聚乙烯 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 聚乙烯 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.
深入阅读
聚乙烯 ((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.
聚乙烯 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 聚乙烯 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 聚乙烯.
Global · 1960s–
HDPE bottle is a reference point in the public image of 聚乙烯.
Netherlands · 1979–
Dyneema is a reference point in the public image of 聚乙烯.
Europe · 1990s–
PE100 pipe is a reference point in the public image of 聚乙烯.
United States · 1940s–
Tupper box lore is a reference point in the public image of 聚乙烯.
Global · 1980s–
Geomembrane is a reference point in the public image of 聚乙烯.
United Kingdom · 1960s–
UHMW hip liner is a reference point in the public image of 聚乙烯.
Global · 1970s–
Stretch film is a reference point in the public image of 聚乙烯.
开关图标后，柱会按所选集合的领先者重新缩放。
同一家族、不同分数 — 选一场。
六轴上最近的邻居 — 强度、耐热、火灾、隔热、加工性、循环性。