ポリエチレン is one of 32 materials in this atlas, grouped under polymers: history, structure, measured properties, process routes, uses, safety and market — not a product catalogue.
Scores compare ポリエチレン 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.
深く読む
ポリエチレン ((C2H4)n) is a family of grades whose density 0.91–0.97 g/cm³, heat band LDPE ~110 °C; HDPE ~130 °C, and fire letter combustible olefin.
ポリエチレン is sold as grades, not as a single substance. Chemistry (C2H4)n, density 0.91–0.97 g/cm³, heat band LDPE ~110 °C; HDPE ~130 °C.
This atlas treats ポリエチレン as a system: mill route, coatings, tests and the cavity it sits in.
Conductivity note: ~0.4 W/m·K. Insulation score 44/100 is relative to 32 entries — metals lose, VIPs and aerogels win.
Fire letter in editorial use: combustible olefin. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.
Origin: ICI 1933 / Ziegler–Natta 1950s, United Kingdom / Germany. The process chapter follows feedstock → conversion → forming → finish → install.
Uses span buildings to defence / safety. Pairings matter: ptfe.
Producers below are landmarks, not an endorsement ranking. Prices are bands, not live quotes.
Circularity mark 28/100. Ask which scrap, which certificate, which year.
United Kingdom · 1939
ICI Alketh is a reference point in the public image of ポリエチレン.
Global · 1960s–
HDPE bottle is a reference point in the public image of ポリエチレン.
Netherlands · 1979–
Dyneema is a reference point in the public image of ポリエチレン.
Europe · 1990s–
PE100 pipe is a reference point in the public image of ポリエチレン.
United States · 1940s–
Tupper box lore is a reference point in the public image of ポリエチレン.
Global · 1980s–
Geomembrane is a reference point in the public image of ポリエチレン.
United Kingdom · 1960s–
UHMW hip liner is a reference point in the public image of ポリエチレン.
Global · 1970s–
Stretch film is a reference point in the public image of ポリエチレン.
アイコンのオンオフで、棒が選択内の首位に合わせて再スケールされる。
同じ家族、違う点数 — 一戦を選ぶ。
六軸で最も近い隣人 — 強度、耐熱、火災、断熱、加工性、循環性。