The longevity of EVA film laminated glass depends on various factors such as the type of EVA film used, the thickness of the glass, the number of layers of EVA film, the temperature and time of lamination, and the environmental conditions. Here are some general guidelines for the sustainability of EVA film laminated glass:
The lamination temperature and time depend on the type of EVA film and the thickness of the glass. Indoor EVA film requires lower temperatures (around 110 degrees C) compared to outdoor EVA film (around 130 degrees C). Thicker glass with more layers of EVA film requires longer keeping time at the lamination temperature. The type of glass also affects the lamination process. Tempered glass requires longer keeping time compared to flat glass. Environmental factors such as colder weather may require longer keeping time. Different glass laminating machines may have different heating characteristics, so the processing parameters may need to be adjusted accordingly. It is important to follow the processing instructions provided by the EVA film manufacturer, but adjustments can be made based on specific requirements and conditions. According to cncglass.com, the mobility of different thicknesses of EVA interlayer films is different when heated. Thicker EVA interlayer films have more mobility than thinner ones. Therefore, the time of the high-temperature period should be adjusted based on the thickness of the EVA interlayer film to avoid leakage and bubbles in the edges of the laminated glass. In terms of the lamination process itself, laminating glass with EVA film does not require an autoclave. The laminating process can be completed in a one-step laminating oven, which is simpler and easier to process compared to laminating with PVB film. The EVA film is not adhesive before heating but melts and reacts after heating. The laminating process should include proper vacuuming and drying to ensure the adhesion of the EVA film and prevent bubbles. EVA film offers advantages such as high tensile strength, excellent transparency, outstanding adhesion, UV protection, high impact resistance, good temperature withstanding, water resistance, humidity durability, long-term aging resistance, and sound barrier. The UV blocking rate of EVA film can vary, with indoor EVA film having a lower UV blocking rate and outdoor EVA film having a higher rate.
In conclusion, the sustainability of EVA film laminated glass depends on various factors and can be influenced by the type of EVA film, thickness of the glass, lamination temperature and time, and environmental conditions. It is important to follow the processing parameters provided by the EVA film manufacturer and make adjustments as necessary based on specific requirements and conditions.