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熔体拉伸流变仪与挤出机联用Rheotens-Mastercurves and
发布:北京仪尊时代科技有限公司浏览次数:842Abstract:In a Rheotens experiment, the tensile force needed for elongation of an extruded filament is measured as a function of the draw ratio. For thermo-rheologically simple polymer melts, the existence of Theotens-mastecurves is proven. Also, for polymer melts with different average molar masses, but similar molar mass distribution and branching structure, Rheotens-mastercurves are invariant to changes in the average molar mass. It si shown, by testing several polyethylenes with different molar mass distribution and different long-chain branching, that Rheotens-mastercurves allow a direct and quantitative assessment of the drawability of polymer melts under actual processing conditions. i.e. under the action of a constant tensile force and including the effects. 高特福熔体拉伸流变仪RHEOTENS 71.97
2005-01-27相关仪器 -
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