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PVC foamboard is distinct from the extra-lightweight foamcore board, laminated of foam and card surfaces, used for indoor signage and modelling. Like PVC, closed-cell PVC foamboard is solid and has a very rigid structure. Where it differs is in its closed-cell foam structure, which makes it very light (as little as half the weight of solid PVC ...
PVC properties as a function of phthalate plasticizer level [24] Plasticizer content (% DINP by weight) Specific gravity (20 °C) Shore hardness (type A, 15 s) Flexural stiffness Tensile strength (Mpa) Elongation at break (%) Example applications Rigid: 0: 1.4: 900: 41 <15: Unplasticized PVC (UPVC): window frames and sills, doors, rigid pipe ...
Solid polymeric foam for packaging under the optical microscope. A polymeric foam is a special foam, in liquid or solidified form, formed from polymers. [1]Examples include:
It is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride (PVC). Vinyl chloride is a colourless flammable gas that has a sweet odor and is carcinogenic . Vinyl chloride monomer is among the top twenty largest petrochemicals ( petroleum -derived chemicals) in world production. [ 2 ]
Depending on the gas, the foam's density can be between 5% and 99% of the pre-processed plastic. [2] Design parameters, focused on the foam's final form and the molding process afterward, include the type of die or mold to be used, as well as the dimensions of the bubbles, or cells, that classify the material as a foam. [1]
Because the closed-cell foam backing of vinyl sheet can be varied, it can be given the resilience profile of sprung performance floor, suitable as a sports or dance floor. It can make a permanent or portable dance floor which can be laid on problematic surfaces such as concrete.