Temperature effect on kinetics of isothermal crystallization of crosslinked filled LDPE—1. Particulate silica with low surface area as a filler

Abstract

The kinetics of isothermal crystallization of low density polyethylene (LDPE) crosslinked and filled with low surface area silica was investigated by DSC method. The crosslinking initiated by thermal decomposition of peroxide leads to overall retardation of crystallization. The filling of LDPE with low surface area silica leads to the increasing nucleation. The isothermal crystallization of crosslinked and filled LDPE is affected by nucleation, retardation and formation of preordered structure, all effects acting simultaneously making overall dependences sometimes rather complicated.