Anti-aging light conversion film and preparation method thereof

An anti-aging and thin-film technology, which is applied in chemical instruments and methods, luminescent materials, plant protection covers, etc., can solve the problem of unsatisfactory utilization, decline of light conversion performance of organic light conversion agents, weak anti-ultraviolet aging ability of light conversion agents, etc. Problems, to achieve the effect of improving application value, improving anti-ultraviolet aging ability, and improving anti-ultraviolet aging performance

Active Publication Date: 2010-07-21
JIANGSU BOILN PLASTICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, although the Eu(III) organic light conversion agent has high light conversion efficiency, the utilization rate is not ideal, and the anti-ultraviolet aging abili

Method used

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  • Anti-aging light conversion film and preparation method thereof
  • Anti-aging light conversion film and preparation method thereof
  • Anti-aging light conversion film and preparation method thereof

Examples

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Example Embodiment

[0021] Example 1:

[0022] Weigh tetraethylorthosilicate and absolute ethanol at a volume ratio of 1:25 to form solution I; weigh distilled water and solution I at a volume ratio of 1:15, and pass 0.1M ammonia Adjust the pH value to 9 to prepare sol II; change the rare earth light conversion agent Sm 0.5 Yb 0.5 (TTA) 3 Phen was added to Sol II at a ratio of 5.0g / L, heated in a water bath at 40°C for 8 hours to obtain a precipitated product; the reaction product was filtered, washed twice with absolute ethanol and distilled water, and dried in an oven at 60°C , Made SiO 2 Surface modification Sm 0.5 Yb 0.5 (TTA) 3 phen light conversion agent, the excitation spectrum and emission spectrum of the light conversion agent are as follows: figure 1 with figure 2 Shown. Then, the SiO 2 Surface modification Sm 0.5 Yb 0.5 (TTA) 3 The phen light conversion agent is dispersed in 100 parts by weight of the PVC polymer according to 1.5 parts by mass, and the surface modified rare earth light c...

Example Embodiment

[0023] Example 2:

[0024] Weigh tetraethylorthosilicate and absolute ethanol in a volume ratio of 1:15 to prepare solution I; weigh distilled water and solution I in a volume ratio of 1:12, adjust the pH with 0.05M sodium hydroxide solution Value to 8, mixed into sol II; the rare earth light conversion agent Sm 0.5 Tb 0.5 (TTA) 3 phen was added to Sol II at a ratio of 5g / L, heated in a water bath at 50°C for 6 hours to obtain a precipitated product; the reaction product was filtered, washed twice with absolute ethanol and distilled water, and dried in an oven at 80°C. SiO 2 Surface modification Sm 0.5 Tb 0.5 (TTA) 3 phen light conversion agent, the transmission electron microscope image is as image 3 As shown, it can be seen from the transmission electron microscope that the light conversion agent Sm 0.5 Tb 0.5 (TTA) 3 phen has been SiO 2 Wrap up nicely. SiO 2 Surface modification Sm 0.5 Tb b 0.5 (TTA) 3 The phen light conversion agent is dispersed in 100 parts of LDPE polymer...

Example Embodiment

[0025] Example 3:

[0026] Weigh anhydrous ethanol and butyl titanate in a volume ratio of 6:1, dissolve and prepare solution I; weigh anhydrous ethanol, distilled water, and acetic acid in a volume ratio of 6:2:1 to prepare solution II ; Mix the solutions I and II in a ratio of 8:1 by volume, adjust the pH to 5 with 1.0M HCl, and stir thoroughly to obtain sol III; add Sm 0.3 Gd 0.4 Yb 0.3 (TTA) 3 Dipy 2 Rare earth conversion agent was added to Sol III at a ratio of 6.0g / L, reacted in a water bath at 40°C for 6 hours to obtain a precipitated product; the product was filtered, washed with absolute ethanol and distilled water for 3 times, and dried in an oven at 50°C , Produced TiO 2 Surface modification Sm 0.3 Gd 0.4 Yb 0.3 (TTA) 3 Dipy 2 Rare earth organic light conversion agent. TiO 2 Surface modification Sm 0.3 Gd 0.4 Yb 0.3 (TTA) 3 Dipy 2 The rare earth organic light conversion agent is dispersed in 100 parts of PE polymer according to 3 parts by mass, and the surface modified...

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Abstract

The invention provides an anti-aging light conversion film and a preparation method thereof. The invention is characterized by uniformly dispersing 0.005-5 parts by weight of SiO2 or TiO2 surface modified rare earth organic light conversion agent SmxM1-x (TTA)mLn into 100 parts of polyolefin to obtain a surface modified rare earth light conversion film through blow molding or tape casting. The film of the invention can convert ultraviolet light and near infrared light in solar radiation into red light of 620nm-660nm, has strong anti-ultraviolet aging capacity and high emission efficiency and can promote photosynthesis of plants, and the strongest emission wavelength (647nm) is close to the maximum absorption peak positions of chlorophyll a and chlorophyll b.

Description

Technical field: [0001] The present invention relates to an anti-aging light-transforming film and a preparation method thereof, in particular to a film belonging to an anti-aging modified rare-earth organic light-transforming agent system that promotes plant photosynthesis and a preparation method thereof, which is expected to be used in agriculture with ecological imitation characteristics Light conversion system and solar photochemistry. Background technique: [0002] Agriculture is the foundation of the national economy, and agricultural plastic film is also a key industry in the country. It is estimated that the consumption of agricultural film in my country will exceed 2 million tons by 2010, and the market prospect is very broad. The development of agricultural plastic film has roughly gone through the following stages: the first generation of ordinary plastic agricultural film; the second generation of functional plastic agricultural film (including anti-aging, anti-...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/06C08L23/08C08L31/04C08K9/02C08K5/56C09K11/06A01G13/02
Inventor 陆春华倪亚茹徐程许仲梓
Owner JIANGSU BOILN PLASTICS CO LTD
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