搜索结果: 1-9 共查到“工学 isotactic polypropylene”相关记录9条 . 查询时间(0.125 秒)
Sustainable rosin acid ester as internal electron donors in Ziegler-Natta catalysts for synthesis of isotactic polypropylene with high melt flow rate
Bio-derived rosin acid esters internal electron donors Ziegler-Natta catalyst polypropylene polymerization
2023/12/11
In this contribution, novel bio-derived rosin acid ester compounds have been developed and used as internal electron donors to prepare MgCl2?supported titanium catalysts for propylene polymerization. ...
Mathematical Modelling of the Pneumatic Melt Spinning of Isotactic Polypropylene. Part III. Computations of the Process Dynamics
melt blowing air-drawing nonwovens polypropylene modelling
2009/6/17
Computer simulation of the pneumatic melt spinning of isotactic polypropylene based on the mathematical model of the process is presented. Two dynamic zones of the air jet-filament interactions along ...
The In.uence of Processing Parameters on the Supermolecular Structure of Isotactic Polypropylene in PP/LDPE Blends
isotactic polypropylene polymorphs blends processing
2009/6/16
In order to analyse the effect of the addition of low-density polyethylene (LD-PE) on the
polymorphic transformation in isotactic polypropylene (iPP), structure studies of iPP/LDPE
blends have been ...
Mathematical Modelling of the Pneumatic Melt Spinning of Isotactic Polypropylene. Part II. Dynamic Model of Melt Blowing
melt blowing of nonwovens modelling of melt air-drawing dynamic functions in melt air-drawing
2009/6/15
Mathematical Modelling of the Pneumatic Melt Spinning of Isotactic Polypropylene. Part II. Dynamic Model of Melt Blowing.
Mathematical Modeling of Pneumatic Melt Spinning of Isotactic Polypropylene. Part. I. Modeling of the Air Jet Dynamics
fiber spinning melt blowing nonwoven computational fluid dynamics turbulence
2009/2/19
In this series of publications, the process of nonwoven melt blowing of ultra-fine fibers is presented. The process starts in the dual slot die where two converging air jets draw the molten polymer st...
Structure of Isotactic Polypropylene in Composites with Natural Fibres Obtained in Various Processing Methods
Natural Fibres Obtained Various Processing Methods
2009/2/10
Structure of Isotactic Polypropylene in Composites with Natural Fibres Obtained in Various Processing Methods.
Experimental Study of the Formation of - and -Phase Isotactic Polypropylene and Estimation of the Phase Composition by Wide-Angle X-Ray Scattering
X-Ray Scattering Phase Isotactic Polypropylene
2009/2/10
Experimental Study of the Formation of - and -Phase Isotactic Polypropylene and Estimation of the Phase Composition by Wide-Angle X-Ray Scattering。
Crystallisation of isotactic polypropylene with b-nucleating agents under elevated pressure
isotactic polypropylene polymorphism pressure
2009/2/6
Samples of isotactic polypropylene with b-nucleants (triphenodithiazine and E3B) were melted betweena cover slip and a glass slide on a microscopic hot stage, after which pressure was applied bymeans ...
Effect of microstructure on the thermo-oxidation of solid isotactic polypropylene-based polyolefins
polypropylene；ethylene-propylene copolymers；thermo-oxidation；microstructure
2010/10/12
In the present work we aim to clarify the role of the microstructure and the crystalline
distribution from the thermo-oxidation of solid isotactic PP (iPP) and ethylene-propylene (EP)
copolymers. Th...