CN214749953U - Flat electrode mechanism for measuring Zeta potential by electrophoretic light scattering method - Google Patents
Flat electrode mechanism for measuring Zeta potential by electrophoretic light scattering method Download PDFInfo
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- CN214749953U CN214749953U CN202121296061.9U CN202121296061U CN214749953U CN 214749953 U CN214749953 U CN 214749953U CN 202121296061 U CN202121296061 U CN 202121296061U CN 214749953 U CN214749953 U CN 214749953U
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Abstract
A flat electrode mechanism for measuring Zeta potential by an electrophoretic light scattering method belongs to the technical field of Zeta potential measurement. Including two electrode slices (3), its characterized in that: the electrode sleeve is provided with an electrode sleeve (4), two sides of the electrode sleeve (4) are respectively provided with an electrode frame (2) used for fixing electrode plates (3), the two electrode plates (3) respectively enter the inside of the electrode sleeve (4) through the electrode frames (2), electrode plates (5) which are in one-to-one correspondence with the electrode plates (3) are arranged inside the electrode sleeve (4), the electrode plates (3) are connected with the corresponding electrode plates (5) in the electrode sleeve (4), and a measuring area (6) is formed between the two electrode plates (5). In the flat plate electrode mechanism for measuring the Zeta potential by the electrophoresis light scattering method, the electric field in the measuring area has higher uniformity, and the measuring precision is improved. The electrode plate and the corresponding electrode plate are connected in the electrode sleeve, so that the cost of the product is reduced on the premise of measuring corrosive liquid.
Description
Technical Field
A flat electrode mechanism for measuring Zeta potential by an electrophoretic light scattering method belongs to the technical field of Zeta potential measurement.
Background
The Zeta potential is a parameter for representing the repulsive force between colloidal particles, and the larger the Zeta potential is, the larger the repulsive force between particles is, the more stable the colloidal system is, so that the Zeta potential has important significance in measuring the Zeta potential in the fields of medicine and industrial latex surface reforming control, surfactant function analysis, pulp additive performance research and the like. The electrophoretic light scattering method has become a main method for measuring the Zeta potential due to the advantages of high measuring speed, no pollution to a measured sample and the like.
In the prior art, when measuring Zeta potential, a capillary sample cell is generally used, which has the following disadvantages: (1) the distance between the two electrodes of the capillary sample cell is far, and the measuring area is far away from the centers of the two electrodes, so that the uniformity of an electric field is poor, and the accuracy of a measuring result is influenced to a certain extent. (2) The material of the capillary sample cell is not corrosion-resistant, when a sample with corrosiveness is tested, the electrode is easily damaged, and the price of the corrosion-resistant material is usually higher under the ordinary condition, so that the cost of the product is greatly increased if the whole electrode is made of the corrosion-resistant material.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the flat plate electrode mechanism for measuring the Zeta potential by the electrophoresis light scattering method overcomes the defects of the prior art, ensures the uniformity of an electric field in a measuring area, improves the measuring precision, and reduces the cost on the premise of realizing the measurement of corrosive liquid.
The utility model provides a technical scheme that its technical problem adopted is: the flat plate electrode mechanism for measuring the Zeta potential by the electrophoresis light scattering method comprises two electrode plates and is characterized in that: the electrode sleeve is provided with an electrode sleeve, two sides of the electrode sleeve are respectively provided with an electrode frame for fixing electrode plates, the two electrode plates respectively enter the electrode sleeve through the electrode frames, electrode plates which are in one-to-one correspondence with the electrode plates are arranged inside the electrode sleeve, the electrode plates and the corresponding electrode plates are connected in the electrode sleeve, and a measuring area is formed between the two electrode plates.
Preferably, an electrode core for spacing the two electrode sheets and the two electrode plates is disposed in the electrode sheath.
Preferably, the bottom of the electrode sleeve is provided with an electrode sleeve opening, and the two electrode plates are arranged in the electrode sleeve opening at intervals.
Preferably, the electrode core is led out from the top of the electrode sleeve and then positioned between the electrode frames on the two sides, and the top of the electrode sleeve is flush with the tops of the electrode frames on the two sides.
Preferably, electrode caps are further arranged on the top of the electrode sleeve and the top of the electrode frames on the two sides.
Preferably, one end of the electrode plate is bent and then clamped at the bottom of the electrode holder, and the other end of the electrode plate clings to the surface of the electrode holder, extends upwards to the top of the electrode sleeve, then is bent to enter the electrode sleeve and extends downwards along the inner wall of the electrode sleeve.
Preferably, a notch is formed in a side portion of the electrode holder, and one end surface of the electrode sheet clamped to the bottom of the electrode holder is exposed from the notch.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
in the flat plate electrode mechanism for measuring the Zeta potential by the electrophoresis light scattering method, because the two electrode plates are parallel and have smaller distance, the electric field in the measuring area has higher uniformity, and the measuring precision is improved. The electrode plate and the corresponding electrode plate are connected in the electrode sleeve, the electrode plate can be made of expensive corrosion-resistant materials, the electrode plate is made of cheap conductive materials, and the product cost is reduced on the premise of measuring corrosive samples.
Drawings
FIG. 1 is a schematic structural diagram of a plate electrode mechanism for measuring Zeta potential by an electrophoretic light scattering method.
FIG. 2 is a front view of a plate electrode mechanism for measuring Zeta potential by electrophoretic light scattering method.
FIG. 3 is a right side view of a plate electrode mechanism for measuring Zeta potential by electrophoretic light scattering method.
Fig. 4 is a sectional view taken along line a-a in fig. 3.
Wherein: 1. the electrode cap 2, the electrode frame 3, the electrode slice 4, the electrode sleeve 5, the electrode plate 6, the measuring area 7, the electrode sleeve opening 8 and the electrode core.
Detailed Description
Fig. 1 to 4 are preferred embodiments of the present invention, and the present invention will be further explained with reference to fig. 1 to 4.
As shown in fig. 1-2, a flat plate electrode mechanism (hereinafter referred to as electrode mechanism) for measuring Zeta potential by electrophoretic light scattering method includes an electrode sleeve 4, a pole sleeve opening 7 is disposed at the bottom of the electrode sleeve 4, two electrode plates 5 are disposed at intervals in the pole sleeve opening 7, and a measuring region 6 is disposed between the two electrode plates 5.
Two sides of the electrode sleeve 4 are respectively provided with an electrode frame 2, an electrode plate 3 is respectively fixed by the two electrode frames 2, the electrode plate 3 enters the electrode sleeve 4 from the top of the electrode frame 2 and is respectively connected with the corresponding electrode plates 5, and the electrode plate 3 is made of copper alloy and has good conductive property; the electrode plate 5 is made of corrosion-resistant materials such as platinum or palladium gold. Therefore, the electrode mechanism not only realizes the measurement of corrosive samples, but also greatly reduces the cost of products.
With reference to fig. 3-4, the electrode holders 2 are symmetrically disposed on two sides of the electrode sleeve 4, the electrode sleeve 4 is of a hollow structure, the electrode core 8 is disposed at the center of the electrode sleeve 4, the electrode core 8 is led out from the top of the electrode sleeve 4 and then disposed between the electrode holders 2 on two sides, and the top of the electrode core 8 is flush with the tops of the electrode holders 2 on two sides. Electrode caps 1 are attached to the electrode core 8 and the upper portions of the electrode holders 2 on both sides.
An opening is arranged on the side part of the electrode frame 2, one end of the electrode plate 3 is clamped at the bottom of the electrode frame 2 after being bent, and one bent surface is exposed from the notch on the side part of the electrode frame 2. The other end of the electrode slice 3 clings to the surface of the electrode frame 2 and extends upwards to the top of the electrode sleeve 4, then bends into the inside of the electrode sleeve 4 and extends downwards along the inner wall of the electrode sleeve 4.
The specific working process and working principle are as follows:
when using, put into the cell with this electrode mechanism, it is surveyed the sample to annotate in the cell, and this electrode mechanism is after putting into the cell, and in electrode sleeve 4 got into the cell, the electrode holder 2 of 4 both sides of electrode sleeve blocked respectively in two outsides of cell. Then, a voltage is applied to the electrode sheet 3 through a notch at the side of the electrode holder 2. A voltage is further applied to the electrode plates 5 via the electrode plates 3, thereby establishing a constant electric field in the measurement zone 6 between the electrode plates 5.
The charged particles do directional electrophoretic motion in a constant electric field of a measuring area, the electrophoretic mobility of the charged particles is measured by using an electrophoretic light scattering method, and then the Zeta potential of the particles is calculated. Because the two electrode plates 5 are parallel and have smaller distance, the electric field in the measuring area 6 has higher uniformity, and the measuring precision is improved.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a dull and stereotyped electrode mechanism for electrophoresis light scattering method measurement Zeta electric potential, includes two electrode slices (3), its characterized in that: the electrode sleeve is provided with an electrode sleeve (4), two sides of the electrode sleeve (4) are respectively provided with an electrode frame (2) used for fixing electrode plates (3), the two electrode plates (3) respectively enter the inside of the electrode sleeve (4) through the electrode frames (2), electrode plates (5) which are in one-to-one correspondence with the electrode plates (3) are arranged inside the electrode sleeve (4), the electrode plates (3) are connected with the corresponding electrode plates (5) in the electrode sleeve (4), and a measuring area (6) is formed between the two electrode plates (5).
2. The flat plate electrode mechanism for measuring Zeta potential according to claim 1, wherein: an electrode core (8) used for spacing the two electrode plates (3) and the two electrode plates (5) is arranged in the electrode sleeve (4).
3. The flat plate electrode mechanism for measuring Zeta potential according to claim 1, wherein: the bottom of the electrode sleeve (4) is provided with an electrode sleeve opening (7), and the two electrode plates (5) are arranged in the electrode sleeve opening (7) at intervals.
4. The flat plate electrode mechanism for measuring Zeta potential according to claim 2, wherein: the electrode core (8) is led out from the top of the electrode sleeve (4) and then is positioned between the electrode frames (2) on the two sides, and the top of the electrode sleeve (4) is flush with the tops of the electrode frames (2) on the two sides.
5. The flat plate electrode mechanism for measuring Zeta potential according to claim 4, wherein: and electrode caps (1) are also arranged on the top of the electrode sleeve (4) and the top of the electrode frames (2) at the two sides.
6. The flat plate electrode mechanism for measuring Zeta potential according to claim 1, wherein: one end of the electrode plate (3) is bent and then clamped at the bottom of the electrode frame (2), and the other end of the electrode plate (3) is tightly attached to the surface of the electrode frame (2), extends upwards to the top of the electrode sleeve (4), then is bent to enter the electrode sleeve (4), and extends downwards along the inner wall of the electrode sleeve (4).
7. The flat plate electrode mechanism for measuring Zeta potential according to claim 1, wherein: a notch is arranged on the side part of the electrode frame (2), and one end face of the electrode plate (3) clamped at the bottom of the electrode frame (2) is exposed out of the notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121296061.9U CN214749953U (en) | 2021-06-10 | 2021-06-10 | Flat electrode mechanism for measuring Zeta potential by electrophoretic light scattering method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121296061.9U CN214749953U (en) | 2021-06-10 | 2021-06-10 | Flat electrode mechanism for measuring Zeta potential by electrophoretic light scattering method |
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| CN214749953U true CN214749953U (en) | 2021-11-16 |
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| CN202121296061.9U Active CN214749953U (en) | 2021-06-10 | 2021-06-10 | Flat electrode mechanism for measuring Zeta potential by electrophoretic light scattering method |
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2021
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