同时，熔体流动速率控制偏高也是一个原因。
以熔体流动速率为例，阐述塑料性能测试条件应尽量接近生产和使用条件。
It is pointed out that the testing conditions of plastics properties should near the production and application conditions as far as possible by taking melt flow rate (MFR) for an example.
研究了引发剂种类及用量对接枝率和接枝物熔体流动速率（MFR）的影响。
The influences of different initiators and their concentrations on grafting ratio and the melt flow rate (MFR ) of the grafted polymer were studied.
应用熔体流动速率仪考察了口模半径、载荷及温度对聚全氟乙丙烯（FEP）流动性能的影响。
The influences of die radius, load and temperature on the flow properties of FEP melt were investigated by using a melt flow indexer.
熔体流动速率(MFR)的测定表明当复合阻燃剂的添加量为40份时，仍能满足加工工艺的要求。
The result of MFR showed that the compounded fire-retardant with 40 PHR could meet the needs of processing craftwork.
结果表明，聚丙烯与较高熔体流动速率的聚乙烯共混后，其型坯直径膨胀的变化范围较宽，垂伸较明显。
The results showed that the swelling range of parison diameter of pp blended with higher MFR PE is wider and its parison sag is more apparent.
分别采用热重分析、熔体流动速率和氧化开始温度等分析方法考察了其在聚丙烯（PP）中的稳定化作用。
Thermogravimetric analysis(TG), melt flow rate, and oxidation onset temperature(OOT) were employed to characterize the stability of PP containing the antioxidants.
结果表明，接枝率随着马来酸酐、引发剂用量的增加而增加，熔体流动速率随着引发剂用量的增加而减少。
The results show that the grafting ratio will increase when the content of DCP and MAH increase, but the melt index will decrease in the same time.
通过熔体强度、熔体黏度测试和熔体流动速率(MFR)、凝胶含量的变化研究了试剂体系对接枝交联改性的作用。
The effects of the agent system on the modification were investigated by testing melt-strength, melt viscosity, the changes of melt flow rate (MFR) and gel content.
用熔体流动速率仪测定了8种ABS树脂的熔体质量流动速率，并用毛细管流变仪对8种ABS 树脂流变性能进行了研究。
The melt flow indexes of 8 kinds of ABS resins were tested by means of melt flow rate instrument, and the rheological behaviors of the resins were studied by means of capillary rheometer.
研究结果表明：相同熔体流动速率的CR -PP与氢调法pp比较，CR - PP的冲击强度高，氢调法pp的断裂伸长率高。
The results showed that in the same MFR, CR-PP has higher impact strength and HM-PP has higher elongation.
测试不同储存时间下的硅烷接枝聚乙烯的熔体流动速率和硅烷交联聚乙烯电缆料在挤出机中停留不同时间后挤出物的表面状况、凝胶含量等。
By testing the MFR of silane grafted PE with different preservation time, and the surface condition and the gel content of the silane grafted extrudates with different retention time in extruder.
结果发现，在尼龙6中添加pamam后，尼龙6的拉伸强度、断裂伸长率、缺口冲击强度及熔体流动速率均有所提高，PAMAM添加量为1.0%时效果最佳。
The results show that the tensile strength, breaking elongation, impact strength and MFR of nylon 6 increase simultaneously after some PAMAM were added. The optimum increment is 1.0%.
实验结果表明：产物的接枝率和熔体流动速率（MFR）变化与聚乙烯的种类有直接关系，接枝性能从优到差的顺序为： LDPE>LLDPE>HDPE；
The results show that: the kind of PE influences the graft rate and MFR of the product directly, the sequence of grafting ability is LDPE>LLDPE>HDPE;
结果表明，UHMWPS最显著的流变特征为超高的熔体粘度和低剪切速率下出现不稳定流动。
It was found that the rheological behavior of UHMWPS is remarkably characterized by its unstable flow at low critical shear rate and ultrahigh melt viscosity.
利用高压毛细管流变仪对SEBS和TPU的流变性能进行了研究。结果表明，SEBS熔体流动表现为非牛顿性，粘度随剪切速率增加而降低。
The rheological results of SEBS and TPU by means of high pressure capillary indicates that SEBS is non-Newton fluid, the viscosity decreases when the shear rate increases.
适当增加流道的长度，可以减小胶料出口处的速度场、剪切速率场的集中程度并使之趋于均匀，能够有效降低挤出胀大和模外熔体偏转流动现象。
The velocity field and shear rate distribution are reduced and uniform along with the proper increase of slip length. The die swell and the interface deflexion phenomenon will be reduced effectively.
熔体体积流动速率（MVR）是表征聚合物流动特性的重要参数之一。
Melt volume flow rate (MVR) is one of the important parameters for characterization of flow property of polymers.
随着非牛顿剪切速率的增加，PP及其共混物的熔体粘度明显下降，表现出剪切变稀现象，呈现假塑性流体的流动特征。
As the non-newtonian shear rate increasing, the melt viscosity of the PP and their blends were decreased, and behave shear thinning, show the Pseudo-plastic fluid features.
随着非牛顿剪切速率的增加，PA 6及其共混物的熔体粘度明显下降，表现出剪切变稀现象，呈现假塑性流体的流动特征。
As the non-newtonian shear rate increasing, the melt viscosity of the PA6 and their blends were decreased, and behave shear thinning, show the Pseudo-plastic fluid features.
随着非牛顿剪切速率的增加，PA 6及其共混物的熔体粘度明显下降，表现出剪切变稀现象，呈现假塑性流体的流动特征。
As the non-newtonian shear rate increasing, the melt viscosity of the PA6 and their blends were decreased, and behave shear thinning, show the Pseudo-plastic fluid features.
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