1994
DOI: 10.1007/bf00486298
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Silica fibers obtained from aminosilicate solutions with a reversible spinnability

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Cited by 5 publications
(9 citation statements)
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“…and sodium silicates give quite reasonable, albeit somewhat understated, values of the mass-average basicity of the SOA. Thus, for the solutions with silica concentrations 10-20 % by weight and silicate modules 2-3, x values lying in the ranges 0.1-0.3 (aminosilicates) and 0.3-0.5 (sodium silicates) are found, which is in a satisfactory agreement with the majority of experimental data obtained by the methods of molybdate spectrophotometric analysis and NMR on Si-29 nuclei [1,4].…”
Section: Adequacy Of the Modelsupporting
confidence: 84%
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“…and sodium silicates give quite reasonable, albeit somewhat understated, values of the mass-average basicity of the SOA. Thus, for the solutions with silica concentrations 10-20 % by weight and silicate modules 2-3, x values lying in the ranges 0.1-0.3 (aminosilicates) and 0.3-0.5 (sodium silicates) are found, which is in a satisfactory agreement with the majority of experimental data obtained by the methods of molybdate spectrophotometric analysis and NMR on Si-29 nuclei [1,4].…”
Section: Adequacy Of the Modelsupporting
confidence: 84%
“…For the first time, the effect of a rheological anomaly in solutions of AS was reported in 1994 [1], and it was immediately noted and in subsequent works confirmed that thickening of solutions with heating is accompanied by an increase in the average degree of the SOA polymerization [2,3]. A similar effect was observed in other silicate systems, namely in aqueous solutions of lithium silicates [4] and sodiumtetramminezinc silicate [5]), as well as in several non-silicate organic systems.…”
Section: Literature Review and Problem Statementmentioning
confidence: 99%
“…It has been also applied for the silicate synthesis using stable aqueous solutions of amine silicates [1][2][3]. The main disadvantage of the last technique, is the impossibility of the synthesis in acid and neutral media, because of the polycondensation of the silicate anions.…”
Section: Introductionmentioning
confidence: 99%
“…A very important structural-sensitive property of solutions of some WSS is the rheological anomaly, expressed in the reversible increase in viscosity when heated, up to gelation. This effect was found in the solutions of most AS silicates [3], as well as in solutions of lithium silicates [1], and in sodium-zinc-ammonia liquid glass (ZAWG) [4]. It was found that, at least in AS solutions, the anomaly is accompanied by a noticeable increase in polycondensation of SOA at heating.…”
Section: Introductionmentioning
confidence: 97%