‍ Epoxy-resin-based Slippery Liquid Infused Anti-icing Coating Based on Breath Figure

Shu-rui Zhao; Ting Shen; Yu-tang Li; Ran Deng; Hao-cheng Yang; Wei-hua Li

doi:10.11777/j.issn1000-3304.2021.21116

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‍ Epoxy-resin-based Slippery Liquid Infused Anti-icing Coating Based on Breath Figure

Research Article | 更新时间：2023-05-22

- ‍ Epoxy-resin-based Slippery Liquid Infused Anti-icing Coating Based on Breath Figure
- ACTA POLYMERICA SINICA Vol. 52, Issue 12, Pages: 1622-1631(2021)
- 作者机构：
  
  中山大学化学工程与技术学院珠海 519000
- 作者简介：
  
  Hao-cheng Yang, E-mail: yanghch8@mail.sysu.edu.cnWei-hua Li, E-mail: liweihua3@mail.sysu.edu.cn
  Hao-cheng Yang, E-mail: yanghch8@mail.sysu.edu.cnWei-hua Li, E-mail: liweihua3@mail.sysu.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2021.21116
  CLC：
- Published：20 December 2021，
  
  Published Online：26 August 2021，
  
  Received：23 April 2021，
  
  Revised：19 May 2021，
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赵书瑞,申婷,李玉堂等.基于呼吸图法的环氧树脂基超滑液体灌注防冰涂层[J].高分子学报,2021,52(12):1622-1631.

Zhao Shu-rui,Shen Ting,Li Yu-tang,et al.‍ Epoxy-resin-based Slippery Liquid Infused Anti-icing Coating Based on Breath Figure[J].ACTA POLYMERICA SINICA,2021,52(12):1622-1631.
赵书瑞,申婷,李玉堂等.基于呼吸图法的环氧树脂基超滑液体灌注防冰涂层[J].高分子学报,2021,52(12):1622-1631. DOI： 10.11777/j.issn1000-3304.2021.21116.

Zhao Shu-rui,Shen Ting,Li Yu-tang,et al.‍ Epoxy-resin-based Slippery Liquid Infused Anti-icing Coating Based on Breath Figure[J].ACTA POLYMERICA SINICA,2021,52(12):1622-1631. DOI： 10.11777/j.issn1000-3304.2021.21116.

摘要

通过呼吸图法构筑了多孔环氧树脂基底，并在此基础上通过聚二甲基硅氧烷改性以及二甲基硅油润滑液灌注制备了具有优异润滑性的液体灌注涂层. 实验结果表明，基底表面孔径及孔隙率随着环境湿度增大而增大，且涂层在不同金属基底上都有良好的黏附性能. 基于上述基底所制备的液体灌注涂层具有较低的滚动角(2°)，且对多种液体具有良好的滑动性. 该涂层被用于冰黏附的防治，展现出较低的冰黏附强度(175 kPa)及较长的延迟结冰时间(>600 s)，表明其具有优异的防冰性能.

Abstract

Slippery liquid-infused porous surface (SLIPS) is an emerging low-adhesion material that has found wide uses in anti-icing and anti-fouling. However

the poor adhesion of SLIPSs by top-down methods restricts the practical applications of SLIPSs. In the current research

we fabricated an epoxy-based SLIPS with excellent liquid-repellent and anti-icing properties. The porous epoxy resin substrate was primarily constructed by breath figure and then modified with polydimethylsiloxane (PDMS). Silicone oil was infiltrated within the substrate

serving as the lubricant layer. The hygroscopic polyamine cross-linker plays a crucial role in inducing water droplet nucleation. The surface pore size of the epoxy substrate grows from 4.09 μm to 5.09 μm while the porosity increases from 4.73% to 46.67% when the environmental humidity is elevated from (65±5)% to (95±5)%. The porous epoxy coatings attach robustly to a variety of metal substrates with an adhesion strength of around 2.2 MPa. After grafting PDMS

the pores were filled with the polymer

which could reserve silicone oil through polymer swelling and capillary sorption. The SLIPS prepared based on the epoxy substrate exhibits an extremely low water sliding angle of 2°

as well as excellent repellence to a variety of liquids including coffee

Chinese ink

milk and even high-viscous honey. On the other hand

the dynamic lubricant layer endows the coating with excellent anti-icing property owing to its low freezing temperature. The coating performs a much longer delay in freezing time (632 s) than those of the glass (21 s) and epoxy coating (94 s)

as well as ultralow ice adhesion strength of 1.75 kPa in contrast to the glass substrate (166.9 kPa) and epoxy coating (50.7 kPa)

indicating excellent anti-icing performance. The ice adhesion strength on our SLIPS is much smaller than those on commercial and some reported anti-icing coatings. Moreover

no obvious increase in ice adhesion strength can be observed after 20 times tests

displaying outstanding long-term anti-icing property.

关键词

呼吸图法环氧树脂超滑液体灌注涂层防冰

Keywords

Breath figureEpoxy resinSlippery liquid infused porous surfaceAnti-icing

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Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences

Department of Polymer Science and Materials, Dalian University of Technology

College of Material Science and Chemical Engineering, Harbin Engineering University

College of Chemistry and Chemcal Engineering, Guangxi Univerisity

State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University

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