Methods and compositions for enhanced dispersion of phosphor in a polymeric matrix

Patent metadata

Field	Value
Publication number	US-2024352315-A1
Application number	US-202418754451-A
Country	US
Kind code	A1
Filing date	Jun 26, 2024
Priority date	Aug 3, 2018
Publication date	Oct 24, 2024
Grant date	—

Abstract

In one aspect, the disclosure relates to compositions comprising a surface-modified phosphor material comprising a phosphor material and a silane, methods of making same, and articles comprising same. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

First claim

1 . A greenhouse system, wherein at least one component of the greenhouse system comprises 0.01 wt % to 10 wt % of a surface-modified phosphor material and 99.99 wt % to 90 wt % of a matrix material, based on the total weight of the surface-modified phosphor material and the matrix material.

2 . The greenhouse system of claim 1 , wherein the component comprises a sheet, a film, glazing, or panel, and the surface-modified phosphor material is dispersed throughout the matrix material.

3 . The greenhouse system of claim 1 , wherein the matrix material comprises a polyethylene, a polyacrylate, a polycarbonate, a polystyrene, or combinations thereof.

4 . The greenhouse system of claim 1 , wherein the matrix material comprises a polyethylene.

5 . The greenhouse system of claim 1 , wherein the phosphor material has a particle size of 1 nm to 1000 nm.

6 . The greenhouse system of claim 1 , wherein the phosphor material has a particle size of 5 nm to 300 nm.

7 . The greenhouse system of claim 1 , wherein the phosphor material comprises a sulfide phosphor, wherein the sulfide phosphor comprises sulfur and a metal selected from calcium, strontium, cadmium, zinc, and combinations thereof.

8 . The greenhouse system of claim 6 , wherein the sulfide phosphor further comprises a rare earth element selected from Eu, Tb, Ce, Dy, Sm, Yb, Er, and combinations thereof.

9 . The greenhouse system of claim 1 , wherein the sulfide phosphor is (Ca, Sr, Ba)(Al, In, Ga) 2 S 4 :Eu, (Ca, Sr)S:Eu, CaS:Eu, (Zn, Cd)S:Eu:Ag, or combinations thereof.

10 . The greenhouse system of claim 1 , wherein the surface-modified phosphor material is produced by the method comprising:
preparing a phosphor material mixture consisting of a phosphor material and a liquid comprising a first alcohol, wherein the phosphor material is a sulfide phosphor; preparing a surface-modifying solution comprising a silane, water, and a second alcohol, wherein the surface-modifying solution has a pH of from 2 to 6; preparing a surface-modifying phosphor reaction mixture by mixing the phosphor material mixture and the surface-modifying solution, wherein the surface-modifying phosphor reaction mixture has a weight ratio of the silane to the phosphor material of 0.7:1 to 5:1; and heating the surface-modifying phosphor reaction mixture in an inert atmosphere at a temperature of from 40° C. to 100° C. for a period of 15 minutes to 6 hours; thereby forming the surface-modified phosphor material.

11 . The greenhouse system of claim 10 , wherein the first alcohol is methanol, ethanol, propanol, butanol, or mixtures thereof.

12 . The greenhouse system of claim 10 , wherein the silane has a structure represented by a formula:

wherein each of R 1a , R 1b , and R 1c are independently selected from hydrogen, halogen, hydroxyl, C1-C12 alkyl, C1-C12 alkoxy, phenyl, —O-phenyl; and
wherein R 2 is selected from substituted C1-C60 alkyl, substituted C1-C60 alkylamine, substituted C1-C60 alkenyl, substituted C3-C60 cycloalkyl, or substituted C3-C60 cycloalkenyl, substituted C3-C60 aryl.

13 . The greenhouse system of claim 10 , wherein the silane is 1,3-divinyltetramethyldisiloxane, 1,3-diphenyltetramethyldisiloxane, 3-aminopropyltrimethoxysilane, 3-aminopropylmethyldiethoxysilane, i-butyltriethoxysilane, i-butyltrimethoxysilane, i-propyltriethoxysilane, i-propyltrimethoxysilane, N-beta (aminoethyl) γ-aminopropyltrimethoxysilane, N-beta (aminoethyl) γ-aminopropylmethyldimethoxysilane, n-octadecyltrimethoxysilane, N-phenyl-γ-aminopropyltrimethoxysilane, n-butyltrimethoxysilane, n-propyltriethoxysilane, n-propyltrimethoxysilane, n-hexadecyltrimethoxysilane, o-methylphenyltrimethoxysilane, p-methylphenyltrimethoxysilane, tert-butyldimethylchlorosilane, a-chloroethyltrichlorosilane, beta-(3,4-epoxycyclohexyl) ethyltrimethoxysilane, beta-(3,4-epoxycyclohexyl) ethyltrimethoxysilane, beta-chloroethyltrichlorosilane, beta-(2-aminoethyl) aminopropyltrimethoxysilane, γ-(2-aminoethyl) aminopropylmethyldimethoxysilane, γ-anilinopropyltrimethoxysilane,γ-aminopropyltriethoxysilane, γ-aminopropyltrimethoxysilane, γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropylmethyldiethoxysilane, γ-glycidoxypropylmethyldimethoxysilane, γ-chloropropyltrimethoxysilane, γ-chloropropylmethyldimethoxysilane, γ-methacryloxypropyltrimethoxysilane, γ-mercaptopropyltrimethoxysilane, aminopropyltriethoxysilane, aminopropyltrimethoxysilane, allyldimethylchlorosilane, allyltriethoxysilane, allylphenyldichlorosilane, ethyltriethoxysilane, ethyltrichlorosilane, ethyltrimethoxysilane, octadecyltriethoxysilane, octadecyltrimethoxysilane, octyltrimethoxysilane, chloromethyldimethylchlorosilane, diethylaminopropyltrimethoxysilane, diethyldiethoxysilane, diethyldimethoxysilane, dioctyl aminopropyltrimethoxysilane, diphenyldiethoxysilane, diphenyldichlorosilane, diphenyldimethoxysilane, dibutylaminopropyldimethoxysilane, dibutylaminopropyltrimethoxysilane, dibutylaminopropylmonomethoxysilane, dipropylaminopropyltrimethoxysilane, dihexyldiethoxysilane, dihexyldimethoxysilane, dimethylaminophenyltriethoxysilane, dimethylethoxysilane, dimethyldiethoxysilane, dimethyldichlorosilane, dimethyldimethoxysilane, decyltriethoxysilane, decyltrimethoxysilane, dodecyltrimethoxysilane, triethylethoxysilane, triethylchlorosilane, triethylmethoxysilane, triorganosilyl acrylate, tripropylethoxysilane, tripropylchlorosilane, tripropylmethoxysilane, trihexylethoxysilane, trihexylchlorosilane, trimethylethoxysilane, trimethylchlorosilane, trimethylsilane, trimethylsilylmercaptan, trimethylmethoxysilane, trimethoxysilyl-γ-propylphenylamine, trimethoxysilyl-γ-propylbenzylamine, naphthyltriethoxysilane, naphthyltrimethoxysilane, nonyltriethoxysilane, hydroxypropyltrimethoxysilane, vinyldimethylacetoxysilane, vinyltriacetoxysilane, vinyltriethoxysilane, vinyltrichlorosilane, vinyltris (beta-methoxyethoxy) silane, vinyltrimethoxysilane, phenyltriethoxysilane, phenyltrichlorosilane, phenyltrimethoxysilane, butyltriethoxysilane, butyltrimethoxysilane, propyltriethoxysilane, propyltrimethoxysilane, bromomethyldimethylchlorosilane, hexamethyldisiloxane, hexyltrimethoxysilane, benzyldimethylchlorosilane, pentyltrimethoxysilane, methacryloxyethyldimethyl (3-trimethoxysilylpropyl) ammonium chloride, methyltriethoxysilane, methyltrichlorosilane, methyltrimethoxysilane, methylphenyldimethoxysilane, monobutylaminopropyltrimethoxysilane, or mixtures thereof.

14 . The greenhouse system of claim 10 , wherein the silane is 3-methacryloxypropyltrimethoxysilane, vinyltrimethoxysilane,(3-mercaptopropyl)trimethoxysilane, 3-(methacryloyloxy)propyldimethylethoxysilane, 3-(methacryloyloxy)propenyltrimethoxysilane, and 3-(methacryloyloxy)propyltrimethoxysilane, or mixtures thereof.

15 . The greenhouse system of claim 10 , wherein the heating comprises bringing the surface-modifying phosphor reaction mixture to a temperature of 50° C. to 70° C. for a period of 30 minutes to 3 hours.

16 . The greenhouse system of claim 10 , further comprising micronizing, grinding, or combinations the isolated surface-modified phosphor material to provide isolated surface-modified phosphor material with a particle size of 1 nm to 1000 nm.

17 . The greenhouse system of claim 16 , wherein the particle size of the isolated surface-modified phosphor material is 6 nm to 400 nm.

18 . The greenhouse system of claim 10 , wherein the surface-modifying solution has a pH of 2 to 5.

19 . The greenhouse system of c

Assignees

• Univ Texas

Inventors

• Chen Wei
• Johnson Omar Darrel
• Sahi Sunil

Classifications

• C09K11/02

  Use of particular materials as binders, particle coatings or suspension media therefor · CPC title

• A01G9/1438 Primary

  Covering materials therefor; Materials for protective coverings used for soil and plants, e.g. films, canopies, tunnels or cloches · CPC title

• C01B17/42

  Sulfides or polysulfides of magnesium, calcium, strontium, or barium · CPC title

• B82Y40/00

  Manufacture or treatment of nanostructures · CPC title

• Y02A40/25

  Greenhouse technology, e.g. cooling systems therefor · CPC title