enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Fluorinated ethylene propylene - Wikipedia

    en.wikipedia.org/wiki/Fluorinated_ethylene_propylene

    FEP; CAS Registry Number: 25067-11-2 Density [1] 2150 kg/m 3: Flexural modulus(E) 586 M Pa: Tensile strength(t) 23 M Pa: Elongation @ break 325% Folding endurance Varies Notch test Melting point: 260 °C Maximum operating temperature 204 °C Water absorption (ASTM) <0.01 % after 24 hours Dielectric constant (Dk) at 1M Hz: 2.1 Dissipation factor

  3. Polyester - Wikipedia

    en.wikipedia.org/wiki/Polyester

    When melting points of the monomers are sufficiently low, a polyester can be formed via direct esterification while removing the reaction water via vacuum. Direct bulk polyesterification at high temperatures (150 – 290 °C) is well-suited and used on the industrial scale for the production of aliphatic, unsaturated, and aromatic–aliphatic ...

  4. Polyethylene furan-2,5-dicarboxylate - Wikipedia

    en.wikipedia.org/wiki/Polyethylene_furan-2,5-di...

    [2] [3] As an aromatic polyester from ethylene glycol it is a chemical analogue of polyethylene terephthalate (PET) and polyethylene naphthalate (PEN). PEF has been described in (patent) literature since 1951, [ 4 ] but has gained renewed attention since the US department of energy proclaimed its building block, FDCA, as a potential bio-based ...

  5. Polycyclohexylenedimethylene terephthalate - Wikipedia

    en.wikipedia.org/wiki/Polycyclohexylenedim...

    Polycyclohexylenedimethylene terephthalate (PCT) is a thermoplastic polyester formed from the polycondensation of terephthalic acid and cyclohexanedimethanol. [1] Its chemical structure is similar to that of polyethylene terephthalate (PET), with which it shares properties like dimensional stability and chemical resistance.

  6. BoPET - Wikipedia

    en.wikipedia.org/wiki/BoPET

    BoPET (biaxially oriented polyethylene terephthalate) is a polyester film made from stretched polyethylene terephthalate (PET) and is used for its high tensile strength, [1] chemical stability, [1] dimensional stability, [2] transparency [1] reflectivity, and electrical insulation. [1]. When metallized, it has [3] gas and moisture barrier ...

  7. Thermoplastic - Wikipedia

    en.wikipedia.org/wiki/Thermoplastic

    Polybenzimidazole (PBI, short for Poly-[2,2’-(m-phenylen)-5,5’-bisbenzimidazole]) fiber is a synthetic fiber with a very high melting point. It has exceptional thermal and chemical stability and does not readily ignite.

  8. Polycaprolactone - Wikipedia

    en.wikipedia.org/wiki/Polycaprolactone

    Polycaprolactone (PCL) is a synthetic, semi-crystalline, biodegradable polyester with a melting point of about 60 °C and a glass transition temperature of about −60 °C. [ 2 ] [ 3 ] The most common use of polycaprolactone is in the production of speciality polyurethanes .

  9. Melting point - Wikipedia

    en.wikipedia.org/wiki/Melting_point

    The melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure and is usually specified at a standard pressure such as 1 atmosphere or 100 kPa.