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A complete three-dimensional morphological analysis is performed to determine the size and deformation of both foam cells and dispersed phase particles in the extrusion foaming of HDPE/PP blends. Each dimension is carefully measured to determine interaction between blending and foaming on the...
In this article the influence of long-chain branching on the foaming behavior of polypropylene (PP) is investigated. Different branching contents are achieved by blending a linear PP (L-PP) and a long-chain branched PP (LCB-PP). Whereas, the L-PP does not exhibit any strain hardening in...
A numerical method using an impulsive excitation to excite and obtain the acoustic frequency response functions of isotropic open cell plastic foams is presented. The proposed three-dimensional finite element frequency domain acoustic analysis (3D FEFDAA) is first used to validate the acoustic...
Open cell microporous bisphenol-A polycarbonate (PC) films are made by a novel, solvent-free processing: drawing PC in supercritical carbon dioxide (scCO 2 ). The pore size is less than 1.0 m, and the porosity is in the range of 20-70% and is highly tunable. The porous film has mechanical...
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