Reaction mechanisms of magnesium potassium phosphate cement and its application

Qiao, Fang

doi:10.14711/thesis-b1116248

Cited by 10 publications

(12 citation statements)

References 63 publications

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“…The results revealed that Area 1 was rich in B, O, Mg, P, and K with corresponding atom percentages of 21.38%, 50.92%, 11.06%, 6.21%, and 10.34%, respectively, wherein the ratio of atoms between K and Mg was close to 1:1, which was the theoretical ratio of K-struvite. Thus, the poor MPC water resistance and the decreased strength after water immersion was due to a large amount of gap in the sample interior resulting from the massive dissolution of MgO and K-struvite in the MPC hydrate of water immersion curing, which was in accordance with previous findings [3].…”

Section: Resultssupporting

confidence: 91%

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Properties and Reaction Mechanisms of Magnesium Phosphate Cement Mixed with Ferroaluminate Cement

et al. 2019

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A certain amount of ferroaluminate cement (FAC) was substituted for MgO during the magnesium phosphate cement (MPC) preparation to obtain the MPC–FAC composite cement. The influence of FAC on the strength, water resistance, pH, and setting time of MPC–FAC composite cement were examined. The microstructure and chemical composition were also analyzed by adopting scanning electron microscopic energy-dispersive spectrometer and X-ray diffraction, respectively. The study showed that setting time of MPC–FAC composite cement was dramatically prolonged when FAC substitution for MgO was between 30 and 40 wt %. The strength of MPC–FAC did not decrease during the early curing time (1 h and 1 d), whereas it increased during the late curing time (3, 7, and 28 days). Moreover, the existence of FAC decreased the hydrated product K-struvite during the early curing time and thus dramatically enhanced the water-resistance of MPC–FAC. With the addition of FAC, a large number of cementitious materials of AFt and AFm, as well as flocculent colloidal substances of AH3, C–S–H, and FH3, were generated during the hydration of MPC, which were filled in the internal pore of the hydrate. Thus, the internal compactness of the sample increased, while the compact protective covering layer was generated on the surface to enhance the water resistance and strength in the late curing time.

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Section: Resultssupporting

confidence: 91%

“…Magnesium phosphate cement (MPC) is a water-hardening inorganic cementitious material [1,2,3]. Compared with the conventional Portland cement, MPC has different chemical reaction, product, and performance.…”

Section: Introductionmentioning

confidence: 99%

Properties and Reaction Mechanisms of Magnesium Phosphate Cement Mixed with Ferroaluminate Cement

et al. 2019

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“…In recent years, Wagh and co-workers have studied the chemical reactions between phosphoric acid or acidic phosphates and various oxides that produce CBPCs; they used solution chemistry and thermodynamics to elucidate the synthesis of CBPCs and produced magnesium phosphate cements, 14 aluminum phosphate cement, 15 and iron phosphate cement. 16 Among phosphate cements, magnesium phosphate cements (MPCs) have attracted the most attention and have been the focus of research, especially for their performance, [17][18][19][20] formation mechanisms, 21,22 and applications. However, to formulate MPCs, the magnesium oxide needs normally to be dead-burned at a temperature of 1300°C-1700°C to increase the setting time.…”

mentioning

confidence: 99%

Preparation and characterization of ferrous oxalate cement—A novel acid‐base cement

Luo

He³

et al. 2020

J. Am. Ceram. Soc.

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Acid-base (AB) cements represent one kind of fast-setting cementitious materials that are formed through the reaction of an acidic liquid component and a basic metal oxide powder at room temperature, which yield a cementitious salt hydrogel and produce a noncoherent precipitate. Coherent bonds can develop between precipitating particles, which will grow into crystalline structures and form a ceramic-like matrix. 1 AB cements have been known for nearly two centuries, and different types of AB cements have been developed, including polyelectrolyte cements (eg, zinc polycarboxylate cement 2), oxysalt cements (eg, magnesium oxychloride cement 3), and phosphate cements (eg, calcium phosphate cement 4). Due to their special performance such as rapid setting, high early strength and low drying shrinkage, they have been widely

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“…Magnesium ions slowed down the brushite setting reaction and also formed newberite (MgHPO4•3H2O) as a second setting product. In other studies [117] it is observed that excessive magnesium oxide residues lead to high pH and poor biocompatibility. Goldberg et al [118] studied the influence of [Ca+Mg]/P ratio on mechanical properties of calcium magnesium phosphates cements.…”

Section: Resorbability Of Phosphate-based Biomaterials With Different Ca/mg Ratiosmentioning

confidence: 88%

Resorbable Mg<sup>2+</sup>-Containing Phosphates for Bone Tissue Repair

Kazakova

Сафронова

Golubchikov

et al. 2021

Preprint

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Materials based on Mg2+-containing phosphates are gaining great relevance in the field of bone tissue repair via regenerative medicine methods. Magnesium ions, together with condensed phosphate ions, play a significant role in the process of bone remodeling, affecting the early stage of bone regeneration through active participation in the process of osteosynthesis. Here we pro-vide a comprehensive overview of the usage of biomaterials based on magnesium phosphate and magnesium calcium phosphate in bone reconstruction. The role of magnesium ions in angiogene-sis, an important process associated with osteogenesis, is considered. Finally, the biological properties of magnesium phosphates for bone regeneration are summarized. They show promis-ing results in terms of use as bone replacement material.

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Reaction mechanisms of magnesium potassium phosphate cement and its application

Cited by 10 publications

References 63 publications

Properties and Reaction Mechanisms of Magnesium Phosphate Cement Mixed with Ferroaluminate Cement

Properties and Reaction Mechanisms of Magnesium Phosphate Cement Mixed with Ferroaluminate Cement

Preparation and characterization of ferrous oxalate cement—A novel acid‐base cement

Resorbable Mg<sup>2+</sup>-Containing Phosphates for Bone Tissue Repair

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