Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Sulfur and indium compound system quantum dot light conversion film and preparation method thereof

A technology of quantum dots and compounds is applied in the field of quantum dot light-converting film of sulfur indium compound system and its preparation, which can solve the problems of mismatch of lifespan of light-converting agent and matrix resin, short service life of light-converting film, affecting plant absorption, and the like. Achieve the effect of improving crop quality, improving absorption and conversion efficiency, and simple production process

Inactive Publication Date: 2017-01-04
FOSHAN ONMILLION NANO MATERIALS
View PDF3 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the light conversion films widely used in the market are blown by doping the light conversion agent into PE, and there are generally the following problems: 1) The spectrum does not match, and the actual use effect is average; 2) After the film is formed The light transmittance is significantly reduced, which affects the absorption of light by plants; 3) The life of the light conversion agent does not match the matrix resin, and the overall service life of the light conversion film is short

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
  • Sulfur and indium compound system quantum dot light conversion film and preparation method thereof
  • Sulfur and indium compound system quantum dot light conversion film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0046] The preparation method of the above-mentioned sulfur indium compound system quantum dot light conversion film comprises the following steps:

[0047] 1) Granulation: Add the masterbatch matrix, sulfur indium quantum dot light converting agent, lubricant, light stabilizer and antioxidant into the high-speed mixer, mix well, and then transfer the material to the twin-screw extruder, extrude Granulating to obtain the masterbatch of light-changing agent;

[0048] 2) Film blowing: fully mix the masterbatch of the light converting agent and the film matrix, and then put the materials into a blow molding machine for blow molding to obtain a quantum dot light conversion film of sulfur indium compound system.

[0049] Preferably, the operating temperature of the twin-screw extruder described in step 1) is 180-200° C., and the screw speed is 300-500 r / min.

[0050] Preferably, the melting temperature of the material in the blow molding machine in step 2) is 170-190°C, and the te...

Embodiment 1

[0053] The raw material composition of a sulfur-indium compound system quantum dot light conversion film is shown in Table 1:

[0054] Table 1 The raw material composition table of a sulfur indium compound system quantum dot light conversion film

[0055] raw material parts by mass Masterbatch matrix (high density polyethylene) 100 Film substrate (polyethylene) 1500 Light converting agent (CuInS 2 : Zn 0.99 Ca 0.01 S) 1 N,N'-Ethylene bisstearamide 2 Light stabilizer 944 5 Light Stabilizer 770 5 Antioxidant 1010 5

[0056] The light conversion agent CuInS selected in this embodiment 2 : Zn 0.99 Ca 0.01 The absorption spectrum and emission spectrum of S are as follows figure 1As shown, the transmission electron microscope image is shown in figure 2 shown.

Embodiment 2

[0058] The raw material composition of a sulfur-indium compound system quantum dot light conversion film is shown in Table 2:

[0059] Table 2 The raw material composition table of a sulfur indium compound system quantum dot light conversion film

[0060] raw material parts by mass Masterbatch matrix (polyethylene) 100 Film substrate (polyvinyl chloride) 1000 Light converting agent (CuInS 2 : Zn 0.90 Sr 0.10 S) 0.01 N,N'-Ethylene bisstearamide 1.5 Light stabilizer 622 5 Antioxidant 1010 2.5 Antioxidant 264 0.5

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 sulfur and indium compound system quantum dot light conversion film and a preparation method thereof. The light conversion film is prepared from 100 parts of masterbatch substrate, 1,000-2,000 parts of film substrate, 0.005-2 parts of sulfur and indium quantum dot light conversion agent, 1.5-2.5 parts of lubricating agent, 5-15 parts of light stabilizer and 3-10 parts of antioxidant. The preparation method of the sulfur and indium compound system quantum dot light conversion film comprises the following steps of 1 granulation, wherein the masterbatch substrate, the sulfur and indium quantum dot light conversion agent, the lubricating agent, the light stabilizer and the antioxidant are fully mixed to be uniform, extruded through a twin-screw extruder for granulation, and light conversion agent masterbatches are obtained; 2 film blowing, wherein the light conversion agent masterbatches and the film substrate are fully mixed to be uniform, blow molding is conducted through a blow molding machine, and the sulfur and indium compound system quantum dot light conversion film is obtained. According to the sulfur and indium compound system quantum dot light conversion film and the preparation method thereof, the light conversion film is high in light transmittance and good in stability, an emission spectrum is matched with a plant photosynthesis spectrum, crop production can be effectively promoted, the crop quality can be improved, the production technology is simple, the cost is low, and the service life is long.

Description

technical field [0001] The invention relates to a sulfur-indium compound system quantum dot light conversion film and a preparation method thereof. Background technique [0002] Photosynthesis is a necessary condition for the growth and development of green plants, the basis for the survival of the biological world, and an important medium for the earth's carbon-oxygen balance. The sunlight that green plants rely on for photosynthesis is a mixed light source composed of a variety of different wavelengths of light, while green plants can only absorb blue light with a wavelength of 400-480nm and red-orange light with a wavelength of 600-680nm for photosynthesis , while the yellow-green light with a wavelength of 480-600nm is not needed for the growth of green plants. The light conversion film is a film capable of light conversion, which can convert ultraviolet light harmful to the growth of green plants into useful blue-violet light and red-orange light, or convert green ligh...

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
IPC IPC(8): C08L23/06C08L27/06C08L23/12C08L23/08C08L69/00C08L33/12C08K13/02C08K3/30B29B9/06B29C47/92B29C55/28B29C48/92
CPCC08L23/06B29B9/06B29C48/92B29C55/28B29C2948/9259B29C2948/92704B29C2948/92885C08J5/18C08J2323/06C08J2323/08C08J2323/12C08J2327/06C08J2333/12C08J2369/00C08J2423/06C08J2423/08C08J2423/12C08J2427/06C08L23/0853C08L23/12C08L27/06C08L33/12C08L69/00C08L2203/16C08L2205/025C08L2205/03C08L2207/062C08K13/02C08K2003/3009C08K2003/3036C08K2003/3018
Inventor 胡广齐梁敏婷李金芳陈焰
Owner FOSHAN ONMILLION NANO MATERIALS
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com