Red-blue double-peak gain light conversion material composition and preparation method and application thereof

A material composition, red and blue technology, applied in the fields of photovoltaic power generation, agricultural machinery and equipment, climate change adaptation, etc., can solve the problems of not improving crop quality and reducing pests and diseases, limited effect of increasing yield, and poor spectral matching, etc. The effect of large-scale promotion, reducing the use of pesticides, and promoting crop growth

Pending Publication Date: 2022-08-09
SUZHOU UNIV OF SCI & TECH
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although my country has successfully developed photoecological agricultural films, most of them are mainly for temperature increase, with narrow light conversion range and poor effect. and mitigate the effects of pests and diseases

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Red-blue double-peak gain light conversion material composition and preparation method and application thereof
  • Red-blue double-peak gain light conversion material composition and preparation method and application thereof
  • Red-blue double-peak gain light conversion material composition and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] Another aspect of the embodiments of the present invention also provides a method for preparing the red-blue double-peak gain light-converting material composition, which includes: heating a uniform mixing system comprising a sensitizer, a luminescent agent and a matrix material to 100 ℃ Curing at ~140° C. for 1-5 hours to obtain the light-converting material composition with double-peak gain of red and blue.

[0036] In some embodiments, the preparation method includes: in a vacuum environment, dissolving the sensitizer and the luminescent agent in an organic solvent at a molar ratio of 1:1 to 1:360, and mixing and reacting with the polyurethane, and then heating up to 100 Curing at ~140° C. for 1 to 5 hours to obtain the light-converting material composition with double-peak gain of red and blue.

[0037] Further, the concentration of the sensitizer in the uniform mixing system is 1-10×10 -5 mol / L.

[0038] Further, the organic solvent includes N,N' dimethylacetamid...

Embodiment 1

[0054] Example 1 Preparation of PdTPP / DPA light-conversion masterbatch based on isophorone diisocyanate

[0055] What is used for the sensitizer in the present embodiment is the porphyrin metal complex PdTPP, and the molecular structural formula is:

[0056]

[0057] In this embodiment, the luminescent agent is anthracene derivative DPA, and its molecular structure is:

[0058]

[0059] Preparation of red and blue bimodal gain conversion masterbatch: under nitrogen atmosphere, isophorone diisocyanate (2.2g, 10.0mmol), polytetrahydrofurandiol (5.0g, 5.0mmol) and Dibutyltin dilaurate with excess catalyst was slowly heated up to 85°C and reacted for 3h to obtain a prepolymer, and then N,N'dimethylacetamide containing 1,4-butanediol (0.46g) was added to the prepolymer. solution, and continue to react for 2h.

[0060] Dissolve PdTPP and DPA in N,N' dimethylacetamide solution at a molar ratio of 1:1-1:360, add them into the prepared polyurethane, and stir and mix well. Afte...

Embodiment 2

[0064] Example 2 Preparation of PdTPP / DPA Light Conversion Masterbatch Based on Methylene Diisocyanate

[0065] The sensitizer and luminescent agent used in this example are the same as those in Example 1.

[0066] Preparation of red and blue bimodal gain conversion masterbatch: under nitrogen atmosphere, add methine diisocyanate (1.7g, 10.0mmol), polytetrahydrofurandiol (2.5g, 2.5mmol) and catalyst to three-necked round bottom flask respectively Excessive dibutyltin dilaurate was slowly heated to 70°C and reacted for 4h to obtain a prepolymer. A solution of N,N' dimethylformamide containing 1,4-butanediol (0.46 g) was added to the prepolymer, and the reaction was continued for 1 h. PdTPP and DPA were dissolved in N,N' dimethylformamide at a molar ratio of 1:360, and the solution was added to the prepared polyurethane and stirred and mixed well. After distilling part of the solvent under reduced pressure, it was poured into a mold and cured under vacuum at 110 °C for 3 h. T...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a red-blue double-peak gain light conversion material composition as well as a preparation method and application thereof. The red-blue double-peak gain light conversion material composition comprises a sensitizer, a luminescence agent and a matrix material, the sensitizer and the luminescence agent form a frequency up-conversion material which can emit blue light under excitation of green light, and the sensitizer is also used as a frequency down-conversion material and can emit red light under excitation of the green light. The light conversion material composition provided by the invention not only can absorb ultraviolet light which is unfavorable for crop growth, but also can convert green light which has little influence on photosynthesis into red light and blue light at the same time, so that the light conversion material composition is a light fertilizer, improves the sunlight quality, improves the comprehensive utilization rate of sunlight by crops, promotes crop growth, prematurity, yield increase and improves the crop quality; the use amount of pesticides and chemical fertilizers is reduced; in addition, the light conversion material composition can regulate and control the output intensity ratio of red light to blue light, and the requirements of different crops are met.

Description

technical field [0001] The invention belongs to the technical field of light-converting agricultural films, and in particular relates to a light-converting material composition with red and blue double-peak gain, a preparation method thereof, and its application in agricultural films. Background technique [0002] Sunlight is a basic environmental factor for plant growth and development. Its light quality not only affects the photosynthetic efficiency of crops, but also regulates the nutrients of crops. Red light with a wavelength of 600-700nm and blue light with a wavelength of 400-500nm are the most absorbed parts by chlorophyll and have the greatest optical activity; green light is physiologically ineffective light; Unfavorable growth. A certain light-converting agent is added to the agricultural film to obtain a light-converting agricultural film, which converts ultraviolet light that is unfavorable to crop growth and green light that has little effect on photosynthesi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08K5/00C08K5/01C08K5/03C08J3/22C08J5/18C08L101/00
CPCC08J3/226C08J5/18C08J2475/08C08J2300/00C08K5/0091C08K5/01C08K5/03Y02P60/14
Inventor 梁作芹晏旭顾慧婷王艾叶常青
Owner SUZHOU UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap