Abstract
The Effect of Ageing on Selected Properties of Polylactide Modified with Blowing Agents
Highlights
The range of changes is plotted versus the blowing agent type and its active substance content expressed in percentage by mass
The curve illustrating the changes in the PLA modified with Expancel 951 MB 120 is definitely smoother, and the difference between individual blowing agent contents becomes smaller and smaller, and between 1.5% and 3% by mass contents the difference is only 20 MPa
The smoothest curve was obtained for the PLA modified with Hydrocerol 530. This may be related to the exothermic character related to the decomposition of this blowing agent
Summary
The purpose of this study was to investigate the effect of the thermal aging on the selected thermal and mechanical properties of polylactide in a cellular extrusion process
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