A nanocomposite coating was prepared on the surface of PVC (Poly Vinyl Chloride) substrate using spinning technique with attempt of incorporating alpha-FeOOH nanoneedles into the organic-inorganic hybrid matrices. The hybrid matrices were derived from tetraethoxysilane (TEOS) and 3-glycidoxypropyltrimethoxysilane (GLYMO) with a process of hydrolysis and condensation. It was found that the colorless and transparent nanocomposite coating endowed PVC substrate outstanding scratch and aging resistance.
The inorganic/organic hybrid membranes modified by MMA were deposited on the porous α-Al2O3 substrates (pore size, 2 µm) by the sol–gel technology. It was found that the introduction of MMA can not only improve the membrane formation properties, but also increase the selectivity of O2/N2 and O2/CO2. On the other hand, the modified hybrid membranes have more dense structure.
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