用于 PET 表面处理和减小接触角的紫外线臭氧发生器组件

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-04-01 DOI:10.1109/MIM.2024.10473017

Havena Louise Pavan, Juscelino Valter Barbosas, Andreia Gerniski Macedo, Marco Aurélio Toledo da Silva, Carlos Eduardo Cava

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引用次数: 0

摘要

低成本的紫外臭氧箱在改善 PET 基底的附着力方面显示出良好的效果。对曝光时间和温度的应用表明，曝光 2 小时后，透射率保持不变，接触角减少了 30°。这一过程使 PET 基底从疏水变为亲水，有利于水基材料的沉积。傅立叶变换红外光谱分析也证明，紫外臭氧照射会促进 PET 基底上的酯基和对苯二甲酸酯基发生永久性变化。原子力显微镜分析表明，薄膜的粗糙度对基底的亲水性有很大影响。薄膜的亲水特性在 24 小时内保持稳定，但在关闭紫外线照明后的第一个小时内，薄膜的亲水特性会降低 15°。

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UV-Ozone Chamber Assembled for Treatment and Contact Angle Reduction on PET Surfaces

A low-cost UV-Ozone chamber showed promising results for improving adhesion on PET substrates. Exposure times and temperatures were applied, revealing that with 2 hours of exposure, the transmittance remained intact, and the contact angle was reduced by 30°. This process makes the PET substrate change from hydrophobic to hydrophilic, favoring the deposition of water-based materials. It was also proven, by FTIR analysis, that UV-Ozone exposure promotes permanent changes at ester and terephthalate groups on PET substrates. The AFM analysis demonstrated that the films' roughness significantly affects the substrates' hydrophilicity. The film's hydrophilic characteristics remain stable for more than 24 hours; however, a reduction of 15° is observed in the first hour after UV lighting is switched off.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.