Palladium complex exciter, nanocomposite, finishing agent, textile fabric and application thereof

Abstract

The application discloses a kind of palladium complex excitation agent, by palladium compound and containing double amine group or hydroxyl compound in nonpolar solvent Complexation reaction is made.Therein, the palladium compound is soluble palladium salt, preferably palladium chloride, palladium nitrate or palladium sulfate;The compound containing double amine group or hydroxyl group includes at least one of catechol or o-phenylenediamine;The nonpolar solvent includes at least one of pyridine or n-hexane;The mass ratio of palladium element in the palladium compound and the compound containing double amine group or hydroxyl group is 1:5-5:1;The reaction temperature of the complexation reaction is 50~110 DEG C, pressure is 0.1~0.3MPa, reaction time is 2~5h.The palladium complex excitation agent prepared by the method of the application can be compounded with negative ion emission functional powder, significantly improve the excitation efficiency of composite material, and can reduce harmful radiation.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of negative ion emitting materials, and particularly relates to a palladium complex excitation agent, further relates to a negative ion emitting nanocomposite and a preparation method thereof, and still further relates to a finishing agent for textile fabric, a textile fabric and application thereof. BACKGROUND

[0002] Negative ions refer to negatively charged oxygen ions, colorless and odorless. The molecular formula of air negative ions is O 2- (H2O)n, or OH - (H2O)n, or CO 4- (H2O)n. Negative ions not only promote human body synthesis and storage of vitamins, strengthen and activate human physiological activities, and therefore it is also called "air vitamin". Negative ions are an important indicator for evaluating air quality. In parks and scenic spots, negative ion concentration display boards are often seen, which evaluate air quality by measuring the negative ion content. The World Health Organization believes that when the negative ion content reaches 1000 per cubic centimeter or more, the air quality is excellent, and long-term living in such an air environment can improve the immune system and improve human immunity. When the negative ion content reaches 3000 per cubic centimeter or more, it can have auxiliary medical effects and has a positive effect on the treatment of some diseases and the rehabilitation of the body. Studies have also shown that negative ions have a significant effect on air pollution control. For example, they can combine with harmful gases such as aldehydes, increase the oxidation efficiency by increasing the local concentration, and fundamentally remove the concentration of harmful substances such as aldehydes. Researchers have also studied the settlement of dust by negative ions and found that increasing the concentration of negative ions can effectively settle small particles in the air, thereby purifying the air. The development technology of negative ion functional textile products originated from Japan and was introduced into China around 2000. A large number of scholars and experts have studied the mechanism of negative ion generation and action, and some enterprises have also achieved the transformation of negative ion functional products, which have good economic benefits.

[0003] The negative ion functional products of the prior art are applied in the fields of textile industry, plastic products, paper products, etc. The number of negative ions released by these products is insufficient and needs to be improved. Therefore, the negative ion emitting functional material needs to be improved. SUMMARY

[0004] The present application is based on the discovery and understanding of the inventors of the following facts and problems: the current preparation technology of negative ion emitting materials has the disadvantages of complex operation, uncontrollable process, use of harmful metals, etc., which is not conducive to industrial application, and the number of negative ions released is still insufficient, which cannot meet the needs of the current quality of life.

[0005] The present application aims to at least solve one of the problems in the related art. To this end, the embodiments of the present application propose a palladium complex exciter, which is prepared by complexing a palladium compound with a compound containing a bis-amine group or a hydroxyl group, and can be compounded with and excited by a negative ion emitting functional material powder, thereby improving the negative ion emission amount of the negative ion emitting functional material powder.

[0006] In addition, the palladium complex exciter can also reduce the harmful radiation amount of the negative ion emitting functional material to a certain extent.

[0007] The palladium complex exciter of the embodiments of the present application is prepared by complexing a palladium compound with a compound containing a bis-amine group or a hydroxyl group in a non-polar solvent.

[0008] The palladium complex exciter of the embodiments of the present application has the following advantages and technical effects: 1. In the embodiments of the present application, the palladium complex exciter is prepared by complexing a palladium compound with a compound containing a bis-amine group or a hydroxyl group. After the complexation of the palladium compound, the binding force with the negative ion emitting functional powder is enhanced, and after the compounding with the negative ion emitting functional powder, the negative ion emission amount of the negative ion emitting functional material powder can be improved; 2. The preparation process of the palladium complex exciter of the embodiments of the present application is simple, easy to be applied in industry, and has a broad prospect.

[0009] In some embodiments, the palladium compound is a soluble palladium salt, preferably at least one of palladium chloride, palladium nitrate or palladium sulfate; and / or the compound containing a bis-amine group or a hydroxyl group includes at least one of catechol or o-phenylenediamine; and / or the non-polar solvent includes at least one of pyridine or n-hexane; the mass ratio of the palladium element in the palladium compound to the compound containing a bis-amine group or a hydroxyl group is 1:5-5:1; and / or the reaction temperature of the complexing reaction is 50-110℃, the pressure is 0.1-0.3MPa, and the reaction time is 2-5h.

[0010] The embodiments of the present application also provide a negative ion emitting nano-composite material including the palladium complex exciter of the embodiments of the present application and a negative ion emitting functional material powder.

[0011] Preferably, the negative ion emitting functional material includes silica and hexacyclic stone at a mass ratio of 1:4-4:1.

[0012] Preferably, the mass ratio of the palladium complex exciter to the negative ion emitting functional material is 1:50-500.

[0013] The negative ion emission nanocomposite of the embodiment of the present application adds the palladium complex exciter of the embodiment of the present application, the palladium complex exciter has excellent binding force with the negative ion emission functional material, can significantly improve the excitation efficiency of the negative ion emission nanocomposite, and can also reduce harmful radiation of the negative ion emission nanocomposite.

[0014] The embodiment of the present application further provides a preparation method of the negative ion emission nanocomposite, comprising mixing and dispersing the palladium complex exciter, the negative ion emission functional material powder and the solvent in a designed ratio, and heating and reacting, preferably, the reaction temperature is 80-140 DEG C, and the reaction time is 3-6 h, to obtain the negative ion emission nanocomposite. The preparation method of the embodiment of the present application heats and reacts the palladium complex exciter and the negative ion emission functional material powder to obtain the negative ion emission nanocomposite, significantly improves the excitation efficiency of the composite material, reduces harmful radiation, and is simple in preparation method and easy to be applied in large-scale industrialization.

[0015] The embodiment of the present application further provides a finishing agent for textile fabric, comprising the negative ion emission nanocomposite of the embodiment of the present application. The finishing agent of the embodiment of the present application can be applied to the finishing treatment of the textile fabric, and gives the textile fabric the negative ion emission function.

[0016] In some embodiments, the negative ion emission nanocomposite is added into a polar solvent for wet ball milling treatment;

[0017] Preferably, the polar solvent comprises at least one of water, ethanol, ethylene glycol or glycerol;

[0018] Preferably, polyvinylpyrrolidone is added in the wet ball milling, and further preferably, the addition amount of the polyvinylpyrrolidone is 0.2-2 wt% of the negative ion emission nanocomposite;

[0019] Preferably, the mass concentration of the negative ion emission nanocomposite is 30-50%.

[0020] In some embodiments, the finishing agent further comprises a film forming agent, preferably, the film forming agent comprises at least one of polyurethane, acrylic copolymer or gelatin; preferably, the mass ratio of the film forming agent to the negative ion emission nanocomposite is (1-10):1; and / or the finishing agent further comprises tannic acid, preferably, the addition amount of the tannic acid is 5-15% of the mass of the negative ion emission nanocomposite.

[0021] The application further provides a textile fabric, and a preparation method of the textile fabric comprises the following steps: treating a textile fabric to be processed by using the finishing agent of the application to perform finishing treatment through padding, so as to obtain the textile fabric. The preparation method of the application can impart the textile fabric with the negative ion emission function after treating the textile fabric by using the finishing agent, so that the textile fabric can be applied to more fields.

[0022] In some embodiments, the finishing agent is diluted 2-10 times for padding treatment.

[0023] The application further provides an application of the textile fabric in automobile interior decoration. The textile fabric of the application can be applied to automobile interior decoration, and the negative ions released by the textile fabric can effectively improve the air environment in the automobile and improve the comfort of the automobile. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 Figure 5 is a SEM image of the finishing agent containing a film forming agent after drying treatment according to the application. DETAILED DESCRIPTION

[0025] The embodiments of the application are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the application, and cannot be understood as a limitation of the application.

[0026] The palladium complex excitation agent of the application is prepared by complexing reaction of a palladium compound and a compound containing a diamine group or a hydroxyl group in a non-polar solvent.

[0027] The palladium complex excitation agent of the application is prepared by complexing reaction of a palladium compound and a compound containing a diamine group or a hydroxyl group. After complexing, the palladium compound enhances the binding force with the negative ion emission functional powder, and after compounding with the negative ion emission functional powder, the excitation efficiency of the composite material can be significantly improved, and the harmful radiation of the composite material is reduced. The preparation process of the palladium complex excitation agent of the application is simple, easy to industrialize, and has broad prospects.

[0028] In some embodiments, the palladium compound is a soluble palladium salt, preferably at least one of palladium chloride, palladium nitrate or palladium sulfate; the compound containing a di-amine group or a hydroxyl group includes at least one of catechol or o-phenylenediamine; the non-polar solvent includes at least one of pyridine or n-hexane; preferably, the mass ratio of palladium element in the palladium compound to the compound containing a di-amine group or a hydroxyl group is 1:5-5:1, further preferably 1:2-2:1, and more preferably 1:1. Preferably, the reaction temperature of the complexing reaction is 50-110°C, the pressure is 0.1-0.3 MPa, and the reaction time is 2-5 h. In the method of the embodiments of the present application, the mass ratio of palladium element to the compound containing a di-amine group or a hydroxyl group is optimized, further improving the combination ability of the palladium complex excitation agent and the negative ion emitting functional powder, and improving the negative ion emission amount after the palladium complex excitation agent is compounded with the negative ion emitting functional powder.

[0029] The embodiments of the present application also provide a negative ion emitting nano-composite material including the palladium complex excitation agent and the negative ion emitting functional material powder. The negative ion emitting nano-composite material of the embodiments of the present application adds the palladium complex excitation agent of the embodiments of the present application, the palladium complex excitation agent has excellent combination with the negative ion emitting functional material, can significantly improve the excitation efficiency of the composite material, and reduces harmful radiation.

[0030] In some embodiments, preferably, the negative ion emitting functional material includes silica and hexacyclic stone with a mass ratio of 1:4-4:1, further preferably 2:1-1:2, and more preferably 1:2. In the embodiments of the present application, the mixture of silica and hexacyclic stone is used as the negative ion emitting functional material, the silica has excellent adsorption and dispersion performance, so that the negative ion emitting nano-composite material can not only release negative ions, but also remove odor and formaldehyde. The ratio of silica and hexacyclic stone is optimized in the embodiments of the present application, which can further improve the negative ion emission amount of the composite material.

[0031] In some embodiments, the mass ratio of the palladium complex excitation agent and the negative ion emitting functional material is 1:50-500, preferably 1:100-400, and more preferably 1:200. In the embodiments of the present application, the mass ratio of the palladium complex excitation agent and the negative ion emitting functional material is optimized, further improving the negative ion emission amount of the composite material.

[0032] The embodiment of the present application also provides a preparation method of the negative ion emission nanocomposite, which comprises: mixing and dispersing the palladium complex excitation agent, the negative ion emission functional material powder and the solvent, and heating and reacting, preferably, the reaction temperature is 80-140 DEG C, and the reaction time is 3-6 hours, so as to obtain the negative ion emission nanocomposite. The preparation method of the embodiment of the present application is to heat and react the palladium complex excitation agent and the negative ion emission functional material powder to obtain the negative ion emission nanocomposite, which significantly improves the excitation efficiency of the composite material, reduces harmful radiation, and is simple and easy to be applied in large-scale industrialization.

[0033] The embodiment of the present application also provides a finishing agent for textile fabric, which comprises the negative ion emission nanocomposite. The finishing agent of the embodiment of the present application can be applied in the finishing treatment of the textile fabric, and can endow the textile fabric with the negative ion emission function.

[0034] In some embodiments, the negative ion emission nanocomposite is added into a polar solvent for wet ball milling treatment, preferably, the polar solvent comprises at least one of water, ethanol, ethylene glycol or glycerol. In the embodiment of the present application, the negative ion emission nanocomposite is further subjected to wet ball milling, which can further improve the dispersibility of the negative ion emission nanocomposite, and can improve the film-forming property of the composite material on the textile fabric, so as to improve the finishing effect of the finishing agent on the textile fabric, and improve the negative ion emission amount of the textile fabric.

[0035] In some embodiments, polyvinylpyrrolidone is added in the wet ball milling, preferably, the addition amount of the polyvinylpyrrolidone is 0.2-2 wt% of the negative ion emission nanocomposite. In the embodiment of the present application, the polyvinylpyrrolidone is added in the wet ball milling process of the negative ion emission nanocomposite, so as to further modify the surface of the negative ion emission nanocomposite, which not only improves the dispersibility of the negative ion emission nanocomposite, but also improves the adhesion between the negative ion emission nanocomposite and the surface of the textile fabric, so as to improve the viscosity of the finishing agent on the surface of the textile fabric, improve the film-forming property, and improve the negative ion emission amount of the textile fabric.

[0036] In some embodiments, the negative ion emission nanocomposite can be subjected to concentration treatment after the wet ball milling by evaporating the solvent, preferably, the mass concentration of the negative ion emission nanocomposite is 30-50%. In the method of the embodiment of the present application, the concentration of the negative ion emission nanocomposite is optimized, so that the prepared finishing agent can be directly used in the finishing process of the textile fabric.

[0037] In some embodiments, the finishing agent further comprises a film forming agent, preferably, the film forming agent comprises at least one of polyurethane, acrylic copolymer or gelatin; and / or, the mass ratio of the film forming agent to the anion emitting nanocomposite is (1-10):1, preferably (2-10):1, further preferably (4-10):1, and more preferably (6-8):1. The film forming agent is also added in the embodiments of the present application, and the addition amount of the film forming agent is preferably selected, so as to further improve the film forming performance of the finishing agent on the textile fabric, and improve the anion emission of the textile fabric. If the addition amount of the film forming agent is too small, the film forming effect is not obvious, but if the addition amount of the film forming agent is too large, the film forming effect is too good, the anions are completely covered, the contact with the water vapor in the air is not sufficient, and thus the release amount of the anions is reduced.

[0038] In some embodiments, the finishing agent further comprises tannic acid, preferably, the addition amount of the tannic acid is 5-15% of the mass of the anion emitting nanocomposite. The tannic acid is also added in the method of the embodiments of the present application, so as to enhance the softness of the textile fabric.

[0039] The embodiments of the present application also provide a textile fabric, and a preparation method of the textile fabric comprises: treating a textile fabric to be processed by using the finishing agent of the embodiments of the present application through padding treatment, preferably using a two-dip-two-pad process, so as to obtain the textile fabric. After the textile fabric is treated by using the finishing agent in the preparation method of the embodiments of the present application, the textile fabric is endowed with an anion emission function, so that the textile fabric can be applied to more fields.

[0040] In some embodiments, the finishing agent can be directly used in the padding process, or the finishing agent can be diluted by 2-10 times, preferably 2-8 times, and more preferably 2-6 times, for padding treatment. In the embodiments of the present application, the finishing agent is diluted and the dilution multiple is preferably selected, so as to further optimize the film forming performance and dispersion performance of the finishing agent, and improve the anion emission of the textile fabric after the finishing treatment. If the dilution multiple is too high, the film forming performance is not good enough, and if the dilution multiple is too low, the powder will be aggregated, so as to reduce the anion release of the textile fabric.

[0041] The embodiments of the present application also provide an application of the textile fabric in automobile interior decoration. The textile fabric of the embodiments of the present application can be applied to the automobile interior decoration, the anions released by the textile fabric can effectively improve the air environment in the automobile, and the comfort of the automobile is improved.

[0042] The present application will be described in detail below with reference to the embodiments and the accompanying drawings.

[0043] Embodiment 1

[0044] I. Preparation of palladium complex excitation agent

[0045] PdCl2 is dissolved in n-hexane, and then centrifuged and purified. The purified PdCl2 is mixed with o-phenylenediamine in pyridine, and the mass ratio of Pd to o-phenylenediamine is 1:5. The mixture is reacted at 0.2 MPa and 100°C for 2 hours to obtain a precipitate. The precipitate is washed with acetone and dried in vacuum to obtain the product, a Pd complex exciter.

[0046] II. Preparation of anion-emitting nanocomposite

[0047] A mixture of silica and hexacyclic stone with a mass ratio of 4:1 is mechanically pulverized to below 1 μm to obtain an anion-emitting functional material powder. The Pd complex exciter is mixed with the silica / hexacyclic stone powder at a mass ratio of 1:500, with water as the solvent, and ultrasonic dispersion is performed for 30 minutes. Then, the mixture is reacted at 120°C under nitrogen protection for 4 hours to obtain an anion-emitting nanocomposite.

[0048] III. Preparation of a finishing agent

[0049] The anion-emitting nanocomposite is subjected to wet ball milling, with ethanol as the liquid ball milling medium, and polyvinylpyrrolidone with a molecular weight of 10,000 is added as a surface modifier, with the amount of the polyvinylpyrrolidone being 0.2% of the mass of the anion-emitting nanocomposite. After the ball milling treatment, the concentration of the obtained anion-emitting nanocomposite is 20 wt%, and the average particle size of the powder is 90 nm. Further concentration treatment is performed to volatilize the solvent, and an anion-emitting nanocomposite with a concentration of 40 wt% is obtained.

[0050] The concentrated anion-emitting nanocomposite is compounded with a polyurethane film-forming agent, and the mass ratio of the film-forming agent to the anion-emitting nanocomposite is 1:1, to obtain a finishing agent.

[0051] IV. Preparation of a textile fabric

[0052] The prepared finishing agent is diluted 10 times, and a polyester knitted fabric with a grammage of 200 g / m2is subjected to finishing by the method of padding and drying, to obtain a textile fabric. 2

[0053] The textile fabric prepared in this example is tested, and the anion emission amount is 1500 / cm3, and the radiation value is 0.002 ucV.

[0054] The SEM image of the finishing agent prepared in this example after drying treatment is shown in FIG. 1. Figure 1 After the film-forming agent is added to the finishing agent, the anion composite no longer exists in the form of particles, but is attached in the form of a thin film. This structure improves the adhesion of the finishing agent to the fabric and enhances the wear resistance, so that the anion emission function does not attenuate due to friction during use. ​

[0055] Example 2

[0056] The same as the method of Example 1, except that in step one, the mass ratio of palladium element to o-phenylenediamine is 1:2.

[0057] The textile fabric prepared in this example is tested, and the negative ion emission amount is 1700 per cubic centimeter, and the radiation value is 0.002 ucV.

[0058] Example 3

[0059] The same as the method of Example 1, except that in step one, the mass ratio of palladium element to o-phenylenediamine is 1:1.

[0060] The textile fabric prepared in this example is tested, and the negative ion emission amount is 2100 per cubic centimeter, and the radiation value is 0.002 ucV.

[0061] Example 4

[0062] The same as the method of Example 1, except that in step one, the mass ratio of palladium element to o-phenylenediamine is 2:1.

[0063] The textile fabric prepared in this example is tested, and the negative ion emission amount is 1800 per cubic centimeter, and the radiation value is 0.002 ucV.

[0064] Example 5

[0065] The same as the method of Example 1, except that in step one, the mass ratio of palladium element to o-phenylenediamine is 5:1.

[0066] The textile fabric prepared in this example is tested, and the negative ion emission amount is 1400 per cubic centimeter, and the radiation value is 0.002 ucV.

[0067] Example 6

[0068] The same as the method of Example 3, except that in step two, the mass ratio of silicon dioxide and hexacyclic stone is 2:1.

[0069] The textile fabric prepared in this example is tested, and the negative ion emission amount is 2400 per cubic centimeter, and the radiation value is 0.003 ucV.

[0070] Example 7

[0071] The same as the method of Example 3, except that in step two, the mass ratio of silicon dioxide and hexacyclic stone is 1:1.

[0072] The textile fabric prepared in this example is tested, and the negative ion emission amount is 2700 pcs / cm3, and the radiation value is 0.003 ucV.

[0073] Example 8

[0074] The method is the same as that of Example 3, except that in step two, the mass ratio of silica and hexacyclic stone is 1:2.

[0075] The textile fabric prepared in this example is tested, and the negative ion emission amount is 2900 pcs / cm3, and the radiation value is 0.004 ucV.

[0076] Example 9

[0077] The method is the same as that of Example 3, except that in step two, the mass ratio of silica and hexacyclic stone is 1:4.

[0078] The textile fabric prepared in this example is tested, and the negative ion emission amount is 2500 pcs / cm3, and the radiation value is 0.005 ucV.

[0079] Example 10

[0080] The method is the same as that of Example 8, except that in step two, the mass ratio of palladium complex excitation agent and silica / hexacyclic stone powder is 1:400.

[0081] The textile fabric prepared in this example is tested, and the negative ion emission amount is 3100 pcs / cm3, and the radiation value is 0.004 ucV.

[0082] Example 11

[0083] The method is the same as that of Example 8, except that in step two, the mass ratio of palladium complex excitation agent and silica / hexacyclic stone powder is 1:300.

[0084] The textile fabric prepared in this example is tested, and the negative ion emission amount is 3300 pcs / cm3, and the radiation value is 0.004 ucV.

[0085] Example 12

[0086] The method is the same as that of Example 8, except that in step two, the mass ratio of palladium complex excitation agent and silica / hexacyclic stone powder is 1:200.

[0087] The textile fabric prepared in this example is tested, and the negative ion emission amount is 3700 pcs / cm3, and the radiation value is 0.004 ucV.

[0088] Example 13

[0089] The same as the method of Example 8, except that in step two, the mass ratio of the palladium complex initiator to the silica / hexacyclic stone powder is 1:100.

[0090] The textile fabric prepared in this example is tested, and the negative ion emission amount is 3400 pcs / cm3, and the radiation value is 0.004 ucV.

[0091] Example 14

[0092] The same as the method of Example 8, except that in step two, the mass ratio of the palladium complex initiator to the silica / hexacyclic stone powder is 1:50.

[0093] The textile fabric prepared in this example is tested, and the negative ion emission amount is 2900 pcs / cm3, and the radiation value is 0.004 ucV.

[0094] Example 15

[0095] The same as the method of Example 12, except that in step three, the mass ratio of the film forming agent to the negative ion emission nano composite material is 2:1.

[0096] The textile fabric prepared in this example is tested, and the negative ion emission amount is 4900 pcs / cm3, and the radiation value is 0.004 ucV.

[0097] Example 16

[0098] The same as the method of Example 12, except that in step three, the mass ratio of the film forming agent to the negative ion emission nano composite material is 4:1.

[0099] The textile fabric prepared in this example is tested, and the negative ion emission amount is 6300 pcs / cm3, and the radiation value is 0.004 ucV.

[0100] Example 17

[0101] The same as the method of Example 12, except that in step three, the mass ratio of the film forming agent to the negative ion emission nano composite material is 6:1.

[0102] The textile fabric prepared in this example is tested, and the negative ion emission amount is 7900 pcs / cm3, and the radiation value is 0.004 ucV.

[0103] Example 18

[0104] The same as the method of Example 12, except that in step three, the mass ratio of the film forming agent to the negative ion emission nano composite material is 8:1.

[0105] The textile fabric prepared in this example is tested, and the negative ion emission amount is 7200 pcs / cm3, and the radiation value is 0.004 ucV.

[0106] Example 19

[0107] The method is the same as that of Example 12, except that in step three, the mass ratio of the film-forming agent to the negative ion emission nanocomposite is 10:1.

[0108] The textile fabric prepared in this example is tested, and the negative ion emission amount is 6400 pcs / cm3, and the radiation value is 0.004 ucV.

[0109] Example 20

[0110] The method is the same as that of Example 17, except that in step four, the prepared finishing agent is diluted by 8 times before being subjected to padding treatment.

[0111] The textile fabric prepared in this example is tested, and the negative ion emission amount is 9300 pcs / cm3, and the radiation value is 0.004 ucV.

[0112] Example 21

[0113] The method is the same as that of Example 17, except that in step four, the prepared finishing agent is diluted by 6 times before being subjected to padding treatment.

[0114] The textile fabric prepared in this example is tested, and the negative ion emission amount is 12300 pcs / cm3, and the radiation value is 0.004 ucV.

[0115] Example 22

[0116] The method is the same as that of Example 17, except that in step four, the prepared finishing agent is diluted by 4 times before being subjected to padding treatment.

[0117] The textile fabric prepared in this example is tested, and the negative ion emission amount is 12700 pcs / cm3, and the radiation value is 0.004 ucV.

[0118] Example 23

[0119] The method is the same as that of Example 17, except that in step four, the prepared finishing agent is diluted by 2 times before being subjected to padding treatment.

[0120] The textile fabric prepared in this example is tested, and the negative ion emission amount is 11600 pcs / cm3, and the radiation value is 0.004 ucV.

[0121] Example 24

[0122] The same as the method of Example 17, except that in step four, the prepared finishing agent is not diluted and is directly subjected to padding treatment.

[0123] The textile fabric prepared in this example is tested, and the negative ion emission amount is 9200 pieces per cubic centimeter, and the radiation value is 0.004 ucV.

[0124] Example 25

[0125] The same as the method of Example 22, except that in step three, polyvinylpyrrolidone is not added during wet ball milling.

[0126] The textile fabric prepared in this example is tested, and the negative ion emission amount is 10400 pieces per cubic centimeter, and the radiation value is 0.004 ucV.

[0127] Example 26

[0128] The same as the method of Example 22, except that in step three, the negative ion emission nano-composite is not subjected to wet ball milling, and the negative ion emission nano-composite is compounded with a film former after being prepared into a 40wt% solution with ethanol.

[0129] The textile fabric prepared in this example is tested, and the negative ion emission amount is 6400 pieces per cubic centimeter, and the radiation value is 0.004 ucV.

[0130] Comparative Example 1

[0131] The same as the method of Example 1, except that step one is cancelled, no palladium complex excitation agent is added in step two, and the negative ion emission nano-composite is a mixture of silicon dioxide and hexacyclic stone with a mass ratio of 4:1.

[0132] The textile fabric prepared in Comparative Example 1 is tested, and the negative ion emission amount is 600 pieces per cubic centimeter, and the radiation value is 0.0025 ucV.

[0133] Comparative Example 2

[0134] The same as the method of Example 1, except that step one is cancelled, and the palladium complex excitation agent is replaced with palladium chloride in step two.

[0135] The textile fabric prepared in Comparative Example 2 is tested, and the negative ion emission amount is 750 pieces per cubic centimeter, and the radiation value is 0.0023 ucV.

[0136] In this disclosure, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material, or characteristic is included in at least one embodiment or example of the present disclosure. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referred to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the terminology "comprising" is used in the disclosure as comprising but not limited to, that is, it is open-ended and does not exclude the presence of additional features, structures, materials, or characteristics.

[0137] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above-described embodiments are exemplary, and are not to be interpreted as limiting the present disclosure, and the ordinary skilled in the art can make changes, modifications, replacements, and variations to the above-described embodiments within the scope of the present disclosure.

Claims

1. A negative ion emitting nanocomposite material, characterized in that, The invention comprises a palladium complex activator and a negative ion emitting functional material powder. The palladium complex activator is prepared by complexing a palladium compound with o-phenylenediamine in a nonpolar solvent or pyridine. The palladium compound is at least one of palladium chloride, palladium nitrate, or palladium sulfate. The mass ratio of palladium to o-phenylenediamine in the palladium compound is 1:5-5:

1. The reaction temperature of the complexing reaction is 50-110 °C, and the pressure is 0.1-0.3 MPa.

2. The negative ion emitting nanocomposite material according to claim 1, characterized in that, The nonpolar solvent includes n-hexane.

3. The negative ion emitting nanocomposite material according to claim 1, characterized in that, The reaction time for the complexation reaction is 2-5 h.

4. The negative ion emitting nanocomposite material according to claim 1, characterized in that, The negative ion emitting functional material comprises silicon dioxide and hexagonal stone in a mass ratio of 1:4 to 4:

1.

5. The negative ion emitting nanocomposite material according to claim 1, characterized in that, The mass ratio of the palladium complex activator to the negative ion emitting functional material is 1:50-500.

6. A method for preparing a negative ion emitting nanocomposite material according to any one of claims 1-5, characterized in that, This includes mixing and dispersing a designed ratio of palladium complex activator, negative ion emission functional material powder, and solvent, followed by heating and reaction to obtain a negative ion emission nanocomposite material.

7. The method for preparing the negative ion emitting nanocomposite material according to claim 6, characterized in that, The reaction temperature is 80~140 ℃, and the reaction time is 3~6 h.

8. A finishing agent for textile fabrics, characterized in that, The negative ion emitting nanocomposite material includes any one of claims 1-5 or any one of claims 6-7.

9. The finishing agent according to claim 8, characterized in that, The negative ion emitting nanocomposite material was added to a polar solvent and subjected to wet ball milling.

10. The finishing agent according to claim 9, characterized in that, The polar solvent includes at least one of water, ethanol, ethylene glycol, or glycerol.

11. The finishing agent according to claim 9, characterized in that, Polyvinylpyrrolidone is added during the wet ball milling process.

12. The finishing agent according to claim 11, characterized in that, The amount of polyvinylpyrrolidone added is 0.2-2 wt% of the negative ion emission nanocomposite material.

13. The finishing agent according to claim 9, characterized in that, The mass concentration of the negative ion emitting nanocomposite material is 30-50%.

14. The finishing agent according to claim 8, characterized in that, The finishing agent also includes a film-forming agent.

15. The finishing agent according to claim 14, characterized in that, The film-forming agent includes at least one of polyurethane, acrylic copolymers, or gelatin.

16. The finishing agent according to claim 14, characterized in that, The mass ratio of the film-forming agent to the negative ion emission nanocomposite material is (1-10):

1.

17. The finishing agent according to claim 8, characterized in that, The finishing agent also includes tannic acid.

18. The finishing agent according to claim 17, characterized in that, The amount of tannic acid added is 5-15% of the mass of the negative ion emission nanocomposite material.

19. A textile fabric, characterized in that, The method for preparing the textile fabric includes applying the finishing agent as described in any one of claims 8-18 to the textile fabric to be treated by padding treatment to obtain the textile fabric.

20. The textile fabric according to claim 19, characterized in that, The finishing agent is diluted 2-10 times and then subjected to padding treatment.

21. The application of the textile fabric of claim 19 or 20 in automotive interiors.

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