CN112535905B

CN112535905B - Air filter net film with antibacterial, insect-proof and formaldehyde-removing functions and manufacturing method thereof

Info

Publication number: CN112535905B
Application number: CN201910899957.7A
Authority: CN
Inventors: 王晓文; 高伟业; 卢海峰
Original assignee: Sambo Group Technology Ltd
Current assignee: Sambo Group Technology Ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2022-06-10
Anticipated expiration: 2039-09-23
Also published as: CN112535905A

Abstract

The invention discloses an air filter net film with antibacterial, insect-proof and formaldehyde-removing functions and a manufacturing method thereof, wherein the method comprises the following steps: preparing functional nano microemulsion of 0.5-1% of pyrethrin, 1-3% of dispersant, 0.5-2% of titanium dioxide photocatalyst hydrosol, 0.1-3% of thickening agent and 1-5% of bamboo charcoal particles; the functional nano microemulsion is used for carrying out load coating treatment on the air filter membrane substrate, and the invention has the following beneficial effects: the air filter net film prepared by the method has the functions of lasting antibiosis, insect prevention and formaldehyde removal, and further improves the air quality, so that the air filter net film can be used in ventilation systems of any vehicles, houses and office buildings, and can be used for one floor above the filtering effect of the original air filter net film.

Description

Air filter net film with antibacterial, insect-proof and formaldehyde-removing functions and manufacturing method thereof

Technical Field

The invention relates to the field of air purification environment-friendly materials, in particular to an air filter net film with antibacterial, insect-proof and formaldehyde-removing functions and a manufacturing method thereof.

Background

The filter effect is the first function of filtration, and the precision is high effectual, and the inhaled dust, bacterium and air contaminant just can obviously reduce, just so can the influence of greatly reduced harmful air to the health, and some people know this reason, but few someone combines together filtration precision and functionality of filtration. The air-filtering net film is just like the nose and throat of a person, and if the air-filtering net film has no good quality, the air-filtering net film is just like the person placed in haze, the life of the air-filtering net film is damaged, and the health of the air-filtering net film is affected. The addition of functionality provides a guarantee for the quality of the filter net film.

Since human life is most of the life when living indoors, and the longest is the residence, the effect of indoor air quality on quality of life is extremely important. At present, the fresh air system is installed in most office buildings, and the fresh air system has the functions of effectively ventilating indoors, filtering air, improving air quality, meeting national relevant standards, reducing energy consumption of an air conditioner and adding other functions which enable a human body to feel comfortable. The air filter net film plays a very important role in office and residential buildings, plays a very important role in automobile maintenance, can suck a large amount of air in the running process of an engine, increases the burden of a cylinder barrel and a piston assembly due to impurities, insects and particles in the air, and can filter the impurities, the insects and the particles in the air to protect the normal running of the engine.

Most of the existing air filter net membranes mainly have the functions of filtering dust, particles and micro-fibers, and filtering bacteria, insects and indoor volatile harmful gases is neglected.

Disclosure of Invention

The present invention provides an air-filtering net membrane with antibacterial, insect-preventing and formaldehyde-removing functions and a method for making the same, which aims to solve the above-mentioned problems of the prior art that need to be solved and the problem of filtering bacteria, insects and indoor volatile harmful gases.

The technical scheme adopted by the invention for solving the technical problems is as follows: a manufacturing method for constructing an air filter net film with antibacterial, insect-proof and formaldehyde-removing functions comprises the following steps:

the preparation method of the functional nano microemulsion comprises the following steps: preparing functional nano microemulsion of 0.5-1% of pyrethrin, 1-3% of dispersant, 0.5-2% of titanium dioxide photocatalyst hydrosol, 0.1-3% of thickening agent and 1-5% of bamboo charcoal particles;

loading a coating: and carrying out load coating treatment on the air filter membrane substrate by using the functional nano microemulsion.

Preferably, the method further comprises:

airing/drying: and (3) placing the filter screen membrane substrate subjected to the load coating treatment in a room temperature environment so as to be dried in the air or dried below 120 ℃.

Preferably, the preparation steps of the functional nano microemulsion specifically comprise:

uniformly mixing 0.5-1% of pyrethrin and 1-3% of dispersant, adding 86-96.9% of water, and performing high-speed shearing to obtain a pyrethrin microemulsion;

and then adding 0.5-2% of titanium dioxide photocatalyst hydrosol, 0.1-3% of thickening agent and 1-5% of bamboo charcoal particles into the pyrethrin microemulsion, and uniformly stirring to obtain the functional nano microemulsion.

Preferably, in the step of loading coating, the functional nano microemulsion is used for loading coating treatment on the air filter membrane substrate by a pulling method, a spraying method or a blade coating method.

Preferably, the pyrethrin is oil-in-water type microcapsule with the particle size of 100-200 nanometers, the titanium dioxide photocatalyst is 10-100 nanometers, and the bamboo charcoal is particles with the particle size of 300-800 micrometers.

In another aspect of the invention, an air-filtering mesh membrane is constructed, which is made according to the method of any one of the preceding claims.

The air filter net film with the functions of resisting bacteria, preventing insects and removing formaldehyde and the manufacturing method thereof have the following beneficial effects: the air filter net film prepared by the method has the functions of lasting antibiosis, insect prevention and formaldehyde removal, and further improves the air quality, so that the air filter net film can be used in ventilation systems of any vehicles, houses and office buildings, and can be used for one floor above the filtering effect of the original air filter net film.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts:

FIG. 1 is a flow chart of the manufacturing method of the present invention.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. Exemplary embodiments of the invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the embodiments and specific features in the embodiments of the present invention are described in detail in the present application, but not limited to the present application, and the features in the embodiments and specific features in the embodiments of the present invention may be combined with each other without conflict.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, the method for manufacturing an air filter net film with antibacterial, insect-proof and formaldehyde-removing functions according to the present invention includes:

A functional nano microemulsion preparation step S101: preparing functional nano microemulsion containing 0.5-1% of pyrethrin, 1-3% of dispersing agent, 0.5-2% of titanium dioxide photocatalyst hydrosol, 0.1-3% of thickening agent and 1-5% of bamboo charcoal particles;

load coating step S102: and carrying out load coating treatment on the air filter membrane substrate by using the functional nano microemulsion.

Specifically, the air filter membrane substrate may be subjected to a load coating treatment by a drawing method, a spraying method or a blade coating method.

The air filter net membrane base material comprises all air filter materials made of textile non-woven fabrics, plastics, metals and the like commonly used by vehicle-mounted and indoor ventilation systems.

Preferably, after the step S102, a drying/drying step S103 is further included: and (3) placing the filter net membrane substrate subjected to the load coating treatment in a room temperature environment so as to be dried in the air or dried below 120 ℃ to obtain the final air filter net membrane.

Wherein the pyrethrin is an oil-in-water microcapsule with the particle size of 100-200 nanometers, the titanium dioxide photocatalyst has the particle size of 10-100 nanometers, and the bamboo charcoal has the particle size of 300-800 micrometers. The titanium dioxide photocatalyst hydrosol and the bamboo charcoal particles are mixed to play a good and lasting antibacterial and formaldehyde removing function under weak light; the pyrethrin microemulsion has lasting insect prevention and expelling efficacy.

For example, one particular embodiment of the method of the present invention comprises:

firstly, uniformly mixing 1% of pyrethrin and 2% of dispersant, then adding 92% of water, and carrying out high-speed shearing at 6000 revolutions per minute to obtain pyrethrin microemulsion;

then, adding 1% of titanium dioxide photocatalyst hydrosol, 1% of thickening agent and 3% of bamboo charcoal particles into the pyrethrin microemulsion, and uniformly stirring to obtain the functional nano microemulsion;

and finally, pulling the air-filtering net film base material once at a speed of 10 cm/min by a pulling method, drying at 80 ℃, and repeating the operation for 2 times to obtain the air-filtering net film with the functions of lasting antibiosis, insect prevention and formaldehyde removal.

Referring to the method for measuring the purification effect of the indoor air purification product of QB/T2761-2006, the results of the formaldehyde removal rate test of the air filter net membrane prepared according to the above embodiment of the present invention are shown in table 1.

Table 1 air filtration membrane formaldehyde removal test report

Referring to NY/T1151.2-2006 pesticide indoor pesticide effect test method for pesticide registration hygiene and evaluation part II: miticidal and acaricidal agents, test insects: dust mite, male and female adults, test conditions: the temperature of the incubator is 25 ℃ +/-2 ℃, the relative humidity is 75% +/-5%, and the result of the mite repellency rate test of the air filter net membrane prepared by the embodiment of the invention is shown in table 2.

Table 2 test report of repellency rate of air filtration omentum mites

The results of the antibacterial testing of the air-filter mesh membranes made in the above examples of the invention are shown in table 3 with reference to the test for antibacterial performance of GB/T23763-2009.

TABLE 3 antibacterial test report for air filtration web

In conclusion, the air filter net film with the functions of resisting bacteria, preventing insects and removing formaldehyde and the manufacturing method thereof have the following beneficial effects: the air filter net film prepared by the method has the functions of lasting antibiosis, insect prevention and formaldehyde removal, and further improves the air quality, so that the air filter net film can be used in ventilation systems of any vehicles, houses and office buildings, and can be used for one floor above the filtering effect of the original air filter net film.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A manufacturing method of an air filter net film with antibacterial, insect-proof and formaldehyde-removing functions is characterized by comprising the following steps:

loading a coating: carrying out load coating treatment on the air filter membrane substrate by using the functional nano microemulsion;

wherein the preparation steps of the functional nano microemulsion specifically comprise: uniformly mixing 0.5-1% of pyrethrin and 1-3% of dispersant, adding 86-96.9% of water, and performing high-speed shearing to obtain a pyrethrin microemulsion; and then adding 0.5-2% of titanium dioxide photocatalyst hydrosol, 0.1-3% of thickening agent and 1-5% of bamboo charcoal particles into the pyrethrin microemulsion, and uniformly stirring to obtain the functional nano microemulsion.

2. The method of claim 1, further comprising:

3. The method according to claim 1, wherein in the step of loading coating, the functional nano-microemulsion is used for loading coating treatment on the air filter membrane substrate by a pulling method, a spraying method or a blade method.

4. The method as claimed in claim 1, wherein the pyrethrin is oil-in-water type microcapsule with particle size of 100-200 nm, the titanium dioxide photocatalyst has particle size of 10-100 nm, and the bamboo charcoal has particle size of 300-800 μm.

5. An air-filtering mesh membrane produced by the method of any one of claims 1-4.