Today, solar cell products are used in many industries due to their advantages of energy saving, environmental protection and long service life. The service life of such products is generally designed according to more than 25 years. To ensure that the product reaches such a long service life, it is necessary to strictly control the quality of each component, and the role of the backplane should not be underestimated. The backplane plays a role in protecting the photovoltaic components. The role of the battery. One of the important indicators for measuring the performance of the backsheet is the water vapor permeability. If the performance of the backing plate blocking water vapor permeation is poor, the moisture in the air (especially the rainy weather will be larger) will enter the inside through the backing plate , and the penetration of water vapor will affect the bonding performance of EVA, resulting in The backing plate is detached from the EVA, thereby allowing more moisture to directly contact the cell sheet to oxidize the cell sheet. The backsheet used for solar cell module packaging is also generally called TPT polyfluoroethylene composite film . TPT generally uses three-layer structure ( PVF/PET/PVF ), and the outer protective layer PVF has good environmental corrosion resistance. It has good insulation properties for PET polyester film, and the inner layer PVF needs to be surface treated and EVA has good bonding properties.

　　 Jinan Languang Electromechanical Technology Co., Ltd. () as an excellent international supplier of testing instruments and testing services, is now recommending the PERME ^TM BMI TSY-T series moisture permeability tester and PERME ^TM BMI W3/330 water vapor transmission rate to the industry. Test system, thickness gauge, XLW (PC) intelligent electronic tensile testing machine, BLD-200S electronic peeling test machine and other products.

1. PERME ^TM TSM-T series moisture permeability tester: There are three models in this series, the models are TSY-T1L, TSY-T1H, TSY-T3. This series of instruments adopts the principle of weighing method and is suitable for the determination of water vapor transmission rate of backboard, plastic and composite materials. Through the measurement of the moisture permeability, the technical indicators of the control and adjustment materials are achieved to meet the needs of product application.

The operation of this type of instrument is intelligent, and the whole experimental process is fully automatic without manual intervention. Among them, TSY-T3 type moisture permeability tester adopts 12-cavity independent test, which can test 12 materials at the same time. The test process and the control of temperature and humidity are all automated.

2 , PERME ^TM Bomi W3/330 water vapor transmission rate test system

The PERMETMW3/330 water vapor transmission rate test system adopts the patented cavity structure design to achieve the combined test of three identical or different samples at the same time, and the results are independent. At the same time, the host, satellite mode, and one host are used. It is able to connect 9 satellite machines, and can simultaneously test 30 samples of zui, and Zui greatly meets the testing needs of large laboratories.

3 , PV module visual inspection

Labthink also offers the SPS-80T dual-source color matching plate for inspection of cell debris, dark lines, color, chromatic aberration, and soldering. The SPS-80T uses a dual function setting of CIE D65 light source and A light source. The technical indicators fully meet the CIE International Commission on Illumination and CY3 - 91 standards for color evaluation and color of the lighting conditions specified color. It can be used for inspection applications around the clock.

4 , EVA peel strength testing of photovoltaic modules

XLW ( PC ) intelligent electronic tensile testing machine and BLD-200S electronic peeling testing machine are used for the detection of peel strength of EVA adhesive in photovoltaic modules .

5 , battery thickness detection

The CHY-C2 or CHY-CA thickness gauge can be used for the detection of the thickness of the battery to meet the requirements of high-precision testing of the thickness of the battery. The test resolution is up to 0.1 micron; in addition to the high precision and high efficiency of the CHY-C2 type, the CHY-CA thickness gauge adopts the automatic forward drive system for measuring samples, which greatly improves the test efficiency and fully satisfies the user. Requirements for continuous and efficient testing.