Effects Of Biodegradable Additives On The Nucleation Intensity And Growth Rate Of Isotactic Polypropylene Spherulites

01.May.2018

​The effect of biodegradable additive (Biosphere) on the spherulite growth rates of isotactic polypropylene was studied by means of polarized light microscopy. It has been found that the addition of a biodegradable additive to isotactic polypropylene matrix increases the intensity of the spherulites at all covered isothermal crystallization temperature in the range from 125 to 145 oC. In comparison with the neat isotactic polypropylene spherulites, much smaller spherulites were obtained at all crystallization temperatures for the isotactic polypropylene/biodegradable composite. The obtained results show that the presence of the biodegradable additives enhances spherulite growth rate at low crystallization temperatures (below 135 oC) while the effect of these additives is almost negligible at high crystallization temperature (above 135 oC).

https://www.researchgate.net/publication/341792508_Effects_Of_Biodegradable_Additives_On_The_Nucleation_Intensity_And_Growth_Rate_Of_Isotactic_Polypropylene_Spherulites​