دورية أكاديمية

Self‐Stratifying Porous Silicones with Enhanced Liquid Infusion and Protective Skin Layer for Biofouling Prevention.

التفاصيل البيبلوغرافية
العنوان: Self‐Stratifying Porous Silicones with Enhanced Liquid Infusion and Protective Skin Layer for Biofouling Prevention.
المؤلفون: Vena, Alex, Kolle, Stefan, Stafslien, Shane, Aizenberg, Joanna, Kim, Philseok
المصدر: Advanced Materials Interfaces; 1/22/2021, Vol. 8 Issue 2, p1-10, 10p
مصطلحات موضوعية: FOULING organisms, FOULING, SILICONES, PORE size distribution, SKIN
مستخلص: Liquid‐infused silicones are a promising solution for common surface adhesion problems, such as ice accumulation and biofilm formation, yet they generally lack the tunability, mechanical durability and/or longevity essential for industrial applications. Self‐stratifying porous silicones (SPS) infused with compatible silicone oil are developed as a passive strategy to address these shortcomings. Through emulsion templating, porosity is formed in the bulk polymer, providing increased free volume for oil infusion, while a non‐porous skin layer is formed at the surface. The bulk porosity and pore size distribution of SPS are independently controlled by varying water and surfactant concentration respectively, leading to a higher volume of oil infusion and improved oil retention relative to an unmodified silicone. Despite a higher oil loading and bulk porosity, the skin layer provides liquid‐infused SPS with a comparable surface elasticity to liquid‐infused silicones. The potential of liquid‐infused SPS as a nontoxic fouling release coating for marine applications is demonstrated using laboratory assays against a variety of soft and hard fouling organisms. [ABSTRACT FROM AUTHOR]
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قاعدة البيانات: Complementary Index
الوصف
تدمد:21967350
DOI:10.1002/admi.202000359