Measurement method of polypropylene powder melt index

The invention discloses a measurement method of polypropylene powder melt index, comprising the following steps of: dissolving an additive and polypropylene powder in a solvent according to the proportion so as to form a mixture A; stirring the mixture A to evaporate the solvent, so as to form a mixture B; drying the mixture B, so as to form a sample to be measured; and measuring the sample by using a melt index instrument. The technical scheme of the invention fully plays the anti-oxidant role, so as to prevent the polypropylene powder from being oxidized, the operation of the mixing process is convenient and during the measurement process using the melt index instrument, the data reproducibility and data parallelism are relatively good.