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🧯测得物性

膨胀型涂料 · 遇火膨胀成隔热炭层的油漆——不用厚板也能给钢材R等级的薄层。

Numbers below are bands used by working engineers, not live quotes. Tensile note: a film, not a material you buy by MPa.

Fire performance in this atlas is editorial. Real projects need the assembly report.

力学

Strength band

a film, not a material you buy by MPa

Stiffness

Modulus follows chemistry and orientation — not the marketing nickname.

Toughness

Crack growth, not peak stress, retires most real parts.

Fatigue / creep

Cyclic and time-dependent damage dominate certificates issued on static coupons.

Hardness / hand

Indentation, drape or compressive class — whichever the trade actually measures.

热学

Conductivity

char foam becomes the insulator — 膨胀型涂料 is not a substitute for a dedicated λ layer.

Service temperature

Melting / softening / decomposition band: designed to foam ~200–300 °C.

Expansion

Joints and clearances must follow the expansion class of 膨胀型涂料, not of steel-by-habit.

Thermal mass

Density wet film as specified sets how fast a section changes temperature.

Ageing of λ

Foams, VIPs and moist batts drift; quote aged values.

电学

Conductor or dielectric

膨胀型涂料 is generally a dielectric or semiconductor film, not building wire.

Static / EMI

Fillers and moisture change resistivity more than brochures admit.

Standards language

IACS, volume resistivity or dielectric strength — pick the quantity the job uses.

火灾

Reaction to fire

Typical declared class: coating on A1 steel; system tested. This is not a universal passport.

Resistance vs reaction

Euroclass is reaction. EI/R ratings are assemblies — boards, coats, cavities.

Melt-drip / char

膨胀型涂料 tends to char or stay inorganic rather than melt-drip like commodity olefins.

Smoke / toxicity

CO, HCN, HF or fibres — the species depend on chemistry. Name the test (ISO 5659, EN 45545, NFPA 1971).

If a salesperson quotes a single “safety score”, ask which standard, which thickness, which year.

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耐火与阻燃中的其他材料