CN1039259A

CN1039259A - A kind of luminescent powder

Info

Publication number: CN1039259A
Application number: CN 88105093
Authority: CN
Inventors: 李光大
Original assignee: HEPING MUNICIPAL ENGINEERING Co SHENYANG
Current assignee: HEPING MUNICIPAL ENGINEERING Co SHENYANG
Priority date: 1988-07-14
Filing date: 1988-07-14
Publication date: 1990-01-31

Abstract

A kind of luminescent powder is made by multiple sulfide and activator, has nontoxic, "dead", twilight sunset and can reach the characteristics more than three hours.This kind luminescent powder can be used for aspects such as printing, printing and dyeing, rubber, plastics, instrument, industrial art, decoration, pottery, make goods behind a laser, present the light of colourful transparent in the dark, not only has enjoying value, also has energy-saving effect, in manufacture craft fine arts goods and drawing, more increase effect beautiful in colour, have vast potential for future development to original works.

Description

A kind of luminescent powder

Invention relates to a kind of luminescent powder, and it belongs to chemical field, and its compositing characteristic is: the sulfide with non-toxic and non-radioactive is matrix, adds activator copper, potassium, and sodium, elements such as silver are made.

Existing cold light material has two kinds of phosphorescence and fluorescence, and permanent light material crystal phosphores contains radioactive substance, though fluorescent material does not contain radioelement, its fluorescent lifetime is short, only is 10 ^-5-10 ^-8/ second, be called luminescent material in short-term, generally be used for fluorescent lamp, occasions such as televisor are luminous.

The objective of the invention is to overcome above-mentioned shortcoming of the prior art, a kind of "dead" steady persistence luminous colour powder is provided.

The principle of luminosity of luminescent powder of the present invention is as follows: during when irradiation (using ultraviolet radiation usually) or with some material of electron-bombardment, can be luminous, and these materials are fluorescence or phosphor material.Difference between fluorescent material and the phosphor material is that fluorescent material only gives bright dipping at duration of exciting with in the moment after exciting, and phosphor material has persistence characteristic, and the twilight sunset of some phosphorescent substance can continue many hours.But it is very difficult that fluorescent material and phosphor material make a distinction with strict definition, in " the fluorescent material trade mark standard " that state announces the two is referred to as fluorescent material still, and luminescent powder of the present invention is not for there being putting property long persistence luminescent powder.

Many material requires make it become twinkler with activator, and the existence of laser agent is indispensable to twinkler.In the phosphorescent substance that the laser agent is arranged, activator ion can have equivalent number mutually with host's crystalline ion, activator ion occupies host's ionic position, if activator ion is too big, or valence mumber is not right, and replacement is very difficult, for the different of size and valence mumber are described, can introducing space or space, perhaps can add have the other element (activator) that compensates valence mumber with in and valence mumber.Luminescent powder of the present invention just is added with activator.So when transition of electron related excessively two when can the utmost point being the energy level of activator atom, the process that activates and launch can excite with emission process with resonance radiation in the gas and compare, and host's crystal is depended in the position of energy level, in addition, concerning activator, host's crystal mainly has been the effect of dilution.

The prescription of luminescent powder of the present invention is:

Red:

Barium sulphide: 50-60%; Magnesium sulfide: 42-37%;

Surplus is Trilithium phosphate and cupric nitrate.

Blue:

Sulfurated lime: 60-65%; Sodium sulfate: 10-2%; Vitriolate of tartar 8-3%;

Strontium sulfide 5-15%; Surplus is sodium-chlor and Silver Nitrate.

Purple:

Sulfurated lime: 60-66%; Magnesium sulfide: 23-29%; Sodium sulphite: 13-4%;

Surplus is a strontium nitrate.

Green:

Sulfurated lime: 55-60%; Sodium sulfate: 15-5%;

Surplus is barium sulphide and cupric nitrate.

Yellow:

Barium sulphide: 50-60%; Magnesium sulfide: 47-33%;

Surplus is Trilithium phosphate and saltpetre.

The complete processing of luminescent powder of the present invention is: batch mixing at first, and calcination in electric furnace then, calcination temperature is 1100 ℃-1350 ℃, the calcination time is 30-60 minute, afterwards, select impurity, pass through ball milling again, washing through picking, drying, process such as sieve just can become finished product after the packing.

Illustrate the using method of luminescent powder:

One, clock and watch, instrument, the dial plate class: be dissolved in two parts of acetone with poly-methyl-prop (alkene) acid resin (synthetic glass), a toluene in the mixture of a acetic acid the eleventh of the twelve Earthly Branches fat, is made binding agent, this luminescent powder is added blending agents on demand after, can apply.

Two and various binding agent, as varnish, transparent resin, printing glue, peach gum, glue, mediations such as paste are applied in plastic switch, glassware, dance hall finishing etc.

Three, rubber item can add when mixing, and synthetic glass can add in substance, and polymerization then can add thermoplastic shaping behind the luminescent powder of the present invention in the vinyon.

Compare with existing fluorescent material, luminous colour powder of the present invention is nontoxic, pollution-free, "dead", reach time of persistence more than three hours, can replace existing fluorescent material in short-term, be applied to printing, printing and dyeing, rubber, plastics, instrument, industrial art is decorateed aspects such as pottery, it both can make powdered, also can make the coating of noctilucence slurry with various tackiness agents.

Most preferred embodiment: redness:

Composition: barium sulphide magnesium sulfide Trilithium phosphate and cupric nitrate

Content %:5 40 5

The basket look:

Composition: sulfurated lime sodium sulfate vitriolate of tartar strontium sulfide magnesium sulfide sodium-chlor and Silver Nitrate

Content %:63 55 10 10 7

Purple:

Composition: sulfurated lime magnesium sulfide sodium sulphite strontium nitrate

Content %:63 26 10 1

Green:

Composition: sulfurated lime vitriolate of tartar sodium sulfate barium sulphide and cupric nitrate

Content %:55 10 10 25

Yellow:

Composition: barium sulphide magnesium sulfide aluminum phosphate and saltpetre

Content %:55 40 5

Claims

1, a kind of luminescent powder, its characteristics are that the composition of shades of colour luminescent powder and content are:

A, redness:

Barium sulphide 50--60%, magnesium sulfide 42--37%, surplus is Trilithium phosphate and cupric nitrate;

B, the basket look:

Sulfurated lime 60--65%, Strontium Sulphate 10--2%, vitriolate of tartar: 8--3%, strontium sulfide: 8--12%, surplus is sodium-chlor and Silver Nitrate;

C, purple:

Sulfurated lime 60--66%, magnesium sulfide 23--29%, sodium sulphite 13--4%, surplus is a strontium nitrate;

D, green:

Sulfurated lime 55--60%, sodium sulfate 15--5%, vitriolate of tartar 5--15%, surplus is barium sulphide and cupric nitrate;

E, yellow:

Barium sulphide 50--60%, magnesium sulfide 47--33%,

Surplus is Trilithium phosphate and saltpetre;

2,, it is characterized in that the optimum content of various compositions is according to the luminescent powder of claim 1:

Red:

Barium sulphide 55%, magnesium sulfide 40%, Trilithium phosphate and cupric nitrate 5%;

Blue:

Sulfurated lime 63%, sodium sulfate 5%, vitriolate of tartar 5%, strontium sulfide 10%, magnesium sulfide 10%,

Sodium-chlor 63%, magnesium sulfide 26%, sodium sulphite 10%, strontium nitrate 1%;

Green:

Sulfurated lime 55%, potassium sulphide 10%, sodium sulfate 10%, barium sulphide and cupric nitrate 25%;

Yellow:

Barium sulphide 55%, magnesium sulfide 40%, Trilithium phosphate and saltpetre 5%.