阅读说明：本技术 一种具有吸附甲醛功能的无纺布复合材料制备方法及应用 (Preparation method and application of non-woven fabric composite material with formaldehyde adsorption function ) 是由 余习文 于 2021-11-04 设计创作，主要内容包括：本发明公开了一种具有吸附甲醛功能的无纺布复合材料制备方法及应用,属于环保材料制备技术领域,如下步骤：按质量份数称取可溶性淀粉2～5份,乳清酸5～10份,六次甲基四胺3～8份,氯化羟胺3～5份,丙烯酸甲酯3～5份,氨基酸2～5份,尿素2～5份,次氯酸钠3～5份,卡拉胶2～5份,蜜胶2～5份,表面活性剂1～2份,分散剂1～2份,抑菌提取液1～2份,蒸馏水一定量,搅拌均匀得到混合溶液,再将所述混合溶液均匀喷涂在无纺布骨材上,烘干,即得具有吸附甲醛功能的无纺布复合材料；本发明提供的无纺布复合材料透气性好、厚度薄、强度高和吸附性能好,能够迅速将空气中的甲醛分子去除掉,而且复合材料制备工艺简单,实用性强。(The invention discloses a preparation method and application of a non-woven fabric composite material with a formaldehyde adsorption function, belonging to the technical field of preparation of environment-friendly materials and comprising the following steps: weighing 2-5 parts of soluble starch, 5-10 parts of orotic acid, 3-8 parts of hexamethylenetetramine, 3-5 parts of hydroxylamine chloride, 3-5 parts of methyl acrylate, 2-5 parts of amino acid, 2-5 parts of urea, 3-5 parts of sodium hypochlorite, 2-5 parts of carrageenan, 2-5 parts of honey gum, 1-2 parts of surfactant, 1-2 parts of dispersing agent, 1-2 parts of antibacterial extracting solution and a certain amount of distilled water, uniformly stirring to obtain a mixed solution, uniformly spraying the mixed solution on a non-woven fabric aggregate, and drying to obtain the non-woven fabric composite material with the formaldehyde adsorption function; the non-woven fabric composite material provided by the invention has the advantages of good air permeability, thin thickness, high strength and good adsorption performance, can quickly remove formaldehyde molecules in the air, and is simple in preparation process and strong in practicability.)

1. A preparation method of a non-woven fabric composite material with a formaldehyde adsorption function is characterized by comprising the following steps:

s1, weighing 2-5 parts of soluble starch, 5-10 parts of orotic acid, 3-8 parts of hexamethylenetetramine, 3-5 parts of hydroxylamine chloride, 3-5 parts of methyl acrylate, 2-5 parts of amino acid, 2-5 parts of urea, 3-5 parts of sodium hypochlorite, 2-5 parts of carrageenan, 2-5 parts of honey gum, 1-2 parts of surfactant, 1-2 parts of dispersing agent, 1-2 parts of bacteriostatic extracting solution and a certain amount of distilled water according to the mass parts;

s2, uniformly stirring the raw materials to obtain a mixed solution;

s3, uniformly spraying the mixed solution on a non-woven fabric aggregate, wherein the spraying amount is 100mL/min, and the spraying speed is 1 m/S;

and S4, drying the non-woven fabric to obtain the non-woven fabric composite material with the formaldehyde adsorption function.

2. The method for preparing the non-woven fabric composite material with the formaldehyde adsorption function according to claim 1, wherein in the step S1, the soluble starch, the orotic acid, the hexamethylenetetramine, the hydroxylamine chloride, the methyl acrylate, the amino acid, the urea, the sodium hypochlorite, the carrageenan, the surfactant and the dispersant are 200-300 meshes, and the distilled water temperature is 15-30 ℃.

3. The method of claim 1, wherein in step S1, the amino acid is one or more of arginine, aspartic acid, guanadine, and glutamic acid.

4. The method for preparing the non-woven fabric composite material with the formaldehyde adsorption function according to claim 1, wherein in the step S4, the drying temperature is 80-105 ℃.

5. The non-woven fabric composite material with the formaldehyde adsorption function, which is prepared by the preparation method of the non-woven fabric composite material with the formaldehyde adsorption function, is characterized in that the air permeability of the non-woven fabric composite material with the formaldehyde adsorption function is 2324-2904 mm/s, the resistance is 5-15 pa, the extending length of the stiffness is 16.00-18.00 cm, and the thickness is mainly distributed in the range of 0.1-10 mm.

6. The non-woven fabric composite material with the formaldehyde adsorption function prepared by the preparation method of the non-woven fabric composite material with the formaldehyde adsorption function according to claim 5 is characterized in that the half-hour formaldehyde removal rate of the non-woven fabric composite material with the formaldehyde adsorption function is 93-99%.

7. The non-woven fabric composite material with the formaldehyde adsorption function prepared by the preparation method of the non-woven fabric composite material with the formaldehyde adsorption function according to claim 5, wherein the CADR value of the non-woven fabric composite material with the formaldehyde adsorption function for formaldehyde is 200-400 m for each hour.

8. Use of the non-woven fabric composite material with formaldehyde adsorption function according to any one of claims 6 to 7 for reducing the formaldehyde content in air.

Technical Field

The invention belongs to the technical field of preparation of environment-friendly materials, and particularly relates to a preparation method and application of a non-woven fabric composite material with a formaldehyde adsorption function.

Background

Along with the development of times, harmful substances such as formaldehyde, benzene and the like during decoration are hidden in the deep parts of furniture and wall materials, and the harmful substances cannot be cleared in a short time after the release period is 3-15 years. Formaldehyde is a colorless gas and is a pungent odor gas. Formaldehyde has a wide effect in life, mainly in chemical industry, wood industry or textile industry, has a great deal of harm, and even can endanger life.

The indoor purifying and formaldehyde eliminating method at home and abroad includes physical adsorption, such as active carbon, biodegradation, such as green plants, physical and chemical combination, such as air purifier, and chemical oxidizing agents, such as chlorine dioxide, ozone and the like, which belong to the methods for purifying and eliminating formaldehyde. The effect of the air purifier for solving the problem that the indoor formaldehyde exceeds the standard is generally accepted. The air purifier can effectively neutralize harmful gas emitted from volatile organic compounds, formaldehyde, benzene, pesticides, vaporous hydrocarbon and paint, and simultaneously achieve the effect of body discomfort caused by harmful gas inhalation. Air is the only thing that we can't see along with 24 hours, and its influence to the human body is stealthy, and long-term not paying attention to air quality can influence our health and life efficiency.

However, the existing air purifier adsorbent has a slow formaldehyde purification effect and is difficult to meet the requirement of quickly degrading formaldehyde.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the existing air purifier adsorbent has a slow formaldehyde purification effect, is difficult to meet the requirement of quickly degrading formaldehyde, and provides a preparation method of a non-woven fabric composite material with a formaldehyde adsorption function, which comprises the following steps:

the invention solves the technical problems through the following technical scheme, and the preparation method of the non-woven fabric composite material with the formaldehyde adsorption function comprises the following steps:

s1, weighing 2-5 parts of soluble starch, 5-10 parts of orotic acid, 3-8 parts of hexamethylenetetramine, 3-5 parts of hydroxylamine chloride, 3-5 parts of methyl acrylate, 2-5 parts of amino acid, 2-5 parts of urea, 3-5 parts of sodium hypochlorite, 2-5 parts of carrageenan, 2-5 parts of honey gum, 1-2 parts of surfactant, 1-2 parts of dispersing agent, 1-2 parts of bacteriostatic extracting solution and a certain amount of distilled water according to the mass parts;

s2, uniformly stirring the raw materials to obtain a mixed solution;

s3, uniformly spraying the mixed solution on a non-woven fabric aggregate, wherein the spraying amount is 100mL/min, and the spraying speed is 1 m/S;

and S4, drying the non-woven fabric to obtain the non-woven fabric composite material with the formaldehyde adsorption function.

The invention also discloses a preparation method of the non-woven fabric composite material with the formaldehyde adsorption function, and the prepared non-woven fabric composite material with the formaldehyde adsorption function has the advantages that preferably, the air permeability of the non-woven fabric composite material with the formaldehyde adsorption function is 2324-2904 mm/s;

preferably, the resistance of the non-woven fabric composite material with the formaldehyde adsorption function is 5-15 pa;

preferably, the amino acid in the non-woven fabric composite material with the formaldehyde adsorption function is one or more of arginine, aspartic acid, guanadine and glutamic acid;

further, the extending length of the stiffness of the non-woven fabric composite material with the formaldehyde adsorption function is 16.00-18.00 cm;

preferably, the thickness of the non-woven fabric composite material with the formaldehyde adsorption function is mainly distributed in the range of 0.1-10 mm;

preferably, the amino acid for synthesizing the non-woven fabric composite material with the formaldehyde adsorption function is one or more of arginine, aspartic acid, guanamine acid and glutamic acid;

preferably, the CADR value of the non-woven fabric composite material with the formaldehyde adsorption function is 100-200 m for carrying out dry distillation/h;

preferably, the non-woven fabric composite material with the formaldehyde adsorption function has a formaldehyde removal rate of 93-99% in half an hour.

Further, the application of the high-purity activated carbon material for air purification in reducing the content of VOCs in polluted gas.

Compared with the prior art, the invention has the following advantages:

according to the preparation method of the non-woven fabric composite material with the formaldehyde adsorption function, the non-woven fabric composite material with the formaldehyde adsorption function is small in resistance and high in air permeability by setting the proper proportion, the spraying speed and the spraying time, the thickness of the non-woven fabric composite material is increased, more adsorption materials are loaded, and formaldehyde gas is more easily degraded. The advantages of good air permeability and small resistance can make the transmission of formaldehyde more convenient, thereby improving the adsorption performance of the formaldehyde.

The non-woven fabric composite material with the formaldehyde adsorption function, which is prepared by the invention, has the air permeability of 2324-2904 mm/s, the resistance of 5-15 pa, the extending length of the stiffness of 16.00-18.00 cm and the thickness of 0.1-10 mm. The adsorption material is introduced, and the complexing ability of the adsorbent to formaldehyde is improved, so that the adsorbent is good in air permeability, multiple in adsorption sites and good in adsorption performance;

the non-woven fabric composite material with the formaldehyde adsorption function can be applied to other aspects, such as wall cloth, furniture packaging paper and other articles, can reduce formaldehyde in an area at any time, is wide in application, and is extremely simple and convenient to manufacture and easy to operate.

Drawings

FIG. 1 is a flow chart of the preparation of the non-woven fabric composite material with formaldehyde adsorption function of the invention;

FIG. 2 is a scanning electron microscope image of the nonwoven fabric composite material having formaldehyde adsorbing function.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

The embodiment provides a preparation method of a non-woven fabric composite material with a formaldehyde adsorption function, and a schematic diagram of a preparation process of the non-woven fabric composite material with the formaldehyde adsorption function is shown in fig. 1.

The preparation method comprises the following steps:

s1, weighing the following raw materials:

weighing 3 parts of soluble starch, 6 parts of orotic acid, 4 parts of hexamethylenetetramine, 4 parts of hydroxylamine chloride, 4 parts of methyl acrylate, 4 parts of amino acid, 4 parts of urea, 4 parts of sodium hypochlorite, 3 parts of carrageenan, 2 parts of honey gum, 2 parts of surfactant, 2 parts of dispersant, 2 parts of antibacterial extracting solution and a certain amount of distilled water according to the mass parts; the amino acid is a mixture of arginine, aspartic acid, guanadine and glutamic acid;

s2, mixing:

uniformly stirring the raw materials to obtain a mixed solution; the temperature of the distilled water is 20 ℃;

s3, spraying:

then uniformly spraying the mixed solution on non-woven fabric aggregates, wherein the spraying amount is 100mL/min, and the spraying speed is 1 m/s;

s4, drying:

finally, drying the non-woven fabric to obtain the non-woven fabric composite material with the formaldehyde adsorption function, and marking as W₁。

Example 2

The embodiment provides a preparation method of a non-woven fabric composite material with a formaldehyde adsorption function, which comprises the following steps:

s1, weighing the following raw materials:

weighing 4 parts of soluble starch, 7 parts of orotic acid, 5 parts of hexamethylenetetramine, 5 parts of hydroxylamine chloride, 5 parts of methyl acrylate, 5 parts of amino acid, 4 parts of urea, 4 parts of sodium hypochlorite, 4 parts of carrageenan, 4 parts of honey gum, 2 parts of surfactant, 2 parts of dispersant, 2 parts of antibacterial extracting solution and a certain amount of distilled water according to the mass parts; the amino acid is a mixture of arginine, aspartic acid, guanadine and glutamic acid;

s2, mixing:

uniformly stirring the raw materials to obtain a mixed solution; the temperature of the distilled water is 20 ℃;

s3, spraying:

then uniformly spraying the mixed solution on non-woven fabric aggregates, wherein the spraying amount is 100mL/min, and the spraying speed is 1 m/s;

s4, drying:

finally, drying the non-woven fabric to obtain the non-woven fabric composite material with the formaldehyde adsorption function, and marking as W₂。

Example 3

The embodiment provides a preparation method of a non-woven fabric composite material with a formaldehyde adsorption function, which comprises the following steps:

s1, weighing the following raw materials:

weighing 5 parts of soluble starch, 8 parts of orotic acid, 5 parts of hexamethylenetetramine, 5 parts of hydroxylamine chloride, 5 parts of methyl acrylate, 5 parts of amino acid, 5 parts of urea, 5 parts of sodium hypochlorite, 2 parts of carrageenan, 2 parts of honey gum, 2 parts of surfactant, 2 parts of dispersant, 2 parts of bacteriostatic extracting solution and a certain amount of distilled water according to the parts by weight; the amino acid is a mixture of arginine, aspartic acid, guanadine and glutamic acid;

s2, mixing:

uniformly stirring the raw materials to obtain a mixed solution; the temperature of the distilled water is 20 ℃;

s3, spraying:

then uniformly spraying the mixed solution on non-woven fabric aggregates, wherein the spraying amount is 100mL/min, and the spraying speed is 1 m/s;

s4, drying:

finally, drying the non-woven fabric to obtain the non-woven fabric composite material with the formaldehyde adsorption function, and marking as W₃。

The prepared non-woven fabric composite material with the formaldehyde adsorption function is subjected to characterization of air permeability, resistance and stiffness, and formaldehyde adsorption performance test.

(one) test W separately₁、W₂、W₃Parameters of air permeability, resistance, stiffness and thickness, in particularThe data are shown in Table 1.

Non-woven fabric composite material W with formaldehyde adsorption function shown in Table 1₁、W₂、W₃The parameters of the air permeability, the resistance, the stiffness and the thickness of the non-woven fabric composite material with the formaldehyde adsorption function can be known, the air permeability of the non-woven fabric composite material with the formaldehyde adsorption function is 2324-2904 mm/s, the resistance is 13-20 pa, the extending length of the stiffness is 16.00-18.00 cm, and the thickness is mainly distributed at 0.1-10 mm. The spraying material can cause the air permeability of the material to be reduced, the air permeability of the material can be reduced and the resistance can be increased due to different proportions of the materials; the stiffness of the sprayed material is well improved, and the stiffness of the material is improved along with the increase of the thickness of the material.

(II) non-woven fabric composite material W with formaldehyde adsorption function shown in figure 2₂According to a scanning electron microscope image, a large amount of substances exist on the surface of the non-woven fabric, the substances are closely linked with the non-woven fabric, and the materials play an important role in formaldehyde adsorption, so that the materials are beneficial to effectively removing VOCs and reducing pollutants in the environment.

(III) through tests, the non-woven fabric composite material W with the formaldehyde adsorption function₁、W₂、W₃Carrying out CADR on formaldehyde at 187, 134 and 156 m/h respectively; non-woven fabric composite material W with formaldehyde adsorption function₁、W₂、W₃The removal rate of formaldehyde in half hour is 97.2%, 94.2% and 96.6%, and the specific parameters are shown in Table 2.

TABLE 2W₁、W₂、W₃Formaldehyde removal rate meter

Samples	Initial concentration (ppm)	End concentration (ppm)	Removal Rate (%)
				W1	1.653	0.046	97.2%
W2	1.632	0.095	94.2%
				W3	1.644	0.056	96.6%

The air-purifying high-purity activated carbon in the following examples was evaluated by the following method:

(1) removal rate of formaldehyde: pouring out a required test sample, uniformly stirring, folding and sealing a non-woven fabric composite material with the length of 6m and the width of 32cm and having the formaldehyde adsorption function, putting the non-woven fabric composite material into a prepared injection molding frame to ensure good tightness, then putting the non-woven fabric composite material into an air purifier, covering the whole air purifier with a plastic bag, finally injecting a certain amount of detection solution into a box body of 3m3, heating for 10 minutes to completely volatilize the detection solution (simultaneously starting a stirring fan), closing a heater, sampling and measuring the initial concentration of the detection solution, then removing the plastic bag on the purifier, starting the purification fan and timing, and recording the purification condition after 30 minutes. The experimental temperature reaches 25 +/-2 ℃;

(2) CADR value of formaldehyde: the method comprises the steps of folding and sealing a non-woven fabric composite material with the formaldehyde adsorption function, which is 6m long and 32cm wide, of a sample to be tested, putting the non-woven fabric composite material into a prepared injection molding frame to ensure good tightness, putting the non-woven fabric composite material into an air purifier, covering the whole air purifier with a plastic bag, finally injecting a certain amount of detection solution into a 30m3 box, heating for 10 minutes to completely volatilize the detection solution (simultaneously starting a stirring fan), then closing a heater, sampling and measuring the initial concentration of the detection solution by a formaldehyde analyzer, removing the plastic bag on the purifier, starting the purification fan and starting timing until the concentration of formaldehyde in an experimental cabin is reduced to 0.080 ppm;

(3) the test instruments comprise a 3m3 organic glass box, a 30m3 organic glass box, a fan mixer, a hygrothermograph, a Samsung KJ350G-K3026WP air purifier, and a 4160 formaldehyde analyzer of Interscan company of America;

(4) analyzing the surface structure property of the material by using a Nanosem 430 type field emission scanning electron microscope;

(5) determining air permeability and resistance parameters of the filter material by using a Sujing SJPM-F006 filter material test bench;

(6) material stiffness was measured using a YG022D fully automated fabric stiffness meter;

(7) material thickness was measured using a YGB141D digital fabric thickness gauge.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.