Polyamide 12 (PA12)

Nombres alternativos y comerciales
Rilsamid®, Vestamid®, Grilamid®
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Description

Its key features include:


  • Minimal water absorption: molded parts show almost no dimensional changes with variation in atmospheric humidity
  • Extraordinarily high impact resistance and Charpy notched impact strength, even well below freezing point
  • Good to excellent resistance to greases, oils, fuels, hydraulic fluids, and many solvents as well as to salt solutions and other chemicals
  • Excellent resistance to stress cracking, even for metal parts encapsulated by injection molding or embedded into the plastic
  • Excellent abrasion resistance
  • Low dry sliding friction coefficient as compared with steel, polybutylene terephthalate, polyacetal, and other materials
  • Noise and vibration damping properties
  • Excellent resistance to fatigue caused by frequent load change
  • Easy processability
  • Los datos sobre este material han sido proporcionados por M-Base.

    A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
    Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

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    Propiedades

    General

    PropertyValue

    Densidad

    1.01 - 1.03 g/cm³

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    Mecánica

    PropertyValueComment

    Elongación

    200.0 - 400.0 %

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    Módulo elástico

    0.9 - 1.2 GPa

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    Resistencia a la tracción

    35.0 - 45.0 MPa

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    at 10-15% strain

    Resistencia al choque, ensayo Charpy entallado

    10.0 - 20.0 kJ/m²

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    Resistencia al choque, ensayo Charpy no entallado

    no break

    Aplicaciones térmicas

    PropertyValue

    Calor específico

    1260 J/(kg·K)

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    Coeficiente de dilatación térmica

    0.0001 - 0.00018 1/K

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    Conductividad térmica

    0.2 - 0.23 W/(m·K)

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    Temperatura de fusión

    175.0 - 180.0 °C

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    Inflamabilidad

    UL 94 HB

    Eléctrico

    PropertyValue

    Constante dieléctrica

    3.1 [-]

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    4.7 [-]

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    Resistividad eléctrica

    1000000000.0 - 3000000000000.0 Ω·m

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    Óptico

    PropertyValue

    Transparencia

    no

    Technological properties

    Property
    Application areas

    Air ducts, cable sheathing, heel shells of ski boots

    Other

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    Processing methods

    Injection molding, extrusion, laser sintering, coating