CN209117523U - A kind of surface tension test device of high temperature non-newtonian fluid melt - Google Patents
A kind of surface tension test device of high temperature non-newtonian fluid melt Download PDFInfo
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- CN209117523U CN209117523U CN201821708938.9U CN201821708938U CN209117523U CN 209117523 U CN209117523 U CN 209117523U CN 201821708938 U CN201821708938 U CN 201821708938U CN 209117523 U CN209117523 U CN 209117523U
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- surface tension
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- newtonian fluid
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Abstract
The utility model discloses a kind of surface tension test devices of high temperature non-newtonian fluid melt, belong to surface chemistry analysis and testing technology field.Including cooking-vessel, planchet, U-shaped syringe needle and syringe, the cooking-vessel ware wall is hollow to form thermally conductive cavity, cooking-vessel is equipped with the fast joint being connected to the thermally conductive cavity, cooking-vessel bottom is equipped with heating rod, the planchet is placed in cooking-vessel, sets that there are two the u-brackets fixed with its inner wall in planchet.Utilize the surface tension relationship of the surface tension of high temperature heat conductive oil, contact angle and non-Newtonian melt, analysis test obtains the surface tension value of high temperature non-newtonian fluid melt, the research that process, high molecular material, advanced material can be lost for 3D printing, wafer photolithography provides reliable material analysis tool, measured value precision is high, it is easy to operate, there is very high promotional value.
Description
Technical field
The utility model relates to a kind of surface tension test devices of high temperature non-newtonian fluid melt, belong to surface chemistry analysis
The field of test technology.
Background technique
Surface tension is to characterize one of the important indicator of material physical chemistry property.The test method of surface tension includes base
Sessile drop method around-France in the platinum plate method and platinum of weighing principle, based on drop contour images analysis principle and sessile drop method and
Rotate drop method, the maximum bubble method based on Pressure Analysis principle and maximum drop-volume method based on drop volume principle etc..It is logical
In normal situation, the measurement of surface tension is the test carried out for the liquid of newton body, is based particularly on drop contour images
The surface tension test device of analysis principle, the precondition of measured value are that the profile of droplet formation meets Young-Laplace
Equation curve.
With new material research and development, the especially development of 3D printing technique, to the surface tension measured value of printed material
Demand put on the schedule of professional.But 3D printing material and some other high molecular material, as PP, PE, PVC,
Photoresist etc. in pitch and semiconductor crystal wafer production, the shape of high-temperature fusant drop profile does not meet Young- completely
Laplace equation, non-newtonian fluid feature determine that its shape is not used to analyze its surface tension value.Meanwhile using weight method
When, since its viscosity is high, when measured value can not correct viscosity number plus non-newtonian fluid mobility absolutely not under conditions of, can not
Melt climbing in probe platinum plate or platinum ring is formed, thus, it can not also use the surface tension measuring technology of weighing principle
Stalagmometry is carried out to non-Newtonian melt.Maximum bubble method principle is also due to can not form effective gas in non-newtonian fluid
Bubble pressure or the non-Newtonianism due to viscosity, during the Young-Laplace arc that pressure in bubbles is not used to characterization sample is formed
Surface tension pressure；Drop-volume method is also due to the drop of non-newtonian fluid can not form the drop of disconnection, and bulking value and surface
Tension forms effective relationship, and is not used to the surface tension value of test non-newtonian fluid melt.Thus, existing technology can not
For testing the surface tension value of non-Newtonian melt.
Patent ZL200410044059.7 discloses the quick measurement dress of a kind of liquid metal and liquid alloy surface tension
It sets, uses bubble method, detect pressure difference and temperature using sensor, calculate and obtain liquid metal and liquid alloy surface tension
Value；Structure in patent is extremely complex, and operation is not easy, and measured value result is usually affected by calibration object.Patent TW289661
It is all based on sessile drop method principle with method disclosed in patent CN201020580129.1, platinum-rhodium alloy or platinumiridio material is respectively adopted
The needle tube type bracket and annular stent of material are as hanging bracket；And a kind of patent ZL201510829913.9 " full ceramic watch
Face tension test frame and test method " disclose a kind of hanging drop forming device of conical structure.Three patents as above are pair
The structure for forming hanging drop has carried out simple innovation, but the volume of drop is unable to control during forming drop, can not be to outstanding
Hanging for drop control effectively, thus causes measured value precision very low, is unable to satisfy the testing requirement of interface rheology.
A kind of poling board method survey is proposed in patent CN201610864096 " detection method of road asphalt surface free energy "
The method for trying asphalt surface tension.But the probe liquid of poling board method insertion can not be using high-temp liquid and a variety of proportions of needs
Liquid, thus test condition under the high temperature conditions does not have.Meanwhile the contact angle values that plate principle calculates are due to any plate
Contact angle values that can be 28 degree of self-assembling formation or so in liquid are inserted into, thus, which is not used to characterize
The actual physical chemical property of solid, monitoring error are larger.
" progress of Measuring Surface Tension of High Temperature Molten Liquid ", chemistry notification, 2004,67 (11): 802-807) it discloses
A kind of theoretic test method for testing smelt surface tension by sessile drop method, but in specific operating practice, due to stopping
What drop used is entire plate, and the own surface free energy of plate can significantly affect the shape of drop, thus, equally exist survey
It is worth the completely incredible major defect of result." high-temperature fusant volume mass and surface tension test new method " (Northeastern University is learned
Report (natural science edition), 1996,17 (5): 503-507) disclose a kind of twin columns connection title method for test surfaces tension value, it is this
Method is a kind of variant of platinum plate method, and measured value process is affected by temperature and measured value result is caused deviation occur, and tests
In, the very difficult realization of the modifying factor of contact angle values and buoyancy, the practical significance of measured value is little.Chinese Academy of Sciences's process is ground
Study carefully institute Guo Chaohong, Sun Yanhong team " Online measurements of surface tensions and viscosities
based on the hydrodynamics of Taylor flow in a microchannel》(Review of
Scientific Instruments 87,114901(2016)；Https: //doi.org/10.1063/1.4963898) it mentions
A kind of technology for flowing based on Taylor and carrying out the surface tension test of non-newtonian fluid is gone out, but the technology analyzes mould used
There are problems for the repeatability in non-newtonian fluid analysis of thickness, are not used to scientific stronger 3D material surface tension measurement
Test.German apparatus manufacture Dataphysics proposes a kind of Lamella method for testing surface tension of high-temperature melt, but this
Method also requires that stretching drop profile meets Young-Laplace equation curve, and this be for non-newtonian fluid can not
The chamfered shape that can be formed.
For this purpose, there is an urgent need to one kind can be realized under such as high temperature temperature strip parts such as 500 degree, non-newtonian fluid high temperature melting is tested
The device of the surface tension of liquid and corresponding test method meet Aeronautics and Astronautics, special material, 3D printing, advanced partly lead
Demand of the fields such as body, silicon wafer process to the research and development of high-grade, precision and advanced material.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of surveys of the surface tension of high temperature non-newtonian fluid melt
Trial assembly is set, and the test problem of the surface tension of non-newtonian fluid melt under hot conditions is solved, and is met involved in advanced material research
Non-newtonian fluid melt stalagmometry testing requirement.
Technical problem to be solved in the utility model takes following technical scheme to realize:
A kind of surface tension test device of high temperature non-newtonian fluid melt, including cooking-vessel, planchet, U type syringe needle and note
Emitter, the cooking-vessel ware wall is hollow to form thermally conductive cavity, and cooking-vessel is equipped with the fast joint being connected to the thermally conductive cavity, adds
Hot ware bottom is equipped with heating rod, and the planchet is placed in cooking-vessel, sets in planchet U-shaped there are two fixing with its inner wall
The two-arm length of bracket, the U-shaped syringe needle is different, and a shorter arm extends in planchet, an another longer arm and the injection
Device connects, and is filled with high temperature heat conductive oil in the thermally conductive cavity and the cooking-vessel.
By using above-mentioned technical proposal, high temperature heat conductive oil is added in thermally conductive wall and planchet, sample is put
It sets in u-bracket and immerses in high temperature heat conductive oil, U-shaped syringe needle galianconism extends to below sample lower surface, syringe is pushed,
Bubble floating drop is formed above U-shaped syringe needle for analyzing the surface tension of high temperature heat conductive oil, then moves U-shaped syringe needle, makes it
It moves up with up to itself and sample following table face contact, forms bubble and stop dripping the table for analyzing high temperature non-newtonian fluid melt
Face tension value.
As preferred embodiment, the planchet material is quartz or sapphire.
As preferred embodiment, the U-shaped syringe needle material is stainless steel.
As preferred embodiment, the u-bracket material is stainless steel.
As preferred embodiment, the U-shaped syringe needle is connect by female Luer with the dispensing end of the syringe.
The beneficial effects of the utility model are: tested non-Newtonian melt is immersed in high temperature heat conductive oil, not only pass through
High-temperature heating forms melt and promotes the uniformity of melt temperature control, and can be formed by high temperature heat conductive oil in the surface of solids
Bubble stop drop newton shape edge analysis, it is molten using the surface tension of high temperature heat conductive oil, contact angle and non newtonian
The surface tension relationship of body, analysis test obtain the surface tension value of high temperature non-newtonian fluid melt, can be 3D printing, wafer light
The research for etching process, high molecular material, advanced material provides reliable material analysis tool, and measured value precision is high, easy to operate,
With very high promotional value.
Detailed description of the invention
Fig. 1 is the schematic diagram that the utility model forms bubble floating drop；
Fig. 2 is the schematic diagram that the utility model forms that bubble stops drop.
In figure: cooking-vessel 1, planchet 2, U-shaped syringe needle 3, syringe 4, thermally conductive cavity 5, fast joint 6, heating rod 7, U-shaped branch
Frame 8, high temperature heat conductive oil 9 are tested melt sample 10, and bubble floating drop 11, bubble stops drop 12.
Specific embodiment
In order to which the technical means, creative features, achievable purpose and effectiveness to the utility model are easy to understand, tie below
Conjunction is specifically illustrating, and the utility model is further described.
As depicted in figs. 1 and 2, a kind of surface tension test device of high temperature non-newtonian fluid melt, including cooking-vessel 1, sample
Product ware 2, U-shaped syringe needle 3 and syringe 4, the 1 ware wall of cooking-vessel is hollow to form thermally conductive cavity 5, cooking-vessel 1 be equipped with it is described
The fast joint 6 that thermally conductive cavity 5 is connected to, 1 bottom of cooking-vessel are equipped with heating rod 7, and the planchet 2 is placed in cooking-vessel 1, sample
It is set in ware 2 there are two the U type bracket 8 fixed with its inner wall, the two-arm length difference of the U-shaped syringe needle 3, a shorter arm is stretched
To planchet 2, an another longer arm is connect with the syringe 4, is filled in the thermally conductive cavity 5 and the cooking-vessel 1
High temperature heat conductive oil 9.
In a kind of embodiment wherein, 2 material of planchet is quartz or sapphire.
In a kind of embodiment wherein, U-shaped 3 material of syringe needle is stainless steel.
In a kind of embodiment wherein, 8 material of u-bracket is stainless steel.
In a kind of embodiment wherein, the U-shaped syringe needle 3 is connected by the dispensing end of female Luer and the syringe 4
It connects.
As shown in Figure 1, pushing 4 push rod of syringe to form one on U-shaped syringe needle 3 after tested melt sample 10 is put into
Then bubble floating drop 11 moves up U-shaped syringe needle 3 to itself and tested melt for analyzing the surface tension of high temperature heat conductive oil 9 again
10 following table face contact of sample, as shown in Fig. 2, forming bubble stops drop 12 for analyzing the surface tension of high temperature non-newtonian fluid melt
Value.
Automatic control can be realized by moving syringe 4 manually or syringe 4 being fixed on lifting device, drive U
Type syringe needle 3 is mobile.
It is monitored by temperature of the temp controlled meter to high temperature heat conductive oil 9, to control the work of heating rod 7；Or by fast
Thermally conductive cavity 5 is connect by connector 6 with thermostatic water bath, realizes temperature control.
After forming bubble floating drop 11 on U-shaped syringe needle 3 by syringe 4, bubble floating is dripped by 11 profiles using video camera and is caught
After catching, the surface tension value of bubble floating drop 11 is obtained by calculating analysis；Syringe 4 is transported upwards together with U-shaped syringe needle 3
It is dynamic, bubble floating drop 11 is parked in the lower surfaces of tested non-newtonian fluid melt, bubble is formed and stops drop 12, using video camera by bubble
The surface tension value calculating analysis of bubble floating drop 11 is combined to obtain corresponding non-newtonian fluid melt after stopping the profile capture of drop 12
Surface tension value.
Tested non-Newtonian melt is immersed in high temperature heat conductive oil 9 by the utility model, is not only formed by high-temperature heating
Melt promotes the uniformity of melt temperature control, and can stop dripping in the bubble that the surface of solids is formed by high temperature heat conductive oil 9
The edge analysis of 12 newton shape, utilizes the surface of the surface tension of high temperature heat conductive oil 9, contact angle and non-Newtonian melt
Length tension relation, analysis test obtain the surface tension value of high temperature non-newtonian fluid melt, can be 3D printing, wafer photolithography erosion stream
The research of journey, high molecular material, advanced material provides reliable material analysis tool, and measured value precision is high, easy to operate, has non-
Often high promotional value.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry it should be appreciated that the present utility model is not limited to the above embodiments, do not depart from the spirit of the present invention and
Under the premise of range, the utility model also has various changes and improvements, these changes and improvements both fall within the utility model and want
In the range of asking protection.The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (5)
1. a kind of surface tension test device of high temperature non-newtonian fluid melt, it is characterised in that: including cooking-vessel, planchet, U-shaped
Syringe needle and syringe, the cooking-vessel ware wall is hollow to form thermally conductive cavity, and cooking-vessel is equipped with to be connected to the thermally conductive cavity
Fast joint, cooking-vessel bottom are equipped with heating rod, and the planchet is placed in cooking-vessel, set in planchet there are two with its inner wall
The two-arm length of fixed u-bracket, the U-shaped syringe needle is different, and a shorter arm extends in planchet, an another longer arm with
The syringe connects, and is filled with high temperature heat conductive oil in the thermally conductive cavity and the cooking-vessel.
2. a kind of surface tension test device of high temperature non-newtonian fluid melt according to claim 1, it is characterised in that: institute
Stating planchet material is quartz or sapphire.
3. a kind of surface tension test device of high temperature non-newtonian fluid melt according to claim 1, it is characterised in that: institute
Stating U-shaped syringe needle material is stainless steel.
4. a kind of surface tension test device of high temperature non-newtonian fluid melt according to claim 1, it is characterised in that: institute
Stating u-bracket material is stainless steel.
5. a kind of surface tension test device of high temperature non-newtonian fluid melt according to claim 1, it is characterised in that: institute
U-shaped syringe needle is stated to connect by female Luer with the dispensing end of the syringe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821708938.9U CN209117523U (en) | 2018-10-22 | 2018-10-22 | A kind of surface tension test device of high temperature non-newtonian fluid melt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821708938.9U CN209117523U (en) | 2018-10-22 | 2018-10-22 | A kind of surface tension test device of high temperature non-newtonian fluid melt |
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| CN209117523U true CN209117523U (en) | 2019-07-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557259A (en) * | 2020-12-30 | 2021-03-26 | 中国石油大学(北京) | Rock wettability measuring device and method under stratum water environment |
-
2018
- 2018-10-22 CN CN201821708938.9U patent/CN209117523U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557259A (en) * | 2020-12-30 | 2021-03-26 | 中国石油大学(北京) | Rock wettability measuring device and method under stratum water environment |
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