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Simple device for testing surface slide angles of fabrics

A sliding angle and fabric technology, applied in measuring devices, adopting mechanical devices, analyzing materials, etc., can solve problems such as expensive refitting costs, and achieve the effects of low cost, strong practicability, and simple structure

Inactive Publication Date: 2015-04-15
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current basic video contact angle meter can only test the static contact angle of the fabric. If the sliding angle needs to be tested, it needs expensive modification fees

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Simple device for testing surface slide angles of fabrics
  • Simple device for testing surface slide angles of fabrics
  • Simple device for testing surface slide angles of fabrics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In this preferred embodiment, the OCA20 video contact angle meter of German Dataphysics Company and this device complete the sliding angle test of a piece of super-hydrophobic fabric. Take the ruler width as 50mm. Cut the fabric into a test sample with a length of 5 cm and a width of 2 cm, and glue it on a glass slide with double-sided tape. One end of the test sample is parallel to and coincides with one end of the glass slide. Place the glass slide above the water tank 6 on the sample plate 1 . Place the device onto the platform of the OCA20. Use a microsyringe to inject 15 μl of water at a distance of 20 mm from the bottom of the sample (that is, the position indicated by the scale line). According to experience, injecting 3 μl again after the injection is terminated can make the water drop out of the needle. Then slowly lift the free end of the sample plate 1 by hand screwing. Observe the water droplet on the sample, when the water droplet starts to slide, it is ...

Embodiment 2

[0033] In this preferred embodiment, the OCA20 video contact angle meter of German Dataphysics Company and this device complete the sliding angle test of a piece of super-hydrophobic fabric. Take the ruler width as 80mm. Cut the fabric into a test sample with a length of 5 cm and a width of 2 cm, and glue it on a glass slide with double-sided tape. One end of the test sample is parallel to and coincides with one end of the glass slide. Place the glass slide above the water tank 6 on the sample plate 1 . Adjust the device to the maximum angle and place it on the platform of OCA20. Adjust the height of the platform so that the vertical distance between the indicator line 4 of the glass slide and the needle of the syringe is 1 cm, use a micro-syringe to inject 15 μl of water at a distance of 20 mm from the bottom of the sample (that is, the position indicated by the scale line), and according to experience, after the injection is terminated, inject 15 μl of water. Injecting 3 μ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to the field of fabric performances testing, in particular to a device for testing super-hydrophobic fabric slide angles. The device comprises a sample carrier board, a bottom board, rulers and a hand screw. The sample carrier board is used for holding a sample, one end of the sample carrier board is connected with the bottom board through a hinge, and the other end is a free end. A water tank with one end open is arranged on the sample carrier board. Three round holes are arranged in the bottom board, and a nut is arranged at each round hole. The hand screw drives the free end to rotate around the hinge by using the round holes and the nuts as a lifting mechanism. The two rulers are adhered on the bottom board and are used as a fixing unit and a measurement unit. Water drops are dropwise added on the test sample, the positions that the water drops start to slide or stop sliding are observed by raising or lowering of the sample carrier board, readings on the rulers are recorded, and the fabric slide angles are obtained by calculation. The device is simple in structure, easy to operate, low in cost and high in practicality.

Description

technical field [0001] The invention relates to a testing device for the surface sliding angle of a super-hydrophobic fabric, and belongs to the technical field of fabric surface performance detection. Background technique [0002] With the acceleration of people's life rhythm and the pursuit of high-quality life, textiles with self-cleaning ability have emerged as the times require. The superhydrophobic finishing of fabrics is an easy way to obtain self-cleaning fabrics. The super-hydrophobic finishing system simulates the lotus leaf effect, making the surface contact angle of the fabric reach more than 150°, and the sliding angle reach below 5°. Among them, the smaller the sliding angle, the easier it is to take away the dust and dirt on the surface of the fabric, so as to achieve a good self-cleaning effect. [0003] At present, the test of the surface properties of superhydrophobic fabrics mainly tests its static contact angle and the static contact angle after repeate...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/24G01N19/02
Inventor 刘军高晶王璐李婉迪薛海军
Owner DONGHUA UNIV
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