天然橡胶 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 天然橡胶 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
天然橡胶 ((C5H8)n cis-1,4) is a family of grades whose density ~0.92 g/cm³, heat band elastomer; decomposes on heat, and fire letter combustible; tyres are a fire load.
天然橡胶 is sold as grades, not as a single substance. Chemistry (C5H8)n cis-1,4, density ~0.92 g/cm³, heat band elastomer; decomposes on heat.
This atlas treats 天然橡胶 as a system: mill route, coatings, tests and the cavity it sits in.
Conductivity note: ~0.15 W/m·K. Insulation score 38/100 is relative to 32 entries — metals lose, VIPs and aerogels win.
Fire letter in editorial use: combustible; tyres are a fire load. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.
Origin: Mesoamerican use / Goodyear 1839 / Wickham 1876, Amazonia → Malaysia. The process chapter follows feedstock → conversion → forming → finish → install.
Uses span buildings to defence / safety. Pairings matter: silicone.
Producers below are landmarks, not an endorsement ranking. Prices are bands, not live quotes.
Circularity mark 46/100. Ask which scrap, which certificate, which year.
United States · 1839
Charles Goodyear is a reference point in the public image of 天然橡胶.
United Kingdom · 1888
John Boyd Dunlop is a reference point in the public image of 天然橡胶.
France · 1898
Michelin Bibendum is a reference point in the public image of 天然橡胶.
SE Asia · 20th c.
Hevea tapping is a reference point in the public image of 天然橡胶.
Brazil · 1928
Fordlandia is a reference point in the public image of 天然橡胶.
Global · 1950s–
F1 slick is a reference point in the public image of 天然橡胶.
Global · 19th c.–
Surgical glove is a reference point in the public image of 天然橡胶.
Europe · 18th c.–
Eraser is a reference point in the public image of 天然橡胶.
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。