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  2. Polyisocyanurate - Wikipedia

    en.wikipedia.org/wiki/Polyisocyanurate

    The generalised chemical structure of polyisocyanurate showing the isocyanurate group. The polyols are abbreviated as R-groups.. Polyisocyanurate (/ ˌ p ɒ l ɪ ˌ aɪ s oʊ s aɪ ˈ æ nj ʊər eɪ t /), also referred to as PIR, polyol, or ISO, is a thermoset plastic [1] typically produced as a foam and used as rigid thermal insulation.

  3. Rigid panel - Wikipedia

    en.wikipedia.org/wiki/Rigid_panel

    A multi-family residential building under construction with rigid panel exterior insulating sheathing. Rigid panel insulation, also referred to as continuous insulation, [1] can be made from foam plastics such as polyurethane (PUR), polyisocyanurate (PIR), and polystyrene, or from fibrous materials such as fiberglass, rock and slag wool.

  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. From plastic cutting boards to nonstick pans, these 5 kitchen ...

    www.aol.com/lifestyle/nonstick-pans-plastic...

    Plastic cutting boards Research published last year in the journal Environmental Science & Technology found that using a plastic cutting board can create up to 7,680 flecks of plastic , which can ...

  6. Homasote - Wikipedia

    en.wikipedia.org/wiki/Homasote

    Cork, plywood, hardboard, drywall, and foam insulation are common alternatives to Homasote. Homasote is used for blocking knit or crochet pieces. "Homosote (sic) is sturdy, and incredibly absorbent. It will wick water away from your garment so it dries more quickly. And it's like a bulletin board—you can stick pins in it easily." [10]

  7. Non-stick surface - Wikipedia

    en.wikipedia.org/wiki/Non-stick_surface

    Not all non-stick pans use Teflon; other non-stick coatings have become available. For example, a mixture of titanium and ceramic can be sandblasted onto the pan surface, and then fired at 2,000 °C (3,630 °F) to produce a non-stick ceramic coating. [19] Ceramic nonstick pans use a finish of silica (silicon dioxide) to prevent sticking.