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A kind of compound/pva composite material and its preparation method and application

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, separation, and poor processability of complexes, and achieve optimal application performance , application promotion, high mechanical strength effect

Active Publication Date: 2021-11-26
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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  • A kind of compound/pva composite material and its preparation method and application
  • A kind of compound/pva composite material and its preparation method and application
  • A kind of compound/pva composite material and its preparation method and application

Examples

Experimental program
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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 and its preparation method and application. The complex / PVA composite material is prepared by dispersing the complex in PVA hydrosol through salting-out molding, and can be formed by matrix film, It exists in the form of matrix fibers and can also be molded into devices of various shapes by 3D printers. The complex / PVA composite material forms the complex material by virtue of the formability and processability of the PVA hydrogel, and solves the potential safety hazard of the powdery complex material without destroying the structure and performance of the complex material. And the problem of poor processability, it has a good application prospect in 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 Patents(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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