Evaluation of the melt flow properties of thermoplastic resins (MFR, MVR)
Melt Mass Flow Rate (MFR) and Melt Volume Rate (MVR) are both numerical values that represent the flowability of thermoplastic resins during melting. The amount of resin extruded from a die with a specified diameter, located at the bottom of a cylinder, is measured under constant temperature and load conditions over a period of 10 minutes. The values are expressed in units of g/10min (MFR) and cm3/10min (MVR), respectively. There are two testing methods: Method A, which involves manually cutting the extrudate, and Method B, which automatically measures time (or distance). Method A is applicable to materials with an MFR of 0.1 to 25 (g/10min), while Method B is applicable to materials with an MFR of 0.1 to 50 (g/10min). Additionally, MI (Melt Index) is synonymous with MFR and was used in the polyolefin industry.
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【Features】 ○ Measurement of MFR and MVR, which represent the flowability of thermoplastic resin during melting. ○ Measurement of the amount of resin melted in the cylinder that is extruded from the die. ○ Method A for manually cutting the extrudate, and Method B for automatically measuring time (or distance). ○ Method A is applicable to materials with an MFR of 0.1 to 25 (g/10min). ○ Method B is applicable to materials with an MFR of 0.1 to 50 (g/10min). ● For other functions and details, please contact us.
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At DJK, we respond to all customer needs swiftly and accurately under confidentiality. DJK engages in the following activities related to polymer materials and composite materials: 1. Synthesis, polymerization, and modification reactions 2. Compounding, molding, and sample processing 3. Material testing, physical property measurement, and analysis services 4. Technical consulting 5. Defective product failure analysis testing 6. Application and testing outsourcing for overseas standards (FDA/EPA, DMF, biodegradability certification, and others)
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