To reduce the melt flow index of HDPE granules, you can increase the molecular weight of the polymer by using a higher molecular weight grade of HDPE, incorporating chain extenders or cross-linking agents, or blending with a lower molecular weight polymer. These methods can help decrease the flowability of the material, resulting in a lower melt flow index.
The Melt Flow Index (MFI) and Melt Volume Index (MVI) are both measures of a polymer's flow characteristics, but they differ in their testing conditions. MFI measures the mass of polymer that flows through a specific die over a set time under a defined load, while MVI measures the volume of polymer that flows under similar conditions. Generally, MVI can provide a more comprehensive understanding of a polymer's flow behavior at different shear rates. In practice, a higher MFI indicates a lower viscosity, while a higher MVI points to a greater flowability under the specified conditions.
Oobleck acts the way it does mostly because of water movement. When it is surrounded by water, that surface tension helps its granules flow freely due to extra lubrication. However, if there water movement stops all of a sudden, it creates a lot more friction between its granules.
A low flow fixture is a plumbing fixture, such as a showerhead or faucet, that is designed to reduce water consumption by restricting the flow rate of water. This helps to conserve water and reduce water usage without sacrificing performance.
Melting is an exothermic process; we need heat for melting.
Treated rubber is made to not melt and flow when hot or be brittle when too cold.
Glidants such as silicon dioxide help reduce the friction between particles and hence increase the flow of the tablet granules or powder.
MFI is 1.5 regards r.tayeb
it will increase the MFI
if the carr's index for any type of powder is 10% than the flow property of the powder will be excellent.
glidents are the excipient those can improove the flow property of our granules during compression.
Powder consists of fine particles that are smaller in size compared to granules, which are larger particles. Granules have a more uniform shape and size, while powder can range from very fine to coarse. Powders tend to flow more easily due to their smaller particle size, while granules provide better texture and dispersibility.
Springs and glacial melt.
melt flow patteren.
Aerators to reduce the flow.
The ease with which a thermoplastic polymer melt flows is gauged by the Melt Flow Index Tester (MFI). It is defined as the amount of polymer, measured in grammes, that flows in ten minutes through a capillary with a particular diameter and length under pressure from different gravimetric weights at different temperatures. The value of MFI is typically correlated by polymer processors with the grade of polymer that they must select for various processes, and most frequently, this value is not accompanied by the units because it is assumed to be g/10min.
The index finger has the most blood flow among all the fingers.
Viscosity is resistance to flow of oil Viscosity Index is a scale to measure viscosity