Preparation and Characterization of Binder for Inorganic Composites Made from Amorphous Mineral Raw Material

Nilsen, Elin; Einarsrud, Mari‐Ann; Puputti, Janne; Lind’n, Mika; Bell, Jean Le; Perander, Mikael

doi:10.1007/s10971-005-1396-z

Cited by 7 publications

(7 citation statements)

References 10 publications

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“…The composition of the solid fiber is depicted in Table 1 and compared with the previous work, which has utilized the same mineral precursor. 11 As can be seen, the values are in good agreement with previous research. 10,11 Based on the composition of the material, a mean value for the molar mass of the mineral fiber can be calculated, giving 60.25 g/mol.…”

Section: Dissolution Experiments 311 Icp-ms Analysissupporting

confidence: 91%

“…11 As can be seen, the values are in good agreement with previous research. 10,11 Based on the composition of the material, a mean value for the molar mass of the mineral fiber can be calculated, giving 60.25 g/mol.…”

Section: Dissolution Experiments 311 Icp-ms Analysissupporting

confidence: 91%

“…No significant influence of ethanol on the dissolution kinetics was observed. In 2005, Nilsen et al published a paper 11 in which the composition of the mineral fiber was determined. The effect of the acid concentration on the dissolution kinetics and the gelation was studied.…”

Section: Introductionmentioning

confidence: 99%

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Dissolution of Mineral Fiber in a Formic Acid Solution: Kinetics, Modeling, and Gelation of the Resulting Sol

Grénman

Ramirez

Eränen

et al. 2008

Ind. Eng. Chem. Res.

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A new inorganic adhesive based on sol-gel technology has been developed recently. The sol is produced by dissolving a mineral material, with silica as the major compound, in formic acid. In this work, the kinetics and mechanisms of the solid-liquid reaction of the amorphous mineral raw material with formic acid were studied. The effect of different variables, such as temperature, acid concentration, and fiber load, were examined. Moreover, the influence of various parameters on the gelation rate of the resulting sol was investigated at different temperatures. The dissolution of the mineral fiber was found to be strongly dependent on the temperature and fiber load, but moderately dependent on the acid concentration as the pH of the solution was buffered by the formic acid. The kinetic model developed for the dissolution process accurately describes the experimental results and can thus be used for design and optimization of the process. The gelation studies showed that the temperature and the amount dissolved are the variables most affecting the gelation time. The knowledge of the gelation kinetics is important when striving for a high dry solid content in the sol, while still avoiding premature gelation in production, transport, and storage.

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Section: Dissolution Experiments 311 Icp-ms Analysissupporting

confidence: 91%

Section: Dissolution Experiments 311 Icp-ms Analysissupporting

confidence: 91%

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Dissolution of Mineral Fiber in a Formic Acid Solution: Kinetics, Modeling, and Gelation of the Resulting Sol

Grénman

Ramirez

Eränen

et al. 2008

Ind. Eng. Chem. Res.

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“…In order to improve the performance of water glass binder, many research works have been published in recent years. The two-component binder system, which is the combination of micro silica powder and water glass, was studied [8,9] , and the positive effect of micro silica powder on strengths of sand core was found. Sun et al [10] studied the effect of a surface active agent on properties of sand core bonded with water glass, and sodium dodecyl and polyacrylamide were introduced as modifiers to improve the collapsibility of the sand core.…”

Section: Modification Of Inorganic Binder Used For Sand Core-making Imentioning

confidence: 99%

Modification of inorganic binder used for sand core-making in foundry practice

et al. 2020

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I n the process of casting, it is inevitable that t h e t r a d i t i o n a l o rg a n i c b i n d e r w i l l p o l l u t e the environment [1]. With the increasingly strict requirements of environmental protection, the inorganic binder has attracted more attention [2, 3]. Water glass binder, a kind of inorganic binder, which is usually used in aluminum alloy casting, has some advantages in environmental protection because of its non-toxic nature and low gas evolution in casting [3, 4]. However, due to the low bond strength, the amount of unmodified water glass accounts for as much as 6.0%-8.0% of the weight of molding sand [5]. At the same time, the molding sand using unmodified water glass has poor collapsibility [6, 7]. These disadvantages limit the

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“…Silicophosphate-based materials are widely used in medicine, as they are analogues of the mineral component of a biological bone tissue, according to their chemical and phase composition. They are considered to be the most promising for replacing bone defects [1][2][3][4][5]. Increasing life expectancy which should become a feature of the new millennium requires solving a number of medical and material science problems, in particular, development of materials for artificial organs and tissues.…”

Section: Introductionmentioning

confidence: 99%

Study of Biological Properties of Thin-Film Materials on the Basis of the SIO2–P2O5–СaO System

Borilo

Lyutova

Spivakova

2016

KEM

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Thin films were obtained from film-forming solutions by the sol-gel method on the basis of the SiO2-P2O5-СаO system. Thin films were produced on the single-crystal silicon substrates (model substrate) by extraction at a velocity of 5 mm/s following by heat treatment at a temperature of 60°С for 20 minutes and at a temperature of 600°С for 1 hour. During the experiment it was established that film-forming solutions are usable only for 2 to 7 days from the moment of preparation. Using thermal and infra-red – spectroscopic analysis main stages of oxide system formation were retraced. According to data from x-ray phase analysis phases CaClH2PO4∙H2O, Ca(H2PO4)2∙H2O, CaHPO4∙2H2O, Ca2SiO4∙H2O, Ca5(PO4)3Cl. On the supporter’s surface a homogeneous film coating with quite equally spaced crystal-like formations with the diameter of 10-11 microns at the distance of 1-30 microns was formed. Phase composition, surface properties and biological activity of the synthesized materials were investigated. XRD results indicated that after being immersed into the SBF, hydroxylapatite, wollastonite, and chlorapatite were formed on the samples’ surfaces, which was important for practical applications

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Preparation and Characterization of Binder for Inorganic Composites Made from Amorphous Mineral Raw Material

Cited by 7 publications

References 10 publications

Dissolution of Mineral Fiber in a Formic Acid Solution: Kinetics, Modeling, and Gelation of the Resulting Sol

Dissolution of Mineral Fiber in a Formic Acid Solution: Kinetics, Modeling, and Gelation of the Resulting Sol

Modification of inorganic binder used for sand core-making in foundry practice

Study of Biological Properties of Thin-Film Materials on the Basis of the SIO<sub>2</sub>–P<sub>2</sub>O<sub>5</sub>–СaO System

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