This thesis uses the new type of nano hydroxide powder as the research object. Firstly, the main factors affecting the scattered nanowl powder in the rubber matrix are examined.The decentralized state in the matrix (butyra rubber, ternary ethylene rubber, butadylene rubber, silicon rubber). The results show that the viscosity of polymer matrix and the surface

As an important chemical product, magnesium hydroxide nanomaterials have been widely used in ceramics, flame retardant, catalytic, pharmaceutical and environmental protection fields. The morphology, size and dispersion of MgOH micro- and nanomaterials affect their application properties, so they need to be controlled. In this paper, the morphology, size and dispersion of magnesium hydroxide products were

Leaching is often equated with wet metallurgy in the mining industry. However, leaching is only one of the operations included in hydrometallurgy. Moreover, the process of hydrometallurgy can be carried out without leaching, for example, the precipitation of magnesium oxide from seawater using burned dolomite, a major source of magnesium. Other major hydrometallurgical operations include

Magnesium oxide nanoparticles have long-lasting and broad-spectrum antibacterial activity, and are UV-independent, safe, non-toxic, stable and have great potential for application. Different metal ion-doped magnesium oxide nanoparticles were prepared by coordination-precipitation, homogeneous precipitation and sol-gel methods, and their morphology and antibacterial activity were investigated. The results showed that magnesium oxide nanoparticles doped with different metal

Magnesium oxide nano powders with different particle sizes (10~100 nm) and crystallinity were synthesized by the citric acid sol-gel method using magnesium nitrate hexahydrate as the precursor. The effect of citric acid on the stability of the sol-gel and the effect of roasting temperature on the particle size and crystallinity of the powders were investigated.

The flame retardant effect of metal hydroxide is mainly the release of water by heat absorption and decomposition, when it is added to the polymer with high filling amount, the flame retardant polymer is brought by metal hydroxide when it is decomposed by heat – a series of physical effects: the release of water and

Highlights •Antimicrobial nanoparticles (NPs) are widely used in dental materials to improve their biological properties. •Magnesium Oxide (MgO) NPs are novel antimicrobial agents. •Incorporation of MgO NPs in dental cements aids in minimizing bacterial colonization at the restoration margin. •Zein polymer facilitates the dispersion of MgO NPs and avoid its agglomeration. •Zein polymer effectively enhances the

Abstract Objectives This study examined the antibacterial and antibiofilm properties of conventional glass-ionomer cement (GIC) modified by the addition of magnesium oxide (MgO) nanoparticles. Materials and methods MgO nanoparticles were characterised by XRD, FTIR, and SEM analysis and tested for its activity against Streptococcus mutans and Streptococcus sobrinus. MgO nanoparticles were incorporated into GIC powder (Ketac Molar Easymix) at different concentrations and the antibacterial