Halloysite Nanotubes: Interfacial Properties and Applications in Cultural Heritage,Langmuir

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Halloysite Nanotubes: Interfacial Properties and Applications in Cultural Heritage
Langmuir ( IF 3.7 ) Pub Date : 2020-04-02 , DOI: 10.1021/acs.langmuir.0c00573
Giuseppe Cavallaro _{1,

2} , Stefana Milioto _{1,

2} , Giuseppe Lazzara _{1,

2}

Affiliation

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.

中文翻译：

埃洛石纳米管：界面特性及其在文化遗产中的应用

基于广泛可获得的应用，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。这种纳米管材料的大长径比确保了在聚合物基体（例如纤维素及其衍生物）中作为增强剂的有希望的性能，该性能由于例如老化引起的降解而需要增强。埃洛石空腔的尺寸合适，可容纳多种活性物质，例如脱酸（氢氧化钙）和阻燃剂（氟化表面活性剂），用于与文化遗产保护有关的受控和持续释放。另外，阴离子表面活性剂可以选择性地吸附在内表面上，从而产生无机胶束，该胶束能够以受控的清洁方案溶解疏水物质。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起到支持作用，并提出了未来的展望。

更新日期：2020-04-03

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