Rare earth/polymer composite luminous material and its preparation method

A technology of luminescent materials and polymers, which is applied in the field of rare earth/polymer composite luminescent materials and its preparation, can solve the problems of low luminous efficiency of rare earth particles and lack of the most effective way to improve the luminous intensity of rare earth ions, and achieve improved luminous intensity, luminous High strength, the effect of increasing the amount of rare earth

Inactive Publication Date: 2007-05-02
BEIJING UNIV OF CHEM TECH
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Problems solved by technology

However, due to the low luminescence efficiency of rare earth particles, the patented method uses rare earth organic salts to polymerize in situ with polymer matrix materials, which still fails to make up for the defect that rare earth ions have small absorption coefficients in the ultraviolet and visible light regions, so there is no most effective way to increase the rare earth ions. The luminous intensity of the ion

Method used

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  • Rare earth/polymer composite luminous material and its preparation method
  • Rare earth/polymer composite luminous material and its preparation method
  • Rare earth/polymer composite luminous material and its preparation method

Examples

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Embodiment 1

[0026] Example 1: first react the rare earth oxide with 1:1 hydrochloric acid and convert it into the rare earth chloride SmCl 3, then mix this chloride solution with TTA, HAA and phen in a molar ratio of 1:2:1:1, react at 60°C for 2 hours, adjust the pH value of the solution to 5-6 with a 1:1 ammonia solution, Stand still at room temperature, filter, and the product is placed in a vacuum oven at 80°C overnight to prepare (Sm(TTA) 2 (AA)phen), 100 parts of nitrile rubber (NBR), and rare earth organic complex (Sm(TTA) 2 (AA) phen) composite material composed of 2 parts.

[0027] Implementation of in-situ reaction and preparation of composite materials: run the mill at room temperature, add 100g NBR to make it roll, add rare earth organic complex (Sm(TTA) 2 (AA)phen) 2g, mix well, add 3g double 2,5 after eating powder, make ten triangle bags, evenly slice, then place in a 10cm×6cm×2cm mold, pressurize and exhaust, the pressure is 100kg / cm 2 After pressing for 15 minutes (in s...

Embodiment 2

[0028] Embodiment 2: 100 parts of nitrile rubber (NBR), with the rare earth organic complex (Sm(TTA) prepared in embodiment 1 2 (AA) phen) composite material composed of 5 parts. Implementation of in-situ reaction and preparation of composite materials: run the mill at room temperature, add 100g NBR to make it roll, add rare earth organic complex (Sm(TTA) 2 (AA)phen) 5g, mix well, add 3g double 2,5 after eating powder, make ten triangular bags, the next piece is uniform, and then placed in a 10cm×6cm×2cm mold, pressurized and exhausted, the pressure is 100kg / cm 2 After pressing for 15 minutes (in situ reaction occurs at this stage), the mold was taken out to take out the sample.

Embodiment 3

[0029] Embodiment 3: 100 parts of nitrile rubber (NBR), with the rare earth organic complex (Sm(TTA) prepared in embodiment 1 2 (AA) phen) composite material consisting of 8 parts. Implementation of in-situ reaction and preparation of composite materials: run the mill at room temperature, add 100g NBR to make it roll, add rare earth organic complex (Sm(TTA) 2 (AA)phen) 8g, mix well, add 3g double 2,5 after eating powder, make ten triangle bags, the next piece is uniform, and then placed in a 10cm×6cm×2cm mold, pressurized and exhausted, the pressure is 100kg / cm 2 After pressing for 15 minutes (in situ reaction occurs at this stage), the mold was taken out to take out the sample.

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Abstract

The invention relates to a rare earths / macromolecule compounding luminescent material and the method to manufacture. It is mainly using organic ligand that can form good match to rare earths ion, cooperation reagent and acrylic acid to make RE(TTA)2(AA)phen, which would be filled into buna. Adding peroxide, reaction in situ would be taken while cross-link taking. Thus, the rare earths / macromolecule compounding luminescent material would be made. The invention could atone the disadvantage of small absorb coefficient that the rare earths ion is in ultraviolet region or visible light region.

Description

technical field [0001] The invention relates to a rare earth / polymer composite luminescent material and a preparation method thereof. In particular, the compound material obtained by in-situ reaction of rare earth organic complex and polymer matrix material and its preparation method. Background technique [0002] Rare earth elements have luminescent properties due to their 4f electron layer structure, and are ideal luminescent materials. Studies have shown that rare earth ions themselves have low luminous efficiency, but rare earth elements can form rare earth organic complexes with organic ligands with high light absorption coefficients. Due to the strong absorption of organic ligands in the ultraviolet and visible light regions, and can effectively transfer the excited state energy to the central ion to emit light through non-radiative transitions, thereby sensitizing the light emission of rare earth ions, making up for the rare earth ions in the ultraviolet and visible l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06
Inventor 刘力张立群贺磊张婉刘彦东
Owner BEIJING UNIV OF CHEM TECH
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