When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Polyurethane foam - Wikipedia

    en.wikipedia.org/wiki/Polyurethane_foam

    An assortment of polyurethane foam products for cushioning and insulation. Polyurethane foam is a solid polymeric foam based on polyurethane chemistry. As a specialist synthetic material with highly diverse applications, polyurethane foams are primarily used for thermal insulation and as a cushioning material in mattresses, upholstered furniture or as seating in vehicles.

  3. Polymeric foam - Wikipedia

    en.wikipedia.org/wiki/Polymeric_foam

    Nitrile rubber (NBR) foam, the copolymers of acrylonitrile (ACN) and butadiene; Polychloroprene foam or Neoprene; Polyimide foam; Polypropylene (PP) foam, including expanded polypropylene (EPP) and polypropylene paper (PPP) Polystyrene#Foams (PS) foam Expanded polystyrene (EPS) Extruded polystyrene foam (XPS), sometimes sold under brand name ...

  4. Polyurethane - Wikipedia

    en.wikipedia.org/wiki/Polyurethane

    Polyurethane synthesis, wherein the urethane groups −NH−(C=O)−O− link the molecular units A kitchen sponge made of polyurethane foam . Polyurethane (/ ˌ p ɒ l i ˈ jʊər ə ˌ θ eɪ n,-j ʊəˈr ɛ θ eɪ n /; [1] often abbreviated PUR and PU) refers to a class of polymers composed of organic units joined by carbamate (urethane) links.

  5. Urea-formaldehyde - Wikipedia

    en.wikipedia.org/wiki/Urea-formaldehyde

    Urea-formaldehyde foam insulation (UFFI) commercialisation dates to the 1930s as a synthetic insulation with thermal conductivity of 0.0343 to 0.0373 W/m⋅K, [13] equating to U values for 50 mm thickness of between 0.686 W/m 2 K and 0.746 W/m 2 K or R-values between 1.46 m 2 K/W and 1.34 m 2 K/W (0.26 °F⋅ft 2 ⋅h/BTU and 0.24 °F⋅ft 2 ...

  6. Polyurethane laminate - Wikipedia

    en.wikipedia.org/wiki/Polyurethane_laminate

    PUL diaper covers. Polyurethane laminate (PUL, thermal stretch, [1] fuzzy rubber [1]) is a compound fabric made by laminating a cloth fabric to one or both sides of a thin film of polyurethane.

  7. Foam - Wikipedia

    en.wikipedia.org/wiki/Foam

    The reason given is: lead fails to summarise, instead presenting novel content (dispersed media, quantum foam, and allusions to foam as polydisperse, colloidal, and as suds, beer head, bath sponges, etc., all only in lead). Please help improve the lead and read the lead layout guide. (August 2024) (Learn how and when to remove this message)

  8. Styrofoam - Wikipedia

    en.wikipedia.org/wiki/Styrofoam

    Styrofoam insulation extruded polystyrene foam (XPS), owned and manufactured by DuPont. Styrofoam is a genericized trademarked brand of closed-cell extruded polystyrene foam (XPS), manufactured to provide continuous building insulation board used in walls, roofs, and foundations as thermal insulation and as a water barrier.

  9. Acoustic foam - Wikipedia

    en.wikipedia.org/wiki/Acoustic_foam

    A close-up image of acoustic foam. Acoustic foam is an open celled foam used for acoustic treatment. It attenuates airborne sound waves, reducing their amplitude, for the purposes of noise reduction or noise control. [1] The energy is dissipated as heat. [2] Acoustic foam can be made in several different colors, sizes and thickness. [3]