CN109822887A - A kind of plastic scintillant and preparation method thereof - Google Patents
A kind of plastic scintillant and preparation method thereof Download PDFInfo
- Publication number
- CN109822887A CN109822887A CN201910151672.5A CN201910151672A CN109822887A CN 109822887 A CN109822887 A CN 109822887A CN 201910151672 A CN201910151672 A CN 201910151672A CN 109822887 A CN109822887 A CN 109822887A
- Authority
- CN
- China
- Prior art keywords
- luminescent substance
- preparation
- plastic
- printing
- plastic scintillant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The present invention provides a kind of plastic scintillant and preparation method thereof, which includes: to provide a kind of plastic basis material of light-permeable；First luminescent substance and the second luminescent substance are provided, the plastic basis material, first luminescent substance and second luminescent substance are mixed and are used as raw material；The raw material is heated and is squeezed out, the material after the heating extrusion is as 3D printing consumptive material；Deformation In The Fdm Process 3D printing is carried out using the 3D printing consumptive material, obtains the plastic scintillant.By combining Deformation In The Fdm Process 3D printing technique to manufacture plastic scintillant, the plastic scintillant is set to have the characteristics that low cost, shaping speed is fast and shape is customized, and there is good light output performance.
Description
Technical field
The present invention relates to nuclear detection technology fields, and in particular to a kind of preparation method of plastic scintillant.
Background technique
Plastic scintillant is the common material in nuclear detection field, usually by substrate (also known as solvent), the first shiner
Matter (also known as the first solute or solute) and the second luminescent substance (also known as the second solute or wavelength shift agent) are constituted, Ke Yiyong
Detect α, β, γ, fast neutron, proton, cosmic ray and fission fragment etc., have do not deliquesce, performance stabilization, radiation hardness, flashing
The advantages that die-away time is short.The common preparation method of plastic scintillant has mass polymerization, extrusion molding etc., however bulk polymerization
Preparation method is at high cost, squeezes out rule and tends to the plastic scintillant for being produced into strip.
For this reason, it may be necessary to a kind of new plastic scintillant and preparation method thereof, to solve problems of the prior art.
It is noted that information disclosed in aforementioned background art part is only used for reinforcing understanding background of the invention, because
This it may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Summary of the invention
A primary object of the present invention is to overcome at least one defect of the above-mentioned prior art, provides a kind of cost
Low, shaping speed is fast and customized plastic scintillant of shape and preparation method thereof.
To achieve the goals above, the present invention adopts the following technical scheme:
One aspect of the present invention provides a kind of preparation method of plastic scintillant, comprising:
The plastic basis material of one light-permeable is provided；
The first luminescent substance and the second luminescent substance are provided, by plastic basis material, the first luminescent substance and the second luminescent substance
Mixing is used as raw material；
Raw material is heated and is squeezed out, the material after heating extrusion is as 3D printing consumptive material；
Deformation In The Fdm Process 3D printing is carried out using 3D printing consumptive material, obtains plastic scintillant.
According to embodiment of the present invention, plastic basis material be one kind selected from polystyrene and polyvinyl-toluene or
It is a variety of.
According to embodiment of the present invention, the first luminescent substance is selected from 2,5- diphenyloxazole (PPO), p-
One of triphen (p-TP) and 2- (4- xenyl) -5- phenyl -1,3,4- oxadiazoles (PBD) are a variety of.
According to embodiment of the present invention, the second luminescent substance is selected from Isosorbide-5-Nitrae-two-(2- (5- oxazolyl phenyl base))
(POPOP) and one of p- double-(σ-methyl styrene base) benzene (bis-MSB) or a variety of.
According to embodiment of the present invention, by percentage to the quality, the quality of the first luminescent substance is plastic basis material
The 0.1%~15% of quality, the quality of second luminescent substance are the 0.1%~15% of the first luminescent substance quality.
According to embodiment of the present invention, after processing plastic basis material is powdered, with the first luminescent substance and second
Luminescent substance mixing is used as raw material, wherein the temperature processed is lower than the softening temperature of plastic basis material.
According to embodiment of the present invention, heating squeeze out 150 DEG C~300 DEG C at a temperature of carry out.
According to embodiment of the present invention, Deformation In The Fdm Process 3D printing 170 DEG C~300 DEG C at a temperature of into
Row.
According to embodiment of the present invention, the process for heating extrusion carries out in protective atmosphere, fused deposition at
The process of type 3D printing carries out in protective atmosphere.
Another aspect of the present invention provides a kind of plastic scintillant, and above-mentioned preparation method is used to prepare.
As shown from the above technical solution, the beneficial effects of the present invention are:
The present invention provides a kind of new plastic scintillants and preparation method thereof, by combining Deformation In The Fdm Process 3D printing
Technology (Fused Deposition Modeling, FDM) manufacture plastic scintillant, make the plastic scintillant have low cost, at
Type speed is fast and the customized feature of shape, and has good light output performance, in radiation detection field, neutron detection, core
Medical image imaging and environment measuring etc. have a good application prospect in fields.
Detailed description of the invention
Fig. 1 is the plastic scintillant of embodiment 1 and the charge spectra of EJ-200 model plastic scintillant light output test.
Specific embodiment
The following contents provides different embodiment or example, to enable those skilled in the art's refer to the instruction text can
Implement accordingly.Certainly, these are only example, and not intended to limit is of the invention.The endpoint of disclosed range in the present invention
It is not limited to the accurate range or value with any value, these ranges or value should be understood as including close to these ranges or value
Value.For numberical range, between the endpoint value of each range, between the endpoint value of each range and individual point value, with
And can be individually combined with each other between point value and obtain one or more new numberical ranges, these numberical ranges should be regarded
It is specific open herein.
It is an aspect of the invention to provide a kind of preparation methods of plastic scintillant, this method comprises: providing one can be saturating
The plastic basis material of light；First luminescent substance and the second luminescent substance are provided, plastic basis material, the first luminescent substance and second are shone
Material mixing is as raw material；Raw material is heated and is squeezed out, the material after heating extrusion is as 3D printing consumptive material；Utilize 3D printing consumptive material
Deformation In The Fdm Process 3D printing is carried out, plastic scintillant is obtained.
Wherein, described " plastic scintillant " refers to a kind of material that absorbs and can shine after high energy particle or ray, described
" plastic basis material of light-permeable " refers to that material uses the plastic basis material or matrix of light-permeable, and " first luminescent substance " is also known as
" the first solute " or " solute ", " second luminescent substance " are also known as " the second solute " or " wavelength shift agent " or " displacement agent ",
The emission spectrum of plastic scintillant is consistent with the emission spectrum of the first luminescent substance, and different from the emission spectrum of substrate, when adding
When entering the second luminescent substance, the emission spectrum of plastic scintillant is consistent with the second luminescent substance.
" heating squeezes out " refers to that material is heated to the technique of specific range of temperatures extrusion molding.Specifically, it squeezes out
Molding technique generally refers to material by effect between extruder barrel and screw rod, while by thermoplastification, while by screw rod to being pushed forward
It send, continue through head and the process of various cross section articles or semi-products is made.
" the Deformation In The Fdm Process 3D printing " refers to a kind of three-dimensional increases material manufacturing technology based on fused deposition scheme,
In " Deformation In The Fdm Process " be also known as " molten product stack shaping " (Fused Deposition Modelling, FDM), being specifically will
Raw material heating and melting, while constructing using 3 d modeling software the 3 d structure model of required plastic scintillant, three-dimensional nozzle
Under control of the computer, it according to section profile information, by material selectivity applies on the table, is formed after rapid cooling
One layer cross section.After the completion of one formable layer, machine operation platform declines a height (i.e. lift height) or spray head rises a height
Lower layer of reshaping, until forming entire solid modelling.
The preparation method of above-mentioned plastic scintillant provided by the invention, by using the side of " Deformation In The Fdm Process 3D printing "
Formula prepares plastic scintillant, can quickly and efficiently realize that material forms, preparation cost is low, process is environmentally friendly, and compared to tradition
Extrusion process has the characteristics that shape is customized.
In some embodiments, the plastic basis material of the light-permeable includes but is not limited to polystyrene or polyvinyl-toluene
Deng or any combination above-mentioned.
In some embodiments, first luminescent substance include but is not limited to 2,5- diphenyloxazole (PPO), it is p-
Triphen (p-TP) or 2- (4- xenyl) -5- phenyl -1,3,4- oxadiazoles (PBD) etc. or any combination above-mentioned.
In some embodiments, second luminescent substance includes but is not limited to Isosorbide-5-Nitrae-two-(2- (5- oxazolyl phenyl base))
(POPOP) or p- double-(σ-methyl styrene base) benzene (bis-MSB) etc. or any combination above-mentioned.
In some embodiments, by percentage to the quality, the quality of the first luminescent substance is the 0.1% of plastic basis material quality
~15%, the quality of second luminescent substance is the 0.1%~15% of the first luminescent substance quality.
In some embodiments, plastic basis material is as raw material before mixing, be processed into first it is powdered so that mixing is more equal
It is even.Means commonly used in the art can be used in processing method, for example, crushing, rolling, polishing；Processing temperature should be lower than the plastics base
The softening temperature of material, to avoid substrate agglomeration, for example, processing temperature should control when selecting granules of polystyrene as substrate
At 70 DEG C or less, it is preferable that processing temperature control is at 50 DEG C hereinafter, to reduce the degree of oxidation of polystyrene.
In some embodiments, heating squeeze out 150 DEG C~300 DEG C at a temperature of carry out, preferably 160 DEG C~220 DEG C,
It is easy to control the size of extruded material, such as diameter at such a temperature.Raw material aoxidizes during heating and squeezing out in order to prevent,
Carried out in protective atmosphere to the property of can choose, wherein in protective atmosphere optional gas include but is not limited to nitrogen, helium,
Argon gas or any mixture above-mentioned.In some embodiments, the material after heating squeezes out is the filamentary material of uniform diameter, but
It is not limited in this embodiment.
In some embodiments, Deformation In The Fdm Process 3D printing 170 DEG C~300 DEG C at a temperature of carry out, preferably 180
DEG C~240 DEG C, it is more preferable in the temperature profile effect.3D printing consumptive material aoxidizes during melting in order to prevent, can choose
It is carried out in protective atmosphere to property, wherein optional gas includes but is not limited to nitrogen, helium, argon gas or preceding in protective atmosphere
Any mixture stated.Preferably, aforesaid operations are carried out using Deformation In The Fdm Process 3D printer, wherein equipment parameters packet
Temperature, layer height, packed density, filling mode etc. are included but be not limited to, can accordingly be set according to actual needs, shape needed for customizing
The material of shape and performance.
It in some embodiments, further include that will print resulting material after carrying out Deformation In The Fdm Process 3D printing and carry out
The techniques such as polishing, to obtain the plastic scintillant finished product of surfacing.
Another aspect of the present invention provides a kind of plastic scintillant, and above-mentioned preparation method is used to be prepared.
Below by specific embodiment, the present invention is further illustrated, unless otherwise specified, of the present invention
Reagent, material etc. are commercially available.
Embodiment 1
(1) it selects General Purpose Polystyrenre particle as substrate, is crushed General Purpose Polystyrenre particle using pulverizer
It controls at powdered, and by the temperature in crushing process at 50 DEG C or less.
(2) the first luminescent substance selected is 2,5- diphenyloxazole (PPO), and the second luminescent substance of selection is Isosorbide-5-Nitrae-
Two-(2- (5- oxazolyl phenyl base)) (POPOP).500g Polystyrene powder, 7.5gPPO powder and 0.85gPOPOP powder are taken,
Uniformly mixing, is made raw material.
(3) raw material heating is squeezed out using extruder and obtains the filamentary material of uniform diameter.The heating temperature of extruder is set
170 DEG C are set to, extrusion bore dia is 1.75mm.
(4) the cylindric Plastic scintillation body Model for being a height of 6mm of 30mm using 3 d modeling software construction diameter.
(5) 3D printer based on fused deposition scheme is selected.Using filamentary material as the consumptive material of above-mentioned 3D printer, beat
It stamps and states cylindric Plastic scintillation body Model.The running parameter that 3D printer is arranged is as follows: nozzle temperature is 220 DEG C, single layer layer
A height of 0.15mm, packed density 100%, filling mode are coaxial filling.
(6) upper and lower end face of the plastic scintillant of preparation is polished using polishing machine, obtaining diameter is a height of 5mm's of 30mm
Cylindric plastic scintillant.
Embodiment 2
(1) it selects polyvinyl-toluene as substrate, is pulverized into powder polyvinyl-toluene using pulverizer, and will
Temperature in crushing process is controlled at 50 DEG C or less.
(2) the first luminescent substance selected is PBD, and the second luminescent substance of selection is POPOP.Take 500g polyvinyl first
Benzene powder, 10gPBD powder and 0.40gPOPOP powder uniformly mix, raw material are made, and uniformly mix, raw material is made.
(3) raw material heating is squeezed out using extruder and obtains the filamentary material of uniform diameter.The heating temperature of extruder is set
170 DEG C are set to, extrusion bore dia is 1.75mm.
(4) the cylindric Plastic scintillation body Model of 3 d modeling software construction diameter 19mm high 6mm is utilized.
(5) 3D printer based on fused deposition scheme is selected.Using filamentary material as the consumptive material of above-mentioned 3D printer, beat
It stamps and states cylindric Plastic scintillation body Model.The running parameter that 3D printer is arranged is as follows: nozzle temperature is 200 DEG C, single layer layer
A height of 0.15mm, packed density 100%, filling mode are coaxial filling.
(6) upper and lower end face of the plastic scintillant of preparation is polished using polishing machine, obtains the cylinder of diameter 19mm high 5mm
Shape plastic scintillant.
Test case
Using photomultiplier tube and137The light output performance of the plastic scintillant of Cs radioactive source testing example 1.
Using the photomultiplier tube for the R7725 model that Japanese Bin Song company produces, load working voltage is 1530V.Implement
The time pole-face of the end face of the plastic scintillant of example 1 and photomultiplier tube is coupled using silicone oil,137Cs radioactive source is directed at embodiment 1
Plastic scintillant, the quantity of electric charge of signal of statistics photomultiplier transit tube anode output obtains charge spectra.
Under same environment, the light output performance of the EJ-200 plastic scintillant of identical size is tested with identical method,
EJ-200 plastic scintillant is the product of U.S. Eljen Technology company.According to the charge spectra of Fig. 1, the modeling of embodiment 1
The light output of scintillator is expected compared with EJ-200 model plastic scintillant, and light output is about 77%.EJ-200 model Plastic scintillation
Light output be about the 64% of standard anthracene crystal.The light output value of the plastic scintillant of embodiment 1 is about standard anthracene crystal
49%.
As it can be seen that the plastic scintillant of the application, not only has the characteristics that molding is fast, shape is customizable, also has good
Light output performance.
Those skilled in the art should be noted that embodiment described in the invention is only exemplary, can be
Various other replacements, changes and improvements are made in the scope of the present invention.Thus, the present invention is not limited to the above embodiments, and only
It is defined by the claims.
Claims (10)
1. a kind of preparation method of plastic scintillant, comprising:
The plastic basis material of one light-permeable is provided；
The first luminescent substance and the second luminescent substance are provided, by the plastic basis material, first luminescent substance and described second
Luminescent substance mixing is used as raw material；
The raw material is heated and is squeezed out, the material after the heating extrusion is as 3D printing consumptive material；
Deformation In The Fdm Process 3D printing is carried out using the 3D printing consumptive material, obtains the plastic scintillant.
2. preparation method according to claim 1, which is characterized in that the plastic basis material is selected from polystyrene and poly- second
Alkenyl toluene it is one or more.
3. preparation method according to claim 1, which is characterized in that first luminescent substance is selected from 2,5- diphenyl
One of oxazole, p- terphenyl and 2- (4- xenyl) -5- phenyl -1,3,4- oxadiazoles are a variety of.
4. preparation method according to claim 1, which is characterized in that second luminescent substance is selected from Isosorbide-5-Nitrae-two-(2-
(5- oxazolyl phenyl base)) and one of p- double-(σ-methyl styrene base) benzene or a variety of.
5. preparation method according to claim 1, which is characterized in that by percentage to the quality, first luminescent substance
Quality be the 0.1%~15% of the plastic basis material quality, the quality of second luminescent substance is first shiner
The 0.1%~15% of matter quality.
6. preparation method according to claim 1, which is characterized in that process the plastic basis material be it is powdered after, with institute
The first luminescent substance and second luminescent substance mixing are stated as raw material, wherein the temperature of the processing is lower than the plastics base
The softening temperature of material.
7. preparation method according to claim 1, which is characterized in that the heating squeezes out the temperature at 150 DEG C~300 DEG C
Lower progress.
8. preparation method according to claim 1, which is characterized in that the Deformation In The Fdm Process 3D printing 170 DEG C~
It is carried out at a temperature of 300 DEG C.
9. preparation method according to claim 1, which is characterized in that the process that the heating squeezes out is in protective atmosphere
It carries out, the process of the Deformation In The Fdm Process 3D printing carries out in protective atmosphere.
10. a kind of plastic scintillant is prepared using preparation method according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910151672.5A CN109822887B (en) | 2019-02-28 | 2019-02-28 | Plastic scintillator and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910151672.5A CN109822887B (en) | 2019-02-28 | 2019-02-28 | Plastic scintillator and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109822887A true CN109822887A (en) | 2019-05-31 |
| CN109822887B CN109822887B (en) | 2020-12-15 |
Family
ID=66864958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910151672.5A Active CN109822887B (en) | 2019-02-28 | 2019-02-28 | Plastic scintillator and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109822887B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114085430A (en) * | 2020-08-24 | 2022-02-25 | 中国科学院上海硅酸盐研究所 | Organic/inorganic composite scintillator and preparation method thereof |
| CN114891138A (en) * | 2022-06-20 | 2022-08-12 | 中国科学院近代物理研究所 | Pouring method for large-volume plastic flash preparation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108381955A (en) * | 2018-02-27 | 2018-08-10 | 西南科技大学 | A kind of preparation method of plastic scintillant fiber array |
| CN108541306A (en) * | 2015-11-19 | 2018-09-14 | 皇家飞利浦有限公司 | Flicker nanocomposite |
-
2019
- 2019-02-28 CN CN201910151672.5A patent/CN109822887B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108541306A (en) * | 2015-11-19 | 2018-09-14 | 皇家飞利浦有限公司 | Flicker nanocomposite |
| CN108381955A (en) * | 2018-02-27 | 2018-08-10 | 西南科技大学 | A kind of preparation method of plastic scintillant fiber array |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114085430A (en) * | 2020-08-24 | 2022-02-25 | 中国科学院上海硅酸盐研究所 | Organic/inorganic composite scintillator and preparation method thereof |
| CN114085430B (en) * | 2020-08-24 | 2022-08-16 | 中国科学院上海硅酸盐研究所 | Organic/inorganic composite scintillator and preparation method thereof |
| CN114891138A (en) * | 2022-06-20 | 2022-08-12 | 中国科学院近代物理研究所 | Pouring method for large-volume plastic flash preparation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109822887B (en) | 2020-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109822887A (en) | A kind of plastic scintillant and preparation method thereof | |
| Berns et al. | A novel polystyrene-based scintillator production process involving additive manufacturing | |
| WO2015118533A1 (en) | Methods for fabricating 3-dimentional scintillators | |
| CN103224786B (en) | Lithio scintillator for neutron detection | |
| Efremenko et al. | Use of poly (ethylene naphthalate) as a self-vetoing structural material | |
| CN105785714A (en) | Photosensitive resin for 3D printing and preparation and application method thereof | |
| CN104356619A (en) | Preparation method of modified PLA material applied to 3D printer | |
| CN104987630B (en) | Modified polytrifluorochloroethylene and its mould pressing process | |
| CN106674736A (en) | Polypropylene/boron carbide composite material for 3D (three-dimensional) printing and preparation method | |
| Lee et al. | Characterization of plastic scintillator fabricated by UV LED curing machine | |
| Aidala et al. | Design and Beam Test Results for the 2-D Projective sPHENIX Electromagnetic Calorimeter Prototype | |
| US2442368A (en) | Method of making plastic articles by injection molding | |
| Britvich et al. | New polystyrene-based scintillators | |
| Berns et al. | Additive manufacturing of fine-granularity optically-isolated plastic scintillator elements | |
| CN109251328A (en) | A kind of tungsten for 3D printing/PEEK radiation protection composite wire and preparation method thereof | |
| Sa'ude et al. | Effect of powder loading and binder materials on mechanical properties in Iron-ABS injection molding process | |
| Gueorguiev et al. | Composite neutron gamma detector | |
| JP2012531278A (en) | Dryer bar with void volume | |
| JP5632235B2 (en) | Method for producing glass fiber reinforced thermoplastic resin composition pellets | |
| CN102126262A (en) | Blade type processing equipment and processing method of plastic and plantfiber composite materials | |
| CN115639587A (en) | Method for improving detection performance of powdery scintillator on high-energy rays | |
| Pancoko et al. | Comparative study between fabricated plastic scintillator and existing product for gamma detection | |
| CN111873301A (en) | Injection molding apparatus, injection molding method, and machine-readable storage medium | |
| Prokhorenko et al. | Analysis of radiation protective properties of polystyrene-based composite materials | |
| Monajemi | 3D Printed Radiation Detectors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |