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Application of modified material based on europium-titanium bimetallic clusters in preparation of polyvinyl chloride hard sheet

A technology of polyvinyl chloride and modified materials, applied in the direction of luminescent materials, luminescent coatings, coatings, etc., can solve the problems of uneven coating and achieve the effect of strong ultraviolet absorption ability

Active Publication Date: 2020-11-17
ZHEJIANG INST FOR FOOD & DRUG CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Titanium oxide clusters can be dissolved by organic solvents, and can be evenly coated on the surface of PVC hard sheet to form a layer of protective titanium dioxide film, while ordinary titanium dioxide powder cannot be dissolved in water or organic reagents, and cannot be uniform The coating forms a protective film on the PVC hard sheet

Method used

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  • Application of modified material based on europium-titanium bimetallic clusters in preparation of polyvinyl chloride hard sheet
  • Application of modified material based on europium-titanium bimetallic clusters in preparation of polyvinyl chloride hard sheet
  • Application of modified material based on europium-titanium bimetallic clusters in preparation of polyvinyl chloride hard sheet

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The preparation process of europium-titanium bimetallic cluster molecular solution of the present invention is:

[0029] (1) Add 0.25g of europium chloride, 2.5ml of tetraethyl titanate, and 5ml of absolute ethanol into a hydrothermal reaction kettle, put them in an oven, and react at 150°C for 70 hours, and then at 10°C / h Cool down to room temperature, close the oven, open the reaction kettle, and collect the liquid to obtain 5ml of europium-titanium bimetallic cluster molecular solution. The solution is colorless, transparent and clear under natural light, and red under 254nm ultraviolet excitation light. For details, see figure 1 .

[0030] (2) Place the collected europium-titanium bimetallic cluster molecule solution in a constant humidity incubator at 25°C and 40% humidity for 20 days to obtain a red single crystal under 254nm ultraviolet excitation light. For details, see the attached figure 2 . The crystal structure obtained by single crystal diffractometer is...

Embodiment 2

[0032] The preparation process of europium-titanium bimetallic cluster molecular solution of the present invention is:

[0033] (1) Add 0.25g of europium chloride, 7.5ml of tetraethyl titanate, and 50ml of absolute ethanol into a hydrothermal reaction kettle, put them in an oven, and react at 200°C for 140 hours, and then at 15°C / h Cool down to room temperature, close the oven, open the reaction kettle, and collect the liquid to obtain 50ml of europium-titanium bimetallic cluster molecular solution. The solution is colorless, transparent and clear under natural light, and red under 254nm ultraviolet excitation light. For details, see figure 1 .

[0034] (2) Place the collected europium-titanium bimetallic cluster molecule solution at 30° C. in a constant humidity incubator with 60% humidity for 40 days to obtain a red single crystal under 254nm ultraviolet excitation light, which is analyzed by a single crystal diffractometer. The crystal structure is [Eu 2 Cl 2 Ti 4 o 20...

Embodiment 3

[0036] (1) Dilute 1 ml of the europium-titanium bimetallic cluster solution obtained in Example 1 by 200 times with absolute ethanol for later use.

[0037] (2) Take the diluted europium-titanium bimetallic cluster solution and use a wet film maker to evenly coat a layer of 50 μm solution on a hard polyvinyl chloride sheet of 10 mm×70 mm. After the polyvinyl chloride hard sheet is coated with europium-titanium bimetallic oxygen cluster solution, it is dried in an oven at 60°C for 30 minutes to form a coating. It is still colorless and transparent under natural light, and it is red fluorescent under 254nm ultraviolet excitation light. see attached image 3 .

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Abstract

The invention provides application of a modified material based on europium-titanium bimetallic clusters [Eu2Cl2Ti4O20] in a polyvinyl chloride hard sheet. The material is prepared by the following steps: adding europium chloride, tetraethyl titanate and absolute ethyl alcohol A into a hydrothermal reaction kettle, reacting at 150-200 DEG C for 70-140 hours, then cooling to room temperature in a speed of 10-15 DEG C / h, and collecting reaction liquid that is the modified material. According to the invention, europium-titanium bimetal oxygen cluster molecules are dissolved and modified by an organic solvent, a method for preparing europium-titanium bimetal oxygen cluster molecules and applying the europium-titanium bimetal oxygen cluster molecules to polyvinyl chloride is found, and the polyvinyl chloride hard sheet with stronger ultraviolet absorption capability (so as to resist photoaging) and remarkable fluorescence phenomenon is prepared.

Description

technical field [0001] The present invention relates to a kind of based on europium-titanium double metal cluster [Eu 2 Cl 2 Ti 4 o 20 ] modified material in the preparation of polyvinyl chloride hard sheet, specifically related to the application of the compound on polyvinyl chloride hard sheet, with europium-titanium double metal cluster [Eu 2 Cl 2 Ti 4 o 20 ] The polyvinyl chloride hard sheet made of the modified material has good ultraviolet absorption capacity. Background technique [0002] Due to its excellent physical properties, PVC hard sheet is insoluble in water, alcohol, gasoline, and has low gas and water vapor leakage, so it is widely used in many fields such as pharmaceutical packaging and food packaging. The problem of light aging has always been a difficult problem for PVC rigid sheets, so how to improve the light aging resistance of PVC rigid sheets has become a key research direction. [0003] Titanium dioxide has excellent anti-ultraviolet ability...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/06C09D5/22C09K11/86C08L27/06
CPCC08J7/06C09D5/22C09K11/7732C08J2327/06
Inventor 蔡志威苏少丽吕耀康陈超李建杭
Owner ZHEJIANG INST FOR FOOD & DRUG CONTROL