Polymer Solidification under Pressure and High Cooling Rates

摘要: Abstract Polymer solidification under processing conditions is a complex phenomenon in which the kinetics of flow, high thermal gradients and pressures determine product morphology. The study polymer structure formed pressure has been mainly made using conventional techniques such as dilatometry differential scanning calorimetry isothermal or non but at cooling rates several orders magnitude lower than those experienced industrial processes. A new equipment recently developed improved to crystallization polypropylene when subjected cooled rapidly. An experimental apparatus essentially constituted special injection mould employed. samples can be known rate pressure. Micro Hardness (MH), Wide angle x-ray diffraction (WAXD), Polarised Optical Microscopy (POM) density measurements are then used characterize sample re...