Development of photoluminescent artificial nacre-like nanocomposite from polyester resin and graphene oxide,Microscopy Research and Technique

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Development of photoluminescent artificial nacre-like nanocomposite from polyester resin and graphene oxide
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2022-05-27 , DOI: 10.1002/jemt.24169
Ahmed Hameed ₁ , Razan M Snari ₁ , Omaymah Alaysuy ₂ , Ahmad A Alluhaybi ₃ , Mona Alhasani ₁ , Hana M Abumelha ₄ , Nashwa M El-Metwaly _{1,

5}

Affiliation

Long-lasting phosphorescent nacre-like material was simply prepared from a nanocomposite of inorganic and organic materials. Low molecular weight unsaturated polyester (PET), graphene oxide (GO), and nanoparticles of rare-earth activated aluminate pigment were used in the preparation process of an organic/inorganic hybrid nanocomposite. Using methylethylketone peroxide (MEKP) as a hardener, we were able to develop a fluid solution that hardens within minutes at room temperature. Covalent and hydrogen bonds were introduced between the polyester resin and graphene oxide nanosheets. The interface interactions of those bonds resulted in toughness, excellent tensile strength, and high durability. The produced nacre substrates demonstrated long-persistent and reversible luminescence. The excitation of the produced nacre substrates at 365 nm resulted in a 524 nm emission. After being exposed to UV light, the photoluminescent nacre substrates became green. The increased superhydrophobic activity of the produced nacre substrates was achieved without affecting their physico-mechanical properties.

中文翻译：

聚酯树脂和氧化石墨烯的光致发光人造珍珠层状纳米复合材料的开发

由无机和有机材料的纳米复合材料简单地制备了长效磷光珍珠层状材料。低分子量不饱和聚酯（PET）、氧化石墨烯（GO）和稀土活性铝酸盐颜料纳米颗粒被用于制备有机/无机杂化纳米复合材料。使用过氧化甲乙酮 (MEKP) 作为硬化剂，我们能够开发出在室温下几分钟内硬化的流体溶液。在聚酯树脂和氧化石墨烯纳米片之间引入了共价键和氢键。这些键的界面相互作用产生了韧性、优异的拉伸强度和高耐久性。所生产的珍珠层底物表现出持久且可逆的发光。在 365 nm 处激发所产生的珍珠层基板导致 524 nm 发射。在暴露于紫外光后，光致发光珍珠母基底变为绿色。在不影响其物理机械性能的情况下，实现了所生产的珍珠层基材的增加的超疏水活性。

更新日期：2022-05-27

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