采用纳米颗粒保护系统的木材防腐性能

IF 0.6 0 ART

International Journal of Conservation Science Pub Date : 2023-09-15 DOI:10.36868/ijcs.2023.03.01

Paula Vanesa Alfieri, Guadalupe Canosa

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引用次数: 0

摘要

本文制备了纳米颗粒分散体(纳米银、纳米氧化铜、纳米锌和纳米二氧化硅)作为保护浸渍剂。由于配方中各组分均可根据介质的pH值进行充电，故将溶液分别配制为pH=3和pH=8两种配置(应用时分别加入HCl或NH4OH处理pH变化)，并对其相互作用能力进行分析。纳米颗粒分散介质为乙醇，浓度范围为1 ~ 3% m/v。浸渍是用浸渍法进行的。由于细胞壁的化学和结构修饰，所有配方系统都产生了对生物制剂的良好保护。我们观察到，纳米颗粒的存在给予了最好的性能，这可以推断纳米木材形成的复合材料具有生物活性。另一个重要的问题是，该系统易于应用，所需浓度很低，这意味着成本低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Wood Decay Resistance Employing Nanoparticle Protective Systems

In this paper, nanoparticle dispersions (nanosilver, copper nano oxide, nanozinc, and nanosilica) have been formulated to be used as protective impregnants. Since all the components of the formulations could be charged according to the pH of the medium, the solutions were formulated with the two profiles of pH=3 and pH=8 (pH changes were handled with the addition of HCl or NH4OH at the time of application), and the interaction capacity has been analyzed. The nanoparticle dispersion medium was alcohol, and the concentrations ranged from 1 to 3% m/v. Impregnations have been performed by immersion. All formulated systems generated good protection against biotic agents due to chemical and structural modifications of the cell wall. It has been observed that the best performances were given with the presence of nanoparticles, which allowed inferring that the composite formed by nano-wood is bioactive. An issue that is also important is that the systems are easy to apply and very low concentrations are required, which translates into low costs.

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来源期刊

International Journal of Conservation Science ART-

CiteScore

1.70

自引率

37.50%

发文量

审稿时长

10 weeks

期刊介绍： The International Journal of Conservation Science (IJCS) is a high quality peer-reviewed journal devoted to the publication of original research papers in applied conservation science and its broad range of applications. IJCS it is an open access journal. All content is freely available without charge to any user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. The topics cover all disciplines and branches of modern scientific conservation, including different aspects on general conservation theory, scientific investigation of works of art, authentication, determination of conservation state, compatibility studies for preservation and restoration procedures and monitoring of interventions effectiveness, etiopathology of historic and natural monuments, studies on the mechanisms of deterioration and degradation for different materials as structural and ornamental elements, impact of the environmental factors or agents on monuments and ecosystems, obtaining and characterization of new materials and procedures for preservation and restoration, new methodologies for scientific investigation, cross-related problems concerning research applied to conservation science, biodiversity conservation. Review articles in selected areas are published from time to time.