CN205925457U - Ventilative nanometer membrane surface material detection device that drops - Google Patents
Ventilative nanometer membrane surface material detection device that drops Download PDFInfo
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- CN205925457U CN205925457U CN201620760708.1U CN201620760708U CN205925457U CN 205925457 U CN205925457 U CN 205925457U CN 201620760708 U CN201620760708 U CN 201620760708U CN 205925457 U CN205925457 U CN 205925457U
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Abstract
The utility model relates to a ventilative nanometer membrane surface material detection device that drops belongs to the nano -material research techniques field. This detection device includes: the experimental system, including test sample table and blast pipe, test sample table has hollow detection chamber to test sample table is last to be equipped with and to be used for the fixed clamping part that awaits measuring ventilative nanometer membrane, makes ventilative nanometer membrane cover in the open end that detects the chamber, blast pipe one end with detect the chamber intercommunication, the other end is used for the exhaust, gas supply system, including gaseous generating device and gaseous purifier, gaseous generating device passes through the air supply pipe and connects gaseous purifier, and gaseous purifier is used for providing the purge gas to the ventilative nanometer membrane that awaits measuring on the test sample table, and the nano particles of the epimembranal face of the ventilative nanometer of messenger comes off to get into and detects the intracavity, and detecting system, including laser particle counter for nano particles to detecting the intracavity counts. Adopt the device can come the number that drops of the ventilative nanometer membrane nanostructured surface layer material of survey through accurate count.
Description
Technical field
The utility model is related to nano materials research technical field, and more particularly to a kind of ventilative nanometer film surfacing takes off
Fall detection means.
Background technology
Nano-sized membrane is to be the compound foil that main or secondary raw material is prepared from through processing with Nano grade raw material,
Generally have the characteristics that ventilative, because its material particle diameter itself is less, the features such as specific surface area is larger, lead to a lot of nanometer film to become
More easy to fall off after shape, so the quantity that comes off measuring nanometer particle material in nanometer film just seems important.
Just at present, the method for the nanometer particle material amount of coming off few, conventional mensure in real mensure nanometer film
On film material, a lot of methods of dry linting are all primarily directed to bulky grain class material；The hair loss of such as paper, dry linting measure, or
Some more caducous films；For measuring device, mainly pass through to measure based on the weight difference before and after coming off, this kind of mensure
Method needs high-precision assay balance to weigh, and method error is larger, especially for the less nanometer film of the order of magnitude
The reading of substantially having no idea that comes off of material, increased the difficulty of mensure, and for this, exploitation one kind being capable of precise determination nano material
On composite membrane, the method for nano material dropping situations just seems more and more important.
Content of the invention
Based on this it is necessary to be directed to the problems referred to above, provide a kind of ventilative nanometer film surfacing to come off detection means, adopt
This device, can measure the number that comes off of ventilative nanometer film nano surface material by accurate counting.
A kind of ventilative nanometer film surfacing comes off detection means, including：
Experimental system, including sample bench and blast pipe, described sample bench has the test chamber of hollow, and described sample bench
It is provided with the clamping part for fixing ventilative nanometer film to be measured, make described ventilative nanometer film be covered in the opening of described test chamber
End, described blast pipe one end is connected with described test chamber, and the other end is used for being vented；
Air supply system, including gas generating unit and gas cleaning plant, described gas generating unit is by air supply pipe even
Connect described gas cleaning plant, described gas cleaning plant is used for providing purification to the to be measured ventilative nanometer film on described sample bench
Gas, makes the nano-particle on ventilative nanometer film surface shed in described test chamber；And
Detecting system, including laser particle counter, for counting to the nano-particle in test chamber.
Above-mentioned detection device, provides gas by air supply system for ventilative nanometer film to be measured, by ventilative nanometer film to be measured
The nanometer particle material that can come off blows off entrance test chamber, subsequently to read the nano-particle powder coming off with laser particle counter
Dirt number, and, by the setting of gas cleaning plant, the gas that air supply system is provided achieves high-efficient purification, it is to avoid
It is mixed into nano-particle dust to evaluated error it is achieved that accurate meter to ventilative nanometer film nano surface material falls back in gas
Number.
Wherein in an embodiment, described experimental system also includes differential manometer, and described differential manometer is used for measuring to be measured
The pressure difference of gas nanometer film both side surface.By the use of differential manometer, the pressure difference of ventilative nanometer film both side surface can be entered
Row monitoring, it is to avoid pressure difference is excessive to lead to ventilative nanometer film sample damaged.
Wherein in an embodiment, described sample bench is tapered barrel-like structure, and described retaining part is in described tapered bucket
The larger one end of shape sample bench opening, and the taper of described sample bench is not more than 1:5.Above-mentioned setting can be received for be measured breathing freely
Rice film sample provides preferable air pressure conditions.
Wherein in an embodiment, described experimental system also includes the confession gas coning of tapered barrel-like structure, described confession gas coning
The larger one end of opening can be coordinated with the clamping part of described sample bench and fix ventilative nanometer film to be measured, make ventilative nanometer to be measured
The both side surface of film is respectively positioned in the cavity of closing.By the both side surface of ventilative nanometer film all in closed cavity, can keep away
Exempt from the impact to testing result for the outside environmental elements, improve detection accuracy.
Wherein in an embodiment, this detection means also includes mounting system, and described mounting system includes pole and liter
Falling unit, described lowering or hoisting gear is portable to be installed on described pole, and described confession gas coning is installed on described pole, and can
It is close to described sample bench or away from described sample bench under the drive of described lowering or hoisting gear.Above-mentioned setting is easy to be tested breathing freely and receives
The loan at call of rice film.
Wherein in an embodiment, described gas cleaning plant is installed in described confession gas coning.
Wherein in an embodiment, in described air supply system, described air supply pipe is additionally provided with humidity control apparatus and/or
Flow regulator.The humidity condition of gas can be adjusted, thus realizing the mensure under different humidity environment, and,
Flow regulator adjusting gas flow also can be passed through, make the pressure difference of the both side surface of ventilative nanometer film moderate, obtain preferably
Testing result.
Wherein in an embodiment, described experimental system also includes tail gas reception device, the exhaust end of described blast pipe
Connect with described tail gas reception device, and the exhaust end of described blast pipe be provided with allow gas by and retain nano-particle cut
Stay pad.By retaining to the nano-particle coming off, it is easy to postorder and carries out analysis, the property of the ventilative nanometer film product of overall merit
Energy.
Wherein in an embodiment, described blast pipe is additionally provided with flowmeter.
Wherein in an embodiment, described gas generating unit is air compressor, and described gas cleaning plant is effect
Rate rank is the filter of more than H13 level.Further increase airfiltering effect.
Compared with prior art, the utility model has the advantages that：
A kind of ventilative nanometer film surfacing of the present utility model comes off detection means, is to be measured ventilative by air supply system
Nanometer film provides gas, and the nanometer particle material that ventilative nanometer film to be measured can come off is blown off entrance test chamber, subsequently to swash
Light particle counter is reading the nano-particle dust number coming off, and it can be avoided that is mixed into nano-particle dust in gas to surveying
Determine error it is achieved that accurate counting to ventilative nanometer film nano surface material falls back.
This detection means has that structure is reliable, advantage simple to operate, can be widely applied to ventilative nano-sized membrane performance
In detection.
Brief description
Fig. 1 is structure of the detecting device schematic diagram in embodiment.
Wherein：110. sample bench；120. blast pipe；130. supply gas coning；141. pole；142. lowering or hoisting gear；150. flow
Meter；160. tail gas reception devices；210. gas generating unit；220. gas cleaning plant；230. air supply pipe；240. Flow-rate adjustment
Device；250. humidity control apparatus；310. laser particle counter；400. ventilative nanometer film.
Specific embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is more fully retouched
State.Preferred embodiment of the present utility model is given in accompanying drawing.But, the utility model can come real in many different forms
Existing however it is not limited to embodiment described herein.On the contrary, providing the purpose of these embodiments to be to make to public affairs of the present utility model
The understanding opening content is more thoroughly comprehensive.
It should be noted that when element is referred to as " fixation " in another element, it can be directly on another element
Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be direct connection
To another element or may be simultaneously present centering elements.When an element is considered as " connection " another element, it can
To be directly to another element or to may be simultaneously present centering elements.
Unless otherwise defined, all of technology used herein and scientific terminology are led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.In term used in the description of the present utility model it is simply herein
The purpose of description specific embodiment is it is not intended that in limiting the utility model.Term as used herein "and/or" includes
The arbitrary and all of combination of one or more related Listed Items.
A kind of ventilative nanometer film surfacing comes off detection means, including：Experimental system, air supply system and detecting system.
Described experimental system includes sample bench and blast pipe, and described sample bench has the test chamber of hollow, and described examination
Sample platform is provided with the clamping part for fixing ventilative nanometer film to be measured, makes described ventilative nanometer film be covered in opening of described test chamber
Mouth end, described blast pipe one end is connected with described test chamber, and the other end is used for being vented.
Described air supply system includes gas generating unit and gas cleaning plant, and described gas generating unit passes through air supply pipe
Connect described gas cleaning plant, described gas cleaning plant is used for providing only to the to be measured ventilative nanometer film on described sample bench
Change gas, so that the nano-particle on ventilative nanometer film surface is shedded in described test chamber.
Described detecting system includes laser particle counter, for counting to the nano-particle in test chamber.
For the gas in order to ventilative nanometer film surface particle to blow off, can be selected for any not anti-with ventilative nano-sized membrane
The gas answered, but, gas generating unit is set to air compressor, there is low cost, practical.And be
Improve airfiltering effect further, can service efficiency rank be that the filter of more than H13 level fills as gas purification
Put.Specific filter efficiency rank can be selected according to requirement of experiment.
May be appreciated it is contemplated that the size of supply tolerance need to be controlled when testing, it is to avoid ventilative nanometer film both side surface
Pressure difference is excessive to lead to the damaged situation of sample to occur, and described experimental system may also include differential manometer, and described differential manometer is used for surveying
Measure the pressure difference of ventilative nanometer film both side surface to be measured.
After detection obtains pressure difference, tolerance size can be adjusted by adjusting power of gas generating unit etc., also can lead to
Cross setting flow regulator on air supply pipe to be regulated and controled, can be specifically chosen as needed.
And, as being measured to ventilative nanometer film sample under different humidity environment, also can arrange on air supply pipe
Humidity control apparatus, realize the regulation to gas humidity.
Preferably, described sample bench is tapered barrel-like structure, and described retaining part is in described tapered tubbiness sample bench opening
Larger one end, and the taper of described sample bench is not more than 1:5.With above-mentioned setting, it can be ventilative nanometer film sample to be measured
Preferable air pressure conditions are provided.
It is matched therewith, described experimental system also includes the confession gas coning of tapered barrel-like structure, and described confession gas coning opening is relatively
Big one end can be coordinated with the clamping part of described sample bench and fix ventilative nanometer film to be measured, make the two of ventilative nanometer film to be measured
Side surface is respectively positioned in the cavity of closing.By the both side surface of ventilative nanometer film all in closed cavity, it can be avoided that extraneous
The impact to testing result for the environmental factor, improves detection accuracy.
It should be understood that described gas cleaning plant can be installed in described confession gas coning, have easy, reliably excellent
Point.
In order to improve the convenience of this test device further, this detection means also includes mounting system, described carriage support
System includes pole and lowering or hoisting gear, and described lowering or hoisting gear is portable to be installed on described pole, and described confession gas coning is installed on
On described pole, and described sample bench can be close under the drive of described lowering or hoisting gear or away from described sample bench.Above-mentioned setting
It is easy to the loan at call of ventilative nanometer film to be tested.
Described blast pipe is generally formed using simple steel pipe manufacturing, and its caliber selects according to aerodynamics, verifies and set
Meter, is provided with high-precision flowmeter on blast pipe, is easy to control the gas flow rate of whole system.
In view of the evaluation to ventilative nanometer film product combination property, described experimental system may also include tail gas and receives dress
Put, the exhaust end of described blast pipe is connected with described tail gas reception device, and the exhaust end of described blast pipe is provided with permission gas
By and retain the retention pad of nano-particle.By retaining to the nano-particle coming off, it is easy to postorder and carries out analysis.
Embodiment
A kind of ventilative nanometer film surfacing comes off detection means, including：Experimental system, air supply system and detecting system.
Described experimental system includes sample bench 110 and blast pipe 120, and described sample bench 110 has the test chamber of hollow, and
And described sample bench 110 is provided with the clamping part for fixing ventilative nanometer film 400 to be measured, so that described ventilative nanometer film 400 is covered
It is placed on the openend of described test chamber, described blast pipe 120 one end is connected with described test chamber, and the other end is used for being vented.
In the present embodiment, described experimental system may also include differential manometer, and described differential manometer is used for measuring to be measured ventilative receive
The pressure difference of rice film 400 both side surface.
In the present embodiment, described sample bench 110 is tapered barrel-like structure, and described retaining part tries in described tapered tubbiness
The larger one end of sample platform opening, and the taper of described sample bench 110 is not more than 1:5.With above-mentioned setting, can be to be measured ventilative
Nanometer film 400 sample provides preferable air pressure conditions.
It is matched therewith, described experimental system also includes the confession gas coning 130 of tapered barrel-like structure, described confession gas coning 130
The larger one end of opening can be coordinated with the clamping part of described sample bench 110 and fix ventilative nanometer film 400 to be measured, make to be measured
The both side surface of gas nanometer film 400 is respectively positioned in the cavity of closing.The both side surface of ventilative nanometer film 400 is all empty located at closing
In chamber, it can be avoided that the impact to testing result for the outside environmental elements, improve detection accuracy.
This detection means also includes mounting system, and described mounting system includes pole 141 and lowering or hoisting gear 142, described liter
Falling unit 142 is portable to be installed on described pole 141, and described confession gas coning 130 is installed on described pole 141, and can
It is close to described sample bench 110 or away from described sample bench 110 under the drive of described lowering or hoisting gear 142.Above-mentioned setting is easy to treat
The loan at call of testing air permeable nanometer film 400.
Specifically in the present embodiment, described blast pipe 120 is formed using simple steel pipe manufacturing, and its caliber is according to aerodynamic force
Learn and select, verify and design, high-precision flowmeter 150 is provided with blast pipe 120, be easy to control the gas of whole system
Flow velocity.
Equally, described experimental system may also include tail gas reception device 160, the exhaust end of described blast pipe 120 with described
Tail gas reception device 160 connects, and the exhaust end of described blast pipe 120 be provided with allow gas by and retain nano-particle cut
Stay pad.Thus the nano-particle coming off can be retained, it is easy to postorder and carries out analysis, ventilative nanometer film 400 product is carried out
The evaluation of combination property.
Described air supply system includes gas generating unit 210 and gas cleaning plant 220, described gas generating unit 210
Described gas cleaning plant 220 is connected by air supply pipe 230, described gas cleaning plant 220 is used for described sample bench 110
To be measured ventilative nanometer film 400 purification gas are provided, make the nano-particle on ventilative nanometer film 400 surface shed into described detection
In chamber, described air supply pipe 230 is provided with flow regulator 240, for adjusting the size of air demand.
In the present embodiment, described gas generating unit 210 is air compressor, and described gas cleaning plant 220 is effect
Rate rank is the filter of more than H13 level, and is installed in described confession gas coning 130.
And, in the present embodiment, described air supply pipe 230 is additionally provided with humidity control apparatus 250, can be to gas humidity
It is adjusted.
Described detecting system includes laser particle counter 310, for counting to the nano-particle in test chamber.
Measured using the situation that comes off that above-mentioned detection device carries out ventilative nanometer film surfacing, comprise the following steps：
First by ventilative nanometer film to be measured according to sample bench 110 size (a diameter of 100cm2) cut, this is to be measured
Ventilative nanometer film 400 is fixed on the clamping part of described sample bench 110, and operates described lowering or hoisting gear 142, makes tight for gas coning 130
It is affixed on sample bench 110, ventilative nanometer film 400 to be measured is clamped.
Later on air compressor (gas generating unit 210), the flow producing air gas can pass through Flow-rate adjustment
Device 240 is adjusting, and the big I of flow is read by flowmeter 150, and in the present embodiment, flow is 5.3cm/s.Through
The air of flow regulator 240 enters humidity control apparatus 250, typically using wet with the regulation of ambient humidity identical target
Degree, in the present embodiment for 60%RH.After gas after humidity regulation being adopted the high efficiency filter film of more than H13 level fold
The gas cleaning plant 220 made is filtered, and the clean gas after filtration can supply for ventilative nanometer film 400 to be measured.
Now need to read the pressure reduction measuring ventilative nanometer film both side surface to be measured by differential manometer, typically different is ventilative
The tolerant pressure reduction of nanometer film 400 sample institute is different, mainly will select to press according to the mechanical strength of ventilative nanometer film 400
Difference, prevents ventilative nanometer film 400 in venting process from damaging；After pressure reduction is stablized, start to clock and pass through laser particle counter
310 readings, the nano-particle due to nanometer film 400 surface ventilative in continuous mode may come off always, so needing to be spaced
Reading, and till nano-particle sum is basically unchanged.
And, in test process, persistent collection is carried out to tail gas, make the nano-particle quilt coming off from ventilative nanometer film surface
It is retained on retention pad, be easy to ventilative nanometer film overall performance is analyzed with reference to other analysis means comprehensively.
The ventilative nano-sized membrane performance of method described above detection, result is as shown in the table.
Table 1. different time sections nano-particle comes off cumulative number
| Interval time/h | 1 | 2 | 3 | 4 |
| Pressure reduction/Pa | 348 | 348 | 349 | 350 |
| Dry linting sum/ | 360 | 510 | 510 | 510 |
Above-mentioned experiment is to measure in the case that other all variables are all fixing, and its result shows：Cycle over time
Extend, the dry linting number of front 2 hours gets more and more, and by 2 hours, dry linting number was not further added by as time went on later, typically real
Require during testing to measure more than 5 hours, be so easy to reduce experimental error, test can also divide tow sides to measure,
Comprehensive analysis dry linting situation afterwards, is conducive to controlling the property of film composite material further.
Each technical characteristic of embodiment described above can arbitrarily be combined, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic applied in example is all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope of this specification record.
Embodiment described above only have expressed several embodiments of the present utility model, and its description is more concrete and detailed,
But therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, some deformation can also be made and improve, these broadly fall into
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be defined by claims.
Claims (10)
1. a kind of ventilative nanometer film surfacing comes off detection means it is characterised in that including：
Experimental system, including sample bench and blast pipe, described sample bench has the test chamber of hollow, and sets on described sample bench
There is the clamping part for fixing ventilative nanometer film to be measured, make described ventilative nanometer film be covered in the openend of described test chamber, institute
State blast pipe one end to connect with described test chamber, the other end is used for being vented；
Air supply system, including gas generating unit and gas cleaning plant, described gas generating unit connects institute by air supply pipe
State gas cleaning plant, described gas cleaning plant is used for providing purified gas to the to be measured ventilative nanometer film on described sample bench
Body, makes the nano-particle on ventilative nanometer film surface shed in described test chamber；And
Detecting system, including laser particle counter, for counting to the nano-particle in test chamber.
2. ventilative nanometer film surfacing according to claim 1 comes off detection means it is characterised in that described experiment system
System also includes differential manometer, and described differential manometer is used for measuring the pressure difference of ventilative nanometer film both side surface to be measured.
3. ventilative nanometer film surfacing according to claim 1 comes off detection means it is characterised in that described sample bench
For tapered barrel-like structure, described retaining part is in the larger one end of described tapered tubbiness sample bench opening, and described sample bench
Taper be not more than 1:5.
4. ventilative nanometer film surfacing according to claim 3 comes off detection means it is characterised in that described experiment system
System also includes the confession gas coning of tapered barrel-like structure, and the larger one end of described confession gas coning opening can be joined with the clamping part of described sample bench
Close and ventilative nanometer film to be measured is fixed, so that the both side surface of ventilative nanometer film to be measured is respectively positioned in the cavity of closing.
5. ventilative nanometer film surfacing according to claim 4 comes off detection means it is characterised in that also including support
System, described mounting system includes pole and lowering or hoisting gear, and described lowering or hoisting gear is portable to be installed on described pole, institute
State and be installed on described pole for gas coning, and described sample bench can be close under the drive of described lowering or hoisting gear or away from described examination
Sample platform.
6. ventilative nanometer film surfacing according to claim 4 comes off detection means it is characterised in that described gas is net
Gasifying device is installed in described confession gas coning.
7. the ventilative nanometer film surfacing according to any one of claim 1-6 comes off detection means it is characterised in that institute
State in air supply system, described air supply pipe is additionally provided with humidity control apparatus and/or flow regulator.
8. ventilative nanometer film surfacing according to claim 1 comes off detection means it is characterised in that described experiment system
System also includes tail gas reception device, and the exhaust end of described blast pipe is connected with described tail gas reception device, and described blast pipe
Exhaust end be provided with permission gas by and retain the retention pad of nano-particle.
9. ventilative nanometer film surfacing according to claim 1 comes off detection means it is characterised in that described blast pipe
On be additionally provided with flowmeter.
10. ventilative nanometer film surfacing according to claim 1 comes off detection means it is characterised in that described gas
Generating means is air compressor, the filter that described gas cleaning plant is more than H13 level for efficiency levels.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620760708.1U CN205925457U (en) | 2016-07-19 | 2016-07-19 | Ventilative nanometer membrane surface material detection device that drops |
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| CN201620760708.1U CN205925457U (en) | 2016-07-19 | 2016-07-19 | Ventilative nanometer membrane surface material detection device that drops |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354690A (en) * | 2019-08-13 | 2019-10-22 | 吉林工程技术师范学院 | A kind of ventilative nanometer film surfacing falls off detection device |
| CN113607461A (en) * | 2021-08-09 | 2021-11-05 | 山东鲲鹏农业发展有限公司 | Feed production material loading auxiliary device |
-
2016
- 2016-07-19 CN CN201620760708.1U patent/CN205925457U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354690A (en) * | 2019-08-13 | 2019-10-22 | 吉林工程技术师范学院 | A kind of ventilative nanometer film surfacing falls off detection device |
| CN110354690B (en) * | 2019-08-13 | 2021-09-21 | 吉林工程技术师范学院 | Ventilative nanometer membrane surface material detection device that drops |
| CN113607461A (en) * | 2021-08-09 | 2021-11-05 | 山东鲲鹏农业发展有限公司 | Feed production material loading auxiliary device |
| CN113607461B (en) * | 2021-08-09 | 2024-06-04 | 山东鲲鹏农业发展有限公司 | Feed production material loading auxiliary device |
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