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A device for testing the diffusion coefficient of an organic coating and a test method based on the device

A technology of organic coating and diffusion coefficient, applied in the direction of measuring devices, diffusion analysis, instruments, etc., can solve the problems of inaccurate testing and large testing errors, and achieve the effect of simple measuring equipment and true and reliable measurement data

Active Publication Date: 2019-08-16
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a device for testing the diffusion coefficient of organic coatings, which solves the problems of large test errors and inaccurate tests in the prior art.

Method used

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  • A device for testing the diffusion coefficient of an organic coating and a test method based on the device
  • A device for testing the diffusion coefficient of an organic coating and a test method based on the device
  • A device for testing the diffusion coefficient of an organic coating and a test method based on the device

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Embodiment 1

[0067] A kind of organic coating diffusion coefficient testing device of the present invention, such as figure 1 , figure 2 As shown, the polymer box 4 is included, and the material of the polymer box 4 is polyethylene. Electrode A1 and electrode B2 are respectively inserted into the small holes of the electrode. The electrode A1 and electrode B2 are titanium wires with a diameter of 1 mm and a length of 60 mm. The electrodes A1 and electrode B2 are connected to the megger 3 through wires. Wherein, the horizontal directions of the electrode A1 and the electrode B2 are parallel to each other, the distance between the electrode A1 and the electrode B2 is 1.17mm, and the diameter of the small hole is 0.99mm.

[0068] The test method based on the organic coating diffusion coefficient test device is based on the organic coating diffusion coefficient test device. Electrode A1 and electrode B2 are respectively inserted into the holes, and electrode A1 and electrode B2 are connecte...

Embodiment 2

[0089] A kind of organic coating diffusion coefficient testing device of the present invention, such as figure 1 , figure 2 As shown, the polymer box 4 is included, and the material of the polymer box 4 is polytetrafluoroethylene. The thickness of the box body is 5mm, the length is 50mm, and the width is 25mm. An electrode A1 and an electrode B2 are respectively inserted into two opposite holes. The electrodes A1 and B2 are titanium wires with a diameter of 1 mm and a length of 60 mm. The electrodes A1 and B2 are connected to the megger 3 through wires. Wherein, the horizontal directions of the electrode A1 and the electrode B2 are parallel to each other, the distance between the electrode A1 and the electrode B2 is 1.23 mm, and the diameter of the small hole is 1.01 mm.

[0090] The test method based on the organic coating diffusion coefficient test device is based on the organic coating diffusion coefficient test device. Electrode A1 and electrode B2 are respectively inse...

Embodiment 3

[0111] A kind of organic coating diffusion coefficient testing device of the present invention, such as figure 1 , figure 2 As shown, including the polymer box 4, the material of the polymer box 4 is polyvinyl chloride, the thickness of the box body is 4mm, the length is 50mm, and the width is 25mm. A pair of small holes are symmetrically opened on both sides of the polymer box 4, and each two Electrode A1 and electrode B2 are respectively inserted into the opposite small holes. Electrode A1 and electrode B2 are titanium wires with a diameter of 1 mm and a length of 60 mm. Electrode A1 and electrode B2 are connected to the megger 3 through wires. Wherein, the horizontal directions of the electrode A1 and the electrode B2 are parallel to each other, the distance between the electrode A1 and the electrode B2 is 1.2 mm, and the diameter of the small hole is 1 mm.

[0112] The test method based on the organic coating diffusion coefficient test device is based on the organic coat...

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Abstract

The invention discloses an organic coating diffusion coefficient testing device which comprises a macromolecule box, wherein a pair of small holes are symmetrically formed in the upper parts of two sides of the macromolecule box; an electrode A and an electrode B are respectively inserted into every two opposite small holes; and the electrode A and the electrode B are connected with a high-resistance meter through leads. The invention further discloses a testing method based on the organic coating diffusion coefficient testing device. The testing method comprises the following steps: firstly, adding an organic coating to be tested into the small holes in the macromolecule box, inserting the electrode A and the electrode B, continuously supplementing the organic coating till the macromolecule box is full of the organic coating, cutting the organic coating to be tested into an organic coated layer, putting the macromolecule box filled with the organic coated layer into a medium to be tested, testing the resistance between the electrode A and the electrode B by using the high-resistance meter every 12 hours, ending the testing when the resistance is steady, and furthermore calculating the water absorption capacity of the medium, thereby obtaining a diffusion coefficient D. By adopting the organic coating diffusion coefficient testing device and the testing method, the problems in the prior art that a testing device is large in testing error and inaccurate in testing can be solved.

Description

technical field [0001] The invention belongs to the technical field of organic coating performance detection, and in particular relates to a device for testing the diffusion coefficient of an organic coating, and also relates to a testing method based on the device for testing the diffusion coefficient of an organic coating. Background technique [0002] Organic coatings are widely used in surface protection, surface decoration and other fields due to the advantages of wide source of materials, simple preparation process, and low cost. Due to the complex environment in which materials are used, the performance of organic coatings varies greatly, and problems such as bubbling, peeling, and cracking of organic coatings often occur, which seriously affect the use of organic coatings. Therefore, before using the organic coating, it is very important to carry out performance testing in a simulated medium to select an organic coating material with excellent performance. The main ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N13/00
CPCG01N13/00G01N2013/003
Inventor 冯拉俊翟哲
Owner XIAN UNIV OF TECH
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