Design and preparation of sandwich-like polydimethylsiloxane (PDMS) sponges with super-low ice adhesion

Soft Matter
Zhiwei HeZhiliang Zhang

Abstract

The mitigation of ice on exposed surfaces is of great importance to many aspects of life. Ice accretion, however, is unavoidable as time elapses and temperature lowers sufficiently. One practical solution is to reduce the ice adhesion strength on a surface to as low as possible, by either decreasing the substrate elastic modulus, lowering surface energy or increasing the length of cracks at the ice-solid interface. Herein, we present a facile preparation of polydimethylsiloxane (PDMS) based sandwich-like sponges with super-low ice adhesion. The weight ratio of the PDMS prepolymer to the curing agent is tuned to a lower surface energy and elastic modulus. The introduction of PDMS sponge structures combined the advantages of both a reduced apparent elastic modulus and most importantly, the macroscopic crack initiators at the ice-solid interface, resulting in dramatic reduction of the ice adhesion strength. Our design of sandwich-like sponges achieved a low ice adhesion strength as low as 0.9 kPa for pure PDMS materials without any additives. The super-low ice adhesion strength remains constant after 25 icing and deicing cycles. We thus provide a new and low-cost approach to realize durable super-low ice adhesion surfaces.

References

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Sep 13, 2017·Soft Matter·Zhiwei HeZhiliang Zhang

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Citations

Apr 12, 2019·Soft Matter·Yizhi ZhuoZhiliang Zhang
Aug 28, 2019·Nanoscale·Senbo XiaoJianying He
Jan 26, 2021·Journal of Colloid and Interface Science·Majid MohseniKevin Golovin
Dec 29, 2020·Journal of Colloid and Interface Science·Jie WangXianghui Hou
Jan 19, 2021·Journal of Colloid and Interface Science·Pablo F Ibáñez-IbáñezMiguel A Rodríguez-Valverde
Mar 23, 2021·Macromolecular Rapid Communications·Jinfeng CaoShengyu Feng
Nov 17, 2020·ACS Applied Materials & Interfaces·Cuiping ZhouYongming Zhang
Nov 18, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Muhammad Imran JamilFengqiu Chen
Aug 27, 2021·Science·Abhishek DhyaniAnish Tuteja
Sep 22, 2020·ACS Applied Materials & Interfaces·Yubo LiuFeng Zhou
Sep 10, 2021·Advanced Science·Feng WangZhiliang Zhang
Sep 10, 2021·ACS Applied Materials & Interfaces·Tongtong HaoJianjun Wang
Dec 18, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Zhiwei HeQinghua Zhang

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