Stabaxol^® in bio-based polyesters

In recent years, more and more bio-based polymers entered into the 3rd generation of bioplastics targeting durable applications e. g. automotive interiors, electronic products or the fiber industry, and PLA (Polylactic acid) is currently the most common bio-based material. However, PLA still faces the deficiencies of low melt stability and limited hydrolysis resistance, the latter causing failure in long-term durability tests. Studies using LANXESS Stabaxol^® hydrolysis stabilizers have shown that both insufficient melt and hydrolysis stability can be improved. The newly-designed Stabaxol^® P 110 improves the hydrolytic stability up to several times even using lower dosage rates and increases the molecular mass within a well-defined range while the polydispersity of PLA does not broaden. The higher molecular mass leads to decreased melt volume rate (20 - 30 % compared to an 1 x extruded, non-stabilized grade) allowing for consistent and easier processing.