Mechanical Properties of Low-density Polyethylene Without and With Compatibilizer
Streszczenie
Nanotechnology and nanomaterials are a rapidly growing interdisciplinary fields of knowledge, spanning many areas of research. Nanomaterials can be classified into nanostructured materials and nanophase/nanoparticle materials. The former usually refer to condensed bulk materials that are made of grains (agglomerates), with grain sizes in the nanometer size range, whereas the latter are usually the dispersive nanoparticles. The nanometer size covers a wide range, from 1 nm to as large as 100 to 200 nm. Nanocomposites are materials that comprise a dispersion of nanometer-size particles in a matrix. The matrix may be single or multi-component and it can be either metallic, ceramic, or polymeric. It may contain additional materials that add other functionalities to the system (e.g., reinforcement, conductivity, toughness, etc.) [1]. The nanoparticles are classified as lamellar, fibrillar, shell-like, spherical, and others. For the enhancement of mechanical and barrier properties, the anisometric particles are preferred. Polymer nanocomposites based on inorganic clay minerals have drawn a great deal of attention during the last two decades. The major reason is related to the peculiar and fascinating properties of the polymer matrix that could be obtained at very low filler contents. Compared to the neat polymer matrix, clay-based polymer nanocomposites exhibit enhanced mechanical properties, reduced gas permeability and improved thermal stability and flame retardant behaviour [2-4]. The final properties of nanocomposites depend greatly on several factors including the chemistry of the polymer matrix, its compatibility with the clay filler, the geometry of the filler, its degree of dispersion and orientation inside the matrix and also the preparation method
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