Respuesta :
The sol-gel method is a more chemical (wet chemical) method for creating different nanostructures, particularly metal oxide nanoparticles.
What is sol-gel formation?
The sol-gel hydrolysis and condensation of tetraethoxysilane allowed for the successful preparation of composites of poly(dimethylsiloxane) (PDMS) with silica and silica-titania mixed oxides (TEOS). The co-condensation between TEOS and PDMS was found to be the dominating reaction under the selected circumstances in the investigation of the hydrolysis and sol-gel transition reaction, and the majority of the PDMS was thereby included in the SiO2 network.
It was discovered that adding PDMS to the sol-gel reaction significantly reduced the system's gelation time. The significant improvement in impact strength that results from the presence of energy-absorbing ductile processes is the most noticeable change in the mechanical properties of composites with high inorganic content. When there is a high PDMS content, the in-situ precipitated ceramic phases can increase the polymer's heat stability.
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