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Device for testing organic gas transmissivity

A test device, organic gas technology, applied in the direction of measurement device, permeability/surface area analysis, suspension and porous material analysis, etc., can solve the problems affecting the accuracy, repeatability and reproducibility of test data, poor pipeline sealing, In order to improve the convenience of testing, solve the problem of adsorption and condensation, and improve the test accuracy

Inactive Publication Date: 2012-08-01
LABTHINK INSTR
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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 solve the poor sealing performance and easy leakage of pipeline connection and pipeline itself in the prior art, and the unreasonable layout of the pipeline causes the volume change of the pipeline to affect the accuracy, repeatability and reproducibility of test data. problem; provide a test device for organic gas permeability; the integrated structural block of the device is small in size, compact in structure, simple in structure, clear in principle, convenient in application, and accurate in quantification, and solves the problem in testing the gas permeability of thin films. Inaccurate sampling volume, difficult sampling, poor sampling accuracy, etc.

Method used

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  • Device for testing organic gas transmissivity
  • Device for testing organic gas transmissivity
  • Device for testing organic gas transmissivity

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Experimental program
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Effect test

Embodiment 1

[0035] An organic gas transmission rate test device, combined with Figure 1-Figure 6 Among them, the present invention includes three parts: quantitative sampling device, permeation tank, and detection device 31, wherein the permeation tank is divided into two parts by sample 50, the upper cavity 11 of the permeation tank and the lower cavity of the permeation tank, and the lower cavity of the permeation tank includes three parts: a structural block 16, a valve, and a through hole. In the part, the permeation tank is connected with the detection device 31 through a quantitative sampling device. The structural block 16 is provided with a permeation air hole 51 , a sampling hole 52 , a vacuum pump air hole 53 and a carrier gas input hole 54 . Among them, the permeable air hole 51 is connected with the valve I24 through the through hole IV23; the vacuum pump air hole 53 is connected with the valve II27 through the through hole V28; the carrier gas input hole 54 is connected with...

Embodiment 2

[0038] An organic gas transmission rate test device, combined with Figure 2-4 , Figure 7-11 In this embodiment, the temperature of some structures in the quantitative sampling device is controlled to achieve a good test for gases with certain adhesion. Respectively connect the multi-station communication valve 32, the quantitative device 19, the pipeline II18 and the pipeline V20 connecting the multi-station communication valve 32 and the quantitative device 19, and the pipeline IV30 connecting the multi-station communication valve 32 and the detection device 31. The multi-station communication valve 32 and the pipeline VI21 ​​of the valve IV22 carry out temperature control. At least one of the multi-station communication valve 32 and the quantitative device 19 has an independent temperature control device, and at least one of the pipeline II18, the pipeline IV30, the pipeline V20, and the pipeline VI21 ​​is provided with a pipeline temperature control device. device. Whe...

Embodiment 3

[0040] An organic gas transmission rate test device, combined with Figure 2-4 , Figure 7-11 , in this embodiment, the multi-station communication valve temperature control device 66, the quantitative device temperature control device 65, and each pipeline temperature control device can adopt liquid temperature control devices, air temperature control devices, metal heating tubes, metal heating wires and Various methods such as heat-insulating materials and heat-insulating devices are used to realize it. For other contents, refer to Embodiment 2, which will not be repeated here.

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Abstract

The invention discloses a device for testing organic gas transmissivity. The device comprises a quantitative sampling device, a permeation pond, a detection device and a connection pipeline between the quantitative sampling device and the detection device, wherein the quantitative sampling device comprises a valve I, a valve IV, a multi-station communicating valve, a quantification device and connection pipelines connected among the components; the permeation pond is divided into an upper permeation pond cavity and a lower permeation pond cavity by a sample; the lower permeation pond cavity comprises a structural block, a valve and a through hole and is used for connecting the permeation pond and the detection device through the quantitative sampling device; the structural block is provided with a permeation gas hole, a sampling hole, a vacuum pump gas hole and a carrier gas input hole; and the permeation pond is connected with the detection device through the quantitative sampling device. The device has a simple structure and is convenient to operate; and the problems of inaccurate sampling amount, sampling difficulty, low sample injection precision and the like which are caused by sample gas pressure during test of gas permeability of a thin film are solved.

Description

technical field [0001] The invention relates to the technical field of barrier property detection, in particular to a test device for detecting organic gas permeability of materials. Background technique [0002] The organic gas transmission rate test belongs to the high-end technology in the barrier test. The permeation cell is the main part of the gas transmission rate test device, and the more critical part is the lower chamber of the permeation cell. The principle of testing the organic gas transmission rate of the thin film is to place the diaphragm on the lower chamber of the permeation cell, and then install the upper chamber of the permeation cell above the diaphragm. The lower chamber of the permeation cell and the upper chamber of the permeation cell form the entire permeation cell. Apply a certain pressure to the test gas on one side of the diaphragm (the upper chamber of the permeation cell), use a vacuum pump to evacuate the other side (the lower chamber of the ...

Claims

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Application Information

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IPC IPC(8): G01N7/10G01N15/08
Inventor 姜允中
Owner LABTHINK INSTR
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