天然ゴム 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 天然ゴム 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
天然ゴム ((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.
天然ゴム 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 天然ゴム 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 天然ゴム.
United Kingdom · 1888
John Boyd Dunlop is a reference point in the public image of 天然ゴム.
France · 1898
Michelin Bibendum is a reference point in the public image of 天然ゴム.
SE Asia · 20th c.
Hevea tapping is a reference point in the public image of 天然ゴム.
Brazil · 1928
Fordlandia is a reference point in the public image of 天然ゴム.
Global · 1950s–
F1 slick is a reference point in the public image of 天然ゴム.
Global · 19th c.–
Surgical glove is a reference point in the public image of 天然ゴム.
Europe · 18th c.–
Eraser is a reference point in the public image of 天然ゴム.
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。