01 Feedstock
Ore, monomer, fibre, mineral or scrap that can legally become 폴리우레탄폼.
Making 폴리우레탄폼 is a chain: feedstock, conversion (Otto Bayer 1937; fridge foam 1950s), forming, heat, finish, install.
Skip a step and the properties chapter is describing a different object.
공정 단계
02 Conversion
Otto Bayer 1937; fridge foam 1950s
03 Forming
Cast, spin, weave, sinter, foam, laminate or coat — the step that sets anisotropy.
04 Heat / cure
Temper, vulcanise, calcine or dry: skip it and the datasheet is fiction.
05 Finish
Coatings, sizings, facers, galvanizing, anodising, painting.
06 Install
Fasteners, adhesives, DFT, compression, dryness — site quality is a material property.
경로
Primary
Virgin route around Germany.
Recycled / secondary
Recycling exists but quality or energy often disappoints.
Specialty
High-spec grades leave the commodity mill.
Site-applied
Coatings, sprays, casts — the factory is sometimes a jobsite.
도해
폴리우레탄폼 process path
Feedstock to installed product.
- Feed — in
- Convert — mill
- Form — shape
- Finish — coat
- Install — out
- Spec — code
- Scrap loop — rec
폴리우레탄폼 heat & fire
Energy in, class out.
- Heat — in
- Polyurethane — mat
- λ / char — out
- Ignition — fire
- Euroclass — class
- Assembly — sys
한계
Envelope
Melting/softening pyrolyses; does not melt cleanly; conductivity λ ~0.022–0.028 W/m·K (aged PIR boards, bands).
Environment
Moisture, UV, chlorides, alkalis or oxygen — pick the one that actually kills 폴리우레탄폼.
Code
Fire class typically E–B with facers; not A1 is a starting letter, not a wall rating.
Process energy and scrap quality belong in the carbon passport, not in a footnote.