Sampling method for dual-glass-assembly interior-packaging-material cross linking degree

Abstract

The invention relates to the detecting technology of a solar cell, in particular to a sampling method, used for solar-cell dual-glass assembly detecting, of the dual-glass-assembly interior-packaging-material cross linking degree. The method includes the steps that front glass and back glass of a dual-glass assembly and packaging-material front-back films are prepared, and high-temperature cloth is manufactured into a plurality of high-temperature cloth patches with the size required by a detected sample; the back glass is placed on a plane, the first set of high-temperature cloth patches are arranged on the positions required to be detected, and then are covered with front-back film packaging materials, the second set of high-temperature cloth patches corresponding to the first set of high-temperature cloth patches in position are further arranged on the front-back film packaging materials and then are covered with the front glass, and preliminary sample preparation is completed; after preliminary sample preparation is completed, the sample is sent to a laminating machine to be laminated; the portions, with the high-temperature cloth, of the laminated sample are smashed, and a cross-linking-degree small sample clamped in the middle of the high-temperature cloth is taken out to be subjected to cross-linking-degree testing. According to the sampling method, the true value of the cross linking degree inside the assembly can be obtained, and reliable data results are provided for the production technology.

Description

technical field [0001] The invention relates to a detection technology of a solar cell, in particular to a sampling method for the crosslinking degree of a double-glass component internal packaging material used for the detection of a solar cell double-glass component. Background technique [0002] In the manufacturing process of crystalline silicon solar cells in the form of double-glass modules, two layers of glass need to be laminated and combined through packaging materials, and the degree of cross-linking of the packaging materials inside double-glass modules has an important impact on the quality of the product, so it is necessary to Carry out sample testing. The existing sampling methods for the crosslinking degree of double glass components are as follows: [0003] One sampling method is to clamp two layers of POE with a high-temperature cloth (size 300mm*300mm) and place it on a laminator for lamination sampling. This method is easy to sample, and the test results...

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Problems solved by technology

This method is easy to sample, and the test results are highly stable, but it is quite different from the real internal environment of the double-glass module, which affects the credibility of the test results;

[0004] Another sampling method is to sandwich the sample prepared in method 1 with two layers of glass (size 300mm*300mm) and place it on a laminator for lamination sampling. This method is close to the real environment inside the module, but due to the high temperature cloth Existence, when vacuuming, it is easy to take away the cross-linking agent, affecting the accuracy of test results

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