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Enhanced orientation of the water-assisted injection molded iPP in the presence of nucleating agent
The nucleated isotactic polypropylene (iPP) was
molded by water-assisted injection molding. The crystalline
morphology and orientation distribution were
studied. The results show that shear brought by melt
filling and pressurized water penetration can separately
induce the formation of oriented structures in
skin region (i.e., the region near mold cavity wall) and
the water channel region. ...
http://www.polymer.cn//ss/zhengguoqiang/publicationsshow_4462.html |
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The hierarchical structure of water-assisted injection molded HDPE: SAXS study
molding
(CIM) was also characterized. The result shows that
the WAIM part exhibits a distinct skin-core-water channel
structure which is different from the skin-core structure
for the CIM part. In the skin layer of both WAIM and
CIM parts, the shish-kebab structure was formed due to
the shear stress brought by melt filling, but the lamellar
orientation parameter of CIM part is smaller than ...
http://www.polymer.cn//ss/zhengguoqiang/publicationsshow_4461.html |
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Numerical simulation and experimental verification of the filling stage in injection molding
The linear low-density polyethylene melt is described by the modified Cross model, the dependence of melt viscosity on temperature incorporated with the Arrhenius
equation, and the Moldflow second-order model in this investigation. The mass, momentum conservation, and constitutive equations are discretized and solved by using the iterative stabilized fractional step algorithm along with the Crank...
http://www.polymer.cn//ss/davidwang/publicationsshow_4131.html |
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Competing effect of shear and β-nucleating agent on the crystallization of injection-molded iPP
β-nucleating agent
http://www.polymer.cn//ss/zhengguoqiang/publicationsshow_3445.html |
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Skin and β-crystals Development in Injection-molded iPP Along the Flow Direction
β-crystals
http://www.polymer.cn//ss/zhengguoqiang/publicationsshow_3442.html |
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Gas-Assisted Injection Molded Polypropylene: the Skin-Core Structure
gas-assisted injection molding
http://www.polymer.cn//ss/zhengguoqiang/publicationsshow_3439.html |
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Flow-induced Fiber Orientation in Gas-assisted Injection Molded Part
gas-assisted injection molding
http://www.polymer.cn//ss/zhengguoqiang/publicationsshow_3437.html |
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Preparation and Characterization of Injection-Homo-Polypropylene Filled with Nano-CaCO3
Nano-CaCO3/homo-PP composites were prepared by melt-blending using twin-screw extruder. The results show that not only the impact property but also the bending modulus of the system have been evidently increased by adding nano-CaCO3. The nano-CaCO3 particles have been dispersed in the matrix in the nanometer scale which was investigated by means of transmission electron microscopy (TEM). The tough...
http://www.polymer.cn//ss/wangwenyi/publicationsshow_2446.html |
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Organic electroluminescent device based on balanced carriers injection and transportation
作者: Wu F, Tian WJ, Zhang ZM, Ma YG, Li GW, Shen JC, Zhang LQ, Zhang BW, Cao Y
来源出版物: THIN SOLID FILMS 卷: 363 期: 1-2 页: 214-217 出版年: MAR 1 2000
摘要: The electronic structure of PDDP, T-3-OXD and Alq in for...
http://www.polymer.cn//ss/tianwenjing/publicationsshow_880.html |
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Improving the Plastics Filling Balance in Multi-cavity Molds by 2-rate Injection
Improving the Plastics Filling Balance in Multi-cavity Molds by 2-rate Injection
http://www.polymer.cn//ss/yangweimin/publicationsshow_97.html |
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