▎ 摘　　要

NOVELTY - Semi-rigid epoxy resin foam material, comprises flexible segment-containing linear epoxy resin (II). USE - The semi-rigid epoxy resin foam material is useful in fields of aerospace, military and national defense, automobile industry, biology, electronics and medicine (claimed). ADVANTAGE - The semi-hard epoxy resin foam material has proper hardness, excellent damping performance, good comprehensive performance and uniform cell. It is convenient to manufacture, short period, and has proper density, good performance and high flexibility. DETAILED DESCRIPTION - Semi-rigid epoxy resin foam material, comprises flexible segment-containing linear epoxy resin of formula (II). quare box = rigid segment; and dotted line = flexible segment, and rigid segment refers to segment containing the benzene ring structure in the epoxy resin, preferably segment containing aliphatic structure in epoxy resin. An INDEPENDENT CLAIM is included for preparation of (I).