Alumina Whisker Selection to Design Fiber-Reinforced Polyethylene Composites

作者：Ares Ana^*; Jose Abad Maria; Noguerol Rosalia; Dopico Sonia; Cerecedo Carmen; Valcarcel Victor; Miguel Caamano J; Guitian Francisco

来源：Polymer - Plastics Technology and Engineering, 2014, 53(11): 1119-1130.

DOI：10.1080/03602559.2014.886113

• Alumina whiskers
• Flexural properties
• Morphology
• Polyethylene
• Rheology
• Thermal properties

New polyethylene composites with alpha-Al2O3 whiskers are produced using four fibers (unpurified, cleaned, ribbon-shaped and silica-coated) differing in their purification level or surface. The influence of different fibers on the morphological, thermal and rheological properties of composites is analyzed. The composites with the ribbon-shaped and the silica-coated whiskers show the most suitable morphology and the best rheological properties together with a lower cost. The nucleating action of these fibers increases the crystallization temperature and the crystallinity of polyethylene. The enhancement in degradation temperature and flexural parameters prove that both types of alumina whiskers produce a clear reinforcement in polyethylene matrix.

• 出版日期2014