Effect of PDDA surfactant on the microstructure and properties of electrodeposited SiO2/Ni nanocomposites

Ratajski, Tomasz; Kalemba–Rec, Izabela; Indyka, Paulina; Ledwig, P.; Szczerba, M.J.; Dubiel, B.

doi:10.1016/j.matchar.2020.110229

Cited by 11 publications

(6 citation statements)

References 31 publications

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“…Composite coating, especially Ni and Ni alloy matrix coating, can be prepared by electrodeposition [97][98][99][100][101] or electroless [102][103][104][105][106][107][108][109] methods. Electrodeposition, in contrast to electroless deposition, forces the deposition process on the surface of the cathode using potential difference.…”

Section: Composite Preparation From Aqueous Solutionsmentioning

confidence: 99%

Interfacial Aspects of Metal Matrix Composites Prepared from Liquid Metals and Aqueous Solutions: A Review

Baumli

2020

Metals

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The paper reviews the preparation of the different metallic nanocomposites. In the preparation of composites, especially in the case of nanocomposites, interfacial phenomena play an important role. This review summarizes the literature on various interfacial phenomena, such as wettability and reactivity in the case of casting techniques and colloidal behavior in the case of electrochemical and electroless methods. The main contribution of this work lies in the evaluation of collected interfacial phenomena and difficulties in the production of metal matrix composites, for both nano-sized and micro-sized reinforcements. This study can guide the composite maker in choosing the best criteria for producing metal matrix composites, which means a real interface with good adhesion between the matrix and the reinforcement. This criterion results in desirable mechanical and physical properties and homogenous dispersion of the reinforcement in the matrix.

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Section: Composite Preparation From Aqueous Solutionsmentioning

confidence: 99%

Interfacial Aspects of Metal Matrix Composites Prepared from Liquid Metals and Aqueous Solutions: A Review

Baumli

2020

Metals

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“…The PDDA and Boehmite linkers adsorbed on the support surface were used to capture LTA zeolite particles during hydrothermal synthesis. The use of PDDA allows reversing the charge of the SiO2 surface, in order to obtain a positively charged substrate and produce attractive electrostatic interactions between the surface of the substrate and the zeolite nanocrystals, PDDA is always cationic, regardless of pH [21]. However, Boehmite showed better results than the PDDA because it also generates a layer that will protect the wafer from the basic medium present in the dissolution of the synthesis gel, the boehmite intermediate layer enhance the adherence between zeolite seed layer and substrate by hydrogen bonding.…”

Section: Hydrothermal Synthesis Of A-type Zeolite Polycrystalline Coamentioning

confidence: 99%

Influence of boehmite intermediate layer as covalent linker on synthesis of LTA zeolite coatings

Rodríguez-Castro

Urbiztondo-Castro

Pina-Iritia

2020

Rev.Fac.Ing.Univ.Antioquia

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La incorporación de materiales nanoestructurados como la zeolita tipo LTA en las obleas de silicio, abre una puerta muy interesante para el uso de estos materiales dentro de las tecnologías de microfabricación basadas en silicio. En este trabajo, se estudió la deposición y el entrecruzamiento de la capa de zeolita tipo LTA libre de defectos en obleas de silicio de 3 pulgadas con una capa de SiO2 sometida a pretratamiento. La principal desventaja asociada con la síntesis de la capa de zeolita es la formación de grietas y la obtención de una capa uniforme. Al modificar los soportes con boehmita, se observó una mejora sustancial en términos de continuidad de capa y crecimiento de cristales en comparación con los recubrimientos preparados en polímero catiónico, poli (cloruro de dialildimetilamonio). Se sintetizó una capa de zeolita de tipo LTA entre un rango de 350 y 1300 nm mediante un método hidrotermal ex situ, a 363 K durante 12 h. Se usó hidróxido de tetrametilamonio (TMAOH) como molde y se usaron isopropóxido de aluminio y sílice coloidal como fuentes de Al y Si, respectivamente.

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“…[28] Ratajski et al found that PDDA as a surfactant could improve the retention and dispersion of silica in the matrix without damaging the original composite structure. [29] In addition, PDDA exhibits good dissociation ability in a wide range of pH in both water and ethanol. [30] It is foreseeable that PDDA has high applicability to the pulp environment during the papermaking process.…”

Section: | Introductionmentioning

confidence: 99%

Enhanced Aramid/Al2O3 interfacial properties by PDDA modification for the preparation of composite insulating paper

Lü

Song

et al. 2022

Res Chem Intermed

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For further improve the electrical insulation properties of meta-aramid paper(PMIA), polydimethyldiallyl ammonium chloride (PDDA) was used for the modi cation of nano-Al 2 O 3 in this work. The modi ed products were characterized by means of transmission electron microscopy (TEM), Fourier transform infrared spectrometer (FTIR) and liquid Zeta potential. The original and PDDA modi ed nano-Al 2 O 3 was doped into the aramid ber composite, and the effects of PDDA and ller mass fraction on several properties such as electrical conductivity, breakdown strength and surface charge dissipation rate of insulating paper were studied. Finally, the interfacial properties of the composites were investigated using molecular dynamics (MD). The results showed that PDDA was successfully coated on the surface of nano-Al 2 O 3 , and its surface potential was changed from negative to positive, which could improve the interface characteristics between ller and matrix and enhance the dielectric strength of aramid paper. Besides, saturation effect of PDDA modi cation was observed, and when the amount of PDDA was 10% and the content of modi ed nano-Al 2 O 3 was 3%, the breakdown strength of aramid paper was increased by 20%, and the volume conductivity was decreased by 68%. The simulation result revealed that PDDA could improve the insulation performance of aramid paper by reducing the interfacial binding energy between aramid and ller.

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Effect of PDDA surfactant on the microstructure and properties of electrodeposited SiO2/Ni nanocomposites

Cited by 11 publications

References 31 publications

Interfacial Aspects of Metal Matrix Composites Prepared from Liquid Metals and Aqueous Solutions: A Review

Interfacial Aspects of Metal Matrix Composites Prepared from Liquid Metals and Aqueous Solutions: A Review

Influence of boehmite intermediate layer as covalent linker on synthesis of LTA zeolite coatings

Enhanced Aramid/Al2O3 interfacial properties by PDDA modification for the preparation of composite insulating paper

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