R-NH-COO-R′ network + blowing agent
ChemistryMousse de polyuréthane is specified as R-NH-COO-R′ network + blowing agent. Density band 30–60 kg/m³ rigid boards.
What holds Mousse de polyuréthane together is not the nickname. Formula R-NH-COO-R′ network + blowing agent, density 30–60 kg/m³ rigid boards.
Meters are atlas-relative. Grades are the SKUs buyers write.
Phases
Microstructure
OrderProcessing sets grain, crystallinity or fibre orientation — the reason two lots of Mousse de polyuréthane can test differently.
Interfaces
SurfacesCoatings, oxide films, sizings or paper faces often decide weather and fire behaviour more than the bulk brochure.
Defects
FlawsInclusions, voids, knots, pinholes or residual stress start the failures that mill certificates do not list.
Grades
VariantsMousse de polyuréthane is a family. Grade names below are the ones buyers actually write on RFQs.
Ageing
TimeMoisture, UV, creep, hydrogen or carbonation shift properties in service. Design to the aged state.
Jauges relatives
Strength20
Strength is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Heat envelope36
Heat envelope is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Fire behaviour28
Fire behaviour is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Insulation88
Insulation is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Workability74
Workability is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Circularity32
Circularity is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Nuances
Flexible slabstock
Furniture, auto.Furniture, auto.
Rigid PUR
Appliances.Appliances.
PIR board
Buildings, better fire index.Buildings, better fire index.
Spray closed-cell
Roofs, rim joists.Roofs, rim joists.
Elastofoam
Integral skin.Integral skin.
Liaisons
Primary bonding
Mousse de polyuréthane holds together by ionic/covalent networks.
Secondary forces
Hydrogen bonds, van der Waals stacks or grain-boundary cohesion set toughness and moisture uptake.
Composites & fills
Fillers, fibres, plasticisers or aggregates are part of the real product, not impurities.
Environment film
Oxides, chars, sizings or paints are the layer the world actually meets.
Change the grade, the coating or the moisture and you have a different material with the same English name.
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Laine minérale
Roche ou verre fondus filés en panneaux A1 : l’isolant incombustible par défaut.
Global 69 📦Panneau sous vide
Sandwich à vide scellé : λ ~0,004–0,008 tant que l’enveloppe tient.
Global 44 🕯️Matériau à changement de phase
Paquets de chaleur latente qui aplatissent les oscillations. Complément, pas substitut de λ.
Global 36