The effect of no-dust-blends and powder additives on polypropylene properties

Attempts have been made to improve the mechanical along with other properties of Polypropylene by using additives in the form of No-dust blends (NDB). Two different methods were used to convert the additives into NDB form. The results of melt flow rate tests (MFR) showed that by using additives in the NDB form instead of powder form, the value of MFR decreases significantly. Moreover, the increase rate of MFR by prolonging the processing times decreases when using additives in NDB form. These results suggested the higher performance of NDB form which was confirmed by mechanical properties. The results of yellow index test (YI) also showed a high difference between the samples prepared from the additives in the powder form and NDB form