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Study of blends of HDPE and different grades of CaCO3. Part I. Factorial experimental design

2005; Elsevier BV; Volume: 24; Issue: 8 Linguagem: Inglês

10.1016/j.polymertesting.2005.08.004

1873-2348

Sylvia C. S. Teixeira, Maria Margareth Moreira, Aline Pinde Lima, Luciene Santos de Carvalho, Bianca M. da Rocha, Edson S. de Lima, Raphael A. A. F. da Costa, Ana Lúcia Nazareth da Silva, Marisa Cristina Guimarães Rocha, Fernanda M. B. Coutinho,

Natural Fiber Reinforced Composites

Calcium carbonate (CaCO3)/high density polyethylene (HDPE) composites were prepared in a HAAKE twin screw extruder. The influence of the CaCO3 particle size and content and the processing conditions were investigated by using a factorial experimental design. The dependent variables studied were tensile properties, such as Young's modulus, stress at break and toughness, and the rheological property, zero-shear viscosity, η0. Preliminary results have shown that the most significant processing variables were content and mineral filler type. Mathematical modeling has given us a more efficient evaluation of the results obtained and has become an important tool in the development of this work.