What is melt flow index? What is the relationship between MFI and molecular weight? What is the influence of polymer MFI on their processing? How to modify the melt flow index of polymers? What is the effect of melt flow index of the filled polymers/composites? What are the standards for MFI measurements?

2024年10月18日 · Abstract: The Melt Flow Index (MFI) is a crucial property of polymeric materials, particularly polypropylene (PP), which indicates its flowability and processability. This article provides a detailed explanation of the MFI calculation method, along with the underlying formulae, in the context of melt flow index calculator.

熔流指数（MFI）和熔流速率（MFR）是用于测量聚合物在熔融状态下，受到已知应用压力作用时流动特性的一种指标，也称为熔融状态的流变性能。 许多数据表中引用的MFI值是指通过已知给定孔径（模头）挤出的聚合物量，以g/10分钟或熔体体积速率以cm3/10分钟来表示。 想了解关于我们 MFI 或 MFR 的解决方案吗？ 工业物理团队随时为您提供帮助！ 联系我们. 由于聚合物由不同长度的聚合物分子链组成，链的长度决定了其流动特性。 由于在聚合过程中很难控制确切的链 …

全称 熔体流动指数 ，又称熔融指数，表示塑胶材料加工时的流动数值，MFI是塑胶材料的机械性能重要指标之一，检验塑胶原料特性MFI，是指检测其的加工流动性特性，它是美国材料与试验协会（ ASTM ）根据美国杜邦公司（DuPont）惯用的鉴定塑料特性的方法制定 ...

This study presents an assessment of the effects of usage time for polypropylene (PP) experimental samples including those dyed with pigments of different UV resistance.

2023年6月13日 · Evaluation of properties, including molecular weight (MW), crystallinity, viscosity, and melt flow index (MFI) (also known as melt flow rate [MFR]), over varying polymer blend compositions leads to mixing rules, which can improve the efficiency of designing new polymeric materials with target properties or estimating the composition of a materia...

The Melt Flow Index (MFI) refers to a characteristic used to assess the quality and flow properties of polymers. It measures the amount of material that can be deposited through a melt flow tester in a given time period, indicating the flow-ability of thermoplastic materials.

塑膠流動性指數(melt flow index)，簡稱MI或是MFI，是衡量塑膠升溫到加工溫度時，其流動性的重要依據參數。 本文根據ASTM D1238的規範，概述其測試方式與目的。

Using differential scanning calorimetry (DSC) and XRD analysis, it was found that the percentage crystallinity of modified pro-oxidant loaded PP films has decreased and this led to increased ...

本文介绍了pp料（聚丙烯）及其在塑料制品中的应用，重点解析了mfi（熔体流动指数）这一关键指标。 通过理解MFI的意义及其在实际生产中的作用，读者可以更好地选择适合特定用途的PP材料，并优化生产工艺流程，从而提升产品质量和生产效率。