CN106092826B - Low-intensity, low-permeability coating material gas diffusivity measurement device and method - Google Patents
Low-intensity, low-permeability coating material gas diffusivity measurement device and method Download PDFInfo
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- CN106092826B CN106092826B CN201610387014.2A CN201610387014A CN106092826B CN 106092826 B CN106092826 B CN 106092826B CN 201610387014 A CN201610387014 A CN 201610387014A CN 106092826 B CN106092826 B CN 106092826B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
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Abstract
Low-intensity, low-permeability coating material gas diffusivity measurement device and method, it is related to a kind of coating material factor detection device and method, device includes that there are two vacuum chamber, measuring chamber and plenum chambers in parallel, it is connected by the bleed-off passage with sealing flange, sealing flange utilizes the blank flange or test sample of flange gland and sealing ring sealing fixed disc shape towards plenum chamber side；Plenum chamber is equipped with openable plenum chamber door, installs or removes blank flange or test sample；Plenum chamber is equipped with plenum chamber pressure gauge, the loading line with pressure-adjusting control valve and the pump-line with plenum chamber valve；Measuring chamber is equipped with measuring chamber pressure gauge and the pump-line with measuring chamber valve, and the background leak rate of measuring chamber is relatively fixed.Very thin coating material can be used to measure for the present invention, and for the coating material of low-permeability, also can quickly obtain stabilizing gas pressure and gas flux data, measurement result is accurate.
Description
Technical field
The present invention relates to a kind of solid cladding measurement device and methods, apply more particularly to a kind of low-intensity, low-permeability
Layer material gas diffusivity measurement device and method.
Background technique
Currently, being mainly gas tank method and mass method for the measuring method of gas transfer diffusion coefficient in solid material.
Gas tank method is that measured material is placed on to the outlet at the middle part or single cabin in two cabins, by monitoring material two sides object gas
Concentration variation or detection equilibrium state target gas levels calculate the mass transfer characteristic parameter of material.If using two static state
Cabin, calculated result have uncertainty, so generally using dynamic cabin method to guarantee that measurement data is accurate.This side requires quilt
There are biggish pressure difference in test material two sides, because pressure difference is too small, operation difficulty is larger, and experimental period is too long, measure number
According to inaccurate.
Mass method is sealed material in the container equipped with liquid object gas, every a period of time measurement container mass variation
Amount, to calculate the mass transfer characteristic parameter of material.It is this that material is also required to have biggish infiltration capacity, otherwise gas transport speed
It crosses slowly, container mass variation is unobvious, and time of measuring is too long, and data are also inaccurate.For this purpose, being for the material of low-permeability
Increase infiltration capacity to be also required to increase the pressure difference of material two sides.
For the coating material of those low-intensity, low-permeability, volatile pernicious gas in artificial board is for example prevented to release
The clad (bond paper, coating etc.) put and be coated in plate surface is deposited if measuring its gas diffusivity using the above method
The problem of have:
Low-intensity coating material is not enough to bear the biggish pressure difference in two sides, it is not possible to accelerate using larger pressure difference
Gas transport rate；Coating material cannot independently form effective measurement shape, can not obtain greater role area, carry out data
Measurement；If increasing thickness, for the coating material of low-permeability, and gas diffusion amount data cannot be quickly obtained, if when measurement
Between it is too long, measurement data just inaccuracy.
Summary of the invention
The purpose of the present invention is to provide a kind of low-intensity, low-permeability coating material gas diffusivity measurement device and
Method, this method use porous ceramic support material, accelerate gas transport rate using the larger pressure difference of vacuum pump creation, right
In the coating material of low-permeability, stabilizing gas pressure and gas flux data also can be quickly obtained, measurement result is accurate.
The purpose of the present invention is what is be achieved through the following technical solutions:
Low-intensity, low-permeability coating material gas diffusivity measurement device, described device include that there are two in parallel
Vacuum chamber, measuring chamber and plenum chamber are connected by the bleed-off passage with sealing flange, sealing flange towards plenum chamber side,
Utilize the blank flange or test sample of flange gland and sealing ring sealing fixed disc shape；Plenum chamber is equipped with openable inflation
Room door, installs or removes blank flange or test sample；Plenum chamber is equipped with plenum chamber pressure gauge, with pressure-adjusting control valve
Loading line and pump-line with plenum chamber valve；Measuring chamber is equipped with measuring chamber pressure gauge and the pumping with measuring chamber valve
The background leak rate of feed channel, measuring chamber is relatively fixed；Plenum chamber exhaust pipe and measuring chamber exhaust pipe are after parallel pipeline
It is connect with vacuum pump bleeding point, vent valve is additionally provided on parallel pipeline.
The low-intensity, low-permeability coating material gas diffusivity measurement device, the measuring chamber and plenum chamber,
Or it is separated, circular hole is opened on intermediate bulkhead as bleed-off passage and is equipped with above-mentioned using intermediate bulkhead by a vacuum chamber body
Sealing flange.
The low-intensity, low-permeability coating material gas diffusivity measurement device, the test sample be with
Or the rounded porous ceramic disk without tested coating, and the circumferential side wall of the porous ceramics disk is closed with vacuum compound.
Low-intensity, low-permeability coating material gas diffusivity measuring method, the method includes the leakages of measuring chamber background
Gas rate measurement method measures tested diffusion coefficient method of the gas in coating material；
Measuring chamber background leak rate measurement method are as follows: plenum chamber door is opened, using flange gland and sealing ring by method tritonope
Plate sealing is mounted on the sealing flange among measuring chamber and plenum chamber, closes plenum chamber door；Open measuring chamber valve, starting
Vacuum pump is evacuated to its background operating pressure for measuring chamber, closes measuring chamber valve；Monitor the change of measuring chamber vacuum count value
Change, and records different momentsThe gas pressure of lower measuring chamber；After pressure changes linearly at any time, record measurement
RoomThe pressure at momentWithThe pressure at moment；Vacuum pump is shut down, vent valve is opened, device is made to restore normal
Pressure condition；Utilize the background leak rate of formula calculation and measurement room；
A kind of tested diffusion coefficient method of the gas in coating material is measured, is included the following steps:
A, the self-propagating coefficient for measuring porous ceramics disk, the side of the porous ceramics disk as test sample matrix is put down
Face is determined as working face, and is marked, and is distributed and takes pictures using the breathable microporous of the optical microscope inspection working face；It utilizes
Special image analysis software photograph image, calculates the area ratio of working face shared by breathable microporous；Utilize flange gland
On the sealing flange that the sealing of porous ceramics disk is mounted among measuring chamber and plenum chamber with sealing ring, make its working face court
To measuring chamber side, wherein the circular area of unsealed circuit covering is vapor permeation area on working face；Plenum chamber door is closed, is beaten
Plenum chamber valve and measuring chamber valve are opened, vacuum pump is started, is evacuated to background operating pressure for measuring chamber and plenum chamber；It closes
Plenum chamber valve opens pressure-adjusting control valve, and being filled with tested gas to pressure to plenum chamber is, makeAt least more than
1000 times, and maintain the tested gas pressure of plenum chamber constant；Measuring chamber valve is closed, and monitors the indoor pressure of measurement and becomes
Change, records different momentsThe gas pressure of lower measuring chamber；After pressure linearly increases at any time, measuring chamber is recorded
It is interiorThe gas pressure at momentWithThe gas pressure at moment；Pressure-adjusting control valve is closed, measurement is opened
Room valve and plenum chamber valve will be tested gas emptying in measuring chamber and plenum chamber；Shut down vacuum pump；Vent valve is opened, keeps device extensive
Multiple normal pressure state, the self-propagating coefficient of porous ceramics disk is calculated using formula；
B, the preparation of ceramic pan coating test sample, uniformly applies on the working face of porous ceramics disk and is covered with tested coating material
Material, reaches suitable thickness；It stands to being fully cured, it is spare that ceramic pan coating test sample is made；
C, the Comprehensive Diffusion Coefficient for measuring ceramic pan coating test sample, replaces step A with ceramic pan coating test sample
In porous ceramics disk, repeat step A；Inflating indoor tested gas pressure in control measurement process is, and monitor measurement
Gas pressure inside variation records in measuring chamber after measuring gas pressure inside linearly growth at any timeMoment
Gas pressureWithThe gas pressure at moment；The comprehensive of ceramic pan coating test sample is calculated using formula to expand
Dissipate coefficient；
D, coating layer thickness is measured, plenum chamber door is opened, unloads lower flange gland, ceramic pan coating is removed from sealing flange and is surveyed
Sample coupon carefully can be such that coating takes off the coating easily taken off from porous ceramics disk, directly measurement coating layer thickness,
For being not easy the coating taken off, the ceramic disk of ceramic pan coating test sample can be broken into pieces, observe coating under an optical microscope
Cross section measures coating layer thickness；
E, the diffusion coefficient of coating is calculated, diffusion coefficient of the gas in tested coating material is measured and is calculated using formula
It can obtain.
The low-intensity, low-permeability coating material gas diffusivity measuring method, described calculated using formula are surveyed
Measure the background leak rate of room are as follows:
；
In formula--- the background leak rate of measuring chamber
--- the volume of measuring chamber
--- timing initial time
--- the timer expiration time
--- the gas pressure of timing initial time measuring chamber
--- the gas pressure of timer expiration moment measuring chamber 。
The low-intensity, low-permeability coating material gas diffusivity measuring method, it is described calculated using formula it is more
The self-propagating coefficient of hole ceramic disk is；
；
In formula--- the self-propagating coefficient of porous ceramics disk
--- timing initial time
--- the timer expiration time
--- the gas pressure of timing initial time measuring chamber
--- the gas pressure of timer expiration moment measuring chamber
--- indoor tested gas pressure is inflated in measurement process
--- the thickness of porous ceramics disk
--- the vapor permeation area of porous ceramics disk
--- the volume of measuring chamber
--- the background leak rate of measuring device。
The low-intensity, low-permeability coating material gas diffusivity measuring method, it is described to calculate pottery using formula
The Comprehensive Diffusion Coefficient of porcelain dish coating test sample are as follows:
In formula--- the Comprehensive Diffusion Coefficient of ceramic pan coating test sample
--- timing initial time
--- the timer expiration time
--- the gas pressure of timing initial time measuring chamber
--- the gas pressure of timer expiration moment measuring chamber
--- the tested gas pressure of plenum chamber in measurement process
--- the volume of measuring chamber
--- the background leak rate of measuring device
--- the vapor permeation area of porous ceramics disk
--- the thickness of porous ceramics disk
The low-intensity, low-permeability coating material gas diffusivity measuring method, the diffusion for calculating coating
Coefficient is measured diffusion coefficient of the gas in tested coating material and is calculated using formula are as follows:
；
In formula--- it is measured the diffusion coefficient of coating
--- it is measured the thickness of coating
--- the area ratio of working face shared by breathable microporous
--- the thickness of porous ceramics disk
--- the self-propagating coefficient of porous ceramics disk
--- the Comprehensive Diffusion Coefficient of ceramic pan coating test sample。
The advantages and effects of the present invention are:
Using diffusion coefficient measuring device provided by the invention and strategy process, its main feature is that:
Even if coating material intensity is low, due to using porous ceramic support material, it is sufficient to bear the biggish pressure difference in two sides；
Using the supporting role of porous ceramic film material, effective measurement shape is obtained；Very thin coating material can be used to measure,
It can accelerate gas transport rate using the larger pressure difference of vacuum pump creation, it, also can be quick for the coating material of low-permeability
It obtains stabilizing gas pressure and gas flux data, measurement result is accurate.
Detailed description of the invention
Fig. 1 is measuring device structural schematic diagram provided by the invention.
1- measuring chamber in figure, 2- measuring chamber vacuum meter, 3- blank flange or test sample, 4- flange gland, 5- plenum chamber
Pressure gauge, 6- pressure control to adjust valve, 7- plenum chamber, 8 plenum chamber doors, 9 vacuum pumps, 10- plenum chamber valve, 11- vent valve, 12-
Measuring chamber valve, 13- sealing ring, 14- sealing flange, 15- intermediate bulkhead.
Specific embodiment
The present invention is described in detail for illustrated embodiment with reference to the accompanying drawing.
Reason of the present invention partially forms as follows: two vacuum chambers in parallel --- it has been determined that the measurement of background leak rate
Room 1 and plenum chamber 7 are to be separated by a vacuum chamber body using intermediate bulkhead 15, and circular hole is opened up on intermediate bulkhead as pumping
Gas channel is simultaneously equipped with sealing flange 14, and sealing flange 14, can be with using flange gland 4 and sealing ring 13 towards 7 side of plenum chamber
Seal the blank flange or test sample 3 of fixed disc shape；Plenum chamber 7 is equipped with openable plenum chamber door 8 for installing or tearing open
Unload blank flange or test sample 3；Plenum chamber 7 is equipped with plenum chamber pressure gauge 5, the gas tube with pressure-adjusting control valve 6
Road and pump-line with plenum chamber valve 10；Measuring chamber 1 is equipped with measuring chamber vacuum meter 2 and the pumping with measuring chamber valve 12
Pipeline, the volume of measuring chamber 1；Plenum chamber exhaust pipe and measuring chamber exhaust pipe are through simultaneously
9 bleeding point of union Lu Houyu vacuum pump connects, and is additionally provided with vent valve 10 on parallel pipeline.
Above-mentioned test sample 3 is tested the rounded porous ceramic disk of coating, and the porous ceramics disk for or without
Circumferential side wall closed with vacuum compound.For same kind of gas, the self-propagating system of the same porous ceramics disk
Number is identical.The measurement method of above-mentioned device background leak rate is as follows:
Plenum chamber door 8 is opened, the sealing of blank flange 3 is mounted on measuring chamber 1 using flange gland 4 and sealing ring 13
On the sealing flange 14 among plenum chamber 7, plenum chamber door 8 is closed；Measuring chamber valve 12 is opened, vacuum pump 9 is started, is measuring chamber
1 is evacuated to its background operating pressure, closes measuring chamber valve 12；Monitor measuring chamber vacuum meter 2 numerical value change, when pressure at any time
Between change linearly after, record measuring chamber 1 existThe pressure at momentWithThe pressure at moment；Vacuum pump 9 is shut down, vent valve 11 is opened, makes to fill
Set recovery normal pressure state；The background leak rate of device is calculated as follows:
；
In formula --- the background leak rate of device
--- the volume of measuring chamber 1
--- timing initial time
--- the timer expiration time
--- the gas pressure of timing initial time measuring chamber 1
--- the gas pressure of timer expiration moment measuring chamber 1
It is calculated。
Using above-mentioned measuring device, helium mass transfer diffusion coefficient in certain topcoat material is measured, comprising the following steps:
1, the self-propagating coefficient of porous ceramics disk 3 is measured
Thickness of the measurement as the porous ceramics disk of test sample matrix.By porous ceramics
One side plane of disk 3 is determined as working face, and is marked, and the breathable microporous distribution of the optical microscope inspection working face is utilized
And it takes pictures；Using special image analysis software photograph image, the area ratio of working face shared by breathable microporous is calculated；The sealing of porous ceramics disk 3 is mounted on measuring chamber 1 and inflation using flange gland 4 and sealing ring 13
On sealing flange 14 among room 7, make its working face towards 1 side of measuring chamber, measures unsealed circuit covering on working face
Circular area (i.e. flange endoporus area) is vapor permeation area；Plenum chamber door 8 is closed, opening is filled
Air-chamber valve 10 and measuring chamber valve 12 start vacuum pump 9, are evacuated to background operating pressure for measuring chamber 1 and plenum chamber 7；Plenum chamber valve 10 is closed, pressure-adjusting control valve 6 is opened to plenum chamber 7 and is filled with tested gas extremely
Gas pressure is, maintain the tested gas pressure of plenum chamber 7 constant；Measuring chamber valve 12 is closed, and is monitored
Pressure change in measuring chamber 1 records in measuring chamber 1 after pressure linearly increases at any timeMoment
Gas pressureWithThe gas pressure at moment；Pressure-adjusting control valve 6 is closed, measuring chamber valve 12 and plenum chamber valve 10 are opened, by measuring chamber 1
It is emptied with gas is tested in plenum chamber 7；Shut down vacuum pump 9；Vent valve is opened, so that device is restored normal pressure state, as follows
Calculate the self-propagating coefficient of porous ceramics disk:
；
In formula--- the self-propagating coefficient of porous ceramics disk
--- timing initial time
--- the timer expiration time
--- the gas pressure of timing initial time measuring chamber 1
--- the gas pressure of timer expiration moment measuring chamber 1
--- the background leak rate of device
--- the tested gas pressure in measurement process in plenum chamber 7
--- the thickness of porous ceramics disk 3
--- the vapor permeation area of porous ceramics disk 3
It is calculated。
2, the preparation of porous ceramics pan coating test sample
It is uniformly coated with tested finishing coat on the working face of porous ceramics disk 3, reaches suitable thickness；It stands to completely solid
Change, it is spare that ceramic pan coating test sample 3 is made.
3, the Comprehensive Diffusion Coefficient of ceramic pan coating test sample 3 is measured
The porous ceramics disk 3 in step 1 is replaced with ceramic pan coating test sample 3, repeats step 1；Control measurement process
Tested gas pressure in middle plenum chamber 7, and gas pressure change in measuring chamber 1 is monitored, work as measurement
After gas pressure linearly increases at any time in room 1, record in measuring chamber 1The gas pressure at momentThe gas pressure at moment；By following public affairs
Formula calculates the Comprehensive Diffusion Coefficient of ceramic pan coating test sample 3:
In formula--- the Comprehensive Diffusion Coefficient of ceramic pan coating test sample 3
--- timing initial time
--- the timer expiration time
--- the gas pressure of timing initial time measuring chamber 1
--- the gas pressure of timer expiration moment measuring chamber 1
--- the tested gas pressure of plenum chamber 7 in measurement process
--- the background leak rate of device
--- the thickness of porous ceramics disk 3
--- the vapor permeation area of porous ceramics disk 3
It is calculated。
4, coating layer thickness is measured
Plenum chamber door 8 is opened, lower flange gland 4 is unloaded, ceramic pan coating test sample 3 is removed from sealing flange 14；It will
The ceramic disk of ceramic pan coating test sample 3 is broken into pieces, observes coating cross section under an optical microscope, measures coating layer thickness。
5, the diffusion coefficient of coating is calculated
Being measured diffusion coefficient of the gas in tested coating material can be used following formula to calculate:
；
In formula--- it is measured the diffusion coefficient of coating
--- it is measured the thickness of coating
--- the area ratio of working face shared by breathable microporous
--- the thickness of porous ceramics disk
--- the self-propagating coefficient of porous ceramics disk
--- the Comprehensive Diffusion Coefficient of ceramic pan coating test sample。
It is calculated。
Claims (2)
1. low-intensity, low-permeability coating material gas diffusivity measurement device, including there are two vacuum chambers in parallel ---
Measuring chamber and plenum chamber are connected by the bleed-off passage with sealing flange；Or intermediate bulkhead point is utilized by a vacuum chamber body
Every forming, circular hole is opened on intermediate bulkhead as bleed-off passage and is equipped with sealing flange, sealing flange is towards plenum chamber side, benefit
With the blank flange or test sample of flange gland and sealing ring sealing fixed disc shape；Plenum chamber is equipped with openable plenum chamber
Door installs or removes blank flange or test sample；Plenum chamber is equipped with plenum chamber pressure gauge, with pressure-adjusting control valve
Loading line and pump-line with plenum chamber valve；Measuring chamber is equipped with measuring chamber pressure gauge and the pumping with measuring chamber valve
The background leak rate of pipeline, measuring chamber is relatively fixed；Plenum chamber exhaust pipe and measuring chamber exhaust pipe after parallel pipeline with
Vacuum pump bleeding point connects, and is additionally provided with vent valve on parallel pipeline；It is characterized in that, the test sample is with or without
The rounded porous ceramic disk of tested coating, and the circumferential side wall of the porous ceramics disk is closed with vacuum compound.
2. low-intensity, low-permeability coating material gas diffusivity measuring method, which is characterized in that the method includes measurements
Room background leak rate measurement method measures tested diffusion coefficient method of the gas in coating material；
Measuring chamber background leak rate measurement method are as follows: plenum chamber door is opened, it is using flange gland and sealing ring that blank flange is close
Envelope is mounted on the sealing flange among measuring chamber and plenum chamber, closes plenum chamber door；Measuring chamber valve is opened, vacuum is started
Pump is evacuated to its background operating pressure for measuring chamber, closes measuring chamber valve；The variation of measuring chamber vacuum count value is monitored, and
Record different momentsThe gas pressure of lower measuring chamber；After pressure changes linearly at any time, measuring chamber is recordedThe pressure at momentWithThe pressure at moment；Vacuum pump is shut down, vent valve is opened, restores device
Normal pressure state；Utilize the background leak rate of following formula calculation and measurement room are as follows:
；
In formula--- the background leak rate of measuring chamber
。
A kind of tested diffusion coefficient method of the gas in coating material is measured, is included the following steps:
A, the self-propagating coefficient for measuring porous ceramics disk, by the side plane as the porous ceramics disk of test sample matrix
It is determined as working face, and is marked, is distributed and takes pictures using the breathable microporous of the optical microscope inspection working face；Using special
Photograph image is analyzed with image analysis software, calculates the area ratio of working face shared by breathable microporous；Using flange gland and
On the sealing flange that the sealing of porous ceramics disk is mounted among measuring chamber and plenum chamber by sealing ring, make its working face direction
Measuring chamber side, wherein the circular area of unsealed circuit covering is vapor permeation area on working face；Plenum chamber door is closed, is opened
Plenum chamber valve and measuring chamber valve start vacuum pump, are evacuated to background operating pressure for measuring chamber and plenum chamber；Closing is filled
Air-chamber valve opens pressure-adjusting control valve, and being filled with tested gas to pressure to plenum chamber is, makeAt least more than's
1000 times, and maintain the tested gas pressure of plenum chamber constant；Measuring chamber valve is closed, and monitors the indoor pressure change of measurement,
Record different momentsThe gas pressure of lower measuring chamber；After pressure linearly increases at any time, record in measuring chamberThe gas pressure at momentWithThe gas pressure at moment；Pressure-adjusting control valve is closed, measuring chamber is opened
Valve and plenum chamber valve will be tested gas emptying in measuring chamber and plenum chamber；Shut down vacuum pump；Vent valve is opened, device is restored
Normal pressure state, the self-propagating coefficient using following formula calculating porous ceramics disk are；
；
In formula--- the self-propagating coefficient of porous ceramics disk
；
B, the preparation of ceramic pan coating test sample, uniformly applies on the working face of porous ceramics disk and is covered with tested coating material,
Reach suitable thickness；It stands to being fully cured, it is spare that ceramic pan coating test sample is made；
C, the Comprehensive Diffusion Coefficient for measuring ceramic pan coating test sample, is replaced in step a with ceramic pan coating test sample
Porous ceramics disk repeats step a；Inflating indoor tested gas pressure in control measurement process is, and monitor in measuring chamber
Gas pressure change records in measuring chamber after measuring gas pressure inside linearly growth at any timeThe gas at moment
PressureWithThe gas pressure at moment；The comprehensive of ceramic pan coating test sample is calculated using following formula to expand
Dissipate coefficient are as follows:
In formula--- the Comprehensive Diffusion Coefficient of ceramic pan coating test sample
D, coating layer thickness is measured, plenum chamber door is opened, unloads lower flange gland, ceramic pan coating test specimens are removed from sealing flange
Part carefully can be such that coating takes off the coating easily taken off from porous ceramics disk, directly measurement coating layer thickness, for
It is not easy the coating taken off, the ceramic disk of ceramic pan coating test sample can be broken into pieces, it is cross-section to observe coating under an optical microscope
Face measures coating layer thickness；
E, the diffusion coefficient of coating is calculated, diffusion coefficient of the gas in tested coating material is measured and is calculated using following formula
It can obtain:
；
In formula。
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101246095A (en) * | 2008-01-07 | 2008-08-20 | 电子科技大学 | Device and method for measuring air permeability of isolation material |
| CN101650338A (en) * | 2009-09-04 | 2010-02-17 | 清华大学 | Experiment system for determining proton transfer characteristic parameters of building material surface barrier layer |
| CN103115858A (en) * | 2013-01-24 | 2013-05-22 | 电子科技大学 | Measuring device and measuring method for measuring gas permeability of material |
| CN104729973A (en) * | 2015-04-15 | 2015-06-24 | 合肥工业大学 | Thin-film permeameter and measuring method thereof |
| CN105352855A (en) * | 2015-12-01 | 2016-02-24 | 中国建筑材料科学研究总院 | System and method for measuring gas diffusion performance of coating |
| CN105547956A (en) * | 2015-12-10 | 2016-05-04 | 电子科技大学 | Device and method for measuring gas permeability of thin film by using vacuometer |
-
2016
- 2016-06-03 CN CN201610387014.2A patent/CN106092826B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101246095A (en) * | 2008-01-07 | 2008-08-20 | 电子科技大学 | Device and method for measuring air permeability of isolation material |
| CN101650338A (en) * | 2009-09-04 | 2010-02-17 | 清华大学 | Experiment system for determining proton transfer characteristic parameters of building material surface barrier layer |
| CN103115858A (en) * | 2013-01-24 | 2013-05-22 | 电子科技大学 | Measuring device and measuring method for measuring gas permeability of material |
| CN104729973A (en) * | 2015-04-15 | 2015-06-24 | 合肥工业大学 | Thin-film permeameter and measuring method thereof |
| CN105352855A (en) * | 2015-12-01 | 2016-02-24 | 中国建筑材料科学研究总院 | System and method for measuring gas diffusion performance of coating |
| CN105547956A (en) * | 2015-12-10 | 2016-05-04 | 电子科技大学 | Device and method for measuring gas permeability of thin film by using vacuometer |
Non-Patent Citations (2)
| Title |
|---|
| 三种聚合物薄膜氦渗透率的测试;董栋 等;《真空》;20151130;第52卷(第6期);第6-9页 |
| 基于ADUC848 的压差法气体透过率测试仪研制;林春景等;《现代电子技术》;20151101;第38卷(第21期);第133-135页 |
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Application publication date: 20161109 Assignee: LIAOYANG TAIKE LEINUO SCIENCE & TECHNOLOGY CO., LTD. Assignor: Shenyang Univ. Contract record no.: X2019210000023 Denomination of invention: Apparatus and method for determining gas diffusion coefficient of low-intensity low-permeability coating material Granted publication date: 20190423 License type: Exclusive License Record date: 20191030 |
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Effective date of registration: 20201027 Address after: No.8-1, Lanjia Hutong, Xixian street, Hongwei District, Liaoyang City, Liaoning Province Patentee after: Liaoning Boshi Venture Service Center Management Co., Ltd Address before: 110044 Liaoning Province, Shenyang City District wanghuanan Street No. 21 Patentee before: SHENYANG University |