized water; wherein the chlorine dioxide disinfectant comprises the following components in parts by weight: the ratio of sodium chlorite to citric acid to sodium chloride to sodium bicarbonate to magnesium sulfate is 4-6: 8-10: 1-3: 0.5-2: 2-4; the sustained release agent comprises the following components in parts by weight: the ratio of the sodium dihydrogen phosphate to the polyethylene glycol to the citric acid is 0.5-1.5: 0.5-1.5; the gel is sodium carboxymethyl cellulose.

Preferably, the slow-release chlorine dioxide air purification gel consists of the following components in percentage by weight: 1.9-2.1% of chlorine dioxide disinfectant, 11.4-12.6% of slow release agent, 7.6-8.4% of gel and 75-81% of deionized water; wherein the chlorine dioxide disinfectant comprises the following components in parts by weight: the ratio of sodium chlorite to citric acid to sodium chloride to sodium bicarbonate to magnesium sulfate is 4.5-5.5: 8.5-9.5: 1.5-2.5: 1-2: 2.5 to 3.5; the sustained release agent comprises the following components in parts by weight: the ratio of the sodium dihydrogen phosphate to the polyethylene glycol to the citric acid is 0.8-1.2: 0.8-1.2.

Preferably, the slow-release chlorine dioxide air purification gel consists of the following components in percentage by weight: 1.9 percent of chlorine dioxide disinfectant, 12.6 percent of slow release agent, 7.6 percent of gel and 77.9 percent of deionized water; wherein the chlorine dioxide disinfectant comprises the following components in parts by weight: sodium chlorite, citric acid, sodium chloride, sodium bicarbonate, magnesium sulfate ratio of 4: 8:1: 0.5: 2; the sustained release agent comprises the following components in parts by weight: the ratio of sodium dihydrogen phosphate, polyethylene glycol and citric acid is 0.5:0.6: 0.5.

Preferably, the slow-release chlorine dioxide air purification gel consists of the following components in percentage by weight: 2.1% of chlorine dioxide disinfectant, 11.4% of slow release agent, 8.4% of gel and 78.1% of deionized water; wherein the chlorine dioxide disinfectant comprises the following components in parts by weight: the ratio of sodium chlorite, citric acid, sodium chloride, sodium bicarbonate and magnesium sulfate is 6: 10: 3: 2: 4; the sustained release agent comprises the following components in parts by weight: the ratio of sodium dihydrogen phosphate, polyethylene glycol and citric acid was 1.5:1.4: 1.3.

Preferably, the slow-release chlorine dioxide air purification gel consists of the following components in percentage by weight: 2% of chlorine dioxide disinfectant, 12% of slow release agent, 8% of gel and 78% of deionized water; wherein the chlorine dioxide disinfectant comprises the following components in parts by weight: sodium chlorite, citric acid, sodium chloride, sodium bicarbonate, magnesium sulfate ratio of 5: 9: 2: 1: 3; the sustained release agent comprises the following components in parts by weight: the ratio of sodium dihydrogen phosphate, polyethylene glycol and citric acid is 1:1: 1.

The invention also provides a preparation method of the slow-release chlorine dioxide air purification gel, which comprises the following steps:

1) weighing the components except the deionized water according to the weight percentage, and pouring the components into a powder mixer to fully mix the powder;

2) weighing the powder mixed in the step 1) according to the specification of 100 g/bottle, filling the powder into a transfer beaker, and adding deionized water in a mass ratio to the weighed powder mixed in the step 1) to obtain a semi-finished product;

3) transferring the semi-finished product obtained in the step 2) into a PE bottle, fully mixing, screwing a bottle cap after stirring and dissolving, and standing for 30 min;

4) and (5) sticking a mark on the PE bottle body, printing a code, and performing thermal plastic sealing to obtain a finished product.

Preferably, the stirring dissolution time of the step 3) is 20 s.

The invention has the beneficial effects that:

1. the slow-release chlorine dioxide air purification gel uses sodium carboxymethylcellulose as a gelling agent, has good gelling effect and is superior to the existing products.

2. The slow-release chlorine dioxide air purification gel has good sterilization effect, and has the sterilization rate of over 99.99 percent on escherichia coli and the sterilization rate of over 99.91 percent on staphylococcus albus.

3. The slow-release chlorine dioxide air purification gel can effectively remove indoor harmful gases, and has a formaldehyde removal rate of 91.7% and a TVOC removal rate of 92.9%.

4. The slow-release chlorine dioxide air purification gel can be used for more than 60 days, has lasting disinfection effect and greatly reduces the use cost of the disinfectant.

5. The slow-release chlorine dioxide air purification gel can effectively solve the air disinfection problem of catering places and food processing factory production workshops with large number and complexity of microorganism species and relatively large humidity, and solves the problem of incomplete ultraviolet sterilization in the prior art.

6. When the slow-release chlorine dioxide air purification gel is used, the bottle cap is directly opened and the gel is placed in a space needing sterilization and disinfection, so that the gel is convenient and quick, has simple components and a simple preparation method, and is suitable for industrial production.

Detailed Description

The invention is illustrated by the following specific examples, which are not intended to be limiting.