CN208297264U - The mechanical property testing system of carbon nano-tube fibre at high operating temperatures - Google Patents

The mechanical property testing system of carbon nano-tube fibre at high operating temperatures Download PDF

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Publication number
CN208297264U
CN208297264U CN201820663746.4U CN201820663746U CN208297264U CN 208297264 U CN208297264 U CN 208297264U CN 201820663746 U CN201820663746 U CN 201820663746U CN 208297264 U CN208297264 U CN 208297264U
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China
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carbon nano
tube fibre
mechanical property
operating temperatures
high operating
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CN201820663746.4U
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邸江涛
张超
宋彦辉
李清文
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Suzhou Institute of Nano Tech and Nano Bionics of CAS
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Suzhou Institute of Nano Tech and Nano Bionics of CAS
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Abstract

The utility model discloses a kind of mechanical property testing system of carbon nano-tube fibre at high operating temperatures.The mechanical property testing system of the carbon nano-tube fibre at high operating temperatures includes: Mechanics Performance Testing device, power needed for being used to apply test to carbon nano-tube fibre to be tested;Power supply unit is used to be passed through electric current to carbon nano-tube fibre to be tested, so that carbon nano-tube fibre self-heating to be tested;Gas shield device is at least used to provide protective gas environment to the carbon nano-tube fibre to be tested when test;And temperature testing device, it is used to detect the temperature of carbon nano-tube fibre to be tested.Mechanical property testing system provided by the utility model realizes the Mechanics Performance Testing of carbon nano-tube fibre under the high temperature conditions, the temperature of carbon nano-tube fibre to be measured can be made to reach 2000 DEG C or more in a manner of electrified regulation, so as to the data of mechanical at a temperature of being paid no attention to.

Description

The mechanical property testing system of carbon nano-tube fibre at high operating temperatures
Technical field
The mechanical property testing system of in particular to a kind of carbon nano-tube fibre of the utility model at high operating temperatures, belongs to Carbon nanotube technical field of performance test.
Background technique
Carbon nanotube is a kind of nano material of one-dimentional structure, is curled into cyclic structure by similar mono-layer graphite, has The performances such as excellent mechanics, electricity, calorifics.In aerospace, electromagnetic shielding material, energy storage, lightweight wire, security protection, life The fields such as object material have broad application prospects.And carbon nano-tube fibre due between pipe less parallel arrange, be more advantageous to power, The conduction of electricity, heat.It, can be using the neck such as aerospace and security protection using carbon nano-tube fibre lightweight, high-strength feature Domain;It is with a wide range of applications simultaneously in the fields such as thermal protection, fire-retardant, microwave absorption, heat radiation, composite material.Material is answered Used in aerospace field, need it that also there is good mechanical property under the high temperature conditions, currently, carbon nano-tube fibre is in height Mechanics Performance Testing under temperature state is also rarely reported.
Utility model content
In view of the deficiencies of the prior art, the purpose of this utility model is to provide a kind of carbon nano-tube fibres in the condition of high temperature Under mechanical property testing system.
For the aforementioned purpose of utility model of realization, the technical solution adopted in the utility model includes:
The utility model embodiment provides a kind of mechanical property testing system of carbon nano-tube fibre at high operating temperatures, Include:
Mechanics Performance Testing device, power needed for being used to apply test to carbon nano-tube fibre to be tested;
Power supply unit is used to be passed through electric current to carbon nano-tube fibre to be tested, so that carbon nano-tube fibre to be tested is certainly Heating;
Gas shield device is at least used to provide protective gas ring to the carbon nano-tube fibre to be tested when test Border;And
Temperature testing device is used to detect the temperature of carbon nano-tube fibre to be tested.
The utility model embodiment additionally provides a kind of Mechanics Performance Testing side of carbon nano-tube fibre at high operating temperatures Method comprising:
Carbon nano-tube fibre to be tested is placed in protective gas environment, and by carbon nano-tube fibre to be tested and mechanics Performance testing device connection;
It is passed through with power supply unit into carbon nano-tube fibre to be tested and is enough to make carbon nano-tube fibre self-heating to be tested Electric current;
The temperature of carbon nano-tube fibre to be tested is monitored with temperature testing device;And
Power needed for applying test to carbon nano-tube fibre to be tested with Mechanics Performance Testing device.
Compared with prior art, the Mechanics Performance Testing of carbon nano-tube fibre provided by the utility model at high operating temperatures System, structure is simple, is easy to build, reliable and stable;It realizes the mechanical property of carbon nano-tube fibre under the high temperature conditions Test, can make the temperature of carbon nano-tube fibre to be measured reach 2000 DEG C or more, and can be by changing in a manner of electrified regulation Time-dependent current size and the temperature for changing carbon nano-tube fibre to be measured, so as to the Mechanics Performance Testing number at a temperature of being paid no attention to According to.
Detailed description of the invention
Fig. 1 is the mechanical property of a kind of carbon nano-tube fibre at high operating temperatures in one exemplary embodiments of the utility model The structural schematic diagram of test macro;
Fig. 2 is the mechanical property of a kind of carbon nano-tube fibre at high operating temperatures in one exemplary embodiments of the utility model The flow diagram of test method;
Fig. 3 is the pass of the current value and temperature value that are passed through in carbon nano-tube fibre to be measured in the utility model embodiment 1-5 System's figure;
Fig. 4 is the tensile strength change curve of different temperatures carbon nano-tube fibre to be measured in the utility model embodiment 1-5 Figure.
Specific embodiment
In view of deficiency in the prior art, inventor is studied for a long period of time and is largely practiced, and is able to propose that this is practical new The technical solution of type.The technical solution, its implementation process and principle etc. will be further explained as follows.
The utility model embodiment provides a kind of mechanical property testing system of carbon nano-tube fibre at high operating temperatures, Comprising:
Mechanics Performance Testing device is fixedly connected with carbon nano-tube fibre to be measured, and is used for carbon nanotube to be tested Power needed for fiber applies test;
Power supply unit is electrically connected with carbon nano-tube fibre to be measured, and for being passed through electricity to carbon nano-tube fibre to be tested Stream, so that carbon nano-tube fibre self-heating to be tested;
Gas shield device, the carbon nano-tube fibre to be measured is set in the gas shield device, and is at least used for Protective gas environment is provided to the carbon nano-tube fibre to be tested when test;And
Temperature testing device is used to detect the temperature of carbon nano-tube fibre to be tested.
Further, the Mechanics Performance Testing device includes universal testing machine.
Further, the Mechanics Performance Testing device is through at least two stationary fixtures and the two of carbon nano-tube fibre to be measured End is fixedly connected.
Further, the power supply unit includes DC power supply, and the DC power supply passes through conducting wire and carbon nanometer to be tested The electrical connection of pipe fiber.
Further, the gas shield device includes container and inert gas feedway, the inert gas supply Device is connected to the inner cavity of the container, and the carbon nano-tube fibre to be measured is set to the interior intracavitary of the container;In test, At least it is enough to make the part of the container intracavity by the inert gas that the inert gas feedway inputs the container intracavity Region forms the protective gas environment.
Further, the container includes three mouthfuls of quartz ampoules.
Further, the gas shield device includes support frame, and the container is fixed on support frame as described above.
Further, the temperature testing device uses non-contact temperature test device.
Further, the non-contact temperature test device includes infrared radiation thermometer.
Preferably, the carbon nano-tube fibre to be measured includes that chemical vapour deposition technique or physical method prepare the carbon to be formed and receive Mitron fiber.
The utility model embodiment additionally provides a kind of Mechanics Performance Testing side of carbon nano-tube fibre at high operating temperatures Method comprising:
Carbon nano-tube fibre to be tested is placed in protective gas environment, and by carbon nano-tube fibre to be tested and mechanics Performance testing device connection;
It is passed through with power supply unit into carbon nano-tube fibre to be tested and is enough to make carbon nano-tube fibre self-heating to be tested Electric current;
The temperature of carbon nano-tube fibre to be tested is monitored with temperature testing device;And
Power needed for applying test to carbon nano-tube fibre to be tested with Mechanics Performance Testing device.
Further, the test method further include: record the power of carbon nano-tube fibre to be tested at different temperatures Learn the performance test results.
Further, power needed for the test includes the tensile strength for testing the carbon nano-tube fibre to be tested Power.
Further, the test method is the mechanical property based on the carbon nano-tube fibre at high operating temperatures What test macro was implemented.
Further, the carbon nano-tube fibre to be measured includes that chemical vapour deposition technique or physical method prepare the carbon to be formed Nanotube fibers.
Further, the carbon nano-tube fibre to be measured include can spinning array membrane method or floating catalyst system prepare Carbon nano-tube fibre.
Preferably, at least carbon nano-tube fibre to be measured is kept to be vertically arranged during the test.
Preferably, the electrified regulation of carbon nano-tube fibre to be measured is synchronous with Mechanics Performance Testing carries out.
Preferably, the protective gas includes inert gas.
Further, the test method include: change the size of current that is passed through in carbon nano-tube fibre to be measured so that Carbon nano-tube fibre to be measured is heated to different test temperatures.
The technical solution, its implementation process and principle etc. will be further explained in conjunction with attached drawing as follows.
Fig. 1 and Fig. 2 are please referred to, the mechanical property testing system based on a kind of carbon nano-tube fibre at high operating temperatures carries out The method of Mechanics Performance Testing, comprising:
S1. the mechanical property testing system (as shown in Figure 1) of carbon nano-tube fibre at high operating temperatures is provided, by three mouthfuls of stones English pipe 2 is perpendicularly fixed on iron stand 1, the both ends of carbon nano-tube fibre 3 to be measured is connected via two conducting wires 4 respectively, through leading Line 4 is pierced by from three mouthfuls of 2 upper and lower ends mouths of quartz ampoule, and respectively corresponds clamping two using two fixtures 7 of universal testing machine 6 Root conducting wire 4, carbon nano-tube fibre 3 keep plumbness;
S2. two conducting wires 4 are respectively connected to the positive terminal of DC power supply 5, negative pole end, setting electric current value simultaneously keeps current value Constant, test accesses mechanism 8 from inert gas before starting and is passed through inert gas into three mouthfuls of quartz ampoules 2 to exclude air and (continue It is passed through one minute), and it is continually fed into inert gas during the test;
S3., the eyepiece of infrared radiation thermometer 9 is aimed to the middle part of carbon nano-tube fibre 3 to be measured, and is opened in advance, record is powered Temperature change (the energy that infrared radiation thermometer is radiated during the energization by measuring carbon nano-tube fibre, to obtain in the process Obtain its temperature);
S4. start DC power supply 5 and universal testing machine 6 simultaneously, to test carbon nano-tube fibre to be measured in height The mechanical property that temperature state is write, and obtain the corresponding temperature value of different current values.
Preferably, carbon nano-tube fibre to be measured include can spinning array membrane method or floating catalyst system preparation carbon nanotube Fiber.
Embodiment 1
Copper wire is worn with copper wire connecting carbon nanotube fiber both ends using carbon nano-tube fibre prepared by floating catalyst system Quartz ampoule upper and lower ends mouth out, and with two clamp conducting wires of universal testing machine, carbon nano-tube fibre keeps vertical State;
DC power supply is accessed into conducting wire, setting electric current 0.3A, and is remained unchanged, is passed through indifferent gas in quartz ampoule in advance Body ventilates one minute to exclude air, and is continually fed into inert gas during the test;
The eyepiece of infrared radiation thermometer is aimed to the middle part of carbon nano-tube fibre, and opens infrared test switch, record in advance The temperature change of carbon nano-tube fibre in galvanization;
The start button of DC power supply and universal testing machine is opened simultaneously, to test carbon nano-tube fibre in height The mechanical property of temperature state, and obtaining the corresponding temperature under the electric current is 1060 DEG C;Test results are shown in figure 4.
Embodiment 2
The electric current of DC power supply is set as 0.4A, carbon nano-tube fibre temperature is 1340 DEG C, remaining the step of same embodiment 1, test carbon nano-tube fibre 1340 DEG C at a temperature of mechanical property, test results are shown in figure 4.
Embodiment 3
The electric current of DC power supply is set as 0.5A, carbon nano-tube fibre temperature is 1600 DEG C, remaining the step of same embodiment 1, test carbon nano-tube fibre 1600 DEG C at a temperature of mechanical property, test results are shown in figure 4.
Embodiment 4
The electric current of DC power supply is set as 0.6A, carbon nano-tube fibre temperature is 1820 DEG C, remaining the step of same embodiment 1, test carbon nano-tube fibre 1820 DEG C at a temperature of mechanical property, test results are shown in figure 4.
Embodiment 5
The electric current of DC power supply is set as 0.7A, carbon nano-tube fibre temperature is 2020 DEG C, remaining the step of same embodiment 1, test carbon nano-tube fibre 2020 DEG C at a temperature of mechanical property, test results are shown in figure 4.
The relational graph of size of current and corresponding temperature value is wherein passed through in embodiment 1-5 in carbon nano-tube fibre to be measured such as Shown in Fig. 3.
The mechanical property testing system of carbon nano-tube fibre provided by the utility model at high operating temperatures, structure letter It is single, it is easy to build, it is reliable and stable;It realizes the Mechanics Performance Testing of carbon nano-tube fibre under the high temperature conditions, is added with being powered The mode of heat can make the temperature of carbon nano-tube fibre to be measured reach 2000 DEG C or more, and can be changed by changing size of current Become the temperature of carbon nano-tube fibre to be measured, so as to the data of mechanical at a temperature of being paid no attention to.
It should be appreciated that above-described embodiment is only to illustrate the technical ideas and features of the present invention, it is ripe its object is to allow The personage for knowing technique can understand the content of the utility model and implement accordingly, can not limit the utility model with this Protection scope.All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover in the utility model Within protection scope.

Claims (10)

1. a kind of mechanical property testing system of carbon nano-tube fibre at high operating temperatures, characterized by comprising:
Mechanics Performance Testing device is fixedly connected with carbon nano-tube fibre to be measured, and is used for carbon nano-tube fibre to be tested Power needed for applying test;
Power supply unit is electrically connected with carbon nano-tube fibre to be measured, and for being passed through electric current to carbon nano-tube fibre to be tested, with Make carbon nano-tube fibre self-heating to be tested;
Gas shield device, the carbon nano-tube fibre to be measured are set in the gas shield device, and are at least used for survey Carbon nano-tube fibre to be tested when examination provides protective gas environment;And
Temperature testing device is used to detect the temperature of carbon nano-tube fibre to be tested.
2. the mechanical property testing system of carbon nano-tube fibre according to claim 1 at high operating temperatures, feature exist In: the Mechanics Performance Testing device includes universal testing machine.
3. the mechanical property testing system of carbon nano-tube fibre according to claim 2 at high operating temperatures, feature exist In: the Mechanics Performance Testing device is fixedly connected through at least two stationary fixtures with the both ends of carbon nano-tube fibre to be measured.
4. the mechanical property testing system of carbon nano-tube fibre according to claim 1 at high operating temperatures, feature exist In: the power supply unit includes DC power supply, and the DC power supply is electrically connected by conducting wire with carbon nano-tube fibre to be tested.
5. the mechanical property testing system of carbon nano-tube fibre according to claim 1 at high operating temperatures, feature exist In: the gas shield device include container and inert gas feedway, the inert gas feedway and the container Inner cavity connection, the carbon nano-tube fibre to be measured is set to the interior intracavitary of the container;In test, by the inert gas It is described that the inert gas that feedway inputs the container intracavity is at least enough to make the regional area of the container intracavity to be formed Protective gas environment.
6. the mechanical property testing system of carbon nano-tube fibre according to claim 5 at high operating temperatures, feature exist In: the container includes three mouthfuls of quartz ampoules.
7. the mechanical property testing system of carbon nano-tube fibre according to claim 5 at high operating temperatures, feature exist In: the gas shield device includes support frame, and the container is fixed on support frame as described above.
8. the mechanical property testing system of carbon nano-tube fibre according to claim 1 at high operating temperatures, feature exist In: the temperature testing device uses non-contact temperature test device.
9. the mechanical property testing system of carbon nano-tube fibre according to claim 8 at high operating temperatures, feature exist In: the non-contact temperature test device includes infrared radiation thermometer.
10. the mechanical property testing system of carbon nano-tube fibre according to claim 1 at high operating temperatures, feature exist In: the carbon nano-tube fibre to be measured includes that chemical vapour deposition technique or physical method prepare the carbon nano-tube fibre to be formed.
CN201820663746.4U 2018-05-04 2018-05-04 The mechanical property testing system of carbon nano-tube fibre at high operating temperatures Active CN208297264U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108387458A (en) * 2018-05-04 2018-08-10 中国科学院苏州纳米技术与纳米仿生研究所 Carbon nano-tube fibre mechanical property testing system at high operating temperatures and method
CN109502572A (en) * 2018-12-29 2019-03-22 苏州第元素纳米技术有限公司 Carbon nanotube method of purification
CN112941680A (en) * 2021-01-28 2021-06-11 华侨大学 Preparation method of carbon nanotube fiber-loaded nano iron oxide composite material
CN113005759A (en) * 2019-12-19 2021-06-22 中国科学院苏州纳米技术与纳米仿生研究所南昌研究院 Carbon nanotube fiber continuous energization enhancing device and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108387458A (en) * 2018-05-04 2018-08-10 中国科学院苏州纳米技术与纳米仿生研究所 Carbon nano-tube fibre mechanical property testing system at high operating temperatures and method
CN109502572A (en) * 2018-12-29 2019-03-22 苏州第元素纳米技术有限公司 Carbon nanotube method of purification
CN113005759A (en) * 2019-12-19 2021-06-22 中国科学院苏州纳米技术与纳米仿生研究所南昌研究院 Carbon nanotube fiber continuous energization enhancing device and method
CN112941680A (en) * 2021-01-28 2021-06-11 华侨大学 Preparation method of carbon nanotube fiber-loaded nano iron oxide composite material
CN112941680B (en) * 2021-01-28 2022-09-30 华侨大学 Preparation method of carbon nanotube fiber-loaded nano iron oxide composite material

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