CN110779869A - Device and method for synchronously measuring adhesion force and contact/triboelectricity of adhesion material - Google Patents
Device and method for synchronously measuring adhesion force and contact/triboelectricity of adhesion material Download PDFInfo
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
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Abstract
The invention discloses an adhesion and contact/triboelectricity synchronous measuring device for an adhesion material, which comprises a two-dimensional moving platform control device, a force signal acquisition device and an electric signal acquisition device, wherein the two-dimensional moving platform control device comprises a bedplate, a two-dimensional moving platform, a fixed platform and a computer terminal, the force signal acquisition device comprises a lower sample platform, an upper sample platform, a pressure strain sensor and a force signal data acquisition card, and the electric signal acquisition device comprises an upper contact module, a lower contact module, an electrometer and an electric signal data acquisition card. The invention also discloses a method for synchronously measuring the adhesion force and the contact/triboelectricity of the adhesion material. The advantages are that: the method can realize real-time synchronous measurement of the adhesion force and the contact/friction electric signal in the contact adhesion process of the adhesion material, and is suitable for analyzing the mutual relation of the electrostatic action and the adhesion action.
Description
Technical Field
The invention relates to the field of adhesion and electric quantity measurement, in particular to a device and a method for synchronously measuring adhesion and contact/triboelectricity of an adhesion material.
Background
The gecko has high climbing adhesion capability, and researches show that the hierarchical structure of the sole of the gecko is the source of the strong adhesion force, and the adhesion mechanism behind the gecko is a van der Waals force action mechanism. Recent studies have detected electrical signals on the contact surface during contact adhesion of gecko soles, and data indicate that electrostatic effects caused by contact/triboelectricity contribute to the adhesion of gecko soles.
The gecko sole is used as a bionic object, and researchers use different materials such as carbon nanotube arrays (VACNT), Polydimethylsiloxane (PDMS) and the like to prepare the bionic adhesion material similar to the sole bristle structure. The adhesion force of the currently developed bionic adhesion material can reach 100N/cm
2Much greater than the gecko's foot can provide adhesion, but weaker than the gecko's foot in other adhesion properties (e.g., stability, self-cleaning, etc.). This requires further exploration of the adhesion mechanism of the adhered materials in search of improvements. For the adhesion mechanism of the adhesion material, the conventional research suggests that the van der waals force action mechanism is dominant. Contact between the adhering material and the target surface occurs, and then adhesion is caused under the action of the pre-pressure.
For contact adhesion processes of adhered materials, the contact/friction occurring between the materials will result in a contact/triboelectric phenomenon. There has been a great deal of research into the contact/triboelectric phenomena existing between materials, wherein studies related to mechanical effects indicate that the contact/triboelectric phenomena between materials result from the redistribution of charges, which causes electrostatic interactions between contacting materials. For an adhesion material, the adhesion material has an adhesion force and also has a contact-triboelectric phenomenon, but because a contact/triboelectric signal is weak in an adhesion process, the influence of electrostatic action caused by the contact/triboelectric on the adhesion force cannot be quantified. In view of the gap in the current research, it is necessary to invent a reliable and stable device for synchronously measuring the adhesion force of the adhesion material and the contact/friction electric signal.
To study the influence of the contact/friction electrical signal on the adhesion force during the contact adhesion process of the adhesion material, a moving platform for implementing the contact adhesion process of the adhesion material is required, and the platform has the characteristics of being capable of setting different adhesion motion modes and different contact process parameters. Then, the structure of the contact module and the feedback mode of the force and electric signals need to be designed to ensure the collection of the force and electric signals in the contact adhesion process. And finally, a computer terminal capable of synchronously acquiring and displaying the mechanical signal and the electrical signal in real time is needed, and the capability of quantitatively analyzing the relation between the electrostatic action and the adhesion action in the contact adhesion process of the adhesion material is required.
Disclosure of Invention
The invention aims to provide a device and a method for synchronously measuring the adhesion force of an adhesion material and the contact/triboelectricity in the contact adhesion process of the adhesion material in real time, wherein the contact mode and the adhesion motion parameters are adjustable.
The invention achieves the above-mentioned aim by the following scheme:
an adhesion force and contact/triboelectricity synchronous measuring device of an adhesion material comprises a two-dimensional moving platform control device, a force signal acquisition device and an electric signal acquisition device,
the two-dimensional moving platform control device comprises a bedplate, a two-dimensional moving platform, a fixed table and a computer terminal, wherein the bedplate is horizontally arranged, the two-dimensional moving platform has two modes of terminal driving and manual driving, the two-dimensional moving platform is vertically arranged on the bedplate, a two-dimensional moving platform wire is connected with the computer terminal, and the fixed table is arranged on a moving surface of the two-dimensional moving platform; the computer terminal is preset with a program which has a fixed station fixed mode and a two-dimensional moving mode according to set parameters;
the force signal acquisition device comprises a lower sample stage, an upper sample stage, a pressure strain sensor and a force signal data acquisition card, wherein the lower sample stage is fixed on the platen, the upper sample stage is connected with one end of the pressure strain sensor through a bolt, the other end of the pressure strain sensor is connected with a cantilever beam through a bolt, the cantilever beam is arranged on the fixed stage, a voltage signal of the pressure strain sensor is connected with the force signal data acquisition card through a wire, and the force signal data acquisition card is connected with a computer terminal through a wire;
the electric signal acquisition device comprises an upper contact module, a lower contact module, an electrometer and an electric signal data acquisition card, wherein the upper contact module is fixed on the upper sample table, the surface layer of the upper contact module is an adhesion material layer, the lower contact module is fixed on the lower sample table, and the surface layer of the lower contact module is an adhesion target layer; the adhesion material layer is positioned right above the adhesion target layer; and the conducting silver adhesive layer leading-out wires in the upper contact module and the lower contact module are connected with an electrometer, the conducting wires of the electrometer are connected with an electric signal data acquisition card, and the conducting wires of the electric signal data acquisition card are connected with a computer terminal.
Preferably, the synchronous measuring device further comprises an electrostatic shielding cover, the two-dimensional moving platform control device, the force signal acquisition device, the electric signal acquisition device, the upper contact module and the lower contact module are all located in the electrostatic shielding cover, and the electrostatic shielding cover is grounded and used for shielding interference of an electric field of a surrounding environment on electric signal acquisition.
Preferably, the upper contact module and the lower contact module are respectively bonded on the upper sample table and the lower sample table through insulating glue layers.
Preferably, the upper contact module is formed by superposing an insulating adhesive layer, a conductive copper foil, a conductive silver adhesive layer and an adhesion material layer; the lower contact module is formed by superposing an insulating adhesive layer, a conductive copper foil, a conductive silver adhesive layer and an adhesion target layer. The hierarchical structure can ensure that the adhesion performance of the adhesion material is not influenced, and simultaneously ensure the output of an electric signal.
Preferably, the adhesion material layer is a carbon nanotube adhesion array material, a polydimethylsiloxane material or a polyimide material.
In the preferable technical scheme of the invention, the adhesion target layer is made of silicon dioxide material, polytetrafluoroethylene material or various metal sheet materials.
The invention provides a method for synchronously measuring adhesion force and contact/triboelectricity of an adhesion material, which comprises the following steps:
step 1: adjusting the position of the upper sample table under the manual driving mode of the two-dimensional moving platform, and taking down the upper sample table;
step 2: respectively loading samples on the surfaces of the upper sample table and the lower sample table; the upper contact module is arranged on the surface of the upper sample table, and the lower contact module is arranged on the surface of the lower sample table;
and step 3: adjusting the position of the pressure strain sensor during the initialization of the experiment to keep the pressure strain sensor at a proper distance from the sample loading table so as to ensure the single experiment time, and carrying out zero setting treatment on signals fed back by the electrometer and the pressure strain sensor;
and 4, step 4: adjusting the computer terminal to be in a contact adhesion movement mode, respectively measuring the normal adhesion force and the tangential adhesion force of the adhesion material, setting parameters such as contact speed, pre-load and the like, and driving the two-dimensional moving platform to enable the adhesion material layer to perform a contact adhesion process with the adhesion target layer; meanwhile, the force signal acquisition device and the electric signal acquisition device synchronously acquire changes of adhesion force and contact on surface charge quantity in real time, and the computer terminal records mechanical data and electrical data;
and 5: after the experiment is finished, synchronously processing the collected mechanical data and electrical data on a computer terminal;
step 6: and (5) analyzing the influence of the electrostatic action on the adhesion force in the contact adhesion process of the adhesion material according to the mechanical data and the electrical data in the step 5.
In the technical scheme of the invention, the computer terminal is a known technology, and the program preset in the computer terminal is a known technology in the technical field.
The data acquisition unit in the technical scheme of the invention is the conventional technology in the technical field, and the invention is not described in detail.
The two-dimensional mobile platform in the technical scheme of the invention is a known product, is a purchased part and is directly purchased and obtained.
Compared with the prior art, the invention has the beneficial effects that:
1. the mechanical measurement system and the electrical measurement system are integrated, and the design of the hierarchical structure of the upper contact module and the lower contact module enables the acquisition of force signals and electrical signals to be considered simultaneously in the contact adhesion process; compared with a common contact/triboelectricity acquisition device, the cantilever beam design of the upper sample stage, the lower sample stage and the pressure strain sensor has more pertinence to the adhesion process of the adhesion material, and the measured adhesion can be used as an evaluation standard of the adhesion performance.
2. The two-dimensional mobile platform used in the invention can design a contact-separation motion mode in the contact adhesion process of the adhesion material through the computer terminal, and can realize the contact adhesion process of different parameters (load and frequency); the two-dimensional force sensor and the electrometer have extremely high precision while ensuring the measuring range; the upper and lower contact modules are synchronously monitored in a double-channel mode, and synchronously acquired double-channel electrical signals are beneficial to analyzing synchronous change of the surface electrification amount of the adhesion material and the target contact surface, so that the contact/triboelectric principle can be verified; the design of the electrostatic shielding cover is beneficial to maintaining the stability of the external electrical environment of the experiment and reducing the influence of the environmental electric quantity on the test result.
Drawings
Fig. 1 is a layout view of an adhesion and contact/triboelectric synchronous measuring device of an adhesion material.
Fig. 2 is a schematic structural view of an upper contact module and a lower contact module.
Fig. 3 is an experimental flow chart.
Number names in the above figures: 1, a bedplate; 2, a two-dimensional moving platform; 3, a motor; 4, fixing a table; 5, placing a sample table; 6 a lower contact module; 7 an upper contact module; 8, loading a sample platform; 9 a pressure strain sensor; 10 cantilever beam; 11 force signal data acquisition card; 12 an electrometer; 13 an electric signal data acquisition card; 14 a computer terminal; 15 an electrostatic shield; 6-1 insulating glue layer; 6-2 conductive copper foil; 6-3 conductive silver glue layer; 6-4 adhering the target layer; 7-1 adhering the material layer.
Detailed Description
The technical solution of the present invention is described in detail below, but the scope of the present invention is not limited to the embodiments.
In order that the present invention may be more fully understood, reference is now made to the following description taken in conjunction with the accompanying drawings, which are set forth in part in the several figures of the drawing and in the several embodiments of the invention.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example (b):
as shown in fig. 1, the device for synchronously measuring adhesion and contact/triboelectricity of an adhesion material of the present embodiment includes a two-dimensional moving platform control device, a force signal acquisition device, and an electrical signal acquisition device.
The two-dimensional moving platform control device comprises a bedplate 1, a two-dimensional moving platform 2, a fixed table 4 and a computer terminal 14, wherein the bedplate 1 is horizontally arranged, the two-dimensional moving platform 2 has two modes of terminal driving and manual driving, the two-dimensional moving platform 2 is vertically arranged on the bedplate 1, a wire of the two-dimensional moving platform 2 is connected with the computer terminal 14, and the fixed table 4 is arranged on a moving surface of the two-dimensional moving platform 2; the computer terminal 14 is pre-programmed with a program having a stationary mode for the stationary stage 4 and a two-dimensional movement mode according to the set parameters.
The computer terminal 14 drives the motor 3 in the two-dimensional moving platform 2 to control the movement of the two-dimensional moving platform 2 through a trigger signal generated by a set program, and then the fixed station 4 realizes a corresponding space movement process. The computer terminal 14 integrates two-dimensional mobile platform control, electrical and mechanical signal acquisition and display, and real-time signal synchronous processing. After the device starts an experiment, the relative movement of the adhesion material and the adhesion target surface is controlled by the computer terminal 14, and the synchronous acquisition of the adhesion force and the contact/friction electric signal is realized by the force signal acquisition device and the electric signal acquisition device.
The force signal acquisition device comprises a lower sample stage 5, an upper sample stage 8, a pressure strain sensor 9 and a force signal data acquisition card 11, wherein the lower sample stage 5 is fixed on the bedplate 1, the upper sample stage 8 is connected with one end of the pressure strain sensor 9 through a bolt, the other end of the pressure strain sensor 9 is connected with a cantilever beam 10 through a bolt, the cantilever beam 10 is installed on the fixed stage 4, a voltage signal of the pressure strain sensor 9 is connected with the force signal data acquisition card 11 through a wire, and the force signal data acquisition card 11 is connected with a computer terminal 14 through a wire.
In this embodiment, the pressure strain sensor 9 is a two-dimensional force sensor, for example, and the two-dimensional force sensor is configured to realize an expected spatial movement through the upper sample stage 8 connected to the two-dimensional moving platform 2 and the fixed stage 4, and the two-dimensional force sensor collects corresponding mechanical signals during the movement of the upper sample stage 8, and transmits the generated voltage signals to the computer terminal 14 through the force signal data acquisition card 11 for real-time display and recording.
The electric signal acquisition device comprises an upper contact module 7, a lower contact module 6, an electrometer 12 and an electric signal data acquisition card 13, wherein the upper contact module 7 is fixed on an upper sample table 8, the surface layer of the upper contact module 7 is an adhesion material layer 7-1, the lower contact module 6 is fixed on a lower sample table 5, and the surface layer of the lower contact module 6 is an adhesion target layer 6-4; the adhesion material layer 7-1 is positioned right above the adhesion target layer 6-4; the conducting silver colloid layer leading-out wires in the upper contact module 7 and the lower contact module 6 are connected with an electrometer 12, the electrometer 12 is connected with an electric signal data acquisition card 13 through a wire, and the electric signal data acquisition card 13 is connected with a computer terminal 14 through a wire.
In order to realize the real-time representation of the surface charge quantity change of the upper contact module 7 and the lower contact module 6, leads in surface interlayers corresponding to the upper contact module 7 and the lower contact module 6 are respectively connected with the electrometer 12 to carry out double-channel electric signal acquisition and real-time display, and the electric signal data acquisition card 13 is connected with the computer terminal 14 to carry out electric signal recording and subsequent processing. The method specifically comprises the following steps: the upper contact module 7 and the lower contact module 6 are respectively adhered to the upper sample table 8 and the lower sample table 5 through insulating glue layers. The upper contact module 7 is formed by superposing an insulating adhesive layer, a conductive copper foil, a conductive silver adhesive layer and an adhesion material layer 7-1; the lower contact module 6 is formed by superposing an insulating adhesive layer, a conductive copper foil, a conductive silver adhesive layer and an adhesion target layer 6-4. The hierarchical structure can ensure that the adhesion performance of the adhesion material is not influenced, and meanwhile, the electrical signal is output.
As shown in fig. 2, the lower contact module 6 and the upper contact module 7 are each of a hierarchical structure. In order to realize real-time acquisition of the change of the electric charge of the adhesion target layer 6-4, the lower contact module 6 sequentially superimposes an insulating adhesive layer 6-1, a conductive copper foil 6-2, a conductive silver adhesive layer 6-3 and the adhesion target layer 6-4 on the surface of the lower sample stage 5, a lead is fixed at the conductive silver adhesive layer 6-3 and is connected with the electrometer 12 to realize real-time acquisition of the surface electric signal of the lower contact module 6, and the adhesion target layer 6-4 is made of silicon dioxide material, polytetrafluoroethylene material or various metal sheet materials.
As shown in fig. 2, the upper contact module 7 also sequentially superimposes an insulating adhesive layer 6-1, a conductive copper foil 6-2, a conductive silver adhesive layer 6-3 and an adhesion material layer 7-1 on the surface of the upper sample stage 8 to realize real-time acquisition of the surface charge amount change of the adhesion material layer 7-1, an electric signal is transmitted to the electrometer 12 at the conductive silver adhesive layer 6-3 by a lead wire to realize real-time acquisition of the surface electric signal of the upper contact module 7, and the adhesion material layer 7-1 is made of a carbon nanotube adhesion array material, a polydimethylsiloxane material or a polyimide material.
The two-dimensional moving platform control device, the force signal acquisition device, the electric signal acquisition device, the upper contact module 7 and the lower contact module 6 are all located in the electrostatic shielding cover 15, and the electrostatic shielding cover 15 is grounded and used for shielding interference of an electric field of the surrounding environment on electric signal acquisition.
As shown in fig. 3, a method for synchronously measuring adhesion and contact/triboelectricity of an adhesion material comprises the following steps:
step 1: adjusting the position of the upper sample table 8 under the manual driving mode of the two-dimensional moving platform 2, and taking down the upper sample table 8;
step 2: respectively loading samples on the surfaces of the upper sample table 8 and the lower sample table 5; the upper contact module 7 is arranged on the surface of the upper sample table 8, and the lower contact module 6 is arranged on the surface of the lower sample table 5;
and step 3: adjusting the position of the two-dimensional force sensor during the initialization of the experiment to keep the two-dimensional force sensor at a proper distance from the sample loading table 8 so as to ensure the single experiment time, and carrying out zero setting processing on signals fed back by the electrometer 12 and the two-dimensional force sensor;
and 4, step 4: adjusting the computer terminal 14 to be in a contact adhesion movement mode, respectively measuring the normal adhesion force and the tangential adhesion force of the adhesion material, setting parameters such as contact speed, pre-pressure load and the like, and driving the two-dimensional moving platform to enable the adhesion material layer 7-1 and the adhesion target layer 6-4 to perform a contact adhesion process; meanwhile, the force signal acquisition device and the electric signal acquisition device synchronously acquire changes of adhesion force and surface charge quantity caused by contact in real time, and the computer terminal 14 records mechanical data and electrical data;
and 5: after the experiment is finished, the collected mechanical data and electrical data are synchronously processed on the computer terminal 14;
step 6: and (5) analyzing the influence of the electrostatic action on the adhesion force in the contact adhesion process of the adhesion material according to the mechanical data and the electrical data in the step 5. The method specifically comprises the following steps: according to the measured electrical signal and mechanical signal, respectively drawing the variation curves of the adhesion force and the time corresponding to the electrical signal in the same time axis, and analyzing the mutual relation of the electrostatic action and the adhesion action in the contact adhesion process of the adhesion material according to the corresponding relation of the trends of the two.
According to the method, in the contact adhesion process of an adhesion material, the generation and collection principle of a contact/friction electric signal is that in the contact-adhesion-separation process of an adhesion material layer 7-1 and an adhesion target layer 6-4, the contact causes adhesion between two electrodes, when the two electrodes are partially or completely separated, due to unequal sharing of electrons in an electron cloud caused by different positions of materials in a triboelectric sequence, a net positive charge is formed on the surface of one contact surface (such as a carbon nanotube array), and a net negative charge is formed on the surface of the other contact surface (such as a triboelectric negative material polytetrafluoroethylene). The accumulation of surface charges on the adhesion material layer 7-1 and the adhesion target layer 6-4 will generate equal and different induced charges on the respective back surfaces, so that corresponding electrical signals can be transmitted by the wires and collected by the electrometer 12.
The embodiment can be used for synchronous measurement of the adhesion force of the adhesion material and the contact/triboelectricity, and is suitable for quantitatively analyzing the influence of the contact/triboelectricity on the adhesion force.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (7)
1. A synchronous measuring device for adhesion force and contact/triboelectricity of an adhesion material is characterized by comprising a two-dimensional moving platform control device, a force signal acquisition device and an electric signal acquisition device,
the two-dimensional moving platform control device comprises a bedplate (1), a two-dimensional moving platform (2), a fixed platform (4) and a computer terminal (14), wherein the bedplate (1) is horizontally placed, the two-dimensional moving platform (2) has two modes of terminal driving and manual driving, the two-dimensional moving platform (2) is vertically arranged on the bedplate (1), a wire of the two-dimensional moving platform (2) is connected with the computer terminal (14), and the fixed platform (4) is arranged on a moving surface of the two-dimensional moving platform (2); the computer terminal (14) is preset with a program which has a fixed station (4) fixed mode and a two-dimensional moving mode according to set parameters;
the force signal acquisition device comprises a lower sample table (5), an upper sample table (8), a pressure strain sensor (9) and a force signal data acquisition card (11), wherein the lower sample table (5) is fixed on the bedplate (1), the upper sample table (8) is connected with one end of the pressure strain sensor (9) through a bolt, the other end of the pressure strain sensor (9) is connected with a cantilever beam (10) through a bolt, the cantilever beam (10) is installed on the fixed table (4), a voltage signal of the pressure strain sensor (9) is connected with the force signal data acquisition card (11) through a wire, and the force signal data acquisition card (11) is connected with a computer terminal (14) through a wire;
the electric signal acquisition device comprises an upper contact module (7), a lower contact module (6), an electrometer (12) and an electric signal data acquisition card (13), wherein the upper contact module (7) is fixed on an upper sample table (8), the surface layer of the upper contact module (7) is an adhesion material layer (7-1), the lower contact module (6) is fixed on a lower sample table (5), and the surface layer of the lower contact module (6) is an adhesion target layer (6-4); the adhesion material layer (7-1) is positioned right above the adhesion target layer (6-4); the conducting silver colloid layer leading-out wires in the upper contact module (7) and the lower contact module (6) are connected with the electrometer (12), the electrometer (12) is connected with the electric signal data acquisition card (13) through the wires, and the electric signal data acquisition card (13) is connected with the computer terminal (14) through the wires.
2. The adhesion and contact/triboelectric synchronous measurement device according to claim 1, wherein the synchronous measurement device further comprises an electrostatic shield (15), the two-dimensional moving platform control device, the force signal acquisition device, the electrical signal acquisition device, the upper contact module (7) and the lower contact module (6) are all located in the electrostatic shield (15), and the electrostatic shield (15) is grounded.
3. The device for simultaneous measurement of adhesion and contact/triboelectricity of an adhesion material according to claim 1, wherein the upper contact module (7) and the lower contact module (6) are bonded to the upper sample stage (8) and the lower sample stage (5) by an insulating adhesive layer, respectively.
4. The device for synchronously measuring the adhesion force and the contact/triboelectricity of the adhesion material according to claim 3, wherein the upper contact module (7) is formed by overlapping an insulating adhesive layer, a conductive copper foil, a conductive silver adhesive layer and an adhesion material layer (7-1); the lower contact module (6) is formed by superposing an insulating adhesive layer, a conductive copper foil, a conductive silver adhesive layer and an adhesion target layer (6-4).
5. The device for simultaneous measurement of adhesion and contact/triboelectric properties of adhesion material according to claim 1, wherein the adhesion material layer (7-1) is a carbon nanotube adhesion array material, a polydimethylsiloxane material or a polyimide material.
6. The adhesion and contact/triboelectric synchronous measurement device according to claim 1, wherein the adhesion target layer (6-4) is a silica material, a teflon material or various types of metallic foil materials.
7. A measuring method using the synchronous measuring device of adhesion and contact/triboelectric of an adhesive material according to claims 1 to 6, comprising the steps of:
step 1: the position of the upper sample table (8) is adjusted under the manual driving mode of the two-dimensional moving platform (2), and the upper sample table (8) is taken down;
step 2: respectively loading samples on the surfaces of the upper sample table (8) and the lower sample table (5); the upper contact module (7) is arranged on the surface of the upper sample table (8), and the lower contact module (6) is arranged on the surface of the lower sample table (5);
and step 3: during the initialization of the experiment, the position of the pressure strain sensor (9) is adjusted, so that the pressure strain sensor and the sample loading platform (8) keep a proper distance to ensure the single experiment time, and the signals fed back by the electrometer (12) and the pressure strain sensor (9) are subjected to zero setting;
and 4, step 4: adjusting the computer terminal (14) to be in a contact adhesion movement mode, respectively measuring the normal adhesion force and the tangential adhesion force of the adhesion material, setting parameters such as contact speed, pre-pressing load and the like, and driving the two-dimensional moving platform to enable the adhesion material layer (7-1) and the adhesion target layer (6-4) to carry out a contact adhesion process; meanwhile, the force signal acquisition device and the electric signal acquisition device synchronously acquire changes of adhesion force and contact on surface charge quantity in real time, and the computer terminal (14) records mechanical data and electrical data;
and 5: after the experiment is finished, the collected mechanical data and electrical data are synchronously processed on the computer terminal (14);
step 6: and (5) analyzing the influence of the electrostatic action on the adhesion force in the contact adhesion process of the adhesion material according to the mechanical data and the electrical data in the step 5.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281252A (en) * | 2021-05-24 | 2021-08-20 | 安徽熙泰智能科技有限公司 | Device and method for quantitatively representing adhesiveness of microscopic film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113281252A (en) * | 2021-05-24 | 2021-08-20 | 安徽熙泰智能科技有限公司 | Device and method for quantitatively representing adhesiveness of microscopic film |
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