Halloysite Nanotubes: Interfacial Properties and Applications in Cultural Heritage.
Halloysite Nanotubes: Interfacial Properties and Applications in Cultural Heritage.
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DOI：
10.1021/acs.langmuir.0c00573
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发表时间：
2020-04-14
期刊：
影响因子：
--
通讯作者：
Lazzara G
中科院分区：
文献类型：
--
作者：
Cavallaro G;Milioto S;Lazzara G
埃洛石纳米管的特殊表面及其生物相容性吸引了研究人员的兴趣，基于广泛的可实现的应用。这种纳米管材料的大纵横比确保了作为聚合物基质（例如纤维素及其衍生物）中的增强剂的有希望的性质，所述聚合物基质由于例如老化诱导的降解而需要增强。埃洛石腔体的大小适合容纳各种活性物质，如脱酸剂（氢氧化钙）和阻燃剂（氟化表面活性剂），以实现与文化遗产保护相关的受控和持续释放。此外，阴离子表面活性剂可以选择性地吸附在内表面，产生能够在受控的清洁方案中溶解疏水物质的无机胶束。我们简要讨论了天然埃洛石纳米管如何在文化遗产的各种保护过程中发挥支持作用，并对未来的前景进行了展望。
The peculiar surfaces of halloysite nanotubes and their biocompatibility are attracting the interest of researchers based on the wide range of attainable applications. The large aspect ratio of this nanotubular material ensures promising properties as a reinforcing agent in polymeric matrixes, such as cellulose and its derivatives, that entail strengthening due to, for instance, aging-induced degradation. The halloysite cavity has a suitable size for hosting a large variety of active species such as deacidifying (calcium hydroxide) and flame retardant agents (fluorinated surfactants) for a controlled and sustained release relevant to the conservation of cultural heritage. Additionally, anionic surfactants can be selectively adsorbed at the inner surface generating inorganic micelles able to solubilize hydrophobic species in a controlled cleaning protocol. We briefly discuss how the natural halloysite nanotubes can be supportive in various conservation processes of cultural heritage and present an outlook for future perspectives.
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