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- Melt_flow_index abstract "The melt flow index (MFI) is a measure of the ease of flow of the melt of a thermoplastic polymer. It is defined as the mass of polymer, in grams, flowing in ten minutes through a capillary of a specific diameter and length by a pressure applied via prescribed alternative gravimetric weights for alternative prescribed temperatures. Polymer processors usually correlate the value of MFI with the polymer grade that they have to choose for different processes, and most often this value is not accompanied by the units, because it is taken for granted to be g/10min. Similarly, the test load conditions of MFI measurement is normally expressed in kilograms rather than any other units. The method is described in the similar standards ASTM D1238 and ISO 1133.Melt flow rate is an indirect measure of molecular weight, with high melt flow rate corresponding to low molecular weight. At the same time, melt flow rate is a measure of the ability of the material's melt to flow under pressure. Melt flow rate is inversely proportional to viscosity of the melt at the conditions of the test, though it should be borne in mind that the viscosity for any such material depends on the applied force. Ratios between two melt flow rate values for one material at different gravimetric weights are often used as a measure for the broadness of the molecular weight distribution.Melt flow rate is very commonly used for polyolefins, polyethylene being measured at 190 °C and polypropylene at 230 °C. The plastics engineer should choose a material with a melt index high enough that the molten polymer can be easily formed into the article intended, but low enough that the mechanical strength of the final article will be sufficient for its use.".
- Melt_flow_index thumbnail Melt_flow_index.jpg?width=300.
- Melt_flow_index wikiPageExternalLink melt-flow-index-deluxe.
- Melt_flow_index wikiPageID "2856006".
- Melt_flow_index wikiPageLength "7944".
- Melt_flow_index wikiPageOutDegree "16".
- Melt_flow_index wikiPageRevisionID "682609633".
- Melt_flow_index wikiPageWikiLink ASTM.
- Melt_flow_index wikiPageWikiLink ASTM_International.
- Melt_flow_index wikiPageWikiLink Air.
- Melt_flow_index wikiPageWikiLink Atmosphere_of_Earth.
- Melt_flow_index wikiPageWikiLink Category:Polymer_chemistry.
- Melt_flow_index wikiPageWikiLink Category:Polymer_physics.
- Melt_flow_index wikiPageWikiLink Category:Viscosity.
- Melt_flow_index wikiPageWikiLink Die_(manufacturing).
- Melt_flow_index wikiPageWikiLink Mass.
- Melt_flow_index wikiPageWikiLink Measurement.
- Melt_flow_index wikiPageWikiLink Polyethylene.
- Melt_flow_index wikiPageWikiLink Polymer.
- Melt_flow_index wikiPageWikiLink Polypropylene.
- Melt_flow_index wikiPageWikiLink Thermoplastic.
- Melt_flow_index wikiPageWikiLink File:MFI.gif.
- Melt_flow_index wikiPageWikiLink File:Melt_flow_index.jpg.
- Melt_flow_index wikiPageWikiLinkText "MFI".
- Melt_flow_index wikiPageWikiLinkText "Melt flow index".
- Melt_flow_index wikiPageWikiLinkText "Melt flow rate".
- Melt_flow_index wikiPageWikiLinkText "melt flow index".
- Melt_flow_index hasPhotoCollection Melt_flow_index.
- Melt_flow_index subject Category:Polymer_chemistry.
- Melt_flow_index subject Category:Polymer_physics.
- Melt_flow_index subject Category:Viscosity.
- Melt_flow_index hypernym Measure.
- Melt_flow_index type Article.
- Melt_flow_index type Work.
- Melt_flow_index type Article.
- Melt_flow_index type Mechanic.
- Melt_flow_index type Physic.
- Melt_flow_index type Quantity.
- Melt_flow_index comment "The melt flow index (MFI) is a measure of the ease of flow of the melt of a thermoplastic polymer. It is defined as the mass of polymer, in grams, flowing in ten minutes through a capillary of a specific diameter and length by a pressure applied via prescribed alternative gravimetric weights for alternative prescribed temperatures.".
- Melt_flow_index label "Melt flow index".
- Melt_flow_index sameAs Schmelzflussindex.
- Melt_flow_index sameAs شاخص_جریان_مذاب.
- Melt_flow_index sameAs Melt_flow_index.
- Melt_flow_index sameAs Melt_Flow_Index.
- Melt_flow_index sameAs Meltindex.
- Melt_flow_index sameAs Wskaźnik_szybkości_płynięcia.
- Melt_flow_index sameAs m.0874b2.
- Melt_flow_index sameAs Q1755092.
- Melt_flow_index sameAs Q1755092.
- Melt_flow_index sameAs 熔融指数.
- Melt_flow_index wasDerivedFrom Melt_flow_index?oldid=682609633.
- Melt_flow_index depiction Melt_flow_index.jpg.
- Melt_flow_index isPrimaryTopicOf Melt_flow_index.
