CN106467742A - A kind of preparation method of quick response zinc sulfide luminescent powder - Google Patents
A kind of preparation method of quick response zinc sulfide luminescent powder Download PDFInfo
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- CN106467742A CN106467742A CN201610735502.8A CN201610735502A CN106467742A CN 106467742 A CN106467742 A CN 106467742A CN 201610735502 A CN201610735502 A CN 201610735502A CN 106467742 A CN106467742 A CN 106467742A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/87—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing platina group metals
- C09K11/873—Chalcogenides
- C09K11/876—Chalcogenides with zinc or cadmium
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
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Abstract
The invention discloses a kind of preparation method of quick response zinc sulfide luminescent powder, the high-purity technical product zinc sulphide powder being more than 99.9% using purity is base stock, including premix, roasting, sorting, soaking and washing, peplos process, drying, sub-sieve, packaging, finished product quick response zinc sulfide luminescent powder, more than 99.9% high-purity industrial goods zinc sulphide powder is reached as base material with purity, product luminosity is high, and the capability of fast response of luminescent powder is high, and original intensity is high.
Description
Technical field
The invention belongs to chemical technology field, it is related to a kind of preparation method of quick response zinc sulfide luminescent powder.This technique
Method with purity >=99.9%, particle diameter for 2-10 micron crystal zinc sulphide powder as raw material, add copper, platinum ion as altogether
Same activator, prepares quick response zinc sulfide luminescent powder.
Background technology
The invention of the zinc sulfide photosensitive luminescent material history of existing nearly more than 100 years so far.Abroad, law-making stipulation is in phase
Close and must use noctilucence photosensitive products on facility and product, some special industries special dimension to photic zinc sulfide luminous material
Material is widely applied, and particularly needs a kind of luminescent material of quick response in some detections, night mark etc..
In luminous activating system field, quick response luminescent powder is used to detect argosy lock pressure sump inner waterproofing paint surface
Hot spot or leakage point, it may also be used for multiple jobs that requires special skills field such as highway, subway, radioprotective Leak Detection, such
The distinguishing feature of luminescent powder is exactly to light source fast response time, after short irradiation, responds rapidly to, quickly lights, to twilight sunset
Time requirement is not high, may only have the twilight sunset of 10-30 second, but original intensity is higher, sends human eye within a short period of time visible
Light
Existing various embedded photoluminescent material is compared more each advantageous, when rare earth aluminate luminescent material has the twilight sunset of overlength
Between, 0.3 mcd/m2When reach more than 480min, but due to its poor water resistance, extinction lights slow slowly, is afraid of contact with metal, become
This high defect is it is impossible to meet above-mentioned requirements.Sulfuration zinc-type luminescent material, with respect to rare earth aluminate long after glow luminous material, has
There is absorbing time short, original intensity is higher, sensitive to light source, response speed is very fast.
Content of the invention
The technical problem to be solved in the present invention is for not enough above, provides a kind of system of quick response zinc sulfide luminescent powder
Preparation Method, is base stock using high-purity industrial goods zinc sulphide powder, with a small amount of copper ion and platinum ion as coactivator, with
CaCl2It is prepared from for cosolvent with CaS.
Realize following main purpose：
1st, improve the response speed of sulfuration zinc-type luminescent material.
2nd, photosensitive luminous faster, in very short time, irradiate through special light sources and can produce twilight sunset.
3rd, method is simple, and product quality is improved.
4th, the more environmentally-friendly energy-conservation of product.
For solving problem above, the technical solution used in the present invention is：A kind of preparation of quick response zinc sulfide luminescent powder
The high-purity technical product zinc sulphide powder that method is more than 99.9% using purity is base stock, and its process includes following step
Suddenly：
（1）Premix：In hammer mill, it is separately added into high-purity industrial goods zinc sulphide powder, CuSO4Solution, PtCl4Solution, CaCl2、
CaS powder, thiourea and deionized water, mixing, carry out sledge mill, after mix homogeneously, prepared furnace charge；
（2）Roasting：The furnace charge of mix homogeneously, proceeds to and adds a cover in silica crucible and seal, and places in high-temperature roasting furnace, temperature control
Make between 800-1050 DEG C, roasting 2-3h；After the completion of roasting, naturally cool to room temperature, come out of the stove；
（3）Sorting：The block that cooling is come out of the stove, after crushing, under ultraviolet light, carries out selected, light-emitting materials is selected；
（4）Soaking and washing：Powder after will be selected, adds the NaCl solution that concentration is 2% to be soaked, after soaking 2-3 hour,
Proceed to sucking filtration in filter pocket, after sucking filtration, then cleaned 3-4 time with pure water, obtain pure slurry；
（5）Peplos are processed：Above-mentioned slurry adds the high mode potassium silicate solution that concentration is 10-30%, after soaking 5-7 hour, then turns
Enter in filter pocket, carry out sucking filtration；
（6）Drying, sub-sieve, packaging：After sucking filtration, put in baking oven, temperature control at 120-150 DEG C, dry 10-15 hour after,
Through sub-sieve, sieved, core out particle diameter be 10-25mm luminescent powder, more packaged after, finished product quick response sulfur
Change zinc luminescent powder.
Described high-purity technical product zinc sulphide powder, its addition is 100-120kg.
Described CuSO4Solution, its concentration is 200g-230g/1L water, and addition is 5L-15L.
Described PtCl4Solution, its concentration is 1.0-2.0g/100ml water, and addition is 100-110ml.
Described CaCl2, analyze pure, its addition is 1-2kg.
Described CaS powder, analysis is pure, and its addition is 3-4kg.
Described thiourea, analysis is pure, and its addition is 4-6kg.
Described deionized water addition is 15-20L.
Described concentration is 2% NaCl solution, and its addition is 50L-90L.
The present invention adopts above technical scheme, compared with prior art, has advantages below：
1st, more than 99.9% high-purity industrial goods zinc sulphide powder is reached as base material with purity, reduce foreign ion to luminescent properties
Impact, improves product luminosity.
2nd, the first activator is Cu, and the second activator is Pt ion, and the two forms coactivator, enhances the short of material
When store up the light ability time, improve the capability of fast response of luminescent powder.
3rd, cosolvent is CaCl2And CaS, play reduction substrate crystallization temperature and charge compensation effect, to promote Pt ion
Form the centre of luminescence, improve original intensity and response speed.
4th, add thiourea, raw material is played with reduction protection effect, prevents ZnS in sintering process oxidized, improve and produce
Product yield.
5th, carry out sorting under uviol lamp, improve product qualification rate.
6th, carry out peplos process, make powder surface wrap potassium silicate, to improve the stability of the ultraviolet resistance irradiation of material.
Present invention process method, compared with traditional process, solves cumbersome, and production cost is big, and price is held high
Expensive, the proportion of goods damageds are big, and emission spectrum is longer, the technical problem of original intensity and response time length, its product center particle diameter producing
Reach between 10-20 μm.
Specific embodiment
Embodiment 1, a kind of preparation method of quick response zinc sulfide luminescent powder, comprise the following steps：
（1）Premix：In hammer mill, it is separately added into high-purity technical product zinc sulfide 120kg, concentration is 200g/1000ml's
CuSO4Solution 5L, concentration are the PtCl of 2.0g/100ml4Solution 110 ml, CaCl22000g, CaS 4000g and thiourea
6000g, carries out sledge mill, after mix homogeneously, prepared furnace charge；
（2）Roasting：The furnace charge of mix homogeneously, proceeds to and adds a cover in silica crucible and seal, and places in high-temperature roasting furnace, temperature control
Make at 800 DEG C, roasting 2h；After the completion of roasting, naturally cool to room temperature, come out of the stove；
（3）Sorting：The powder that cooling is come out of the stove, after crushing, under ultraviolet light, carries out selected, light-emitting materials is selected；
（4）Surface treatment：Powder after will be selected, 15 liters of NaCl solution adding concentration to be 2%, soaked, soaked 2 hours
Afterwards, proceed to sucking filtration in filter pocket, after sucking filtration, then cleaned with pure water three times, put in baking oven, temperature control, at 110 DEG C, dries 11 little
When；
（5）Peplos are processed：By the powder after drying, add 7 liters of the potassium silicate solution that concentration is 30%, after soaking 7 hours, then turn
Enter in filter pocket, carry out sucking filtration；
（6）Drying, sub-sieve, packaging：After sucking filtration, put in baking oven, at 150 DEG C, after drying 10 hours, warp divides a sample to temperature control
Sieve, is sieved, and core out particle diameter is 15-30 μm of luminescent powder, more packaged after, finished product quick response zinc sulfide is sent out
Light powder.
It is as follows that product obtained by the present embodiment passes through detection technique index：
Embodiment 2, a kind of preparation method of quick response zinc sulfide luminescent powder, comprise the following steps：
（1）Premix：In hammer mill, it is separately added into high-purity technical product zinc sulfide 120kg, concentration is 200g/1000ml's
CuSO4Solution 15L, concentration are the PtCl of 2.0g/100ml4Solution 110 ml, CaCl21.5kg, CaS 3.0kg and thiourea
5.0kg, carries out sledge mill, after mix homogeneously, prepared furnace charge；
（2）Roasting：The furnace charge of mix homogeneously, proceeds to and adds a cover in silica crucible and seal, and places in high-temperature roasting furnace, temperature control
Make at 950 DEG C, roasting 2.5h；After the completion of roasting, naturally cool to room temperature, come out of the stove；
（3）Sorting：The powder that cooling is come out of the stove, after crushing, under ultraviolet light, carries out selected, light-emitting materials is selected；
（4）Surface treatment：Powder after will be selected, 15 liters of NaCl solution adding concentration to be 2%, soaked, soaked 2 hours
Afterwards, proceed to sucking filtration in filter pocket, after sucking filtration, then cleaned with pure water three times, put in baking oven, temperature control, at 110 DEG C, dries 11 little
When；
（5）Peplos are processed：By the powder after drying, add 7 liters of the potassium silicate solution that concentration is 30%, after soaking 7 hours, then turn
Enter in filter pocket, carry out sucking filtration；
（6）Drying, sub-sieve, packaging：After sucking filtration, put in baking oven, at 150 DEG C, after drying 10 hours, warp divides a sample to temperature control
Sieve, is sieved, and core out particle diameter is 15-30 μm of luminescent powder, more packaged after, finished product quick response zinc sulfide is sent out
Light powder.
It is as follows that product obtained by the present embodiment passes through detection technique index：
Embodiment 3, a kind of preparation method of quick response zinc sulfide luminescent powder, comprise the following steps：
（1）Premix：In hammer mill, it is separately added into high-purity technical product zinc sulfide 120kg, concentration is the CuSO of 200g/1L4Molten
Liquid 7.5L, concentration are the PtCl of 2.0g/100ml4Solution 110 ml, CaCl22.0kg, CaS 4.0kg and thiourea 6.0kg, is carried out
Sledge mill, after mix homogeneously, prepared furnace charge；
（2）Roasting：The furnace charge of mix homogeneously, proceeds to and adds a cover in silica crucible and seal, and places in high-temperature roasting furnace, temperature control
Make at 1000 DEG C, roasting 3h；After the completion of roasting, naturally cool to room temperature, come out of the stove；
（3）Sorting：The powder that cooling is come out of the stove, after crushing, under ultraviolet light, carries out selected, light-emitting materials is selected；
（4）Surface treatment：Powder after will be selected, 15 liters of NaCl solution adding concentration to be 2%, soaked, soaked 2 hours
Afterwards, proceed to sucking filtration in filter pocket, after sucking filtration, then cleaned with pure water three times, put in baking oven, temperature control, at 110 DEG C, dries 11 little
When；
（5）Peplos are processed：By the powder after drying, add 7 liters of the potassium silicate solution that concentration is 30%, after soaking 7 hours, then turn
Enter in filter pocket, carry out sucking filtration；
（6）Drying, sub-sieve, packaging：After sucking filtration, put in baking oven, at 150 DEG C, after drying 10 hours, warp divides a sample to temperature control
Sieve, is sieved, and core out particle diameter is 15-30 μm of luminescent powder, more packaged after, finished product quick response zinc sulfide is sent out
Light powder.
It is as follows that product obtained by the present embodiment passes through detection technique index：
Embodiment 4, a kind of preparation method of quick response zinc sulfide luminescent powder, comprise the following steps：
（1）Premix：In hammer mill, it is separately added into high-purity technical product zinc sulfide 120kg, concentration is 200g/1000ml's
CuSO4Solution 10L, concentration are the PtCl of 2.0g/100ml4Solution 110 ml, CaCl22.0kg, CaS 4.0kg and thiourea
6.0kg, carries out sledge mill, after mix homogeneously, prepared furnace charge；
（2）Roasting：The furnace charge of mix homogeneously, proceeds to and adds a cover in silica crucible and seal, and places in high-temperature roasting furnace, temperature control
Make at 1050 DEG C, roasting 3h；After the completion of roasting, naturally cool to room temperature, come out of the stove；
（3）Sorting：The powder that cooling is come out of the stove, after crushing, under ultraviolet light, carries out selected, light-emitting materials is selected；
（4）Surface treatment：Powder after will be selected, 15 liters of NaCl solution adding concentration to be 2%, soaked, soaked 2 hours
Afterwards, proceed to sucking filtration in filter pocket, after sucking filtration, then cleaned with pure water three times, put in baking oven, temperature control, at 110 DEG C, dries 11 little
When；
（5）Peplos are processed：By the powder after drying, add 7 liters of the potassium silicate solution that concentration is 30%, after soaking 7 hours, then turn
Enter in filter pocket, carry out sucking filtration；
（6）Drying, sub-sieve, packaging：After sucking filtration, put in baking oven, at 150 DEG C, after drying 10 hours, warp divides a sample to temperature control
Sieve, is sieved, and core out particle diameter is 15-30 μm of luminescent powder, more packaged after, finished product quick response zinc sulfide is sent out
Light powder.
It is as follows that product obtained by the present embodiment passes through detection technique index：
Embodiment 5, a kind of preparation method of quick response zinc sulfide luminescent powder, comprise the following steps：
（1）Premix：In hammer mill, it is separately added into high-purity technical product zinc sulfide 120kg, concentration is the CuSO of 200g/1L4Molten
Liquid 12L, concentration are the PtCl of 2.0g/100ml4Solution 110 ml, CaCl22.0kg, CaS 4.0kg and thiourea 6.0kg, is carried out
Sledge mill, after mix homogeneously, prepared furnace charge；
（2）Roasting：The furnace charge of mix homogeneously, proceeds to and adds a cover in silica crucible and seal, and places in high-temperature roasting furnace, temperature control
Make at 1050 DEG C, roasting 3h；After the completion of roasting, naturally cool to room temperature, come out of the stove；
（3）Sorting：The powder that cooling is come out of the stove, after crushing, under ultraviolet light, carries out selected, light-emitting materials is selected；
（4）Surface treatment：Powder after will be selected, 15 liters of NaCl solution adding concentration to be 2%, soaked, soaked 2 hours
Afterwards, proceed to sucking filtration in filter pocket, after sucking filtration, then cleaned with pure water three times, put in baking oven, temperature control, at 110 DEG C, dries 11 little
When；
（5）Peplos are processed：By the powder after drying, add 7 liters of the potassium silicate solution that concentration is 30%, after soaking 7 hours, then turn
Enter in filter pocket, carry out sucking filtration；
（6）Drying, sub-sieve, packaging：After sucking filtration, put in baking oven, at 150 DEG C, after drying 10 hours, warp divides a sample to temperature control
Sieve, is sieved, and core out particle diameter is 15-30 μm of luminescent powder, more packaged after, finished product quick response zinc sulfide is sent out
Light powder.
It is as follows that product obtained by the present embodiment passes through detection technique index：
Embodiment 6, a kind of preparation method of quick response zinc sulfide luminescent powder, comprise the following steps：
（1）Premix：In hammer mill, it is separately added into high-purity technical product zinc sulfide 120kg, concentration is the CuSO of 200g/1L4Molten
Liquid 20L, concentration are the PtCl of 2.0g/100ml4Solution 110 ml, CaCl22.0kg, CaS 4.0kg and thiourea 6.0kg, is carried out
Sledge mill, after mix homogeneously, prepared furnace charge；
（2）Roasting：The furnace charge of mix homogeneously, proceeds to and adds a cover in silica crucible and seal, and places in high-temperature roasting furnace, temperature control
Make at 1050 DEG C, roasting 3h；After the completion of roasting, naturally cool to room temperature, come out of the stove；
（3）Sorting：The powder that cooling is come out of the stove, after crushing, under ultraviolet light, carries out selected, light-emitting materials is selected；
（4）Surface treatment：Powder after will be selected, 15 liters of NaCl solution adding concentration to be 2%, soaked, soaked 2 hours
Afterwards, proceed to sucking filtration in filter pocket, after sucking filtration, then cleaned with pure water three times, put in baking oven, temperature control, at 110 DEG C, dries 11 little
When；
（5）Peplos are processed：By the powder after drying, add 7 liters of the potassium silicate solution that concentration is 30%, after soaking 7 hours, then turn
Enter in filter pocket, carry out sucking filtration；
（6）Drying, sub-sieve, packaging：After sucking filtration, put in baking oven, at 150 DEG C, after drying 10 hours, warp divides a sample to temperature control
Sieve, is sieved, and core out particle diameter is 15-30 μm of luminescent powder, more packaged after, finished product quick response zinc sulfide is sent out
Light powder.
It is as follows that product obtained by the present embodiment passes through detection technique index：
Above implement in embodiment no any to the manufacturer of catalyst, polymerization inhibitor and surfactant and product special will
Ask, domestic more manufacturer produces.
Metallocene catalyst provides producer to have：The graceful science and technology of FOX（Beijing）Company limited, Hangzhou marine origin Chemical Co., Ltd.,
Shanghai cyclopentadienyl chemical reagent company limited, prosperous Science and Technology Ltd. of Beijing state side, Langfang Hao Ke development in science and technology company limited, orchid
Zhou Tenghua Chemical Industry Science Co., Ltd etc. is all provided with.
Polymerization inhibitor provides producer：The easy Chemical Co., Ltd. of upper sea light, Changzhou Yu Rong Chemical Co., Ltd., the permanent association in Henan
Heavy chemicals sale company limited, Rui Kai trade Co., Ltd of Zhuhai City, Hangzhou Zhuo Jing Chemical Co., Ltd., the happy nation in Changzhou are combined
Materials Co., Ltd, Qingdao Jie get Jia new material Science and Technology Ltd., Dongguan City Long Hai new material Science and Technology Ltd. etc..
Surfactant provides producer：Shanghai Xue Jie Chemical Co., Ltd., Shanghai Jinshan longitude and latitude Chemical Co., Ltd., Shanghai
The domestic more manufacturing enterprises such as Su Ke Chemical Co., Ltd., Zibo Hai Jie Chemical Co., Ltd..
By above invention as can be seen that increase with activator ions such as Cu, Pt, quick response luminescent powder luminous
Original intensity also increases, but original intensity not necessarily unrestrictedly increases, and occurs " sudden after increasing to some degree
Go out " phenomenon, work as active ions（It is mainly copper ion in the present invention）Mole ratio >=2% of amount and the amount of zinc sulfide mole when,
" quenching " phenomenon can occur.
Weighing quick response luminescent powder technical specification mainly has：Absorbing time and original intensity, equally in the extinction of 1-2 second
In time, original intensity is higher, illustrates that quick response luminescent powder quick response effect is better, can meet luminous activating system field
Requirement.
Through analysis it is believed that：
1st, more than 99.9% high-purity industrial goods zinc sulphide powder is reached as base material with purity, reduce foreign ion to luminescent properties
Impact, improves product luminosity.
2nd, Cu, Pt form coactivator, enhance the light ability time of storage in short-term of material, improve the quick of luminescent powder
Responding ability.
3、CaCl2Reduce substrate crystallization temperature and charge compensation effect with CaS, promote Pt ion to form the centre of luminescence, carry
High initial brightness and response speed.
4th, add thiourea, raw material is played with reduction protection effect it is therefore prevented that ZnS is oxidized in sintering process, improve
Product yield.
5th, carry out sorting under uviol lamp, improve the qualification rate of product.
6th, peplos are processed makes powder surface wrap potassium silicate, improves the stability of the ultraviolet resistance irradiation of material.
The raw material being related in above example is commercially available prod in the market, unless specifically stated otherwise, involved
And the percentage ratio arriving is mass percent.
Above-mentioned specific embodiment is exemplary, is in order that those skilled in the art can be better understood from this
Content of the invention, should not be understood as limiting the scope of the invention, as long as according to changing that technical solution of the present invention is made
Enter, each fall within protection scope of the present invention.
Claims (9)
1. a kind of preparation method of quick response zinc sulfide luminescent powder is it is characterised in that comprise the following steps：
（1）Premix：In hammer mill, it is separately added into high-purity industrial goods zinc sulphide powder, CuSO4Solution, PtCl4Solution, CaCl2、
CaS powder, thiourea and deionized water, mixing, carry out sledge mill, after mix homogeneously, prepared furnace charge；
（2）Roasting：The furnace charge of mix homogeneously, proceeds to and adds a cover in silica crucible and seal, and places in high-temperature roasting furnace, temperature control
Make between 800-1050 DEG C, roasting 2-3h；After the completion of roasting, naturally cool to room temperature, come out of the stove；
（3）Sorting：The block that cooling is come out of the stove, after crushing, under ultraviolet light, carries out selected, light-emitting materials is selected；
（4）Soaking and washing：Powder after will be selected, adds the NaCl solution that concentration is 2% to be soaked, after soaking 2-3 hour,
Proceed to sucking filtration in filter pocket, after sucking filtration, then cleaned 3-4 time with pure water, obtain pure slurry；
（5）Peplos are processed：Above-mentioned slurry adds the high mode potassium silicate solution that concentration is 10-30%, after soaking 5-7 hour, then turns
Enter in filter pocket, carry out sucking filtration；
（6）Drying, sub-sieve, packaging：After sucking filtration, put in baking oven, temperature control at 120-150 DEG C, dry 10-15 hour after,
Through sub-sieve, sieved, core out particle diameter be 10-25mm luminescent powder, more packaged after, finished product quick response sulfur
Change zinc luminescent powder.
2. as claimed in claim 1 a kind of preparation method of quick response zinc sulfide luminescent powder it is characterised in that：High-purity work
Industry product zinc sulphide powder addition is 100-120kg.
3. as claimed in claim 1 a kind of preparation method of quick response zinc sulfide luminescent powder it is characterised in that：Described
CuSO4Solution, its concentration is 200g-230g/1L water, and addition is 5L-15L.
4. as claimed in claim 1 a kind of preparation method of quick response zinc sulfide luminescent powder it is characterised in that：Described
PtCl4Solution, its concentration is 1.0-2.0g/100ml water, and addition is 100-110ml.
5. as claimed in claim 1 a kind of preparation method of quick response zinc sulfide luminescent powder it is characterised in that：Described
CaCl2, analyze pure, its addition is 1-2kg.
6. as claimed in claim 1 a kind of preparation method of quick response zinc sulfide luminescent powder it is characterised in that：Described
CaS powder, analysis is pure, and its addition is 3-4kg.
7. as claimed in claim 1 a kind of preparation method of quick response zinc sulfide luminescent powder it is characterised in that：Described sulfur
Urea, analysis is pure, and its addition is 4-6kg.
8. as claimed in claim 1 a kind of preparation method of quick response zinc sulfide luminescent powder it is characterised in that：Described go from
Sub- water addition is 15-20L.
9. as claimed in claim 1 a kind of preparation method of quick response zinc sulfide luminescent powder it is characterised in that：Described is dense
Spend the NaCl solution for 2%, its addition is 50L-90L.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101402862A (en) * | 2008-11-10 | 2009-04-08 | 王强 | Producing process for zinc sulfide long-afterglow luminescent powder |
| CN101735808A (en) * | 2009-12-22 | 2010-06-16 | 王强 | Method for preparing zinc sulfide aluminium: copper, europium and erbium overlength afterglow luminescent powder |
| CN103194227A (en) * | 2013-04-01 | 2013-07-10 | 潍坊大耀新材料有限公司 | Method for preparing red long-afterglow luminescent powder |
-
2016
- 2016-08-29 CN CN201610735502.8A patent/CN106467742A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101402862A (en) * | 2008-11-10 | 2009-04-08 | 王强 | Producing process for zinc sulfide long-afterglow luminescent powder |
| CN101735808A (en) * | 2009-12-22 | 2010-06-16 | 王强 | Method for preparing zinc sulfide aluminium: copper, europium and erbium overlength afterglow luminescent powder |
| CN103194227A (en) * | 2013-04-01 | 2013-07-10 | 潍坊大耀新材料有限公司 | Method for preparing red long-afterglow luminescent powder |
Non-Patent Citations (1)
| Title |
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| PS KANARI: "PHOTOLUMINESCENCE IN ZnS (Cu, Pt) PHOSPHORS", 《 INDIAN JOURNAL OF PURE AND APPLIED PHYSICS》 * |
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Application publication date: 20170301 |