| 초록 |
The ethylene-propylene-diene monomer rubber's (EPDMs) were examined as crosslinking promoters in the preparation of crosslinked foams of olefin block copolymer (OBC) and ethylene-vinyl acetate copolymer (EVA) blends. The gel content of the crosslinked foam was increased as the amount of EDPM added into the blend was increased, which showed that the EPDM effectively did a role as a crosslinking promoter. This enhanced crosslinking induced the increases of density and modulus, and decrease of foam cell size. The EDPM grafted with maleic anhydride enhanced the compatibility between OBC and EVA, which made the foam cell size more homogeneous. However, the increased crosslinking by EPDM reduced the crystallinity of both OBC and EVA. |
