研究目的
To fabricate porous poly(methyl methacrylate) (PMMA) membranes homogeneously decorated with exposed zinc oxide (ZnO) nanoparticles (NPs) using a simple approach that overcomes the disadvantages of conventional foaming processes and incorporation of inorganic NPs in polymeric matrices.
研究成果
The study successfully demonstrates a facile two-step method to obtain self-assembled porous PMMA membranes homogeneously decorated by ZnO NPs, overcoming typical disadvantages related to conventional foaming processes and inorganic filler dispersion methods. The wettability of the membranes can be tuned by varying the filler content and UV irradiation, making them suitable for potential applications in water treatment, wound management, or UV shielding.
研究不足
The study does not extensively explore the scalability of the fabrication method or the mechanical properties of the membranes for practical applications.
1：Experimental Design and Method Selection:
The study employs a two-step method involving solvent casting of a DMF solution of PMMA and zinc acetate, followed by thermal treatment to induce in situ formation of ZnO NPs.
2：Sample Selection and Data Sources:
Neat PMMA and nanocomposite porous membranes with 10, 15, and 20 wt% of inorganic NPs were prepared.
3：List of Experimental Equipment and Materials:
Dimethylformamide (DMF), PMMA, zinc acetate, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD).
4：Experimental Procedures and Operational Workflow:
The porous membranes were prepared by solvent casting and slowly evaporating DMF under an aspiration hood at room temperature, followed by annealing at 110 °C for 48 h.
5：Data Analysis Methods:
The wetting behavior was studied by dynamic water contact angle (WCA) tests, and the structure was analyzed using SEM, TEM, and XRD.
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