Back SearchTitle: MECHANICAL PERFORMANCE OF AUXETIC POLYURETHANE FOAM FOR ANTIVIBRATION GLOVE APPLICATIONS
Page Range: p.253-268
Author(s): Scarpa F; Giacomin J; Zhang Y; Pastorino P
File size: 336K
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Issue Year: cp
Volume: 24
Issue No: No. 5
Abstract
The static and dynamic mechanical properties of open cell auxetic polyurethane (PU) foams were investigated by Poisson's ratio measurements, compression and transmissibility testing, and the results are compared with those for conventional PU foam in terms of potential applications in anti-vibration gloves. A finite element simulation of the indentation characteristics of auxetic foams is also discussed. 23 refs.
Title: DO NANOPARTICLES REALLY ASSIST IN NUCLEATION OF FINE CELLS IN POLYOLEFIN FOAMS
Page Range: p.269-277
Author(s): Ramesh N S; Lee S T
File size: 295K
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Issue Year: cp
Volume: 24
Issue No: No. 5
Abstract
The effects of nanoclay on the nucleation and cell growth in foams of nanocomposites of polypropylene (PP) with various proportions of organically modified montmorillonite nanoparticles using butane as blowing agent were investigated by SEM, tensile and flexural testing. The results are discussed in comparison with those for PP/talc composite foams in terms of cell size and mechanical properties. 7 refs.
Title: INFLUENCE OF MOULD TEMPERATURE ON THE THICKNESS OF A SKIN LAYER AND IMPACT STRENGTH IN THE MICROCELLULAR INJECTION MOULDING PROCESS
Page Range: p.279-297
Author(s): Lee J J; Cha S W
File size: 773K
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Issue Year: cp
Volume: 24
Issue No: No. 5
Abstract
The effects of mould temperature on the thickness of a skin layer and impact properties of parts made using a microcellular injection moulding process were investigated experimentally for polypropylene/talc blends foamed with supercritical nitrogen by SEM and impact testing. The development of a mathematical model to predict skin layer thickness based on mould temperature, polymer melt temperature and injection flow rate is described. 19 refs.