改性纳米材料对EVA胶膜耐老化性能的影响

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中图分类号：TQ317 文献标志码：A文章编号：1001-5922（2026）03-0712-05

Influence of modified nanomaterials on aging resistance of EVA adhesive film

ZHOU Xingmeng，ZENG Jindong，XIONG Weicheng，ZHU Xiujuan，ZHOU Le（Changzhou Betterial Film Technologies Co.，Ltd.，Changzhou 2131OO，Jiangsu China）

Abstract：Three nano-oxides （silicon oxide，magnesium oxide，and aluminum oxide）of the same period were selected and incorporated into photovoltaic EVA adhesive filmsviathe tape casting and extrusion process.The light transmitance，acid value afteraging，andaging peel strength of the prepared films were tested.Theresultsshowed that under the same conditions，the film prepared with magnesium oxide exhibited the lowest acid valuebut a decrease in light transmitance.To further improve the dispersibility and aging resistance of magnesium oxide，three types of silanes（KH570，KH56O，andA171）were used for itssurface modification.TheEVAadhesive films with modified magnesium oxideshoweda significant improvement in light transmitance.PID aging tests indicatedthatthe photovoltaic modules encapsulated with KH56O-modified magnesium oxide films suffered the mildest batery corrosion after192 h of PID aging，with a power attenuation of less than 5% —a performance significantly superior to that of films modifiedwith KH570 or A171.The incorporation of modified nano-oxides into EVA adhesive films has greatly enhanced the reliability of photovoltaic modules.

Key words ：EVA adhesive film ; nano-oxides ; surface modification ; aging property

随着“双碳”政策的逐步深化和能源体系改革的不断推进，光伏发电因其清洁高效的优势，装机量呈现逐年上升趋势。（剩余7587字）