ABSTRACT
Introduction of different fillers of organic or inorganic origin is one of the most effective and economically profitable methods for enhancement of mechanical properties of polyethylene. Calcium carbonate (CaCO3) is one from such fillers, applied for this purpose for a considerable length of time. It is mainly used at different functions for the production of polyolefines films to increase productivity, giving white dull surface of a film, printing-tracing simplication. However, CaCO3, with particles of the micrometer range, is inert filler and influences weakly on the obtained composites mechanical properties. Application of CaCO3 nanoparticle changes this situation far from being always for the better even at coupling agent using [1-3]. The authors [4] showed that polymer nanocomposites, filled with CaCO3 nanoparticles and relatively low reinforcement degree was due to the interfacial low level adhesion and the indicated aggregation of nanoparticles. Two factors influence on mechanical behavior of particulate-filled polymer nanocomposites, which raises a question on one of the factors predomination or their influence of equal value. The purpose of the present chapter is the problem study on the example of nanocomposites high density polyethylene/ calcium carbonate (HDPE/CaCO3).
