The flow behavior of polymer melts is of great practical importance in polymer manufacturing and polymer processing. Therefore, the development of a quantitative description of flow phenomena based on a number of material properties and process parameters is highly desirable. In the same way as the ...
Extends coverage of critical topics such as electrical and magnetic properties, rheological properties of polymer melts, and environmental behavior and failure Discusses liquid crystalline polymers across chapters 6, 15, and 16 for greater breadth and depth of coverage ...
A new group-contribution modified cell model equation of state (GCMCM EOS) has been developed to predict pressure–volume–temperature (PVT) properties of polymer melts. The equation uses monomer group contributions to estimate the characteristic parameters in the modified cell model (MCM EOS) propos...
摘要: A modified ISM equation of state has been developed for polymer melts. A new correlation for the second virial coefficient has been proposed. The AAD of the calculated densities from the experimental ones is within 0.6%.关键词: Corresponding state principle Equation of state Polymer melt ...
allchainlengthsatambientconditions.I.INTRODUCTIONPoly(isoprene),betterknownasrubber,isoneofthemostcommonlyusedpolymers.Itsnaturalform,kautschuk,ishighlyabundantinnatureandfortechnologicalpurposes,syntheticvariationsareeasilyindustriallypolymerisedfromisoprene[1].Asanelastomer,itsrichfieldoftechnicalapplicationscomprises...
Such melts will be referred to as mono-molecular melts in thefollowing text. The molecular structure of PVC mate-rials is, however, rather simple.The structure of polymer materials produced at temperatures above 20 C arenormally determined by transfer to monomer which results in a molecular ...
The linear viscoelastic properties of polymer melts depend strongly and systematically on the molecular weight distribution. A molecular theory relating dy... SH Wasserman,WW Graessley - 《Polymer Engineering & Science》 被引量: 150发表: 1996年 Viscoelasticity of polystyrene melts in tensile creep exp...
The polymer blends were processed by a Banbury roll mill and an extruder under various conditions and were spray dried. The effects of composition and processing conditions on steady state and dynamic viscoelastilc properties were determined. These effects were compared with the thermal and ...
Necessary for the onset of slip is a critical value of shear stress and a certain amount of elastic shear deformation or orientation of the melt. 展开 关键词: Experimental/ elastic deformation extrusion molecular orientation non-Newtonian flow polymer melts shear flow/ elastic property polyethylene ...
Also included are some studies of blend of high polymers are not association of colloids, but are different polymers. The aims are: macromolecules held together by covalent bonds. Meth- To highlight the importance of polymer melts and ods of measuring the molecular weight of polymers were blends...