Foaming material with slow reduction of resilience and hardness performance, preparation method and sole

The invention discloses a foaming material with slow reduction of resilience and hardness performance, a preparation method and a sole. The foaming material comprises the following components in parts by weight: 50-60 parts of ethylene-vinyl acetate copolymer; 50 to 40 parts of a polyester block copolymer; 0.4 to 0.6 part of a cross-linking agent; wherein the polyester block copolymer comprises the following components in parts by weight: 50-70 parts of aliphatic diisocyanate; 30 to 45 parts of polyether glycol; 5-20 parts of an ethylene monomer; 0.1 to 0.3 part of an initiator; and 0.5-1 part of aliphatic dicarboxylic acid. The preparation method comprises the steps of primary mixing, further mixing, granulation, vulcanization and foaming. The prepared foaming material has the advantages of slow reduction of resilience and hardness performance. 本发明公开了一种回弹、硬度性能下降缓慢的发泡材料、制备方法和鞋底，该发泡材料包括以下重量份的组分：50-60份的乙烯醋酸乙烯共聚物；50-40份的聚酯嵌段共聚物；0.4-0.6份的交联剂；其中，所述聚酯嵌段共聚物包括以下重量份的组分：50-70份的脂肪族二异氰酸酯；30-45份的聚醚二元醇；5-20份的乙烯单体；0.1-0.3份的