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Complex/PVA composite material as well as preparation method and application thereof

A technology of composite materials and complexes, applied in the direction of luminescent materials, chemical instruments and methods, single-component synthetic polymer rayon, etc., can solve the problems of difficult collection of complexes, poor processability, secondary pollution, etc., and achieve optimal application Performance, promotion of application, high mechanical strength effect

Active Publication Date: 2021-08-13
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at problems such as difficult collection, poor processability, difficult separation, and secondary pollution of complexes at present, and proposes a complex / PVA composite material and its preparation method and application, utilizing the excellent processability of PVA hydrogel The mechanical properties of the powder complexes can be molded to promote the application of the complexes, especially the light-emitting complexes, in devices.

Method used

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  • Complex/PVA composite material as well as preparation method and application thereof
  • Complex/PVA composite material as well as preparation method and application thereof
  • Complex/PVA composite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Preparation of matrix membrane

[0046] (1) Preparation of pyrazolyl ring trinuclear Cu(I)(Cl-α) luminescent complex:

[0047] Cu(NO 3 ) 2 ·3H 2 O (60.4mg), 4-chloropyrazole (51.26mg) was dissolved in ethanol, and then diluted to 25mL with ethanol, so that the Cu(NO 3 ) 2 ·3H 2 The concentrations of O and 4-chloropyrazole were 0.01mol / L and 0.02mol / L, respectively. Then add 2mL of the above solution into a dry and clean hard thick-walled glass tube with an inner diameter of 8mm, and add 1mL of chlorobenzene into it, seal the tube with a hydrogen-oxygen flame machine, and put it in a constant temperature oven . The temperature was raised to 140° C. within 10 minutes, maintained for 12 hours, and then lowered to room temperature at a cooling rate of 5° C. / h. After opening the glass tube, a colorless and transparent Cl-α complex needle crystal was obtained, such as figure 1 shown.

[0048] (2) Preparation of PVA aqueous solution:

[0049] Add PVA powder into hot...

Embodiment 2

[0066] Preparation of matrix fibers

[0067] Step (1) Preparation of pyrazolyl ring trinuclear Cu(I)(Cl-α) luminescent complex and Step (2) preparation of PVA aqueous solution are the same as in Example 1.

[0068] (3) Preparation of matrix fiber:

[0069] Add the Cl-α luminescent complex to the PVA solution, stir for 14 hours, sonicate for 2 hours, and then degas to form a mixed solution, wherein the concentration of the Cl-α luminescent complex is 5 wt%; pour the above mixed solution into a syringe, Then extrude at a constant speed through a pump into a saturated sodium sulfate solution and salt out to form a matrix fiber.

Embodiment 3

[0071] Preparation of 3D printed devices

[0072] Step (1) The preparation of pyrazolyl ring trinuclear Cu(I)(Cl-α) luminescent complex is the same as in Example 1.

[0073] (2) Preparation of PVA aqueous solution:

[0074] Add PVA powder into hot water at 90° C., dissolve, stir, and react for 4 hours to obtain a PVA aqueous solution, wherein the concentration of PVA is 15 wt%.

[0075] (3) Preparation of 3D printed devices:

[0076] Add the Cl-α luminescent complex to the PVA solution, stir for 14 hours, ultrasonicate for 2 hours, and then degas to form a mixed solution, in which the concentration of the Cl-α luminescent complex is 2 wt%. The above mixed solution is passed through an extrusion 3D The printer extrudes and prints devices of various shapes in a saturated sodium sulfate solution. Models of 3D printed devices of different shapes such as Figure 10 , Figure 11 shown.

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Abstract

The invention discloses a complex / PVA composite material as well as a preparation method and application thereof. The complex / PVA composite material is prepared by dispersing a complex in PVA hydrosol and performing salting-out molding. The complex / PVA composite material can exist in the form of a matrix membrane and a matrix fiber and can also be molded into devices in various shapes through a 3D printer. According to the complex / PVA composite material, the complex material is formed by means of the formability and processability of PVA hydrogel, the problems of potential safety hazards and poor processability caused by formation of a powdery complex material are solved on the premise that the structure and performance of the complex material are not damaged, and the complex / PVA composite material has a good application prospect in the aspect of complex devices.

Description

technical field [0001] The invention belongs to the technical field of complex materials, and in particular relates to a complex / PVA composite material and its preparation method and application. Background technique [0002] A coordination compound is any compound comprising coordinating entities. A coordination entity is an ion or a neutral molecule, which consists of a central atom (usually a metal atom) and a group of atoms connected around it, and each atom is called a ligand. Luminescent complexes are one of many complexes. The luminescent complex system can emit both fluorescence and phosphorescence, and its luminescence can be roughly divided into the following categories: 1. Central metal ion-dominated luminescence; 2. Ligand-dominated luminescence; 3. Host-guest complexes. glow. Cyclic trinuclear Au / Ag / Cu complexes are a class of luminescent complexes with characteristic trimetallic coordination nine-membered rings, and their ligands include pyrazole, imidazole,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08K5/00C08J5/18D01F6/50D01F1/10B33Y70/10C09K11/06C09K11/02
CPCB33Y70/10C08J5/18C08J2329/04C08K5/0091C08L2203/12C08L2203/16C09K11/025C09K11/06C09K2211/1044C09K2211/188D01F1/10D01F6/50C08L29/04
Inventor 王吉壮蔡璇李丹高粱王宇韬罗郁民
Owner JINAN UNIVERSITY
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