Sodium Silicate Ceramic Fiber
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Because sodium silicate is sticky and dries hard it can be used as a glue to bind ceramic particles together even aggregates.
Sodium silicate ceramic fiber. In this video i attempt to make sodium silicate. Us3988161a us05 473 664 us47366474a us3988161a us 3988161 a us3988161 a us 3988161a us 47366474 a us47366474 a us 47366474a us 3988161 a us3988161 a us 3988161a authority us united states prior art keywords foamed sodium silicate ceramic heat aluminum hydroxide prior art date 1973 05 28 legal status the legal status is an assumption and is not a legal conclusion. Sodium silicate is the common name for a compound sodium metasilicate na2sio3 and is also referred to as liquid gl. On firing it forms a ceramic bond.
Mixtures of sodium silicate and perlite for example can be rammed into molds to form shapes that dry with zero shrinkage and have excellent insulating properties. Combined with the hardener sodium silicate is responsible for the transformation of the matrix from a ceramic slurry into an insoluble polymeric form.