Learn what melt flow index (MFI) is in polymers, and its influence on processing and material performance. Then, use it to select your plastics grades.

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.

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而成。

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.

MFI is expressed in grams of polymer per 10 minutes of duration of the test. Synonyms of Melt Flow Index are Melt Flow Rate and Melt Index. More commonly used are their abbreviations: MFI, MFR and MI. Confusingly, MFR may also indicate "melt flow ratio", the ratio between two melt flow rates at different gravimetric weights.

Understand the importance of the Melt Flow Index (MFI) in polymer processing. Learn how MFI helps determine polymer flowability, influencing material selection for processes like injection molding and extrusion. Discover how MFI impacts product quality, production efficiency, and polymer properties such as molecular weight and viscosity.

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。

The tensile properties and thermal stability of modified pro-oxidant loaded PP films decreased as confirmed by universal testing machine (UTM) and thermogravimetric analysis (TGA).

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。

2016年8月9日 · 熔融指数 (Melt Flow Index，MFI)，全称熔液流动指数，或熔体流动指数，是指一种表示塑胶材料加工时的流动性能的数值。 它最初是由美国量测标准协会根据美国Dupont (杜邦公司)惯用的鉴定塑料特性的方法制定而成。 MFI的测量方法一般是根据 ASTM D1238 所规范的方法测得。 它的原理是将塑料或树脂放入一固定内直径的金属套筒中，并加热使塑料或树脂融化后，再给予一定的荷重于活塞上，利用活塞上的重量将已熔融的塑料从一小孔中押挤出来，并计算其 …