Fluorescent textile and preparation method thereof
阅读说明：本技术 一种荧光纺织品及其制备方法 (Fluorescent textile and preparation method thereof ) 是由 洪岩 刘春玉 薛哲彬 刘涵 于 2020-12-21 设计创作，主要内容包括：本发明涉及一种荧光纺织物及其制备方法,荧光纺织品包括纺织品以及复合于纺织品上的亚铜配合物。本发明通过热压工艺将亚铜配合物复合在纺织品上,得到荧光纺织品。本发明提供的荧光纺织品对环境友好、发光效率高且稳定性好,能够实现纺织品的荧光印染。同时,本发明荧光纺织品的制备工艺简单、产率高且成本低,能够实现纺织品的荧光多样化设计以及大规模制备,具有很好的应用前景。(The invention relates to a fluorescent textile and a preparation method thereof. The cuprous complex is compounded on the textile through a hot pressing process to obtain the fluorescent textile. The fluorescent textile provided by the invention is environment-friendly, high in luminous efficiency and good in stability, and can realize fluorescent printing and dyeing of the textile. Meanwhile, the preparation process of the fluorescent textile is simple, high in yield and low in cost, can realize fluorescent diversified design and large-scale preparation of the textile, and has good application prospect.)
1. The cuprous complex is applied to fluorescent dyes of textiles.
2. Use according to claim 1, characterized in that: the cuprous complex is selected from Cu2I2(3-picoline)2(PPh3)2、Cu2I2(3-chloropyridine)2(PPh3)2And [ Cu ]2I2(PPh3)2(pyrazine)]nOne or more of; wherein 3-picoline is 3-methylpyridine, PPh3Is triphenylphosphine, 3-chloropyridine is 3-chloropyridine, and pyrazine is pyrazine.
3. The use according to claim 1, wherein the mass ratio of the cuprous complex to the textile is 1: 200.
4. use according to claim 1, wherein the textile is a nonwoven of polyterephthalic acid or polyacrylonitrile.
5. A fluorescent textile, characterized in that: comprises a textile and a cuprous complex compounded on the textile.
6. The fluorescent textile of claim 5, wherein: the cuprous complex is selected from Cu2I2(3-picoline)2(PPh3)2、Cu2I2(3-chloropyridine)2(PPh3)2And [ Cu ]2I2(PPh3)2(pyrazine)]nOne or more of; wherein 3-picoline is 3-methylpyridine, PPh3Is triphenylphosphine, 3-chloropyridine is 3-chloropyridine, and pyrazine is pyrazine.
7. The fluorescent textile of claim 5, wherein the mass ratio of the cuprous complex to the textile is 1: 200.
8. the fluorescent textile of claim 5, wherein the textile is a non-woven fabric of polyethylene terephthalate or polypropylene.
9. A method of making the fluorescent textile of any of claims 5-8, comprising the steps of:
and (3) dipping the textile into an organic solution of a cuprous complex, and then carrying out hot-pressing treatment to form the fluorescent textile.
10. The method of claim 9, wherein: the temperature of the hot pressing treatment is 80-150 ℃.
Technical Field
The invention relates to the technical field of functionalized high polymer materials, in particular to a fluorescent textile and a preparation method thereof.
Background
The diversified design of textiles is closely related to the characteristics of the dyes used therein. With the trend of times, fluorescent dyes are gradually added to textile designs. However, conventionally used fluorescent dyes are mainly macrocyclic conjugated organic compounds, relying on their relatively good excitation emission optical properties. Most of the existing organic fluorescent dyes have strong toxicity, and the molecular structures of the organic fluorescent dyes are difficult to keep good luminous stability under long-term ultraviolet irradiation. Meanwhile, the organic fluorescent dye applied in large scale causes the water body to be polluted imaginably, and the recovery and treatment of industrial waste materials become very difficult. Therefore, an environment-friendly fluorescent material with good stability needs to be found to realize low-cost and high-efficiency industrial large-scale production.
With the gradual development of the field of fluorescence research, the fluorescence characteristics of metal coordination compounds are gradually developed. Different from the traditional adjusting means of fluorescent organic dyes, the fluorescence adjustment of the metal organic complex is simpler and more convenient, the adjustment of the fluorescence wavelength of the complex can be realized only by changing the type and the structure of the substituent group of the small molecular ligand, and the design and the production of fluorescent textiles are undoubtedly enriched. Among them, the noble metal complex inevitably becomes too high in price of fluorescent textile due to its high cost, and thus it is difficult to be put into practical large-scale industrial production application. Therefore, it is necessary to develop a fluorescent dye which is relatively cheap, environment-friendly, high in luminous efficiency and good in stability to prepare fluorescent textiles.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a fluorescent textile and a preparation method thereof.
The first object of the present invention is to disclose the use of cuprous complexes as fluorescent dyes for textiles.
Further, the cuprous complex is selected from Cu2I2(3-picoline)2(PPh3)2、Cu2I2(3-chloropyridine)2(PPh3)2And [ Cu ]2I2(PPh3)2(pyrazine)]nOne or more of; wherein 3-picoline is 3-methylpyridine, PPh3Is triphenylphosphine, 3-chloropyridine is 3-chloropyridine, and pyrazine is pyrazine.
Further, the mass ratio of the cuprous complex to the textile is 1: 200.
further, the textile is a polyethylene terephthalate nonwoven fabric, a polyacrylonitrile nonwoven fabric, or the like.
Compared with the noble metal complex, the cuprous complex has lower cost, good luminescent property and environmental friendliness. The industrial manufacturing cost of the fluorescent textile is greatly reduced, and the fluorescent textile can widely enter the market to be sold. The cuprous complex is used as a fluorescent dye, the design variety of the textile is widened by the adjustable fluorescence spectrum of the cuprous complex, and the requirements of aesthetic appreciation and product design are met.
The invention also provides a fluorescent textile which comprises the textile and the cuprous complex compounded on the textile.
Further, the cuprous complex is selected from Cu2I2(3-picoline)2(PPh3)2、Cu2I2(3-chloropyridine)2(PPh3)2And [ Cu ]2I2(PPh3)2(pyrazine)]nOne or more of; wherein 3-picoline is 3-methylpyridine, PPh3Is triphenylphosphine, 3-chloropyridine is 3-chloropyridine, and pyrazine is pyrazine.
Further, the mass ratio of the cuprous complex to the textile is 1: 200.
further, the textile is a polyethylene terephthalate non-woven fabric, a polypropylene non-woven fabric, or the like.
The third purpose of the invention is to provide a preparation method of the fluorescent textile, which comprises the following steps:
and (3) soaking the textile in an organic solution of the cuprous complex, and then carrying out hot-pressing treatment to form the fluorescent textile.
Further, the temperature of the hot pressing treatment is 80-150 ℃.
Further, the solvent used for the organic solution of the cuprous complex comprises acetone and/or dimethylacetamide; preferably a mixture of acetone and dimethylacetamide.
Preferably, the mass ratio of acetone to dimethylacetamide is 2: 1.
further, the hot pressing treatment is heating pressing by adopting an aluminum sheet electrode.
By the scheme, the invention at least has the following advantages:
the cuprous complex is used as the fluorescent dye of the textile, and has the characteristics of environmental friendliness, high luminous efficiency, easiness in treatment and the like. Therefore, the prepared composite fluorescent textile also has the advantages of environmental friendliness, high luminous efficiency and the like. The cuprous complex adopted by the invention can adjust the ligand structure by means of different ligands through controlling the synthetic raw materials, and can widely adjust the fluorescence emission wavelength of the complex. Therefore, the fluorescent textile provided by the invention can flexibly adjust the fluorescent color, and even can realize common dye color adjustment through doping, so that the fluorescent color can theoretically cover the whole visible light area.
The cuprous complex composite textile is utilized to form the fluorescent textile, and the prepared fluorescent textile is environment-friendly, high in luminous efficiency, good in stability and easy to recover. The cuprous complex is used as a fluorescent dye, and fluorescent printing of the textile is realized through hot-pressing compounding. The invention can prepare fluorescent textiles with different fluorescent colors by selecting different cuprous complexes, and provides a new theory and technical support for the research of novel fluorescent textiles. Moreover, the preparation process of the fluorescent textile is simple, high in yield and low in cost, is suitable for large-scale preparation of composite fluorescent textiles with different colors, and has a good application prospect.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following description is made with reference to the preferred embodiments of the present invention and the accompanying detailed drawings.
Drawings
FIG. 1 is a schematic representation of the luminescent properties of fluorescent textiles prepared according to the present invention.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the following embodiments of the present invention, the reference numerals, symbols and english symbols have the following meanings:
CuI is cuprous iodide, 3-pc is 3-methylpyridine, tpp is triphenylphosphine (also known as PPh)3) Pz (pyrazine) is pyrazine, PTA is poly (terephthalic acid) nonwoven fabric, [email protected] PTA is Cu2I2(3-picoline)4Fluorescent textile prepared by compounding fluorescent dye with poly (terephthalic acid) non-woven fabric, wherein [email protected] PTA is Cu2I2(3-chloropyridine)2(PPh3)2Fluorescent textile prepared by compounding fluorescent dye with poly (terephthalic acid) non-woven fabric, wherein [email protected] PTA is [ Cu2I2(PPh3)2(pyrazine)]nThe fluorescent textile prepared by compounding fluorescent dye with the poly terephthalic acid non-woven fabric.
Example 1: preparation of fluorescent dyes
(1)Cu2I2(3-picoline)4The preparation of (1):
CuI (0.38g, 2mmol) and 3-methylpyridine (0.74g, 8mmol) were added to 20mL of acetone at a molar ratio of 1:4 at room temperature to form a mixture, which was stirred for 30 min. Filtering, collecting to obtain powder, washing with acetone twice, and drying in air to obtain Cu2I2(3-picoline)4。
(2)Cu2I2(3-picoline)2(PPh3)2The preparation of (1):
taking Cu2I2(3-picoline)4(0.3g, 0.4mmol) in 10mL of acetone to form solution A, and the excess of PPh is added with stirring3A toluene solution (4mL) (0.26g, 1mmol) was added to solution A to form a mixture 1, which was stirred for 2 hours to complete the reaction. Filtering, collecting to obtain powdery solid, washing with acetone twice, and drying in air to obtain Cu2I2(3-picoline)2(PPh3)2。
Example 2: preparation of fluorescent dyes
Cu prepared in example 12I2(3-picoline)2(PPh3)2(0.22g, 0.2mmol) and an excess of 3-chloropyridine (0.11g, 1mmol) were added to 10mL of toluene to form a mixed solution 2, which was heated at 80 ℃ for 24 hours. Filtering, collecting to obtain powdery solid, washing with toluene and acetone twice, and drying in air to obtain Cu2I2(PPh3)2(3-chloropyridine)2。
Example 3: preparation of fluorescent dyes
Cu prepared in example 12I2(3-picoline)2(PPh3)2(0.22g, 0.2mmol) and an excess of pyrazine (0.08g, 1mmol) were added to 10mL of toluene to form a mixture 3, which was heated at 80 ℃ for 24 hours. Filtering, collecting to obtain precipitate 3, washing with toluene and acetone twice, and drying in air to obtain [ Cu ]2I2(PPh3)2(pyrazine)]n。
Example 4: preparation of fluorescent textiles
20mg of cuprous complex was added to 20mL of acetone/dimethylacetamide (2: 1), and stirred for 1 hour to disperse well to form a solution or suspension. Immersing the non-woven fabric of the polyterephthalic acid in the dispersion, then covering an aluminum plate on the surface of the non-woven fabric of the polyterephthalic acid, and forming the fluorescent textile by hot-pressing and compounding at the temperature of 100 ℃.
The above-mentioned cuprous complexes were selected from the Cu compounds prepared in examples 1-3, respectively2I2(3-picoline)2(PPh3)2、Cu2I2(PPh3)2(3-chloropyridine)2And [ Cu ]2I2(PPh3)2(pyrazine)]nAnd finally preparing the corresponding textile from the three fluorescent dyes.
The color expressions of [email protected] PTA, [email protected] PTA and [email protected] PTA in the natural light are shown in the sequence of fig. 1a, b and c, and the fluorescence expressions of [email protected] PTA, [email protected] PTA and [email protected] PTA in the ultraviolet light dark field are shown in the sequence of fig. 1d, e and f.
Table 1 shows the results of the characterization of the fluorescence properties of fluorescent textiles produced with three fluorescent dyes, from the test results in Table 1, it can be seen that Cu is used2I2(3-picoline)2(PPh3)2When the fluorescent dye is used as a fluorescent dye, the fluorescence emission wavelength is 438nm, and the fabric is represented as a blue fluorescent textile. Using Cu2I2(PPh3)2(3-chloropyridine)2When the fluorescent dye is used as a fluorescent dye, the fluorescence emission wavelength is 496nm, and the textile is represented as green fluorescent textile. Using [ Cu ]2I2(PPh3)2(pyrazine)]nWhen the fluorescent dye is used as a fluorescent dye, the fluorescent emission wavelength is 614nm, and the textile shows orange red fluorescence.
TABLE 1 results of characterization of the fluorescence properties of different fluorescent textiles
Material
Fluorescence emission wavelength (nm)
Emission colour
[email protected]
438
Blue (B)
[email protected]
496
Green colour
[email protected]
614
Orange color
The fluorescent dye provided by the invention is environment-friendly, the quantum yield is stable between 5.1% and 6.5%, the good luminescent characteristic is still kept under the condition of 80-150 ℃ hot pressing, and meanwhile, the fluorescent dye is low in dissolution rate and easy to recover from a water environment. The invention adopts the cuprous complex as the fluorescent watermark, and realizes the fluorescent printing of the non-woven fabric of the poly terephthalic acid by hot-pressing compounding. The invention can prepare fluorescent textiles with different fluorescent colors by selecting different cuprous complexes, and provides a new theory and technical support for the research of novel fluorescent textiles. Moreover, the preparation process of the fluorescent textile is simple, high in yield and low in cost, is suitable for large-scale preparation of fluorescent textiles with different colors, and has a good application prospect.
The cuprous complex capable of stably emitting fluorescence is used as the fluorescent dye, so that the problem in the prior art of the fluorescent dye is solved, the cuprous complex is finally compounded with the non-woven fabric of the poly terephthalic acid to form the fluorescent textile capable of being widely used, and the existing application limit of the existing fluorescent textile is solved. The development of cheap and effective fluorescent dye for improving the performance of fluorescent textiles is a very advanced research direction in the field and is also the founding point of the invention.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
- 上一篇：一种医用注射器针头装配设备
- 下一篇：涤纶节水节能染色方法