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Upconversion optical polyester film and preparation method thereof

A technology of optical polyester and film, which is applied in the field of up-converting optical polyester film and its preparation, can solve the problems of light transmittance decrease, achieve strong absorption, increase visible light intensity, and reduce heat radiation

Inactive Publication Date: 2014-11-05
SUZHOU XILIN OPTOELECTRONICS TECH IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an up-conversion polyester film and a preparation method thereof, which are used to solve the problem that the light transmittance decreases while reflecting heat radiation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1) Preparation of lanthanide rare earth phosphate:

[0017] Will Y 2 o 3 and Tb 2 o 3 Slowly add 85% phosphoric acid to form a large precipitate, then concentrate and stabilize the precipitate, then separate the solid, wash it with distilled water several times to remove excess phosphoric acid, dry it and roast it at 950°C for 3 hours under the protection of nitrogen to obtain YPO 4 :Tb 3+ ;

[0018] 2) Preparation of composite polyester film layer:

[0019] The raw materials are fully mixed in the mixer according to the following parts by weight, and then extruded, cooled and sliced ​​by twin-screw melt blending:

[0020] 95 slices of PBT;

[0021] YPO obtained in Step 1 4 :Tb 3+ 10 copies;

[0022] 1 part calcium carbonate;

[0023] The composite polyester film layer is obtained by biaxially stretching the composite slice.

[0024] 3) Preparation of up-conversion polyester film:

[0025] One side of the composite polyester film layer is compounde...

Embodiment 2

[0027] 1) Preparation of lanthanide rare earth phosphate:

[0028] Reaction of isopropanol with potassium metal forms a salt; this alkoxide is then reacted with YCl 3 and P 2 o 5 React to synthesize the alkoxide of yttrium phosphorus, and then hydrolyze to quickly obtain the colloid, wash the colloid with deionized water repeatedly to remove KCl; after drying, roast at 1200°C for 12 hours to obtain the desired product;

[0029] 2) Preparation of composite polyester layer:

[0030] The raw materials are fully mixed in the mixer according to the following parts by weight, and then extruded, cooled and sliced ​​by twin-screw melt blending:

[0031] 60 pieces of PET large glossy slices;

[0032] 10 parts of lanthanide rare earth phosphates obtained in step 1;

[0033] 1 part silicon dioxide;

[0034] The composite polyester film layer is obtained by biaxially stretching the composite slice.

[0035] 3) Preparation of up-conversion polyester film:

[0036] One side of the c...

Embodiment 3

[0038] 1) Preparation of lanthanide rare earth phosphate:

[0039] 10mL0 . 4M NH 4 h 2 PO 4 The solution was added to 10mL Gd(NO 3 ) 3 (0.4M) solution, stirred rapidly for 20 minutes, adjusted the pH value with ammonia water, then put it in an autoclave at 150°C for hydrothermal treatment for 12h, then naturally cooled to room temperature, filtered and washed, and air-dried at 80°C to obtain the obtained Required sample GdPO 4 ;

[0040] 2) The raw materials are fully mixed in the mixer according to the following parts by weight, and then extruded through twin-screw melt blending, cooled and sliced:

[0041] PETG 80 copies;

[0042] 25 parts of lanthanide rare earth phosphates obtained in step 1;

[0043] Titanium oxide 1 part;

[0044] The composite polyester film layer is obtained by biaxially stretching the composite slice.

[0045] 3) Preparation of up-conversion polyester film:

[0046] One side of the composite polyester film layer is compounded with the scra...

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PUM

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Abstract

Belonging to high polymer materials, the invention in particular relates to an upconversion optical polyester film and a preparation method thereof. The upconversion optical polyester film comprises a scratch resistant layer, a composite polyester film layer, an installation adhesive layer and a release film. The composite polyester layer is a lanthanide rare-earth phosphate / polyester film. The preparation method includes: compounding one side of the composite polyester film layer with the scratch resistant layer, and compounding the other side with the installation adhesive layer, and compounding the release film on the installation adhesive layer. Specifically, the composite polyester film layer is obtained by melt blending of the following raw materials by weight: 20-95 parts of a polyester chip; 2-25 parts of lanthanide rare-earth phosphate; and 0.1-5 parts of an anti-adhesion agent. According to the technical scheme provided by the invention, the lanthanide rare-earth phosphate is employed to modify the polyester film, realizes strong absorption of an infrared light region, and the polyester film converts to visible region emission, thereby increasing the intensity of visible light while achieving lowering of thermal radiation.

Description

technical field [0001] The invention belongs to polymer materials, and in particular relates to an up-conversion polyester film and a preparation method thereof. Background technique [0002] The sun is the main heat source of the earth, bringing light and heat to the earth in the form of electromagnetic radiation. The wavelengths of solar radiant energy that can be received on the earth are mainly distributed in the range of 250-2500nm. Among them, the radiant energy in the ultraviolet region of 250-400nm accounts for less than 5% of the total energy received by the surface of the sun, the radiant energy in the visible region of 400-720nm accounts for about 45%, and the near-infrared region of 720-2500nm The radiant energy also accounts for about 45%, and the radiant energy greater than 2500nm is less than 5%. The black body radiation of the high temperature body that is ubiquitous on the earth, its energy distribution is mostly located in the middle and far infrared regi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/04B32B27/06B32B27/36B32B27/18B32B7/12B32B37/15
Inventor 金国华黄强杨乐施燕陈胜利周明许修安韩州叶建明朱霆
Owner SUZHOU XILIN OPTOELECTRONICS TECH IND