Shape memory epoxy resin system

A shape-memory epoxy-resin system consists of epoxy-resin and curing agent in proportion of 100:13.55-22.75; epoxy-resin is bisphenol A epoxy resin or bisphenol A epoxy and fatty epoxy blend resin, curing agent is p-p'-diamino-diphenyl-methane. It's light, efficient and non-toxic, and has less folding and packing volume, long storage period. It can be used for ultra-large spatial structure materials.