Comprehensive Investigation of Stoichiometry-Structure-Performance Relationships in Flexible Polyurethane Foams.

ABSTRACT: Polyurethane (PU) foams are versatile materials with a broad application range. Their performance is driven by the stoichiometry of polymerization reaction, which has been investigated in several works. However, the analysis was often limited only to selected properties and compared samples differing in apparent density, significantly influencing their performance. In the bigger picture, there is still a lack of comprehensive studies dealing with the stoichiometry impact on PU foams' performance. Herein, flexible PU foams with a similar apparent density but differing in the isocyanate index (IIso) (from 0.80 to 1.20) were prepared. The stoichiometry-structure-performance relationships were investigated considering cellular and chemical structure, as well as the static and dynamic mechanica

SUBMITTER: Olszewski A 

PROVIDER: S-EPMC9501594 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature