A method for preparing an electrically controlled negative oxygen ion release cotton fabric

Abstract

The invention discloses a preparation method of electrically controlled negative oxygen ion releasing cotton fabric, which comprises the following steps: taking a conventional cotton fabric, soaking it in an ethanol solution and completely soaking it, then taking out the cotton fabric, washing it with water, drying it, and then soaking it in a hydrochloric acid solution of aniline and completely soaking it, then adding a hydrochloric acid solution of ammonium persulfate and reacting it fully, taking out the cotton fabric, washing it with water, drying it, and then soaking it in a composite finishing liquid, taking it out and drying it. The conductive cotton fabric and the composite finishing liquid are formed, and after a post-finishing method, an electrically controlled negative oxygen ion releasing cotton fabric is obtained, the functional finishing of polyaniline makes the cotton fabric conductive, and the introduction of rare earth oxide / graphene makes the cotton fabric have the function of electrically releasing negative oxygen ions, which lays a foundation for the development of the functional cotton fabric material for electrotherapy massage products.

Description

Technical Field

[0001] The invention relates to functional fabrics, in particular to a method for preparing cotton fabrics capable of releasing negative oxygen ions. Background Art

[0002] With the ever-accelerating pace of life and the widespread use of computers in all walks of life, many jobs require workers to work in front of computers for long periods of time, resulting in increasingly serious lumbar muscle strain at a younger age. In response to this phenomenon, many household products with massage functions have appeared on the market, such as massage chairs, but existing massage chairs often only have simple massage functions, and massage chairs are often large in size, which is not conducive to daily office work and carrying. On the other hand, negative oxygen ions are known as vitamins in the air. They can degrade and neutralize harmful gases in the air. They also have the advantages of regulating human physiological functions, eliminating fatigue, improving sleep, and preventing respiratory diseases. Therefore, the development of negative ion generators has gradually entered the public's perspective.

[0003] Based on the above situation, it is necessary to combine the electric-controlled negative ion generator with massage function to form health care household products with both physical therapy and massage. The electric-controlled fiber that releases negative ions is an important component. At present, there are also fabrics related to negative ion release, such as a negative ion health care functional fiber and its preparation method (country: China, publication date: 20200616, publication number: CN111286806A), but it is mainly the development of negative ion release fiber, and does not involve electric control and massage functions. Summary of the invention

[0004] Purpose of the invention: The purpose of the present invention is to provide a method for preparing cotton fabric that releases negative oxygen ions, which can realize the electrically controlled release of negative oxygen ions.

[0005] Technical solution: A method for preparing cotton fabric that electrically controls the release of negative oxygen ions, comprising the following steps:

[0006] Step S10: soaking a conventional cotton fabric in an ethanol solution and completely absorbing the ethanol solution, then taking out the cotton fabric and rinsing it with deionized water for multiple times, and drying it for later use;

[0007] Step S20: adding ammonium persulfate into the hydrochloric acid solution and fully dissolving it to obtain an ammonium persulfate hydrochloric acid solution;

[0008] Step S30: adding aniline to the hydrochloric acid solution to obtain the aniline hydrochloric acid solution, and then soaking the cotton fabric obtained in step S10 in the hydrochloric acid solution and completely wet absorbing it;

[0009] Step S40: adding the hydrochloric acid solution of ammonium persulfate to the material system of step S30, taking out the cotton fabric after sufficient reaction, washing it with water, drying it and setting it aside;

[0010] Step S50: dispersing Eu2O3 into graphene oxide dispersion, stirring to obtain a suspension, and then adding waterborne polyurethane to obtain a composite finishing liquid;

[0011] Step S60: The cotton fabric obtained in step S40 is immersed in the composite finishing liquid by an immersion method, and then the cotton fabric is taken out and dried to obtain the electrically controlled negative oxygen ion releasing cotton fabric.

[0012] Furthermore, in step S20, 1 mol / L hydrochloric acid solution is prepared with ammonium persulfate, and the obtained ammonium persulfate hydrochloric acid solution has a concentration of 0.008-0.04 g / mL.

[0013] Furthermore, in step S30, 1 mol / L hydrochloric acid solution is prepared with aniline, and the obtained aniline hydrochloric acid solution has a concentration of 0.008-0.04 g / mL.

[0014] Further, in step S30, the cotton fabric is soaked at a bath ratio of 3:130.

[0015] Furthermore, in step S40, the hydrochloric acid solution of ammonium persulfate and the hydrochloric acid solution of aniline are mixed in a ratio of m(aniline):m(ammonium persulfate)=0.3-1.

[0016] Furthermore, in step S50, WO3 and Eu2O3 are dispersed together in the graphene oxide dispersion.

[0017] Furthermore, in step S50, the concentration of the graphene oxide dispersion is 10-20 g / L, and Eu2O3 and aqueous polyurethane are added with the graphene oxide dispersion as the solvent and the concentration is calculated. The concentration of Eu2O3 is 0.5-5 mg / mL, and the concentration of aqueous polyurethane is 20-25 g / L.

[0018] Furthermore, in step S50, the concentration of the graphene oxide dispersion is 10-20 g / L, WO3 is added at a concentration calculated by taking the graphene oxide dispersion as a solvent, and the concentration of WO3 is 0.005-0.04 g / mL.

[0019] Furthermore, in step S60, the cotton fabric obtained in step S40 is soaked in the composite finishing liquid at a bath ratio of 3:200.

[0020] Furthermore, in step S60, the drying is performed by pre-baking at 80-100°C for 3-5 minutes and then baking at 110-140°C for 3-5 minutes.

[0021] The principle of the present invention is: through the formed conductive cotton fabric and the composite finishing liquid, after the post-finishing method, the electrically controlled negative oxygen ion releasing cotton fabric is obtained;

[0022] (1) WO3 undergoes an oxidation-reduction reaction under an applied voltage condition. It is blue under a reduced condition and white after being oxidized. The color change before and after power is applied can be used as a safety reminder when the cotton fabric prepared by the present invention is used in electric control applications, which helps to ensure safe use of electricity.

[0023] (2) The hydrochloric acid solution of ammonium persulfate reacts with the material system of the hydrochloric acid solution of cotton fabric and aniline, so that the cotton fabric contains polyaniline, thereby forming an important conductive polymer, the monomer of which will polymerize after oxidation in an acidic aqueous solution and has stability. It can be finished on cotton fabric to form conductive cotton fabric;

[0024] (3) Rare earth oxide / graphene will ionize under external power conditions and produce a resonance effect, releasing negative oxygen ions. The possible bonding diagram of cotton fabric and graphene oxide composite during the impregnation method is shown in the attached figure. Figure 1 shown.

[0025] Beneficial effects: The advantages of the present invention are: in the prepared electrically controlled negative oxygen ion releasing cotton fabric, the introduction of WO3 gives the cotton fabric excellent electrochromic properties for indicating the power-on state, the functional finishing of polyaniline makes the cotton fabric conductive, and the introduction of rare earth oxide / graphene makes the cotton fabric have the function of electrically releasing negative oxygen ions, which lays a foundation for the development of the functional cotton fabric material for electrotherapy massage products. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the possible bonding of cotton fabric and graphene oxide composite using the impregnation method. DETAILED DESCRIPTION

[0027] The present invention will be further illustrated below in conjunction with specific embodiments.

[0028] Example 1

[0029] A method for preparing an electrically controlled negative oxygen ion releasing cotton fabric comprises the following steps:

[0030] Step S10: Take a regular cotton fabric of 5×5 cm in size, put it into 50 mL of ethanol solution and soak it for 12 hours, then take out the cotton fabric and rinse it with deionized water for several times, dry it and set it aside.

[0031] Step S20: adding 0.3 g of ammonium persulfate to a 13 mL hydrochloric acid solution with a concentration of 1 mol / L, and performing ultrasonication to fully dissolve the ammonium persulfate. The ultrasonication time is preferably 1 to 60 min, to obtain an ammonium persulfate hydrochloric acid solution with a concentration of 0.02 g / mL;

[0032] Step S30: adding 0.2 g of aniline to a hydrochloric acid solution with a volume of 13 mL and a concentration of 1 mol / L to obtain a hydrochloric acid solution of aniline with a concentration of 0.015 g / mL; then soaking the cotton fabric obtained in step S10 at a bath ratio of 3:130 and completely wet absorbing it.

[0033] Step S40: slowly drop the hydrochloric acid solution of ammonium persulfate obtained in step S20 into the material system of step S30, at which time m(aniline):m(ammonium persulfate)=0.99. After reacting for 12 hours, take out the cotton fabric, wash it with distilled water, and dry it for later use.

[0034] Step S50: Disperse 0.58 g of WO3 and 0.05 g of Eu2O3 into a graphene oxide dispersion with a volume of 20 mL and a concentration of 15 g / L, obtain a suspension under high-speed stirring, and then add 0.4 g of aqueous polyurethane to obtain a composite finishing liquid; that is, the concentration of WO3 is 0.029 g / mL, the concentration of Eu2O3 is 2.5 mg / mL, and the concentration of aqueous polyurethane is 20 g / L.

[0035] Step S60: The cotton fabric obtained in step S40 is immersed in the composite finishing liquid at a bath ratio of 3:200 by an immersion method, and then the cotton fabric is taken out, pre-baked at 80-100°C for 3-5 minutes, and then baked at 110-140°C for 3-5 minutes to obtain an electrically controlled cotton fabric that releases negative oxygen ions.

[0036] Example 2

[0037] A method for preparing an electrically controlled negative oxygen ion releasing cotton fabric comprises the following steps:

[0038] Step S10: Take a regular cotton fabric of 5×5 cm in size, put it into 50 mL of ethanol solution and soak it for 12 hours, then take out the cotton fabric and rinse it with deionized water for several times, dry it and set it aside.

[0039] Step S20: adding 0.3 g of ammonium persulfate to a 13 mL hydrochloric acid solution with a concentration of 1 mol / L, and performing ultrasonication to fully dissolve the ammonium persulfate. The ultrasonication time is preferably 1 to 60 min, to obtain an ammonium persulfate hydrochloric acid solution with a concentration of 0.02 g / mL;

[0040] Step S30: adding 0.25 g of aniline to a hydrochloric acid solution with a volume of 13 mL and a concentration of 1 mol / L to obtain a hydrochloric acid solution of aniline with a concentration of 0.02 g / mL; then soaking the cotton fabric obtained in step S10 in the solution with a bath ratio of 3:130 and completely wet absorbing it.

[0041] Step S40: slowly drop the hydrochloric acid solution of ammonium persulfate obtained in step S20 into the material system of step S30, at which time m(aniline):m(ammonium persulfate)=1.00. After reacting for 12 hours, take out the cotton fabric, wash it with distilled water, and dry it for later use.

[0042] Step S50: Disperse 0.7 g of WO3 and 0.07 g of Eu2O3 into a graphene oxide dispersion with a volume of 20 mL and a concentration of 15 g / L, obtain a suspension under high-speed stirring, and then add 0.4 g of aqueous polyurethane to obtain a composite finishing liquid; that is, the concentration of WO3 is 0.035 g / mL, the concentration of Eu2O3 is 3.5 mg / mL, and the concentration of aqueous polyurethane is 20 g / L.

[0043] Step S60: The cotton fabric obtained in step S40 is immersed in the composite finishing liquid at a bath ratio of 3:200 by an immersion method, and then the cotton fabric is taken out, pre-baked at 80-100°C for 3-5 minutes, and then baked at 110-140°C for 3-5 minutes to obtain an electrically controlled cotton fabric that releases negative oxygen ions.

[0044] The electrically controlled cotton fabrics releasing negative oxygen ions prepared in Examples 1 and 2 were tested on an electrochemical workstation, respectively. A distance of 1 cm parallel to the warp and weft directions and with a stable structure was selected on the tested cotton fabrics. The results of the test square resistance are listed in Table 1, indicating that the cotton fabric prepared in the present invention has good electrical conductivity, and thus the negative oxygen ions can be released by electrically exciting the cotton fabrics.

[0045] Table 1 Warp and weft square resistance of cotton fabrics

[0046] sample Warp square resistance Weft square resistance Example 1 161.21Ω 236.73Ω Example 2 160.56Ω 225.24Ω

[0047] The electrically controlled negative oxygen ion releasing cotton fabrics prepared in Examples 1 and 2 were tested for their negative oxygen ion health function using an air negative ion detector, and the results of the negative oxygen ion concentration tests are listed in Table 2.

[0048] Table 2 Negative oxygen ion concentration of cotton fabric

[0049] sample Negative oxygen ion concentration After washing 10 times, the concentration of negative oxygen ions Example 1 <![CDATA[22,500 per cm 3 > <![CDATA[21,200 pieces / cm 3 > Example 2 <![CDATA[22,800 pieces / cm 3 > <![CDATA[21,700 pieces / cm 3 >

[0050] The electrically controlled negative oxygen ion releasing cotton fabric prepared by the present invention can be used to develop electrotherapy massage products, such as developing an electrotherapy massage cushion, wherein the cotton fabric is used as the fabric of the cushion, a power controller is provided in the cushion, and is electrically connected with the massage vibration sheet and the cotton fabric, and the fabric can keep releasing negative oxygen ions when powered on.

Claims

1. A method for preparing a cotton fabric that electrically controls the release of negative oxygen ions, characterized in that The following steps are involved: Step S10: soak the cotton fabric in an ethanol solution and completely absorb it, then take out the cotton fabric, rinse it with deionized water for multiple times, and dry it for later use; Step S20: adding ammonium persulfate into the hydrochloric acid solution and fully dissolving it to obtain an ammonium persulfate hydrochloric acid solution; Step S30: adding aniline to the hydrochloric acid solution to obtain the aniline hydrochloric acid solution, and then soaking the cotton fabric obtained in step S10 in the hydrochloric acid solution and completely wet absorbing it; Step S40: adding the hydrochloric acid solution of ammonium persulfate to the material system of step S30, taking out the cotton fabric after sufficient reaction, washing it with water, drying it and setting it aside; Step S50: dispersing WO3 and Eu2O3 together in a graphene oxide dispersion, stirring to obtain a suspension, and then adding waterborne polyurethane to obtain a composite finishing liquid; Step S60: The cotton fabric obtained in step S40 is immersed in the composite finishing liquid by an immersion method, and then the cotton fabric is taken out and dried to obtain the electrically controlled negative oxygen ion releasing cotton fabric.

2. The method for preparing a cotton fabric that electrically controls the release of negative oxygen ions according to claim 1, characterized in that: In step S20, 1 mol / L hydrochloric acid solution is prepared with ammonium persulfate, and the obtained ammonium persulfate hydrochloric acid solution has a concentration of 0.008-0.04 g / mL.

3. The method for preparing a cotton fabric for electrically controlling the release of negative oxygen ions according to claim 1, characterized in that: In step S30, 1 mol / L hydrochloric acid solution is prepared with aniline to obtain an aniline hydrochloric acid solution with a concentration of 0.008-0.04 g / mL.

4. The method for preparing a cotton fabric that electrically controls the release of negative oxygen ions according to claim 1, characterized in that: In step S30, the cotton fabric is soaked at a bath ratio of 3:

130.

5. The method for preparing a cotton fabric for electrically controlling the release of negative oxygen ions according to claim 1, characterized in that: In step S40, the hydrochloric acid solution of ammonium persulfate and the hydrochloric acid solution of aniline are mixed in a ratio of m(aniline):m(ammonium persulfate)=0.3-1.

6. The method for preparing a cotton fabric that electrically controls the release of negative oxygen ions according to claim 1, characterized in that: In step S50, the concentration of the graphene oxide dispersion is 10-20 g / L, and Eu2O3 and aqueous polyurethane are added with the graphene oxide dispersion as the solvent and the concentration is calculated. The concentration of Eu2O3 is 0.5-5 mg / mL, and the concentration of aqueous polyurethane is 20-25 g / L.

7. The method for preparing a cotton fabric that electrically controls the release of negative oxygen ions according to claim 1, characterized in that: In step S50, the concentration of the graphene oxide dispersion is 10-20 g / L, WO3 is added with the graphene oxide dispersion as a solvent and the concentration of WO3 is 0.005-0.04 g / mL.

8. The method for preparing a cotton fabric that electrically controls the release of negative oxygen ions according to claim 1, characterized in that: In step S60, the cotton fabric obtained in step S40 is soaked in the composite finishing liquid at a bath ratio of 3:

200.

9. The method for preparing a cotton fabric that electrically controls the release of negative oxygen ions according to claim 1, characterized in that: In step S60, the drying is performed by pre-baking at 80-100°C for 3-5 minutes and then baking at 110-140°C for 3-5 minutes.

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