COMPOSITION FOR FOAMING MATERIAL WITH HIGH REBOUND RESILIENCE AND PREPARATION METHOD THEREFOR

摘要

A composition for a foaming material with high rebound resilience and a preparation method therefor. The composition comprises the following components in parts by weight: 5-95 parts of olefin polymer, 5-95 parts of thermoplastic polyurethane (TPU) elastomer, 0.1-45 parts of compatibilizer, 0.1-10 parts of foaming agent, 0.01-5 parts of crosslinking agent, 0-5 parts of crosslinking additive, and 0-10 parts of other additive. Using of the compatibilizer having a polar group or a double active group yields a compatibilization effect, such that an interfacial tension between the olefin polymer and TPU is reduced, an olefin polymer/TPU interpenetrating polymer network (IPN) structure is formed, and thus the problem of compatibility between two types of materials is solved; by means of successful introduction of the TPU component into the olefin polymer, properties of a foaming olefin polymer material, such as rebound resilience and compression permanent deformation, are greatly improved by virtue of the excellent resilience of TPU.