CN103868790A - Micro/nano fiber tensile torsion sample stage and experimental method - Google Patents
Micro/nano fiber tensile torsion sample stage and experimental method Download PDFInfo
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- CN103868790A CN103868790A CN201410053871.XA CN201410053871A CN103868790A CN 103868790 A CN103868790 A CN 103868790A CN 201410053871 A CN201410053871 A CN 201410053871A CN 103868790 A CN103868790 A CN 103868790A
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Abstract
The invention relates to a micro/nano fiber tensile torsion sample stage and an experimental method. According to the sample stage, micro/nano fibers are quantitatively reversed and stretched by utilizing a nano stretching instrument. According to the experimental method, breakage and damage of fibers can be effectively avoided. The sample stage can be repeatedly used, does not deform and is not unstable, the fiber centering precision in a tensile experiment is not influenced, the experiment efficiency is improved, and the experimental repeatability is high.
Description
Technical field
The present invention relates to a kind of sample bench coordinating with cupping machine, particularly relate to micro/nano-fibre stretching torsional specimen platform and experimental technique, belong to fibrous material mechanical property detection technique field.
Background technology
Micro/nano-fibre is widely used in industrial materials manufacture, as compound substance, rope, travelling belt etc. as the fiber of a kind of high strength, high-modulus.These materials in use General Requirements fiber have good Elastoplastic Performances in Simulation, what test fibrous mechanical property was selected conventionally is macroscopical cupping machine, as universal testing machine, and for micro/nano-fibre, there is in recent years the nanometer stretching instrument that a kind of precision is high, the resolving power of its displacement can reach 50 nanometers, and load resolving power can reach 1 and receive ox, and high precision guarantees directly to obtain by stretching experiment the mechanical property of micro/nano-fibre.Because the form of micro/nano-fibre in real industrial products is accompanied by torsion more, this form is to the real tension ability of micro/nano-fibre, in order to simulate this micro/nano-fibre real extended state in industrial products, the present invention proposes micro/nano-fibre stretching torsional specimen platform and experimental technique.
The conventional problem that realizes micro/nano-fibre stretching existence by nanometer stretching instrument, first, due to easily cataclasm in fixation procedure and distortion of micro/nano-fibre, the conventional micro/nano-fibre drawing process of realizing by nanometer stretching instrument carries out stretching experiment after cannot realizing fiber quantitatively being reversed.The second, conventional adhering method is that the two ends of fiber resin is fixed on the scraps of paper, the scraps of paper is cut off after being clamped on nanometer stretching instrument again.This method, because need certain force that fiber is pressed in resin, so easily fiber is caused to damage, affects test result.The 3rd, conventional by cardboard in the method for cardboard anchoring fiber be easily out of shape, unstability, affect fiber centering in stretching experiment.Because the cardboard in experiment can not be reused, also can impact the repetition situation of experiment.
Summary of the invention
The present invention completes in order to solve deficiency of the prior art, the object of this invention is to provide a kind of micro nanometer fiber stretching torsional specimen platform and experimental technique, micro nanometer fiber stretching torsional specimen platform of the present invention has been realized micro/nano-fibre has quantitatively been reversed to after stretching by nanometer stretching instrument, and related micro/nano-fibre adhering method also can effectively prevent the fracture and damage of fiber.This sample bench can Reusability, can not be out of shape, unstability, does not affect fiber accuracy of alignment in stretching experiment, has improved conventional efficient, also makes the repeatability of experiment better.
For achieving the above object, the technical solution used in the present invention is micro/nano-fibre stretching torsional specimen platform and experimental technique, and wherein, micro/nano-fibre stretching torsional specimen platform comprises turntable and lower turntable; On upper turntable and lower turntable, have circular hole, iron bolt is connected to an entirety by circular hole by upper turntable and lower turntable; On described upper turntable and lower turntable, be provided with sway brace, sway brace is connected with bonding platform; On described bonding platform, be provided with the stiff end being connected with testing machine.
The structure of this sample bench can also, for coordinating between upper turntable and lower turntable, can realize and freely rotating in turntable plane when fixing without iron bolt; Circular hole is opened in connection place four, is evenly distributed on turntable.
The method step that utilizes said sample platform to carry out micro/nano-fibre stretching torsion test of the present invention is as follows.
S1 is connected to an entirety by iron bolt by upper turntable and lower turntable, packs the stiff end of lower turntable into universal testing machine lower chuck, resin is applied to respectively to the bonding platform of upper turntable, lower turntable;
S2 provokes one end of tested fiber with tweezers, fiber is naturally drooped, and in the time that fiber approaches resin, fiber two ends is bonded at respectively on the bonding platform of turntable, lower turntable from side direction by blowing grey ball, and makes fiber keep relaxed state;
After S3 hardening of resin, the stiff end of upper turntable is packed into the upper grip of universal testing machine, unclamp iron bolt, pinch the bonding platform both sides of turntable, the integral multiple of turntable quarter turn in rotation, after upper and lower turntable circular hole alignment, start universal testing machine, continue to increase loading force to fiber and be pulled off.
Compared with prior art, the present invention utilizes said sample platform to carry out the method for nano-indentation experiment, because it has adopted said sample platform and experimental technique, realized micro/nano-fibre is quantitatively reversed to after stretching, related micro/nano-fibre adhering method also can effectively prevent the fracture and damage of fiber; This sample bench can Reusability, can not be out of shape, unstability, does not affect fiber accuracy of alignment in stretching experiment, has improved conventional efficient, also makes the repeatability of experiment better.
Accompanying drawing explanation
Fig. 1 micro/nano-fibre stretching of the present invention torsional specimen platform embodiment view.
In figure: 1, upper turntable, 2, lower turntable, 3, circular hole, 4, iron bolt, 5, sway brace, 6, bonding platform, 7, stiff end.
Embodiment
Below in conjunction with accompanying drawing, micro nanometer fiber stretching torsional specimen platform of the present invention and experimental technique are described in further detail.
Micro/nano-fibre stretching torsional specimen platform of the present invention comprises turntable 1 and lower turntable 2; On upper turntable 1 and lower turntable 2, have circular hole 3, iron bolt 4 is connected to an entirety by circular hole 3 by upper turntable 1 and lower turntable 2; On described upper turntable 1 and lower turntable 2, be provided with sway brace 5, sway brace 5 is connected with bonding platform 6; On described bonding platform 6, be provided with the stiff end 7 being connected with testing machine.
The structure of this sample bench can also be to coordinate between upper turntable 1 and lower turntable 2, when fixing without iron bolt 4, can realize in turntable plane and freely rotating; Circular hole 3 is opened in connection place four, and is evenly distributed on turntable.
It is as follows that the present invention utilizes said sample platform to carry out the method step of micro/nano-fibre stretching torsion test.
S1 is connected to an entirety by iron bolt 4 by upper turntable 1 and lower turntable 2, packs the stiff end of lower turntable 27 into universal testing machine lower chuck, resin is applied to respectively to the bonding platform 6 of upper turntable 1, lower turntable 2;
S2 provokes one end of tested fiber with tweezers, fiber is naturally drooped, and in the time that fiber approaches resin, fiber two ends is bonded at respectively on the bonding platform 6 of turntable 1, lower turntable 2 from side direction by blowing grey ball, and makes fiber keep relaxed state;
After S3 hardening of resin, the stiff end of upper turntable 17 is packed into the upper grip of universal testing machine, unclamp iron bolt 4, pinch bonding platform 6 both sides of turntable 1, the integral multiple of turntable quarter turn in rotation, after upper and lower turntable circular hole 3 alignment, start universal testing machine, continue to increase loading force to fiber and be pulled off.
Embodiment mono-stretches to carbon nanotube fiber wire by sample bench
Application micro/nano-fibre stretching torsional specimen platform detects the tensile mechanical properties of the carbon nanotube fiber wire being woven into by six roots of sensation carbon nano-tube fibre, by iron bolt, upper turntable and lower turntable are connected to an entirety, pack the stiff end of lower turntable into universal testing machine lower chuck, resin is applied to respectively to upper turntable, the bonding platform of lower turntable, provoke one end of tested fiber with tweezers, fiber is naturally drooped, in the time that fiber approaches resin, from side direction, fiber two ends are bonded at respectively to turntable by blowing grey ball, on the bonding platform of lower turntable, clip unnecessary fiber with scissors, and make fiber keep relaxed state, hardening of resin after 1 hour, the stiff end of upper turntable is packed into the upper grip of universal testing machine, unclamp iron bolt, start universal testing machine, loading velocity is 0.05/s, continuing to increase loading force to fiber is pulled off.Experiment finishes the rear resin that washes away bonding use with acetone, repeats above-mentioned experimentation, again obtains tensile load-stretcher strain relation curve.
Example two reverses stretching by sample bench to carbon nanotube fiber wire
Application micro/nano-fibre stretching torsional specimen platform detects the torsion tensile mechanical properties of the carbon nanotube fiber wire being woven into by six roots of sensation carbon nano-tube fibre, by iron bolt, upper turntable and lower turntable are connected to an entirety, pack the stiff end of lower turntable into universal testing machine lower chuck, resin is applied to respectively to upper turntable, the bonding platform of lower turntable, provoke one end of tested fiber with tweezers, fiber is naturally drooped, in the time that fiber approaches resin, from side direction, fiber two ends are bonded at respectively to turntable by blowing grey ball, on the bonding platform of lower turntable, clip unnecessary fiber with scissors, and make fiber keep relaxed state, hardening of resin after 1 hour, unclamp iron bolt, pinch the bonding platform both sides of turntable, turntable 10 circumference in rotation, after upper and lower turntable circular hole alignment, insert iron bolt upper turntable and lower turntable are connected to an entirety, the stiff end of upper turntable is packed into the upper grip of universal testing machine, unclamp iron bolt, start universal testing machine, loading velocity is 0.05/s, continuing to increase loading force to fiber is pulled off.Experiment finishes the rear resin that washes away bonding use with acetone, repeats above-mentioned experimentation, again obtains tensile load-stretcher strain relation curve.
By tensile load-stretcher strain relation curve of comparative analysis two embodiment, after carbon nanotube fiber wire reverses, stretcher strain will diminish but the maximum tension load that can bear will increase, the material property when carbon nanotube fiber wire mechanical property after torsional deflection is obviously different from simple bearing tension.
Claims (3)
1. a micro/nano-fibre stretching torsional specimen platform, is characterized in that: this sample bench comprises turntable (1) and lower turntable (2); On upper turntable (1) and lower turntable (2), have circular hole (3), iron bolt (4) is connected to an entirety by circular hole (3) by upper turntable (1) and lower turntable (2); On described upper turntable (1) and lower turntable (2), be provided with sway brace (5), sway brace (5) is connected with bonding platform (6); On described bonding platform (6), be provided with the stiff end (7) being connected with testing machine.
2. according to a kind of micro/nano-fibre stretching torsional specimen platform claimed in claim 1, carry out the method for micro/nano-fibre stretching torsion test, it is characterized in that: experimental technique step is as follows,
S1 is connected to an entirety by iron bolt (4) by upper turntable (1) and lower turntable (2), packs the stiff end of lower turntable (2) (7) into universal testing machine lower chuck, resin is applied to respectively to the bonding platform (6) of upper turntable (1), lower turntable (2);
S2 provokes one end of tested fiber with tweezers, fiber is naturally drooped, and in the time that fiber approaches resin, from side direction, fiber two ends is bonded at respectively on the bonding platform (6) of turntable (1), lower turntable (2) by blowing grey ball, and makes fiber keep relaxed state;
After S3 hardening of resin, the stiff end of upper turntable (1) (7) is packed into the upper grip of universal testing machine, unclamp iron bolt (4), pinch bonding platform (6) both sides of turntable (1), the integral multiple of turntable quarter turn in rotation, after upper and lower turntable circular hole (3) alignment, start universal testing machine, continue to increase loading force to fiber and be pulled off.
3. a kind of micro/nano-fibre stretching torsional specimen platform according to claim 1, it is characterized in that: the structure of this sample bench can also, for coordinating between upper turntable (1) and lower turntable (2), can realize and freely rotating in turntable plane when fixing without iron bolt (4); Circular hole (3) is opened in connection place four, is evenly distributed on turntable.
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Cited By (1)
| 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 |
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| JPS57147031A (en) * | 1981-03-06 | 1982-09-10 | Hitachi Ltd | Sample heating and drawing device |
| US6564646B1 (en) * | 1996-06-29 | 2003-05-20 | Thyssen Stahl Ag | Measuring method for determining the biaxial shaping behavior of metallic materials, more particularly sheet metal |
| CN102262016A (en) * | 2011-04-29 | 2011-11-30 | 吉林大学 | Cross-scale micro nanometer grade in-situ composite load mechanical property testing platform |
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| CN202393660U (en) * | 2011-12-31 | 2012-08-22 | 浙江省三门县世泰实业有限公司 | Material torsion testing machine |
| CN103512803A (en) * | 2013-09-26 | 2014-01-15 | 吉林大学 | Multi-load and multi-physics coupling material micromechanical performance in-situ testing instrument |
Family Cites Families (1)
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| SU1096528A1 (en) * | 1982-03-15 | 1984-06-07 | Московский Ордена Трудового Красного Знамени Вечерний Металлургический Институт | Device for article torsion-testing under high temperature conditions |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57147031A (en) * | 1981-03-06 | 1982-09-10 | Hitachi Ltd | Sample heating and drawing device |
| US6564646B1 (en) * | 1996-06-29 | 2003-05-20 | Thyssen Stahl Ag | Measuring method for determining the biaxial shaping behavior of metallic materials, more particularly sheet metal |
| CN102262016A (en) * | 2011-04-29 | 2011-11-30 | 吉林大学 | Cross-scale micro nanometer grade in-situ composite load mechanical property testing platform |
| CN102519809A (en) * | 2011-12-31 | 2012-06-27 | 浙江省三门县世泰实业有限公司 | Material torsion testing machine |
| CN202393660U (en) * | 2011-12-31 | 2012-08-22 | 浙江省三门县世泰实业有限公司 | Material torsion testing machine |
| CN103512803A (en) * | 2013-09-26 | 2014-01-15 | 吉林大学 | Multi-load and multi-physics coupling material micromechanical performance in-situ testing instrument |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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Effective date of registration: 20201127 Address after: 226000 Jiangsu Province, Nantong city Gangzha District Industrial Zone (Wen Jun Cun group eight) Patentee after: Nantong Tonglian sponge Plastic Co.,Ltd. Address before: Room 1424, Floor 4, Peony Pioneer Building, No. 2 Garden Road, Haidian District, Beijing, 100191 Patentee before: Beijing Zhonglian Technology Service Co.,Ltd. Effective date of registration: 20201127 Address after: Room 1424, Floor 4, Peony Pioneer Building, No. 2 Garden Road, Haidian District, Beijing, 100191 Patentee after: Beijing Zhonglian Technology Service Co.,Ltd. Address before: 100124 Chaoyang District, Beijing Ping Park, No. 100 Patentee before: Beijing University of Technology |
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Address after: 226000 Jiangsu Province, Nantong city Gangzha District Industrial Zone (Wen Jun Cun group eight) Patentee after: NANTONG TONGLIAN SPONGE PLASTIC CO.,LTD. Address before: 226000 Jiangsu Province, Nantong city Gangzha District Industrial Zone (Wen Jun Cun group eight) Patentee before: Nantong Tonglian sponge Plastic Co.,Ltd. |
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