阅读说明：本技术 一种具有消毒杀菌功能的空气净化膏及其制备方法 (Air purification paste with disinfection and sterilization functions and preparation method thereof ) 是由 沈明辉 简明 李刚 刘建 于 2020-04-05 设计创作，主要内容包括：本发明公开了一种具有消毒杀菌功能的空气净化膏及其制备方法,净化膏由水、二氧化氯、稳定剂、吸水剂组成,各组分的重量比为水：二氧化氯：稳定剂：吸水剂=(95-98)：(0.1-1.0)：(0.5-2.0)：(0.1-1.0)。其制备方法包括如下步骤：1)将二氧化氯气体通入到含有稳定剂的纯净水中,形成稳定的二氧化氯溶液；2)向稳定的二氧化氯溶液中加入吸水剂使其形成膏体；3)将步骤2)中的成品进行抽样检验,检验合格后包装成成品,使用时向这种空气净化膏中加入定量的活化剂。本发明的优点在于产品在使用期限内能缓慢释放出一种具有安全、高效、广谱消毒杀菌的二氧化氯气体,制备方法简单,原料易得,成本低。(The invention discloses an air purification paste with disinfection and sterilization functions and a preparation method thereof, wherein the purification paste consists of water, chlorine dioxide, a stabilizer and a water absorbent, and the weight ratio of the components is as follows: chlorine dioxide: a stabilizer: water-absorbing agent = (95-98): (0.1-1.0): (0.5-2.0): (0.1-1.0). The preparation method comprises the following steps: 1) introducing chlorine dioxide gas into purified water containing a stabilizer to form a stable chlorine dioxide solution; 2) adding a water absorbent into the stable chlorine dioxide solution to form paste; 3) sampling and inspecting the finished product in the step 2), packaging the finished product after the inspection is qualified, and adding a quantitative activating agent into the air purification paste when in use. The invention has the advantages that the product can slowly release chlorine dioxide gas with safety, high efficiency and broad-spectrum disinfection and sterilization in the service life, the preparation method is simple, the raw materials are easy to obtain, and the cost is low.)

1. The air purification paste with the disinfection and sterilization functions is characterized by comprising water, chlorine dioxide, a stabilizer and a water absorbent, wherein the weight ratio of the components is as follows: chlorine dioxide: a stabilizer: water-absorbing agent = (95-98): (0.1-1.0): (0.5-2.0): (0.1-1.0).

2. The air purification cream with disinfection and sterilization functions as claimed in claim 1, wherein the stabilizer is one or a mixture of more than two of sodium carbonate, sodium bicarbonate, sodium methoxide and sodium borate.

3. The air purification paste with disinfection and sterilization functions as claimed in claim 1, wherein the water absorbent is carboxymethyl cellulose grafted acrylic acid copolymer.

4. The air purifying paste with disinfection and sterilization functions as claimed in claim 1, wherein an activator consisting of monopotassium phosphate and citric acid is added when the air purifying paste is used, and the weight ratio of the monopotassium phosphate to the citric acid is as follows: 1:1, and the dosage of the activating agent is 5-10% of the weight of the air purification paste.

5. A preparation method of air purification paste with disinfection and sterilization functions is characterized by comprising the following steps:

1) introducing chlorine dioxide gas into purified water containing a stabilizer to form a stable chlorine dioxide solution;

2) adding a water absorbent into the stable chlorine dioxide solution to form paste;

3) sampling and inspecting the finished product in the step 2), packaging the finished product after the inspection is qualified, and adding a quantitative activating agent into the air purification paste when in use.

6. The method for preparing an air purification paste with disinfection and sterilization functions according to claim 5, wherein the stabilizer added in the step 1) is one or a mixture of more than two of sodium carbonate, sodium bicarbonate, sodium methoxide and sodium borate, and the amount of the stabilizer is 0.2-2.0% of the total weight of the solution.

7. The method for preparing air purification paste with disinfection and sterilization functions according to claim 5, wherein the concentration of chlorine dioxide in the stable chlorine dioxide solution in step 1) is 0.2-2.0%.

8. The method for preparing air purification paste with disinfection and sterilization functions according to claim 5, wherein the water absorbent added in the step 2) is carboxymethyl cellulose grafted acrylic acid copolymer, and the amount of carboxymethyl cellulose grafted acrylic acid copolymer is 0.1-1.0% of the total weight of the stable chlorine dioxide solution.

9. The method for preparing the air purification paste with the disinfection and sterilization functions according to claim 5, wherein the activating agent added in the step 3) is a compound agent of potassium dihydrogen phosphate and citric acid, and the weight ratio of the potassium dihydrogen phosphate to the citric acid is as follows: 1:1, and the dosage of the activating agent is 5-10% of the weight of the air purification paste.

Technical Field

The invention relates to the field of air purifiers, in particular to an air purification paste with disinfection and sterilization functions and a preparation method thereof.

Background

Air purifiers currently marketed are generally of several types: adsorption type air purificant, such as activated carbon, bamboo charcoal, coconut vitamin carbon; covering-type deodorants, such as gel-off cartridges, air fresheners; a decomposition-type deodorant. The adsorption type air purifying agent is used for removing pollutants by utilizing the physical adsorption, chemical adsorption, oxidation, catalytic oxidation, reduction and other properties of the activated carbon. The covering type smell removing agent is used for covering various peculiar smells in the air by utilizing the fragrance of aromatic hydrocarbon so as to achieve the effect of removing the smell. The decomposition type air purifying agent separates metal ions, anions and neutral molecules in various natural minerals by a base-decomposing complexing technology at high temperature and negative pressure, recombines the metal ions, the anions and the neutral molecules, and combines the anions or the molecules around a central ion or a neutral atom through a coordination bond, thereby forming a stable new ion or molecule structure with strong oxidation effect to remove peculiar smell. These air purifiers have no or only weak sterilization function, and also have a problem of inconvenience in storage and transportation of liquid air purifiers.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides an air purification paste with disinfection and sterilization functions and a preparation method thereof.

The invention adopts the following technical scheme.

An air purification paste with disinfection and sterilization functions, which consists of water, chlorine dioxide, a stabilizer and a water absorbent, wherein the weight ratio of the components is as follows: chlorine dioxide: a stabilizer: water-absorbing agent = (95-98): (0.1-1.0): (0.5-2.0): (0.1-1.0).

The stabilizer is one or a mixture of more than two of sodium carbonate, sodium bicarbonate, sodium methoxide and sodium borate.

The water absorbent is carboxymethyl cellulose grafted acrylic acid copolymer.

When the air purification paste is used, an activating agent consisting of monopotassium phosphate and citric acid is added, wherein the weight ratio of the monopotassium phosphate to the citric acid is as follows: 1:1, and the dosage of the activating agent is 5-10% of the weight of the air purification paste.

A preparation method of air purification paste with disinfection and sterilization functions comprises the following steps:

1) introducing chlorine dioxide gas into purified water containing a stabilizer to form a stable chlorine dioxide solution;

2) adding a water absorbent into the stable chlorine dioxide solution to form paste;

3) sampling and inspecting the finished product in the step 2), packaging the finished product after the inspection is qualified, and adding a quantitative activating agent into the air purification paste when in use.

The stabilizer added in the step 1) is one or a mixture of more than two of sodium carbonate, sodium bicarbonate, sodium methoxide and sodium borate, and the dosage of the stabilizer is 0.2-2.0% of the total weight of the solution.

The concentration of chlorine dioxide in the stable chlorine dioxide solution in the step 1) is 0.2-2.0%.

The water absorbent added in the step 2) is carboxymethyl cellulose grafted acrylic acid copolymer, and the dosage of the carboxymethyl cellulose grafted acrylic acid copolymer is 0.1-1.0% of the total weight of the stable chlorine dioxide solution.

The activating agent added in the step 3) is a compound agent of potassium dihydrogen phosphate and citric acid, and the weight ratio of the potassium dihydrogen phosphate to the citric acid is as follows: 1:1, and the dosage of the activating agent is 5-10% of the weight of the air purification paste.

Compared with the prior art, the invention has the advantages that the product can slowly release the chlorine dioxide gas with safety, high efficiency and broad-spectrum disinfection and sterilization in the service life, thereby sterilizing, disinfecting and deodorizing the air in the environmental space. The water absorbent carboxymethyl cellulose grafted acrylic acid copolymer can change chlorine dioxide solution into paste, can effectively control the release speed of chlorine dioxide, can sterilize and disinfect the product, can be safely used for a long time, and avoids the inconvenience of using and transporting the chlorine dioxide solution. The preparation method is simple, the raw materials are easy to obtain, the cost is low, and the preparation method is suitable for large-scale production.

Detailed Description

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

Example 1

Weighing 5 g of sodium carbonate, 5 g of sodium bicarbonate and 10 g of sodium methoxide, adding the sodium carbonate, the sodium bicarbonate and the sodium methoxide into 1000ml of purified water for dissolving, and then introducing 20 g of separated and purified chlorine dioxide gas into the solution to obtain 1000ml of 2% chlorine dioxide stable solution. 100ml of 2 percent chlorine dioxide stable solution is taken, 1.0 g of water absorbent carboxymethyl cellulose grafted acrylic copolymer is added to prepare colloidal paste, and the colloidal paste is packaged into a finished product by a special packaging bottle after being detected to be qualified. 100 g of each of potassium dihydrogen phosphate and citric acid was weighed and mixed uniformly, and 10 g was packed in a paper bag.

Example 2

2.5 g of sodium carbonate, 2.5 g of sodium bicarbonate and 5 g of sodium methoxide are weighed and added into 1000ml of purified water for dissolution, and then 10 g of separated and purified chlorine dioxide gas is introduced into the solution to obtain 1000ml of 1 percent chlorine dioxide stable solution. Taking 100ml of 1% chlorine dioxide stable solution, adding 0.5 g of water absorbent carboxymethyl cellulose grafted acrylic acid copolymer to prepare colloidal paste, and packaging the colloidal paste into a finished product by using a specific packaging bottle after the colloidal paste is detected to be qualified. 100 g of each of potassium dihydrogen phosphate and citric acid was weighed and mixed uniformly, and 8.0 g was packed in a paper bag.

Example 3

Weighing 4.5 g of sodium carbonate, 4.5 g of sodium bicarbonate and 9 g of sodium methoxide, adding the sodium carbonate, the sodium bicarbonate and the sodium methoxide into 1000ml of purified water for dissolving, and then introducing 8.0 g of separated and purified chlorine dioxide gas into the solution to obtain 1000ml of 0.8 percent stable chlorine dioxide solution. Taking 100ml of 0.8% chlorine dioxide stable solution, adding 0.5 g of water absorbent carboxymethyl cellulose grafted acrylic acid copolymer to prepare colloidal paste, and packaging the colloidal paste into a finished product by using a specific packaging bottle after the colloidal paste is qualified. 100 g of each of potassium dihydrogen phosphate and citric acid was weighed and mixed uniformly, and 8.0 g was packed in a paper bag.

Example 4

Weighing 4.0 g of sodium carbonate, 4.0 g of sodium bicarbonate and 8 g of sodium methoxide, adding the sodium carbonate, the sodium bicarbonate and the sodium methoxide into 1000ml of purified water for dissolving, and then introducing 6.0 g of separated and purified chlorine dioxide gas into the solution to obtain 1000ml of 0.6 percent chlorine dioxide stable solution. Taking 100ml of 0.6% chlorine dioxide stable solution, adding 0.5 g of water absorbent carboxymethyl cellulose grafted acrylic acid copolymer to prepare colloidal paste, and packaging the colloidal paste into a finished product by using a specific packaging bottle after the colloidal paste is qualified. 100 g of each of potassium dihydrogen phosphate and citric acid was weighed and mixed uniformly, and 8.0 g was packed in a paper bag.

Example 5

3.5 g of sodium carbonate, 3.5 g of sodium bicarbonate and 7 g of sodium methoxide are weighed and added into 1000ml of purified water for dissolution, and then 4.0 g of separated and purified chlorine dioxide gas is introduced into the solution to obtain 1000ml of 0.4 percent stable chlorine dioxide solution. Taking 100ml of 0.4% chlorine dioxide stable solution, adding 0.2 g of water absorbent carboxymethyl cellulose grafted acrylic acid copolymer to prepare colloidal paste, and packaging the colloidal paste into a finished product by using a specific packaging bottle after the colloidal paste is qualified. 100 g of each of potassium dihydrogen phosphate and citric acid was weighed and mixed uniformly, and 5.0 g was packed in a paper bag.

Example 6

3.0 g of sodium carbonate, 3.0 g of sodium bicarbonate and 6 g of sodium methoxide are weighed and added into 1000ml of purified water for dissolution, and then 2.0 g of separated and purified chlorine dioxide gas is introduced into the solution to obtain 1000ml of 0.8 percent stable chlorine dioxide solution. Taking 100ml of 0.2% chlorine dioxide stable solution, adding 0.1 g of water absorbent carboxymethyl cellulose grafted acrylic acid copolymer to prepare colloidal paste, and packaging the colloidal paste into a finished product by using a specific packaging bottle after the colloidal paste is qualified. 100 g of each of potassium dihydrogen phosphate and citric acid was weighed and mixed uniformly, and 5.0 g was packed in a paper bag.

Comparative experiment 1

Comparison table of chlorine dioxide release speed and concentration of 50m3 space house

Example No. 2	Chlorine dioxide release rate (mg/h)	Chlorine dioxide space concentration (PPm)
			Example 1	2.0	79
Example 2	1.7	75
			Example 3	1.5	72
Example 4	1.0	67
			Example 5	0.75	65
Example 6	0.45	61

Comparative experiment 2

Comparison experiment of the dosage of the water absorbent carboxymethyl cellulose grafted acrylic acid copolymer on the release rate of chlorine dioxide: the air purification paste finished product is prepared according to the example 1, and the water absorbent carboxymethyl cellulose grafted acrylic acid copolymer is used in the following amount: 1.0 grams, 0.8 grams, 0.6 grams, 0.4 grams, 0.2 grams, 0.1 grams, chlorine dioxide release rate vs table:

amount of carboxymethyl cellulose-grafted acrylic copolymer (%)	Chlorine dioxide release rate (mg/h)
		1.0	2.0
0.8	2.1
		0.6	2.5
0.4	2.5
		0.2	3.1
0.1	3.9

Comparative experiment 3

Example 1 was subjected to a chlorine dioxide release rate over time experiment and the results are shown in the following table:

time (sky)	Chlorine dioxide release rate (mg/h)
		1	2.0
10	1.6
		20	1.5
30	1.2
		40	1.0
50	0.7
		60	0.6

Comparative experiment 4

Air purification effect experiment: the performance tests of the examples 1 to 6 are carried out according to the QB/T2761-2006 standard, and the sterilization rate of the product on different strains is up to more than 99.999%.

The chlorine dioxide release rate was measured iodometrically and the space concentration of chlorine dioxide was measured using a HFPCY-ClO2 portable chlorine dioxide detector.