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Polysilicic

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Pol`y`si`lic´ic
a.1.(Chem.) Of or pertaining to compounds formed by the condensation of two or more molecules of silicic acid.
Polysilicic acid
(Chem.) any one of a series of acids formed by the condensation of two or more molecules of silicic acid, with elimination of water.


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The curing of zinc silicate involves moisture from the atmosphere and is initiated by a reaction between polysilicic acid and metallic zinc, in which the major part of the metallic zinc, which has not reacted, is surrounded by an insoluble matrix of zinc silicate.
Since aqueous sodium metasilicate solutions normally contain water, which is not compatible with thermoplastic polyurethane (TPU), a modified approach is adopted to extract polysilicic acid derived from aqueous metasilicate solution.
 
 
 
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