CN210427282U - Sandwich effect surface tension testing arrangement based on principle of weighing - Google Patents
Sandwich effect surface tension testing arrangement based on principle of weighing Download PDFInfo
- Publication number
- CN210427282U CN210427282U CN201920881222.7U CN201920881222U CN210427282U CN 210427282 U CN210427282 U CN 210427282U CN 201920881222 U CN201920881222 U CN 201920881222U CN 210427282 U CN210427282 U CN 210427282U
- Authority
- CN
- China
- Prior art keywords
- surface tension
- liquid inlet
- sample cell
- feed liquor
- testing
- 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.)
- Withdrawn - After Issue
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 80
- 230000000694 effects Effects 0.000 title claims abstract description 35
- 238000005303 weighing Methods 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 80
- 239000000523 sample Substances 0.000 claims abstract description 66
- 239000004094 surface-active agent Substances 0.000 claims description 39
- 238000005259 measurement Methods 0.000 abstract description 19
- 238000001179 sorption measurement Methods 0.000 abstract description 7
- 238000004458 analytical method Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 43
- 230000008859 change Effects 0.000 description 26
- 238000000034 method Methods 0.000 description 25
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 21
- 239000002904 solvent Substances 0.000 description 12
- 229910052697 platinum Inorganic materials 0.000 description 8
- 239000012153 distilled water Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000576 coating method Methods 0.000 description 2
- 239000002537 cosmetic Substances 0.000 description 2
- 238000010191 image analysis Methods 0.000 description 2
- 238000003703 image analysis method Methods 0.000 description 2
- 239000000976 ink Substances 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- PRPINYUDVPFIRX-UHFFFAOYSA-N 1-naphthaleneacetic acid Chemical compound C1=CC=C2C(CC(=O)O)=CC=CC2=C1 PRPINYUDVPFIRX-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- -1 coatings Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a sandwich effect surface tension testing arrangement based on principle of weighing belongs to interface chemical analysis test technical field. Including test sample cell, test probe, layering sample cell, tee bend, feed liquor pump and liquid reserve tank, the layering sample cell sets up the test sample cell middle part falls into the test sample cell and holds the district and hold the district down, has the shunt tubes that are linked together with the upper and lower holding area in the test sample cell on the layering sample cell, the tee bend holds the district intercommunication, holds the district with holding down through lower floor's feed liquor pipe through upper feed liquor pipe and test sample cell on, be provided with upper feed liquor valve on the upper feed liquor pipe, be provided with lower floor's feed liquor valve on the lower floor's feed liquor pipe, the tee bend still through the pipeline with the liquid reserve tank is linked together, is provided with the feed liquor pump on the pipeline of both intercommunications. The device can simultaneously measure the layered surface tension value and the dynamic adsorption time thereof, has high measurement precision and convenient operation, and has very high popularization value.
Description
Technical Field
The utility model relates to a sandwich effect surface tension testing arrangement based on principle of weighing belongs to interface chemical analysis test technical field.
Background
Surface tension is one of the important indicators characterizing the physicochemical properties of a material. The surface tension has different sizes, and plays a key role in adhesion, adsorption, foaming and other phenomena. From the viewpoint of the test principle, the existing surface tension measurement methods are mainly classified into a weighing principle (including a platinum Plate method (Wilhelmy Plate method), a platinum Ring method (DuNouy Ring method)), an image analysis principle (including a pendant drop method or a stop drop method, a spin drop method), a maximum bubble method (Max bubble pressure), and a drop volume method, and the like.
Shanghai Cllon patent device for detecting SDS (patent No. 201621251068.8) and method and device for detecting SDS (patent No. 201611028923.3) by using surface tension sandwich effect firstly propose the phenomenon of surface tension sandwich effect and a detection method based on image analysis method for the surface tension sandwich effect for detecting milk quality. In 2018, the company provides a method for measuring the sandwich effect surface tension of an ultrahigh-temperature melt in a device for testing the interfacial rheology and the sandwich effect surface tension of the ultrahigh-temperature melt (patent number: 201811228394.0). However, the above methods are all based on the measurement of image analysis principle, and the measurement precision cannot meet the requirement of high precision.
Based on the surface tension sandwich effect proposed by Shanghai Clontecha, the obvious phenomenon of inconsistent surface tensions of an upper layer and a lower layer exists in a surfactant, a suspension and a compounded liquid. However, the current testing methods can only realize the measurement of the surface tension of a single layer, for example, the platinum plate or platinum ring method based on the weighing principle can only measure the surface tension of an upper layer, the pendant drop method based on the image method can only measure the surface tension of a lower layer, the drop stop method can only measure the surface tension of the upper layer, the maximum bubble method and the rotating drop method can only measure the surface tension of the upper layer, and the drop volume method can only measure the surface tension of the lower layer. Thus, the measurement of the surface tension sandwich effect for the weighing principle is an urgent need to achieve high precision, advanced testing.
Shanghai Cllon's instrument for testing liquid-gas surface tension and liquid-liquid interfacial tension by platinum plate method' (patent number 201020159905.0) proposes a high-precision test structure based on platinum plate method, and adopts a precision optical translation table as a lifting mechanism. A novel surface tension testing device with a C-shaped support structure and a surface tension testing algorithm based on an Asha algorithm are provided in a patent (patent number: 201420747778.4) and a patent (patent number: 201410722554.2) for an interfacial tension and contact angle testing device based on an analytical balance and a testing method for the interfacial tension and contact angle based on the analytical balance, so that the dynamic analysis of the surface tension can be realized. However, in the surface tension test algorithm based on the arsha algorithm, the buoyancy effect cannot be dynamically corrected when the method is used for evaluating the sandwich effect, and further the high-precision requirement of surface tension sandwich effect measurement cannot be met.
In a surface tension meter based on a commercial weighing principle, a platinum ring method needs to immerse a platinum ring and then pull up the platinum ring to the maximum liquid film pulling height, and then the surface tension value can be measured; the platinum plate method comprises the steps of immersing a platinum plate to a certain depth, then drawing the platinum plate to the maximum height, separating or drawing the platinum plate back to the height value of the immersion depth, measuring data of set quantity, and then automatically leaving the liquid level; therefore, the above measurements are all static measurement techniques (a certain measurement point), and dynamic surface tension measurement cannot be realized.
The sample cell used for testing the surface tension at present is a simple cup-shaped sample, and cannot form an effective layering effect, so that the purpose of measuring the sandwich effect surface tension cannot be realized.
Therefore, a testing device and a testing method for testing the sandwich effect of the surface tension by using a high-precision and high-speed analytical balance are urgently needed. The high-precision sandwich surface tension analysis device meets the research and development requirements of industries such as petroleum and petrochemical industry, new materials, coating, ink, cosmetics and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: the testing device capable of measuring the surface tension sandwich effect solves the problem that the existing image analysis method surface tension sandwich effect testing device is low in measurement precision.
The utility model discloses the technical problem that will solve takes following technical scheme to realize:
a sandwich effect surface tension testing device based on weighing principle comprises a testing sample pool, a testing probe, a layered sample pool, a tee joint, a liquid inlet pump and a liquid storage pool, wherein the layered sample pool is arranged in the middle of the testing sample pool and divides the testing sample pool into an upper containing area and a lower containing area, a shunt pipe which is used for communicating the upper containing area and the lower containing area in the testing sample pool is arranged on the layered sample pool, the tee joint is communicated with the upper containing area of the testing sample pool through an upper liquid inlet pipe and is communicated with the lower containing area through a lower liquid inlet pipe, an upper liquid inlet valve is arranged on the upper liquid inlet pipe, a lower liquid inlet valve is arranged on the lower liquid inlet pipe, the tee joint is also communicated with the liquid storage pool through a pipeline, a liquid inlet pump is arranged on the pipeline which is communicated with the upper containing area of the testing sample pool, a middle surfactant layer and a lower surfactant layer are arranged in the lower containing area, the test probe is positioned in the test sample pool, is contacted with the upper surface of the upper surfactant layer and keeps the position unchanged.
As a preferred example, a step is provided in the test sample cell, and the layered sample cell is provided on the step.
As a preferred example, the shunt pipe is far away from the upper layer liquid inlet pipe and the lower layer liquid inlet pipe.
Specifically, during testing, a solvent (distilled water) is firstly filled into a test sample pool, the surface tension of the solvent is tested firstly, the position of a test probe is kept still, the software is used for continuously recording a measurement result and a change curve of the measurement result, an upper layer liquid inlet valve is kept closed, a lower layer liquid inlet valve is opened, a liquid inlet pump is started, a surfactant (solute) is enabled to be dripped into the solvent through a lower layer liquid inlet pipe, buoyancy change caused by liquid level rising due to surfactant (solute) dripping is automatically corrected through the software, a finally corrected surface tension value is obtained, and the surface tension change at the moment is observed.
The surface tension value of the solvent is tested again, the position of the test probe is kept still, the measurement result and the change curve of the measurement result are continuously recorded by software, the lower liquid inlet valve is closed, the upper liquid inlet valve is opened, the liquid inlet pump is started, the surfactant is dripped into the solvent through the upper liquid inlet pipe, the buoyancy change caused by the rise of the liquid level due to the dripping of the surfactant is automatically corrected by the software, the finally corrected surface tension value is obtained, and the surface tension change at the moment is observed.
Comparing the change results of the surface tension of the upper layer and the surface tension of the lower layer of the surfactant solution, the sandwich effect of the obtained surface tension and the dynamic adsorption time thereof can be evaluated.
The utility model has the advantages that the surface tension of the surfactant is measured, and the surfactant (solute) is dripped into the dynamic change result of the surface tension in the distilled water (solvent) from the upper layer liquid inlet pipe and the lower layer liquid inlet pipe after the sandwich effect sample vessel is adopted; or by measuring the dynamic change of the surface tension of the upper surfactant layer after the surfactants are added from the upper liquid inlet pipe and the lower liquid inlet pipe, evaluating the dynamic change of the surface tension and the change of the result thereof, and evaluating the surface tension sandwich effect and the dynamic adsorption condition thereof, the purpose of measuring the surface tension sandwich effect is achieved, a reliable material analysis tool can be provided for industries of petroleum and petrochemical, new materials, coatings, inks, cosmetics and the like, the measurement value precision is high, the operation is convenient, and the popularization value is very high.
Drawings
Fig. 1 is a schematic structural diagram of a testing device of the present invention;
FIG. 2 is a top view of a layered sample cell.
In the figure: the device comprises a test sample tank 1, a test probe 2, an upper surfactant layer 3, an upper liquid inlet pipe 4, an upper liquid inlet valve 5, a layered sample tank 6, a middle surfactant layer 7, a lower surfactant layer 8, a lower liquid inlet pipe 9, a lower liquid inlet valve 10, a tee joint 11, a surfactant 12, a liquid storage tank 13 and a shunt pipe 14.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, the present invention is further explained by combining the following specific drawings.
As shown in fig. 1 and 2, a sandwich effect surface tension testing device based on weighing principle comprises a testing sample pool 1, a testing probe 2, a layered sample pool 6, a tee joint 11, a liquid inlet pump and a liquid storage pool 13, wherein the layered sample pool 6 is arranged in the middle of the testing sample pool 1 to divide the testing sample pool 1 into an upper containing area and a lower containing area, the layered sample pool 6 is provided with a shunt pipe 14 for communicating the upper containing area and the lower containing area in the testing sample pool 1, the tee joint 11 is communicated with the upper containing area of the testing sample pool 1 through an upper liquid inlet pipe 4 and is communicated with the lower containing area through a lower liquid inlet pipe 9, the upper liquid inlet pipe 4 is provided with an upper liquid inlet valve 5, the lower liquid inlet pipe 9 is provided with a lower liquid inlet valve 10, the tee joint 11 is also communicated with the liquid storage pool 13 through a pipeline, the liquid inlet pump is arranged on the pipeline communicated with the upper containing area of the testing sample pool 1, the upper containing area is provided with an upper surfactant layer 3(, the lower containing area is internally provided with an intermediate surfactant layer 7 and a lower surfactant layer 8, the test probe 2 is positioned in the test sample pool 1 and is in contact with the upper surface of the upper surfactant layer 3 and keeps the position unchanged, and the liquid storage pool 13 is internally provided with a surfactant 12.
Further, a step is arranged in the test sample cell 1, and the layered sample cell 6 is arranged on the step.
Further, the shunt pipe 14 is far away from the upper layer liquid inlet pipe 4 and the lower layer liquid inlet pipe 9.
In addition, a sandwich effect surface tension testing method based on a weighing principle is further provided, and a sandwich effect value is obtained by measuring the dynamic change of the surface tension of the upper surfactant layer 3 after the surfactants are added from the upper layer liquid inlet pipe 4 and the lower layer liquid inlet pipe 9 by adopting the testing device recorded in the application.
Specifically, during testing, a solvent (distilled water) is firstly filled into a test sample cell 1, the surface tension of the solvent is tested firstly, the position of a test probe 2 is kept still, software is used for continuously recording a measurement result and a change curve of the measurement result, an upper layer liquid inlet valve 5 is kept closed, a lower layer liquid inlet valve 10 is opened, a liquid inlet pump is started, a surfactant (solute) is dripped into the solvent through a lower layer liquid inlet pipe 9, buoyancy change caused by liquid level rising due to surfactant (solute) dripping is automatically corrected through the software, a finally corrected surface tension value is obtained, and the surface tension change at the moment is observed.
The surface tension value of the solvent is tested again, the position of the test probe 2 is kept still, the measurement result and the change curve of the measurement result are continuously recorded by software, the lower liquid inlet valve 10 is closed, the upper liquid inlet valve 5 is opened, the liquid inlet pump is started, the surfactant is dripped into the solvent through the upper liquid inlet pipe 4, the buoyancy change caused by the rise of the liquid level due to the dripping of the surfactant is automatically corrected by the software, the finally corrected surface tension value is obtained, and the surface tension change at the moment is observed.
Comparing the change results of the surface tension of the upper layer and the surface tension of the lower layer of the surfactant solution, the sandwich effect of the obtained surface tension and the dynamic adsorption time thereof can be evaluated.
Furthermore, by measuring the dynamic change of the surface tension of the upper surface active agent layer 3 after adding the surface active agents from the upper layer liquid inlet pipe 4 and the lower layer liquid inlet pipe 9, the dynamic change of the surface tension and the change of the result thereof are evaluated, the surface tension sandwich effect and the dynamic adsorption condition thereof are evaluated, and a more accurate surface tension value is obtained by automatically correcting the buoyancy value in the test process.
Further, the position of the test probe 2 remains unchanged during the test.
By measuring the surface tension of the surfactant and adopting a sandwich effect sample vessel, the surfactant (solute) is dripped into the dynamic change result of the surface tension of the distilled water (solvent) from the upper layer liquid inlet pipe 4 and the lower layer liquid inlet pipe 9; or the dynamic change of the surface tension of the upper surfactant layer 3 after the surfactants are added from the upper liquid inlet pipe 4 and the lower liquid inlet pipe 9 is measured, the dynamic change of the surface tension and the change of the result thereof are evaluated, and the surface tension sandwich effect and the dynamic adsorption condition thereof are evaluated, so that the purpose of measuring the surface tension sandwich effect is realized.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A sandwich effect surface tension testing device based on a weighing principle is characterized by comprising a testing sample pool, a testing probe, a layered sample pool, a tee joint, a liquid inlet pump and a liquid storage pool, wherein the layered sample pool is arranged in the middle of the testing sample pool and divides the testing sample pool into an upper containing area and a lower containing area, a shunt pipe for communicating the upper containing area and the lower containing area in the testing sample pool is arranged on the layered sample pool, the tee joint is communicated with the upper containing area of the testing sample pool through an upper liquid inlet pipe and communicated with the lower containing area through a lower liquid inlet pipe, an upper liquid inlet valve is arranged on the upper liquid inlet pipe, a lower liquid inlet valve is arranged on the lower liquid inlet pipe, the tee joint is also communicated with the liquid storage pool through a pipeline, a liquid inlet pump is arranged on the pipeline communicated with the tee joint, the upper containing area of the testing sample pool is provided with an upper surfactant layer, and a middle surfactant layer and a lower surfactant layer are arranged in the, the test probe is positioned in the test sample pool, is contacted with the upper surface of the upper surfactant layer and keeps the position unchanged.
2. The sandwich effect surface tension testing device based on the weighing principle as claimed in claim 1, wherein a step is arranged in the test sample cell, and the layered sample cell is arranged on the step.
3. The device for testing the surface tension of a sandwich effect based on the weighing principle as claimed in claim 1, wherein the shunt tube is far away from the upper layer liquid inlet pipe and the lower layer liquid inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920881222.7U CN210427282U (en) | 2019-06-12 | 2019-06-12 | Sandwich effect surface tension testing arrangement based on principle of weighing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920881222.7U CN210427282U (en) | 2019-06-12 | 2019-06-12 | Sandwich effect surface tension testing arrangement based on principle of weighing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210427282U true CN210427282U (en) | 2020-04-28 |
Family
ID=70374987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920881222.7U Withdrawn - After Issue CN210427282U (en) | 2019-06-12 | 2019-06-12 | Sandwich effect surface tension testing arrangement based on principle of weighing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210427282U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146417A (en) * | 2019-06-12 | 2019-08-20 | 上海梭伦信息科技有限公司 | A kind of sandwich effect surface tension test device and method based on weighing principle |
-
2019
- 2019-06-12 CN CN201920881222.7U patent/CN210427282U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146417A (en) * | 2019-06-12 | 2019-08-20 | 上海梭伦信息科技有限公司 | A kind of sandwich effect surface tension test device and method based on weighing principle |
| CN110146417B (en) * | 2019-06-12 | 2024-08-27 | 上海梭伦信息科技有限公司 | Sandwich effect surface tension testing device and method based on weighing principle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103512821A (en) | Method for testing liquid absorption rate of battery diaphragm | |
| CN104990862B (en) | The thin liquid film corrosion testing apparatus of thickness of liquid film can be automatically controlled | |
| CN210427282U (en) | Sandwich effect surface tension testing arrangement based on principle of weighing | |
| CN204832000U (en) | Thin liquid film corrosion experiment device of constant temperature and humidity of steerable oxygen content | |
| CN113358542A (en) | Device and method for testing fluid displacement efficiency in different pore throat size ranges | |
| CN204988979U (en) | Thin liquid film corrosion test device of automatic control thickness of liquid film | |
| CN110646323A (en) | Device and method for measuring liquid density by using equal-volume static buoyancy comparison method | |
| CN209821099U (en) | Multifunctional compact gas reservoir dynamic parameter joint measurement device based on nuclear magnetic resonance | |
| CN205426442U (en) | Wrapping bag leakage detecting device | |
| CN215640707U (en) | Measuring device for gas production rate of silicon-based negative electrode slurry | |
| CN110146417B (en) | Sandwich effect surface tension testing device and method based on weighing principle | |
| CN103278430A (en) | Low-permeability rock core start-up pressure gradient testing device | |
| US4089652A (en) | Detection of water in oil | |
| CN202494612U (en) | Liquid densimeter | |
| CN105628119B (en) | Micro-flow measuring device for capillary bundle | |
| CN206557046U (en) | A kind of Ubbelohde viscometer of improvement | |
| CN212483251U (en) | Testing device for molecular membrane layering dynamic adsorption and interface rheology | |
| CN212340917U (en) | Accurate measuring device of thrombus density | |
| CN109115298B (en) | Method and device for measuring volume of irregular-shaped catalytic unit | |
| CN206891892U (en) | A kind of water absorption rate test frock | |
| JP4786740B2 (en) | Powder penetration rate detection method, powder penetration rate inspection column filling device, powder penetration rate detection device | |
| CN110286081B (en) | Pure water immersion type immersion corrosion experiment clamp and experiment device | |
| CN111220507A (en) | Method for rapidly measuring wettability of protein powder | |
| CN112710588A (en) | Method and system for calculating and testing static contact angle of inner surface of capillary tube | |
| CN218204285U (en) | Piezocone sounding probe calibrating device based on vacuum degassing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200428 Effective date of abandoning: 20240827 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200428 Effective date of abandoning: 20240827 |