Much of the foam used in chairs, couches, Comfy Sacks and mattresses is polyurethane foam. This type of foam is made by mixing polyols, diisocyanates, catalysts, blowing agents and other additives and allowing the resulting foam to rise freely. This can be done in a batch process where relatively small blocks of foam are made in an open-topped mold, or continuously where the components are poured onto an inclined moving belt. The foam is then cut to the desired shape and size for use in making furniture. Safety concerns about the flammability of polyurethane foam, particularly in upholstered furniture, sometimes requires the addition of flame retardants to this foam.
Polyurethane is in other countries like The Netherlands used for flooring in houses, offices and musea.[26] Polyurethane is used on the bottom of some mouse pads.
Link to this Article click here.
No comments:
Post a Comment