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The foam structure before solidification is an inherently unstable one, as the voids present greatly increase the surface free energy of the structure. [12] [20] In some synthetic biofoams, a surfactant can be used in order to lower the surface free energy of the foam and therefore stabilize the foam. In some natural biofoams, proteins can act ...
One of the first uses for NOPs (other than castor oil) was to make spray-on polyurethane foam insulation for buildings. [17] NOPs are also finding use in polyurethane slab foam used to make conventional mattresses [8] as well as memory foam mattresses. [18] [19] The characteristics of NOPs can be varied over a very wide range.
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.
Building impacts belong to two distinct but interrelated types of carbon emissions: operational and embodied carbon.Operational carbon includes emissions related to the building's functioning, such as lighting and heating; embodied carbon encompasses emissions resulting from the physical construction of buildings, including the processing of materials, material waste, transportation, assembly ...
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.
A bio-based material is a material intentionally made, either wholly or partially, from substances derived from living (or once-living) organisms, [1] such as plants, animals, enzymes, and microorganisms, including bacteria, fungi and yeast. [2] [3]
Ecovative was developed from a university project of founders Eben Bayer and Gavin McIntyre. In their Inventor's Studio course at Rensselaer Polytechnic Institute taught by Burt Swersey, Eben and Gavin developed and then patented a method of growing a mushroom-based insulation, initially called Greensulate before founding Ecovative Design in 2007.
Zotefoams Plc manufactures a range of closed cell crosslinked foams from polyolefins and engineering polymers for global use in sports, construction, marine, automation, medical equipment and aerospace. The headquarters are in Croydon, London, with additional foam manufacturing plants in Kentucky, USA and Brzeg, Poland.