CN109085145A - A kind of fluorescence sense film and preparation method thereof and explosive detection instrument - Google Patents
A kind of fluorescence sense film and preparation method thereof and explosive detection instrument Download PDFInfo
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- CN109085145A CN109085145A CN201810706356.5A CN201810706356A CN109085145A CN 109085145 A CN109085145 A CN 109085145A CN 201810706356 A CN201810706356 A CN 201810706356A CN 109085145 A CN109085145 A CN 109085145A
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- sense film
- fluorescence
- film
- preparation
- fluorescent polymer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
Abstract
The present invention provides the preparation methods of fluorescence sense film, in steady temperature and humidity environment, prepared fluorescent polymer stock solution is coated on glass substrate surface, form sense film, and it is the sense film is dry, the sense film after drying is placed in hot environment again, curing process is dried, the sense film after dry solidification is finally subjected to fluorescence intensity detection, the suitable sense film of fluorescence intensity is chosen as fluorescence sense film, the preparation method simple process of above-mentioned fluorescence sense film, cost is relatively low；The fluorescence sense film that the method is prepared through the invention, sensitivity is higher, response is rapid, can be widely applied to explosive detection instrument.
Description
Technical field
The present invention relates to explosive detection sensor technical field more particularly to a kind of fluorescence sense film and its preparations
Method and explosive detection instrument.
Background technique
Therefore, the development and application of explosive detection equipment are of great practical significance, especially small in size, again
Light fluorescence sense explosive detection equipment is measured, because of its high sensitivity and portability, there is very wide application prospect.?
The quasi-instrument in use, fluorescence sense film device is the core of instrument, and the direct shadow of superiority and inferiority of Internal Fluorescent sense film
Ring the detection performance of the quasi-instrument.Therefore, a kind of process flow that can be applied to fluorescence sense film automated production is researched and developed extremely
Close it is important, have highly important economic value.
Currently, explosive detection equipment mostly uses Ion mobility spectrometry and fluorescence detection technology, Ion mobility spectrometry
Be it is qualitative come the separation for carrying out ion with the difference of ion drift time, by be similar to chromatographic retention concept, originally
Referred to as plasma chromatography.The core component of Ion mobility spectrometry is drift tube, and compared to fluorescent optical sensor, volume is big,
Power consumption is big, can not accomplish portable.
Summary of the invention
Have in view of that, it is necessary in view of the defects existing in the prior art, provide a kind of small in size, low in energy consumption, high sensitivity
Fluorescence sense film and preparation method thereof.
To achieve the above object, the present invention adopts the following technical solutions:
One of the object of the invention provides a kind of preparation method of fluorescence sense film, includes the following steps:
A collection of glass substrate is provided；
Prepare the fluorescent polymer stock solution of suitable concentration；
In steady temperature and humidity environment, the fluorescent polymer stock solution is coated on glass substrate surface, is formed
Sense film, and the sense film is dry；
By the sense film after drying in hot environment, curing process is dried；
Sense film after dry solidification is subjected to fluorescence intensity detection, the suitable sense film of fluorescence intensity is chosen and makees
For qualified sense film；
Qualified sense film is packed into film substrate, is assembled into fluorescence sense film device.
It in some preferred embodiments, further include following steps in the step of clean glass substrate of a batch is provided
It is rapid:
The glass substrate is cleaned, after washes of absolute alcohol through chrome pickle, light water cleaning, deionized water, then through heat
Wind is dried.
In some preferred embodiments, in the step of preparing fluorescent polymer stock solution, following steps are specifically included
It is rapid:
Fluorescent polymer is dispersed in toluene solvant, is ultrasonically treated, the evenly dispersed effect of polymer is had reached
Fruit.In some preferred embodiments, the mass volume ratio of the fluorescent polymer and the toluene solvant is 5-10:100,
Sonication treatment time is 30-60 minutes.
In some preferred embodiments, the fluorescent polymer is polydiphenylsilane.
In some preferred embodiments, in steady temperature and humidity environment, the fluorescent polymer stock solution is applied
It is overlying on glass substrate surface, forms sense film, in the dry step of the sense film, the steady temperature is 20~
25 degrees Celsius, constant humidity is 40~60%, and drying time is 4~6 hours.
In some preferred embodiments, in steady temperature and humidity environment, the fluorescent polymer stock solution is applied
It is overlying on glass substrate surface, forms sense film, and in the step of sense film coats, the fluorescent polymer storage
The volume that standby liquid is coated on glass substrate surface is 30~50ml.
In some preferred embodiments, the sense film after drying is being placed in hot environment, is being dried at solidification
In the step of reason, the hot environment is 50~80 degrees Celsius, and high-temperature time is 10~30 minutes.
In some preferred embodiments, sense film progress fluorescence intensity detection, the selection after dry solidification is glimmering
In the step of suitable sense film of luminous intensity is as fluorescence sense film, specifically include the following steps:
Sense film after dry solidification is subjected to fluorescence intensity detection, when fluorescence intensity is between 40000-50000
Sense film is as qualified fluorescence sense film.
The two of the object of the invention provide a kind of fluorescence sense film, by the preparation method of the fluorescence sense film
It is prepared.
The three of the object of the invention provide a kind of explosive detection instrument, including the fluorescence sense film.
The present invention by adopting the above technical scheme the advantages of be:
The preparation method of fluorescence sense film provided by the invention will be prepared in steady temperature and humidity environment
Fluorescent polymer stock solution is coated on glass substrate surface, forms sense film, and the sense film is dry, will dry
Sense film afterwards is placed in hot environment, curing process is dried, then the sense film after dry solidification is carried out fluorescence
Intensity detection chooses the suitable sense film of fluorescence intensity as qualified fluorescence sense film, the system of above-mentioned fluorescence sense film
Preparation Method simple process, cost is relatively low；The fluorescence sense film being prepared by the invention above method, sensitivity is higher, rings
Explosive detection instrument should be can be widely applied to rapidly.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
Some embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to these attached drawings.
Fig. 1 is the step flow chart of the preparation method of fluorescence sense film provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the step flow chart of the preparation method 10 for fluorescence sense film provided in an embodiment of the present invention,
Include the following steps:
Step S110: a batch clean glass substrate is provided；
In some preferable embodiments, the glass substrate is clear through chrome pickle, light water cleaning, deionized water
It washes, after washes of absolute alcohol, then handled through heated-air drying.
Specifically, glass substrate is impregnated 24 hours through chromic acid, deionized water ultrasonic cleaning three after being rinsed three times with clear water
Time, then rinsed above-mentioned glass substrate twice with dehydrated alcohol；Glass substrate after cleaning is placed on containing dehydrated alcohol
In clean beaker, the edge of glass substrate is accurately clamped with manipulator or tweezers, it is dry in hot wind, it is spare.
Step S120: the fluorescent polymer stock solution of suitable concentration is prepared；
In some preferable embodiments, the fluorescent polymer stock solution is prepared using following methods, will be glimmering
Photopolymer is dispersed in toluene solvant, then is ultrasonically treated, and then reaches equally distributed effect.
In some preferable embodiments, the mass volume ratio of the fluorescent polymer and the toluene solvant is 5~
10:100, sonication treatment time are 30~60 minutes.
In some preferable embodiments, the fluorescent polymer is polydiphenylsilane.
Specifically, by above-mentioned mass volume ratio, a certain amount of fluorescent polymer is accurately weighed, is placed in vent cabinet, it will be glimmering
Photopolymer is dissolved in the toluene solvant of certain volume, ultrasonic dissolution.
Step S130: in steady temperature and humidity environment, the fluorescent polymer stock solution is coated on glass substrate
Surface forms sense film, and the sense film is dry；
In some preferable embodiments, the steady temperature be 20~25 degrees Celsius, constant humidity be 4 0~
60%, drying time is 4-6 hours.
In some preferable embodiments, the fluorescent polymer stock solution is coated on the volume of glass substrate surface
For 30-50ml.
Specifically, in above-mentioned steady temperature and humidity environment, by prepared stock solution liquid-transfering gun or dispenser,
Clean glass substrate surface is coated on by the volume of 30-50ml.
Step S140: by the sense film after drying in hot environment, curing process is dried；
In some preferable embodiments, the hot environment is 50~80 degrees Celsius, and high-temperature time is 10~30 points
Clock.
Step S150: carrying out fluorescence intensity detection for the sense film after dry solidification, chooses fluorescence intensity and suitably passes
Film is felt as qualified fluorescence sense film.
In some preferable embodiments, the sense film after dry solidification is being subjected to fluorescence intensity detection, with glimmering
Sense film of the luminous intensity between 40000-50000 is as qualified fluorescence sense film.
Specifically, sense film dry solidification completed, detects through fluorescence intensity tester, weeds out fluorescence intensity
Too high or too low defective products selects sense film of the fluorescence intensity between 40000-50000 thin as qualified fluorescence sense
Film.
It is appreciated that will test qualified fluorescence sense film is packed into film substrate, it is assembled into fluorescence sense film device
Part.
The preparation method of fluorescence sense film provided by the invention will be configured in steady temperature and humidity environment
Fluorescent polymer stock solution is coated on glass substrate surface, forms sense film, and the sense film is dry, will dry
Curing process is dried in hot environment in sense film afterwards, then the sense film progress fluorescence after dry solidification is strong
Degree detection chooses the suitable sense film of fluorescence intensity as qualified fluorescence sense film.The preparation of above-mentioned fluorescence sense film
Method and process is simple, cost is relatively low；The fluorescence sense film that the above method is prepared through the invention, sensitivity is higher, rings
Explosive detection instrument should be can be widely applied to rapidly.
The following are specific embodiment parts:
Embodiment 1
The preparation process for the explosive detection fluorescence sense film that the present embodiment 1 provides, comprising the following steps:
(1), in clean environment, glass substrate ultrapure water is cleaned by ultrasonic completely, then twice with washes of absolute alcohol
It is placed on horizontal base plate by heated-air drying, and by certain sequence is neat；
(2), 5.0 milligrams of fluorescent polymers are accurately weighed with the balance of ten a ten thousandths, is dissolved in 100 milliliters of toluene solvants
In, ultrasound 30 minutes prepares fluorescent polymer stock solution；
It (3), is 20 degrees Celsius in steady temperature, it is in the environment that constant humidity is 40%, prepared stock solution 30 is micro-
It rises drop coating and forms sense film in clean glass substrate surface, and sense film is spontaneously dried 4 hours；
(4), the sense film after drying is placed in 50 degrees Celsius of air dry oven and is continued dry solidification 30 minutes,
It is cooled to room temperature；
(5), the sense film for completing dry solidification, is detected through fluorescence intensity tester, is chosen fluorescence intensity and is existed
40000 sense film is as qualified sense film；
(6), qualified sense film is packed into film substrate, is assembled into fluorescence sense film device.
Embodiment 2
The preparation process for the explosive detection fluorescence sense film that the present embodiment 2 provides, comprising the following steps:
(1), in clean environment, glass substrate ultrapure water is cleaned by ultrasonic completely, then twice with washes of absolute alcohol
It is placed on horizontal base plate by heated-air drying, and by certain sequence is neat；
(2), 10.0 milligrams of fluorescent polymers are accurately weighed with the balance of ten a ten thousandths, is dissolved in 100 milliliters of toluene solvants
In, ultrasound 60 minutes prepares fluorescent polymer stock solution；
It (3), is 25 degrees Celsius in steady temperature, it is in the environment that constant humidity is 60%, prepared stock solution 50 is micro-
It rises drop coating and forms sense film in clean glass substrate surface, and sense film is spontaneously dried 6 hours；
(4), the sense film after drying is placed in 80 degrees Celsius of air dry oven and is continued dry solidification 30 minutes,
It is cooled to room temperature；
(5), the sense film for completing dry solidification, is detected through fluorescence intensity tester, is chosen fluorescence intensity and is existed
50000 sense film is as qualified sense film；
(6), qualified sense film is packed into film substrate, is assembled into fluorescence sense film device.
Embodiment 3
The preparation process for the explosive detection fluorescence sense film that the present embodiment 3 provides, comprising the following steps:
(1), in clean environment, glass substrate ultrapure water is cleaned by ultrasonic completely, then twice with washes of absolute alcohol
It is placed on horizontal base plate by heated-air drying, and by certain sequence is neat；
(2), 8.0 milligrams of fluorescent polymers are accurately weighed with the balance of ten a ten thousandths, is dissolved in 100 milliliters of toluene solvants
In, ultrasound 40 minutes prepares fluorescent polymer stock solution；
It (3), is 22 degrees Celsius in steady temperature, it is in the environment that constant humidity is 50%, prepared stock solution 40 is micro-
It rises drop coating and forms sense film in clean glass substrate surface, and sense film is spontaneously dried 5 hours；
(4), the sense film after drying is placed in 60 degrees Celsius of air dry oven and is continued dry solidification 20 minutes,
It is cooled to room temperature；
(5), the sense film for completing dry solidification, is detected through fluorescence intensity tester, is chosen fluorescence intensity and is existed
45000 sense film is as qualified sense film；
(6), qualified sense film is packed into film substrate, is assembled into fluorescence sense film device.
Certainly the preparation method of fluorescence sense film of the invention can also have a variety of transformation and remodeling, it is not limited to
The specific structure of above embodiment.In short, protection scope of the present invention should include those for those of ordinary skill in the art
For obviously convert or substitute and retrofit.
Claims (11)
1. a kind of preparation method of fluorescence sense film, which is characterized in that include the following steps:
There is provided a batch clean glass substrate；
Prepare the fluorescent polymer stock solution of suitable concentration；
In steady temperature and humidity environment, the fluorescent polymer stock solution is coated on glass substrate surface, forms sensing
Film, and the sense film is dry；
By the sense film after drying in hot environment, curing process is dried；
Sense film after dry solidification is subjected to fluorescence intensity detection, chooses the suitable sense film of fluorescence intensity as qualified
Sense film；
Qualified sense film is packed into film substrate, is assembled into fluorescence sense film device.
2. the preparation method of fluorescence sense film as described in claim 1, which is characterized in that providing a batch clean glass
Further include following step in the step of substrate:
The glass substrate is after chrome pickle, light water cleaning, deionized water cleaning, washes of absolute alcohol, then carries out hot wind
It is dried.
3. the preparation method of fluorescence sense film as described in claim 1, which is characterized in that preparing fluorescent polymer deposit
In the step of liquid, specifically include the following steps:
Fluorescent polymer is dispersed in toluene solvant, is ultrasonically treated, the evenly dispersed effect of polymer is had reached.
4. the preparation method of fluorescence sense film as claimed in claim 3, which is characterized in that the fluorescent polymer with it is described
The mass volume ratio of toluene solvant is 5~10:100, and sonication treatment time is 30~60 minutes.
5. the preparation method of fluorescence sense film as claimed in claim 4, which is characterized in that the fluorescent polymer is poly- two
Phenyl silane.
6. the preparation method of fluorescence sense film as described in claim 1, which is characterized in that in steady temperature and humidity environment
In, the fluorescent polymer stock solution is coated on glass substrate surface, forms sense film, in the step of drying sense film
In, the steady temperature is 20~25 degrees Celsius, and constant humidity is 40~60%, and drying time is 4~6 hours.
7. the preparation method of fluorescence sense film as claimed in claim 6, which is characterized in that in steady temperature and humidity environment
In, the fluorescent polymer stock solution is coated on glass substrate surface, forms sense film, in sense film coating
In step, the volume that the fluorescent polymer stock solution is coated on glass substrate surface is 30~50ml.
8. the preparation method of fluorescence sense film as described in claim 1, which is characterized in that by the sense film after drying
It is placed in hot environment, is dried in the step of solidification, the hot environment is 50~80 degrees Celsius, high-temperature time 10-30
Minute.
9. the preparation method of fluorescence sense film as described in claim 1, which is characterized in that by the sensing after dry solidification
Film carries out fluorescence intensity detection, and chooses in the step of sense film of suitable fluorescence intensity is as fluorescence sense film, has
Body includes the following steps:
Carried out in fluorescence intensity detection by dry solidification treated sense film, with fluorescence intensity 40000-50000- it
Between sense film as qualified fluorescence sense film.
10. a kind of fluorescence sense film, which is characterized in that by the system of the described in any item fluorescence sense films of claim 1-9
Preparation Method is prepared.
11. a kind of explosive detection instrument, which is characterized in that including the fluorescence sense film.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098379A (en) * | 2020-08-20 | 2020-12-18 | 深圳砺剑防卫技术有限公司 | Method for detecting drugs by combining liquid phase extraction and fluorescence sensing technologies |
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Application publication date: 20181225 |