Labthink’s Customer Solutions for Solar Back Sheet
Solar energy is inexhaustible and the cleanest source on earth. In one hour the sun delivers as much energy to the earth’s surface as mankind consumes in one year. Solar energy is clean, sustainable, globally available, and does not harm the environment.
What is Solar Back Sheet (PV Back Sheet)?
The solar cell back sheet is the outermost layer of the PV module. The PV back sheet is designed to protect the inner components of the module, specifically the photovoltaic cells and electrical components from external stresses as well as act as an electric insulator. In order to accomplish this, the solar back sheet must be a robust construction, typically a three layer laminate, and have high dielectric properties.
Properties of Solar Back Sheet
- UV resistance
- Moisture barrier
- Mechanical properties
- Strength and durability
- Resistance to weathering
- Electrical insulation
- UL recognized
Labthink Customer Solutions for Solar Back Sheet
Moisture Barrier Property
Basically, solar back sheet is an encapsulate material which consists of fluoride and polyester film. How to determine the Moisture Barrier property of this kind of laminated films? ISO 15106 Plastics – Film and Sheeting – Determination of Water Vapour Transmission Rate, ASTM F1249 Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor and ASTM E96 Water Vapor Transmission of materials by Cupping Method.
Based on these international standards, Labthink designed the water vapor transmission rate testing systems based on different testing method, cup method, infrared Detection Method and Electronic Detection method. Labthink Instruments Company is professional in testing instruments of plastic film and laminated films with wide testing range and high testing accuracy.
Mechanical Properties
A qualified solar back sheet should have proper thickness and tensile strength. Mechanical Contacting Method thickness tester will help you get a high precise testing result at 0.1 micron accuracy. That will ensure the solar module quality in an extended degree.
As we all know, universal testing machine in the market are most for the high rigid material, such as steel. Few manufacturers are focusing on the testing machine in flexible packaging fields. But Labthink is right focusing on the testing of flexible packaging. Labthink Tensile testers are professional designed for plastic films and laminated films with test range up to 500N and testing accuracy better than 0.5% of reading value.
For more details about the Moisture Vapor Transmission Rate testing systems, please feel free to contact Yarina Gao via
Email: trade5@labthink.cn
Skype: ylabthink
Website: www.labthinkinternationa.com.cn
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