materials library / classes / synthetic fibre and polymer
NEURODESIGN® · MATERIAL CLASS · SYNTHETIC FIBRE AND POLYMER
Polyester and recycled PET
Polyester fibre, increasingly from recycled bottle stock, used both as textile and as needle-punched acoustic board.
Decisive attributes
The attributes that most determine how this class behaves and how it is experienced. No values are shown, because a value belongs to a product and not to a class. Two products of the same material can differ from each other by more than the material differs from its neighbours.
Typical application
Acoustic panels. Ceiling baffles. Carpet. Upholstery.
Worth watching
Recycled PET acoustic felt is frequently specified for its recycled content and then relied on acoustically without anyone checking the mounting condition its absorption figures were measured under.
Evidence
No record in the research corpus tests human response to this material class. Its physical behaviour may be well understood and its properties may be entirely predictable from the attributes above. That is a different thing from evidence that a person responds to it, and this library does not convert one into the other. The absence is shown rather than filled.
Outcomes it could bear on
Outcomes whose material levers overlap this class. This is a structural relationship in the ontology, not a finding: it says the property is relevant to the outcome, not that this material produces it.
- Recovery in care settingsvia Absorption coefficient by octave band, TVOC emission rate
- Acoustic privacyvia Absorption coefficient by octave band
- Respiratory comfortvia TVOC emission rate
- Sleep onset and continuityvia Absorption coefficient by octave band
- Speech intelligibilityvia Absorption coefficient by octave band
- Sustained attentionvia TVOC emission rate