Кератин с извитостью, держащий неподвижный воздух.
Также называют: руно · keratin fibre · worsted / woollen
Rob · CC BY 2.0
Коротко о главном
KeratinPolymer
~15–18%Regain
Insulation engineCrimp
Self-extinguishing tendency vs. PEFire
MerinoIcon
textilesFamily
Шерсть is one of 32 materials in this atlas, grouped under textiles: history, structure, measured properties, process routes, uses, safety and market — not a product catalogue.
Scores compare Шерсть with the rest of the atlas on strength, heat, fire behaviour, insulation, workability and circularity. They are editorial, not certificates.
Seven chapters follow. Fire and insulation claims name test families (Euroclass, ASTM E84, ISO 5660, KS F) rather than inventing a single safety number.
Глубокое введение
Deep dive: Шерсть
Шерсть (keratin protein) is a family of grades whose density ~1.31 g/cm³, heat band chars; does not melt-drip like PE, and fire letter better than commodity synthetics in many apparel tests.
What “the material” actually is
Шерсть is sold as grades, not as a single substance. Chemistry keratin protein, density ~1.31 g/cm³, heat band chars; does not melt-drip like PE.
This atlas treats Шерсть as a system: mill route, coatings, tests and the cavity it sits in.
Heat, fire and insulation
Conductivity note: low when lofted. Insulation score 72/100 is relative to 32 entries — metals lose, VIPs and aerogels win.
Fire letter in editorial use: better than commodity synthetics in many apparel tests. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.
How it is made and used
Origin: Neolithic sheep; merino Spain; industrial Yorkshire, Near East → Spain → Australia. The process chapter follows feedstock → conversion → forming → finish → install.
Uses span buildings to defence / safety. Pairings matter: cotton.
Market and circularity
Producers below are landmarks, not an endorsement ranking. Prices are bands, not live quotes.
Circularity mark 58/100. Ask which scrap, which certificate, which year.
Смежный атлас
Around Шерсть
Related atlas entries, a short glossary, and three threads that keep Шерсть honest.
См. также
🌱ХлопокCellulose comfort without keratin’s odour story.
🎽ПолиэстерThe fleece that copied wool’s loft with plastic.
🦋ШёлкThe other protein filament, smoother and weaker in sun.
🪨Минеральная ватаThe namesake inorganic insulator — not a textile cousin.
Ключевые термины
Euroclass
EN 13501-1 reaction-to-fire letter (A1–F), not a wall rating.
λ (lambda)
Thermal conductivity in W/m·K. Lower means better bulk insulation.
Aged value
Declared performance after blowing-agent or moisture drift.
HAZ / process window
The zone where heat or chemistry changes the datasheet.
Grade
A named chemistry/process variant, not a brand slogan.