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Protein staple fiber testing device

A testing device and short fiber technology, applied in measuring devices, using stable tension/pressure to test the strength of materials, instruments, etc., can solve the problem of fiber bundle slippage, can not meet the testing requirements of protein short fibers, and short fibers cannot be used for strong elongation. test, etc.

Active Publication Date: 2020-06-02
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When testing short protein fibers, the force-bearing part needs to be very short, resulting in slippage of the fiber bundle during the test, so short fibers usually cannot be tested for tensile strength
[0004] Therefore, in view of the situation that ordinary test fixtures cannot meet the testing requirements of protein short fibers, it is urgent to design a test device suitable for protein short fibers to improve the accuracy and success rate of protein short fiber testing.

Method used

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  • Protein staple fiber testing device
  • Protein staple fiber testing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The present invention provides a device suitable for protein short fiber testing. Among them, the device suitable for protein short fiber testing includes a load sensing connection device 1 , an upper clamping device 2 , a lower clamping device 3 , an upper clamping force control device 4 and a lower clamping force control device 5 .

[0059] The upper clamping device 2 is installed on the load-sensing connection device 1, and the load-sensing connection device 1 is connected with the tension sensor. It should be noted that the connection method between the load-sensing connection device 1 and the tension sensor can be any way. Disassembly and assembly, the present invention discloses that the load sensing connecting device 1 and the tension sensor are detachably connected, and the load sensing connecting device 1 is connected with the tension sensor by interference fit, that is, the metal rod of the tension sensor is connected to the load sensing connecting device 1. m...

Embodiment 2

[0064] In the second embodiment provided by the present invention, the structure of the test device suitable for short protein fibers in this embodiment is similar to that of the test device for short protein fibers in the first embodiment, and the similarities will not be repeated here. Only the differences are described.

[0065] In this embodiment, the present invention specifically discloses that the upper clamping device 2 includes a first pressing rod 201, a first clamping piece 202 and a second clamping piece 203, the load sensing connecting device 1 is provided with a first fulcrum seat, A pressing rod 201 is hinged on the first fulcrum seat, and the clamping end of the first pressing rod 201 is connected to the first clip 202 . The second clip 203 is fixed on the load sensing connection device 1, and the upper clip force control device 4 is connected to the first clip 202, and can control the clamping force between the first clip 202 and the second clip 203, The firs...

Embodiment 3

[0092] The present embodiment uses the short protein fiber testing device provided in embodiment two to carry out the test, and the specific embodiment takes 3.0mm hair short fiber as the test object, and the test method is shown in figure 1 .

[0093] The main component of short hair fibers is keratin, which is hard and smooth, with a diameter between 40 μm and 400 μm.

[0094] First, assemble the four clips into the upper clamping device 2 and the lower clamping device 3, and use sandpaper to polish the clip surfaces of each clip to make each pair of clips clamp in a natural state without gaps; then, assemble the The upper clamping device 2 and the load sensor are socketed through the sensor metal rod, and the sensing metal rod is fixed on the tensile instrument through the elastic metal sheet 12 to ensure that the entire upper chuck device maintains a vertical direction; then, the assembled The lower clamping device 3 is assembled on the lower chuck movement control device...

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Abstract

The invention discloses a protein staple fiber testing device. The protein staple fiber testing device comprises a load sensing and connecting device, an upper clamping device, a lower clamping device, an upper clamping force control device and a lower clamping force control device. The upper clamping device is installed on the load sensing and connecting device, and the load sensing and connecting device is connected with a tension sensor. The lower clamping device can be mounted on a test system supporting block, the upper clamping device and the lower clamping device are used for clamping the two ends of a to-be-tested protein staple fiber respectively, and the upper clamping force control device and the lower clamping force control device adjust the clamping force of the upper clampingdevice and the clamping force of the lower clamping device respectively. The clamping force of the upper clamping device and the lower clamping device can be adjusted according to different to-be-tested protein staple fibers, so that the slippage probability of the to-be-tested protein staple fibers is reduced, and the accuracy and the success rate of the protein staple fiber test are improved.

Description

technical field [0001] The invention relates to the technical field of fiber clamps, in particular to a testing device for short protein fibers. Background technique [0002] Protein short fiber is a new type of fiber material with a length of 3mm to 150mm formed by natural protein or its structural analogs, and has good biocompatibility and biodegradability. Among them, fibrous materials derived from biomechanical structural proteins have the advantages of low density and super mechanical properties. In the fields of military industry, aerospace, automobile and civil engineering, the demand for high-strength and high-tough protein short fiber materials is very urgent. Protein short fibers have excellent reinforcing properties, which are better than commonly used long fiber skeleton materials in many cases, and do not require complex processing technology, so the production process can be simplified, and the degree of production automation and continuity can be improved. I...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N3/04
CPCG01N3/04G01N3/08G01N2203/0017G01N2203/028G01N2203/0411
Inventor 刘凯于洋李敬敬张洪杰
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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