Method for testing water vapor permeability of packaging film

A technology of water vapor transmission rate and encapsulation film, which is used in permeability/surface area analysis, measurement device, suspension and porous material analysis, etc. Effect

Inactive Publication Date: 2019-01-18
DONGJUN NEW ENERGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in the existing test method for the water vapor transmission rate of the packaging film, there is a problem that the water blocking film is damaged, resulting in errors in the measurement results

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  • Method for testing water vapor permeability of packaging film
  • Method for testing water vapor permeability of packaging film
  • Method for testing water vapor permeability of packaging film

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Embodiment Construction

[0033] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0034] Such as Figure 4 As shown, the application provides a method for testing the water vapor transmission rate of the packaging film 2, comprising the following steps:

[0035] Provide two chambers 1 with one end open, one chamber 1 is set as a water vapor environment, and the other chamber 1 is set as a dry environment;

[0036] A protective layer 23 made of organic material is provided on at least one side of the packaging film 2;

[0037] The opening ends of the two chambers 1 clamp the packaging film 2, and the packaging film 2 blocks the communicati...

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Abstract

The invention relates to the technical field of thin-film solar cells, in particular to a method for testing the water vapor permeability of a packaging film. According to the method for testing the water vapor permeability of the packaging film, a protective layer is arranged on the packaging film; the packaging film is extruded in two cavities, and a relatively large extrusion force is applied;the extruded position of the packaging film is the protective layer; the protective layer is made of an organic material, so that the problem that a measurement result of the water vapor permeabilityof the packaging film has an error because part of water vapor penetrates through the damaged position due to the fact that the packaging film is extruded to be damaged due to excessively high pressure can be prevented, and the accuracy of the measurement of the water vapor permeability of the packaging film can be guaranteed. Meanwhile, compared with the water vapor permeability of the packagingfilm, the protective layer can be considered to be completely permeable, so that the addition of the protective layer does not influence a test result of the water vapor permeability of the packagingfilm.

Description

technical field [0001] The invention relates to the technical field of thin-film solar cells, in particular to a method for testing the water vapor transmission rate of a packaging film. Background technique [0002] Water vapor transmission rate (WVTR-watervaporttransmission rate) is an important indicator of water-blocking materials. Water vapor transmission rate is a physical quantity that characterizes the effect of packaging film on water vapor barrier. The mass of water vapor passing through the packaging film, in g / m 2 *d. [0003] The existing water vapor transmission rate test often uses the mocon (mocon) test program. To be precise, the mocon water vapor transmission rate tester is used to detect the water vapor transmission rate of the packaged film. Simply put, the water vapor transmission rate test There are two chambers in the instrument. The film material to be tested divides the chamber into two parts, one side is a water vapor environment, and the other si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
CPCG01N15/08G01N2015/086
Inventor 张雨苏志倩
Owner DONGJUN NEW ENERGY CO LTD
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