您要查找的是不是:
- Keywords polypropylene(PP);foam;capillary rheometer;extrudate swell;die swell ratio; 聚丙烯;发泡;毛细管流变仪;挤出胀大;膨胀率;
- die swell ratio 模口膨胀比,挤出胀大比
- When L/D is quite great, the influence of die entrance angle on die swell is less. 当L/D较大时,口模入口角对挤出胀大影响较小。
- The results of experiments showed the swell ratio model established in this paper could be applied to the predication of swell ratio of PP foam system. 通过结果检验可知,本文确立的胀大模型可以用于预测聚丙烯发泡体系胀大比。
- The previous researches indicate that the entrance effect and the shear effect are the main reasons for die swell of polymer in the steady field. 高聚物熔体流动的入口效应和在口模中的剪切作用是导致稳态场中挤出物胀大的主要原因,而振动力场能有效地减小高聚物的挤出胀大比。
- ASAC filled NR compound possessed good flow property and similar die swell to that of semi reinforcing carbon black filled compound. ASAC填充NR胶料的流动性好,挤出胀大效应与填充半补强炭黑胶料相近
- Influences of composition of the blends, shear ratio, shear stress on swell ratio and melt apparent viscosity were discussed. 讨论了共混物的组成、剪切应力和剪切速率对熔体粘度和膨胀比的影响。
- Die swell of extrudate indicated that the relaxation rate of Sn-coupled SSBR compound was faster and the die swell was less obvious than that of ESBR. 挤出胀大效应表明锡偶联型SSBR混炼胶的弛豫速度比ESBR混炼胶的快,挤出胀大小,加工性能优于ESBR。
- Colligate the relationship between swell rate and capillary number to establish the prediction model of the swell ratio and the average cell diameter for PS/SCCO2 foaming system. 综合胀大比和毛细管数的关系,提出了聚苯乙烯/超临界CO2发泡体系挤出胀大和泡孔平均直径预测模型。
- In this paper the flowability,die swell and melt fracture of ACR/PVC blends prepared from three types of acrylate copolymers and polyvinyl chloride have been studied. 本文研究了三种国产丙烯酸酯类共聚物(ACR)与聚氯乙烯(PVC)制得共混物的流动性、离模膨胀和熔体破碎。
- The microstructure,rheological properties and die swell of clay/SBR nano composite and carbon black/SBR compound were investigated with TEM and Monsanto rheometer. 用透射电子显微镜和孟山都流变仪研究了SBR粘土纳米复合材料和SBR炭黑混炼胶的微观结构、流变性能和挤出膨胀性能。
- The effects of geometrical parameters of die and shear rates on the die swell of PVC extruded through rectangular die were discussed, and the special rules were also analyses theoretically. 研究了PVC材料通过矩形口模挤出时,口模的几何参数和剪切速率对离模膨胀的影响,并从理论上分析了其特征规律。
- And the first normal stress difference near the exit of die increases with relaxation time increasing which result in the extrusion die swell and the warpage of side walls increasing. 此外,随着松弛时间的增大,口模出口附近气辅段的第一法向应力差增加,从而导致离模膨胀和两侧壁向内的翘曲变形均增大。
- Based on these models,the three dimensional isothermal numerical simulation and experimental study were carried out for the die swell of the T-shaped plastic profile extrusion from a gas-assisted die. 文章建立了描述塑料异型材气辅挤出成型过程的理论模型,对T型异型材气辅口模挤出成型过程进行了三维等温数值模拟和实验研究。
- The uniform design was used to investigate the factors that affect yield,swelling ratio and average diameter of CSM. 采用均匀设计实验法,考察了影响产率、溶胀度、平均粒径的因素,对实验结果进行了回归分析和多目标综合寻优。
- Study on Swell Ratio Model of PP Foam 聚丙烯发泡体系挤出胀大模型的研究
- The effects of chlorhexidine acetate content and the amount of crosslinking agent on water absorbance, swelling ratio and porosity were investigated. 研究了体系中醋酸氯己啶含量和交联剂用量对合金膜吸水率、溶胀比和孔隙率等性能的影响。
- With the increasing of NIPAm content, the swelling ratio of P(NIPAm-co-AAm) increased and that of PAAc/P(NIPAm-co-AAm) decreased. P(NIPAm-co-AAm)凝胶具有热缩温敏性。 PNIPAm凝胶的相转变温度为35℃。
- MESH DEPENDENCE OF DIE SWELL OF NEWTONIAN FLUID 牛顿流体挤出胀大模拟的网格依赖性
- The effect of PH value of the system and the amount of GA on the time of glomeration and swelling ratio of PVA beads were studied. 同时还讨论了体系PH值、GA用量等因素对PVA成球时间及球珠溶胀性能的影响。