【摘要】 本文就 Ｅ Ｖ Ａ 多功能膜在指导应用开发方面的性能做了对比讨论， 其中包括：透光性、增温保温性、流滴及防雾性、防尘性和防老化性能。各种数据表明， Ｅ Ｖ Ａ膜的综合性能良好，即流滴性能优于 Ｐ Ｅ 膜， 长时间保持高透光率，防尘性能远远优于 Ｐ Ｖ Ｃ 膜，是值得大力推广使用的一种新型农用棚膜。更多还原

【Abstract】 The properties of multifunctional EVA film for application and development were discussed by comparison,iucluding the transparence,thermal increasing and insulation,dripless,ant fogging,anti dust and anti ageing properties.All the data showed that EVA film generally had good properties,for instance,the dripless property of EVA film was better than that of PE film .EVA film could keep high transparence for a long time,and had much better anti dust property than PVC film had.EVA film was a good sort of new greenhouse film to be spread.更多还原