CN206178059U - Detection apparatus for sociable response action of conducting polymer combined material - Google Patents

Abstract

The utility model discloses a can detect the detection apparatus for sociable response action of conducting polymer combined material of conducting polymer combined material electrically conductive response condition under different sociable environment such as stress, temperature, gas, it belongs to conducting polymer combined material capability test technical field. This detection apparatus for sociable response action of conducting polymer combined material includes: the stress sensitive testing arrangement of data processor, resistance test device, electrically conductive response action when being arranged in detecting conducting polymer combined material bearing stress and changing, be used for detecting the temperature sensitive testing arrangement of the response action of electrically conducting when the temperature field moderate temperature that conducting polymer combined material locate changes and be used for detecting conducting polymer combined material and electrically conduct the resistance test device 3 testing arrangement of response action in the gaseous atmosphere of difference. Adopt this detection apparatus for sociable response action of conducting polymer combined material convenient operation, test specification guangZhou, with low costs.

Description

Detection device for external field response behavior of conductive polymer composite materials

technical field

The utility model relates to the technical field of performance testing of conductive polymer composite materials, in particular to a detection device for the external field response behavior of conductive polymer composite materials.

Background technique

It is well known that conductive polymer composites exhibit stimulus-response characteristics in external fields such as temperature fields, stress fields, and organic solvents, which make the materials often used as self-temperature-controlling heating materials, over-current and over-temperature protectors, and sensing elements. devices are widely used. The basic principle is that when the conductive polymer composite material is stimulated by external fields such as temperature field, pressure field, and organic solvent, the relative position of its conductive particles changes, which causes the conductive network in the material to be destroyed and reorganized, and the resistance occurs accordingly. Change. The detection of external field response behavior of conductive polymer composites can provide theoretical and experimental basis for the application of materials. However, in actual research, the detection device for the external field response behavior of conductive polymer composites has more or less technical problems such as small test range, low sensitivity, cumbersome operation, complicated device lapping and disassembly, and is expensive and inconvenient to carry out. Test and use.

Utility model content

The technical problem to be solved by the utility model is to provide a conductive polymer with the characteristics of convenient operation, wide testing range, low cost, etc., and can detect the conductive response of conductive polymer composite materials under different external field environments such as stress, temperature, and gas. A detection device for external field response behavior of composite materials.

The technical scheme adopted by the utility model to solve the technical problem is: a detection device for the external field response behavior of conductive polymer composite materials, including: a data processor, a resistance test device, a stress-sensitive test device, a temperature-sensitive test device and a gas-sensitive test device ;

The resistance testing device is electrically connected to the data processor, and the resistance testing device has a positive electrode terminal and a negative electrode terminal;

The stress-sensitive testing device comprises an electronic universal testing machine; the electronic universal testing machine is provided with metal clamps for clamping conductive polymer composite materials; One end of the molecular composite material is provided with a stress detection positive electrode and a stress detection negative electrode; the stress detection positive electrode is electrically connected to the positive electrode terminal of the resistance testing device, and the stress detection negative electrode is electrically connected to the negative electrode terminal of the resistance testing device;

The temperature-sensitive testing device includes a heater, a heating container, and a temperature-rising controller for controlling the heating temperature of the heater; a temperature-detecting positive electrode and a temperature-detecting negative electrode are arranged in the heating container; the temperature-detecting positive electrode and the resistance test The positive electrode terminal of the device is electrically connected, and the temperature detection negative electrode is electrically connected to the negative electrode terminal of the resistance testing device;

The gas-sensitive testing device includes a test bottle; the test bottle has a bottle cap that seals the inner cavity of the test bottle; the bottle cap is provided with a gas test positive electrode and a gas test negative electrode that extend through the bottle cap into the test bottle;

The gas testing positive electrode is electrically connected to the positive electrode terminal of the resistance testing device, and the gas testing negative electrode is electrically connected to the negative electrode terminal of the resistance testing device.

Further, the positive electrode terminal of the resistance testing device is provided with a first reversing switch, and the negative electrode terminal of the resistance testing device is provided with a second reversing switch; the positive electrode terminal of the resistance testing device passes through The first reversing switch is respectively electrically connected to the stress detection positive electrode, the temperature detection positive electrode, and the gas test positive electrode;

The negative electrode terminal of the resistance testing device is respectively electrically connected to the stress detection negative electrode, the temperature detection negative electrode, and the gas test negative electrode through the second reversing switch.

Preferably, the metal fixture of the electronic universal testing machine includes an upper fixture and a lower fixture; the upper fixture and the lower fixture both include two splints; there is a gap between the two splints, and the splint is provided with two adjustable A position adjustment device for the distance between the splints; in the gap between the two splints, insulating layers are arranged on the opposite sides of the two splints.

Preferably, the insulating layer is an insulating rubber pad.

Preferably, the data processor is a computer.

Preferably, the resistance testing device adopts a digital multimeter.

Further, the temperature-sensitive testing device further includes a bracket; the bracket has a beam, and the beam is located above the heating container, and an insulating rope is arranged on the beam, and the insulating rope extends into the heating container.

Preferably, the test bottle is conical flask.

The beneficial effects of the utility model are: the detection device for the external field response behavior of the conductive polymer composite material provided by the utility model includes a stress sensitive test device, a temperature sensitive test device and a gas sensitive test device; Corresponding conditions in different external fields are detected; at the same time, the detection device for the external field response behavior of conductive polymer composite materials described in the utility model is simple to operate, has a wide testing range, and is easy to use, and can selectively detect conductive polymer composite materials according to needs. The external field response such as stress sensitivity, temperature sensitivity or gas sensitivity can be detected.

Description of drawings

Fig. 1 is the structural schematic diagram of the detection device of the external field response behavior of conductive polymer composite material in the utility model embodiment;

Fig. 2 is a schematic diagram of the structure of the detection device for the external field response behavior of the conductive polymer composite material in the embodiment of the present invention when testing the tensile sensitivity behavior of the conforming material;

Fig. 3 is a schematic structural view of the metal fixture of the electronic universal testing machine in the embodiment of the present invention;

Fig. 4 is a schematic diagram of the structure of the detection device for the external field response behavior of the conductive polymer composite material in the embodiment of the present invention when testing the temperature-sensitive behavior of the conforming material;

Fig. 5 is a schematic diagram of the structure of the detection device for the external field response behavior of the conductive polymer composite material in the embodiment of the utility model when testing the gas sensitivity behavior of the corresponding material;

Marked in the picture: 1-data processor, 2-resistance test device, 3-stress sensitive test device, 31-electronic universal testing machine, 4-temperature sensitive test device, 41-heater, 42-heating container, 43-temperature Positive electrode for detection, 44-negative electrode for temperature detection, 45-temperature rise and fall controller, 46-support, 47-insulated rope, 5-gas sensitive test device, 51-test bottle, 52-positive electrode for gas test, 53-gas test Negative electrode, 54-bottle cap, 6-metal fixture of electronic universal testing machine, 61-upper fixture, 62-lower fixture, 63-splint, 64-insulating layer, 65-gap adjustment device, 66-negative electrode for stress detection, 67 - Positive electrode for stress detection, 7 - Conductive polymer composite.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Example

As shown in Figures 1 to 5, the detection device for the external field response behavior of conductive polymer composite materials described in the utility model includes: a data processor 1, a resistance test device 2, a stress-sensitive test device 3, and a temperature-sensitive test device 4 and a gas sensitive test device 5;

The resistance testing device 2 is electrically connected to the data processor 1, and the resistance testing device 2 has a positive electrode terminal and a negative electrode terminal;

Described stress-sensitive testing device 3 comprises electronic universal testing machine 31; Described electronic universal testing machine 31 is provided with the electronic universal testing machine metal fixture 6 that is used to clamp conductive polymer composite material; Described electronic universal testing machine metal fixture 6 One end of the clamped electrical polymer composite material 7 is provided with a stress detection positive electrode 67 and a stress detection negative electrode 66; the stress detection positive electrode 67 is electrically connected to the positive electrode terminal of the resistance testing device 2, and the stress detection negative electrode 66 Electrically connected to the negative electrode terminal of the resistance testing device 2;

The temperature-sensitive testing device 4 includes a heater 41, a heating container 42, and a temperature-rising controller 45 for controlling the heating temperature of the heater 41; the heating container 42 is provided with a temperature detection negative electrode 44 and a temperature detection positive electrode 43; The positive electrode 43 for temperature detection is electrically connected to the positive electrode terminal of the resistance testing device 2, and the negative electrode 44 for temperature detection is electrically connected to the negative electrode terminal of the resistance testing device 2;

Described gas sensitive test device 5 comprises test bottle 51; Described test bottle 51 has the bottle cap 54 of airtight test bottle inner cavity; electrode 52 and gas test negative electrode 53;

The gas testing positive electrode 52 is electrically connected to the positive electrode terminal of the resistance testing device 2 , and the gas testing negative electrode 53 is electrically connected to the negative electrode terminal of the resistance testing device 2 .

Specifically, the main function of the resistance testing device 2 is to detect the resistance of the conductive polymer composite material when it conducts electricity, so as to test the conductivity of the conductive polymer composite material under corresponding conditions.

The main function of the data processor 1 is to process the data obtained by the resistance testing device 2 and to control the detection of conductive polymer composite materials by the resistance testing device 2 .

During use:

1. When it is necessary to detect the response behavior of the conductive polymer composite material under the stress-sensitive external field, first cut off the positive electrode terminal and the negative electrode of the temperature-sensitive test device 4 and the gas-sensitive test device 5 from the resistance test device 2 The electrical connection between the terminals; specifically, it can be realized by setting the switch, or the wire can be cut off directly.

Then the conductive polymer composite material 7 is clamped on the metal fixture 6 of the electronic universal testing machine, while ensuring that the stress detection positive electrode 67 is electrically connected to the positive electrode terminal of the resistance test device 2, and the stress detection negative electrode 66 is connected to the resistance tester. The negative electrode terminal of the device 2 is electrically connected; the data processor 1 and the electronic universal testing machine 31 are started at the same time. The electronic universal testing machine 31 performs a tensile test on the polymer composite material 7 through the metal fixture 6 of the electronic universal testing machine; at the same time, the data processor 1 controls the resistance testing device 2 on the conductive polymer composite material 7 on the metal fixture 6 of the electronic universal testing machine The resistance is detected, and the resistance testing device 2 transmits the detected data to the data processor 1 at the same time; thus, the conductive response behavior of the polymer composite material 7 under stress changes is detected.

2. When it is necessary to detect the response behavior of the conductive polymer composite material under a temperature-sensitive external field, first cut off the positive electrode terminal and the negative electrode of the stress-sensitive test device 3 and the gas-sensitive test device 5 from the resistance test device 2 The electrical connection between the terminals; specifically, it can be realized by setting the switch, or the wire can be cut off directly.

Then add methyl silicone oil in the heating container 42, simultaneously conduction macromolecule composite material 7 is put into heating container 42, and make the two ends of conduction macromolecule composite material 7 connect with temperature detection positive electrode 43 and temperature detection negative electrode respectively 44 electrical connection.

Simultaneously start the data processor 1, the heater 41 and the heating and cooling controller 45. The heating and cooling controller 45 controls the heater 41 to heat the conductive polymer composite material 7 at different heating temperatures; at the same time, the data processor 1 controls the resistance testing device 2 to detect the resistance of the conductive polymer composite material 7, and then the resistance testing device 2 The detected data is transmitted to the data processor 1 ; thus the conductive response behavior of the polymer composite material 7 under temperature changes is detected.

3. When it is necessary to detect the response behavior of the conductive polymer composite material under the gas-sensitive external field, first cut off the positive electrode terminal and the negative electrode of the stress-sensitive test device 3 and the temperature-sensitive test device 4 from the resistance test device 2 The electrical connection between the terminals; specifically, it can be realized by setting the switch, or the wire can be cut off directly.

Then the conductive polymer composite material 7 is put into the test bottle 51, which has been filled with a test gas in advance, and the two ends of the conductive polymer composite material 7 are respectively connected to the gas detection negative electrode 53 and the gas detection positive electrode. 52 electrical connection;

Start data processor 1 and resistance testing device 2 simultaneously; Control resistance testing device 2 by data processor 1 and detect the resistance of conductive polymer composite material 7, then resistance testing device 2 transmits the data detected to data processor 1 After the detection is completed; replace the test bottle 51 filled with the gas to be tested in advance; then detect the resistance of the conductive polymer composite material 7 until the conductive polymer composite material 7 completes the detection in the environment of all test target gases. Thus, the conduction response behavior of the polymer composite material 7 under gas changes was detected.

In summary, the detection device for the external field response behavior of the conductive polymer composite material provided by the utility model includes a stress sensitive test device 3, a temperature sensitive test device 4 and a gas sensitive test device 5; Corresponding conditions in different external fields are detected; at the same time, the detection device for the external field response behavior of conductive polymer composite materials described in the utility model is simple to operate, has a wide testing range, and is easy to use, and can selectively detect conductive polymer composite materials according to needs. The external field response such as stress sensitivity, temperature sensitivity or gas sensitivity can be detected.

For convenience, the detection device for the external field response behavior of the conductive polymer composite material switches the detection of the conductive polymer composite material 7 under different external field conditions; further, the positive electrode terminal of the resistance testing device 2 is provided with a first switch To the switch 21, the negative electrode terminal of the resistance testing device 2 is provided with a second reversing switch 22; the positive electrode terminal of the resistance testing device 2 is respectively connected to the stress detection positive electrode 67, The positive electrode 43 for temperature detection and the positive electrode 52 for gas testing are electrically connected;

The negative electrode terminal of the resistance testing device 2 is electrically connected to the stress detection negative electrode 66 , the temperature detection negative electrode 44 , and the gas test negative electrode 53 respectively through the second reversing switch 22 .

By setting the first reversing switch 21 and the second reversing switch 22, switching between various monitoring devices can be realized, so that the data processor 1, the resistance testing device 2 and the stress-sensitive testing device 3 are combined to form a stress-sensitive testing system Or the data processor 1, the resistance testing device 2 and the temperature sensitive testing device 4 are combined to form a temperature sensitive testing system or the data processor 1, the resistance testing device 2 and the gas sensitive testing device 5 are combined to form a gas sensitive testing system.

In order to facilitate the clamping of the conductive polymer composite material 7 , the tensile test and resistance detection of the conductive polymer composite material 7 are performed simultaneously. As shown in Figure 3, preferably, the electronic universal testing machine metal fixture 6 includes an upper fixture 61 and a lower fixture 62; the upper fixture 61 and the lower fixture 62 each include two splints 63; There is a gap between them, and the splint 63 is provided with a gap adjusting device 65 for adjusting the distance between the two splints 63; in the gap between the two splints 63, an insulating layer 64 is provided on the opposite sides of the two splints 63.

The insulating layer 64 shown is to prevent the metal fixture 6 of the electronic universal testing machine from being energized, and can be made of various insulating materials; in order to reduce costs, facilitate manufacturing, and ensure the insulating effect; the insulating layer 64 is an insulating rubber pad.

The main function of the data processor 1 is to process the data obtained by the resistance testing device 2 and to control the detection of conductive polymer composite materials by the resistance testing device 2 . The data processor 1 can be implemented by various devices, such as a single-chip microcomputer; in order to facilitate operation and reduce costs, the data processor 1 is implemented by a computer.

Specifically, when the data processor 1 uses a computer to control the resistance testing device 2 and process the data detected by the resistance testing device 2, it can be performed in the following manner:

The designer can write a control program on the computer to control the resistance testing device 2 according to the needs of the testing data. Such as: use the measurement and control program of the control resistance testing device 2 developed by Labview language; The measurement and control program independently developed using Labview language is installed on the computer, and the computer is connected with the resistance testing device 2 through the data line, and the measurement and control program on the computer can be real-time Record the resistance value measured by the resistance test device and the test time.

Further, when the data processor 1 adopts a computer, the electronic universal testing machine 31 can also be controlled by the computer to realize the tensile test of the electronic universal testing machine 31 on the conductive polymer composite material 7 and the resistance test device 2 on the conductive polymer composite material. The detection of the resistance of the material 7 is carried out simultaneously.

Specifically, the electronic universal testing machine 31 is connected to a computer through a data line, and a program for controlling the running state of the electronic universal testing machine 31 is installed on the computer, and the electronic universal testing machine 31 can be activated by editing different programs according to the test needs by the operator. Carry out fixed stretching or compression rate, strain from 0 to a certain strain value to do cyclic stretching or compression; fixed strain, stretching or compression rate from 0 to a certain rate to do cyclic stretching or compression; fixed stretching or Compression rate, cyclic stretching or compression when the strain is increasing or decreasing; fixed tensile or compressive strain, cyclical stretching or compression when the rate is increasing or decreasing; strain from 0 to a certain rate to break or compression; a certain fixed Strain, stretching or compressing at a certain rate to a certain strain and then staying for a period of time, then decreasing to the initial strain at the same rate, and then performing the aforementioned cyclic stretching or compression in sequence.

In order to reduce cost and facilitate operation, preferably, the resistance testing device 2 adopts a digital multimeter.

In order to enable the conductive polymer composite material 7 to be heated evenly in the heating container 42; while avoiding the conductive polymer composite material 7 from contacting the heating container 42; further, the temperature sensitive testing device 4 also includes a bracket 46; The support 46 has a crossbeam, and the crossbeam is located above the heating container 42 , and an insulating rope 47 is arranged on the crossbeam, and the insulating rope 47 extends into the heating container 42 . By setting the bracket 46 and installing the insulating rope 47 on the bracket 46 , the conductive polymer composite material 7 can be suspended in the center of the heating container 42 by the insulating rope 47 .

In order to reduce costs, preferably, the test bottle 51 is a conical flask.

Claims (8)

1. The detection device of the external field response behavior of the conductive polymer composite material is characterized in that, the detection device comprises: a data processor (1), a resistance test device (2), a stress sensitive test device (3), a temperature sensitive test device (4) and gas sensitive testing device (5); The resistance testing device (2) is electrically connected to the data processor (1), and the resistance testing device (2) has a positive electrode terminal and a negative electrode terminal; The stress-sensitive testing device (3) comprises an electronic universal testing machine (31); the electronic universal testing machine (31) is provided with an electronic universal testing machine metal clamp (6) for clamping conductive polymer composite materials; One end of the electrical polymer composite material clamped on the electronic universal testing machine metal fixture (6) is provided with a stress detection positive electrode (67) and a stress detection negative electrode (66); the stress detection positive electrode (67) is connected with the resistance test The positive electrode terminal of the device (2) is electrically connected, and the stress detection negative electrode (66) is electrically connected to the negative electrode terminal of the resistance testing device (2); The temperature-sensitive testing device (4) comprises a heater (41), a heating container (42) and a temperature rise controller (45) for controlling the heating temperature of the heater (41); Detect the positive electrode (43) and the temperature detection negative electrode (44); the temperature detection positive electrode (43) is electrically connected with the positive electrode terminal of the resistance testing device (2), and the temperature detection negative electrode (44) is connected to the resistance The negative electrode terminal of the test device (2) is electrically connected; Described gas sensitive testing device (5) comprises test bottle (51); Described test bottle (51) has the bottle cap (54) of airtight test bottle inner chamber; Described bottle cap (54) is provided with through bottle cap ( 54) a gas test positive electrode (52) and a gas test negative electrode (53) extending into the test bottle (51); The gas testing positive electrode (52) is electrically connected to the positive electrode terminal of the resistance testing device (2), and the gas testing negative electrode (53) is electrically connected to the negative electrode terminal of the resistance testing device (2). 2. the detection device of conductive macromolecule composite external field response behavior as claimed in claim 1, is characterized in that: the positive electrode terminal of described resistance testing device (2) is provided with the first reversing switch (21), so The negative electrode terminal of the resistance testing device (2) is provided with a second reversing switch (22); Electrode (67), temperature detection positive electrode (43), gas test positive electrode (52) are electrically connected; The negative electrode terminal of the resistance testing device (2) is electrically connected to the negative electrode for stress detection (66), the negative electrode for temperature detection (44) and the negative electrode for gas testing (53) respectively through the second reversing switch (22). 3. the detecting device of conductive polymer composite external field response behavior as claimed in claim 1, is characterized in that, described electronic universal testing machine metal clamp (6) comprises upper clamp (61) and lower clamp (62); Above-mentioned upper fixture (61) and lower fixture (62) all comprise two splints (63); There is gap between described two splints (63), and described splint (63) is provided with and adjusts two splints (63) A position adjusting device (65) for the distance between them; in the gap between the two splints (63), an insulating layer (64) is provided on opposite sides of the two splints (63). 4. The detection device for external field response behavior of conductive polymer composite materials according to claim 3, characterized in that the insulating layer (64) is an insulating rubber pad. 5. The detection device of the external field response behavior of conductive polymer composite materials according to claim 1, characterized in that, the data processor (1) is a computer. 6 . The detection device for the external field response behavior of conductive polymer composite materials according to claim 1 , wherein the resistance testing device ( 2 ) adopts a digital multimeter. 7 . 7. the detecting device of conductive polymer composite external field response behavior as claimed in claim 1, is characterized in that, described temperature-sensitive testing device (4) also comprises support (46); Described support (46) has crossbeam, The beam is located above the heating container (42), the beam is provided with insulating ropes (47), and the insulating ropes (47) extend into the heating container (42). 8. The detection device of the external field response behavior of the conductive polymer composite material according to claim 1, characterized in that, the test bottle (51) is an Erlenmeyer bottle.