基于uv固化EP/HEA/CNTs协同改性的超两亲性PET膜表面构建策略

IF 5.4 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2025-08-04 DOI:10.1016/j.colsurfa.2025.137927

Yinchuan Pu , Duoduo Huang , Wei Xu

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引用次数: 0

摘要

近年来，PET薄膜迫切需要具有超亲水性和超亲油性，以满足精密印刷和生物医学界面等应用领域不断发展的工业需求。本研究利用高效的紫外光固化技术，通过亲油/亲水单元和微/纳米结构的协同整合，开发了超两亲性PET表面。采用环氧树脂（EP）和丙烯酸羟乙酯（HEA）作为交联基质，羧基化碳纳米管（CNTs）作为微/纳米结构形成的功能填料。改性PET薄膜表现出完全的润湿行为，对水和二碘甲烷均表现出0°的接触角，与未改性薄膜相比，表面能增加66.8 % （81.4 mN/m）。E1H2C3涂层在不影响抗拉强度的情况下保持了3b级的附着力。此外，高导电性的碳纳米管显著增强了薄膜的抗静电性能，最终与原始样品相比，电阻率降低了11个数量级。

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Strategies for the construction of superamphiphilic surfaces of PET films based on the synergistic modification of UV-cured EP/HEA/CNTs

Recently, it is urgent for PET films to demonstrate both superhydrophilicity and superoleophilicity to meet evolving industrial demands in applications such as precision printing and biomedical interfaces. This work developed a superamphiphilic PET surface through synergistic integration of oleophilic/hydrophilic units and micro/nano-structures, utilizing a highly efficient UV-curable technology. Epoxy resin (EP) and hydroxyethyl acrylate (HEA) were utilised as the crosslinking matrix, with carboxylated carbon nanotubes (CNTs) as functional fillers for micro/nano-structures formation. The modified PET films exhibited complete wetting behavior, showing 0° contact angles for both water and diiodomethane, along with a 66.8 % increase in surface energy (81.4 mN/m) compared to unmodified films. The E1H2C3 coating maintained 3B-grade adhesion without compromising tensile strength. Futhermore, the highly conductive CNTs significantly enhanced the film's antistatic properties, ultimately reducing resistivity by 11 orders of magnitude versus pristine samples.

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来源期刊

Colloids and Surfaces A: Physicochemical and Engineering Aspects 化学-物理化学

CiteScore

8.70

自引率

9.60%

发文量

2421

审稿时长

56 days

期刊介绍： Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena. The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.