▎ 摘　　要

NOVELTY - Preparing polyvinylidene fluoride nano film having beta -crystal phase involves dissolving 0.1-1 wt.% graphene oxide and 5-10 wt.% polyvinylidene fluoride in 89-94 wt.% organic solvent and magnetically stirring mixture to obtain uniform dispersion. The solution is allowed to stand and de-foaming is carried out to obtain film. The film is spin coated and subjected to heat treatment. The film is dried and crystallized to obtain product. USE - Method for preparing polyvinylidene fluoride nano film having beta -crystal phase (claimed). ADVANTAGE - The method enables to prepare polyvinylidene fluoride nano film having beta -crystal phase in simple and cost-effective manner under normal atmospheric conditions that is uniform, flat, stable, and has good compactness, heat releasing property and electric property.