VEGETABLE OIL-BASED CARTILAGE BIONIC CUSHIONING AND SHOCK-ABSORBING MATERIAL, AND PREPARATION METHOD AND USE THEREOF

摘要

The present invention belongs to the technical field of cushioning materials. Disclosed are a vegetable oil-based cartilage bionic cushioning material, and a preparation method therefor and an application thereof. The vegetable oil-based cartilage bionic cushioning material is formed from a premix A and an isocyanate mixture B, the premix A comprising a vegetable oil-based modified polyol, a type 1 polyether polyol, a type 2 polyether polyol, a polymer polyol, a surfactant, a foaming agent, a chain extender, a catalyst and a cell regulator. The type 1 polyether polyol is a polyether polyol having a molecular weight of 400-1000 and a hydroxyl value of 110-280 mgKOH/g, and the type 2 polyether polyol is a polyether polyol having a molecular weight of 1000-10000 and a hydroxyl value of 25-56 mgKOH/g. The present material is environmentally friendly, porous and breathable, and has a high cushioning effect and a low permanent deformation rate.