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Superamphiphobic Coatings with Low Sliding Angles from Attapulgite/Carbon Composites

Preparation of superamphiphobic coatings with low sliding angles (SAs) for liquids of low surface tension is challenging. Here, a simple and sustainable approach for preparation of superamphiphobic coatings with low SAs from attapulgite/carbon (APT/C) composites is reported. The coatings are prepare... Full description

Contained in: Advanced Materials Interfaces Vol. 5, No. 9 (2018), p. 1-9
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Links: Additional Link (dx.doi.org)
Additional Keywords: KOHLENSTOFF
KONDENSATION
KONTAKTWINKEL
N-DECAN
NANOGEFUEGE
NANOPARTIKEL
NANOSTAEBCHEN
OBERFLAECHENBESCHAFFENHEIT
OBERFLAECHENSPANNUNG
PYROLYSE
SILICON:POLYMER
TETRAETHYLORTHOSILICAT
VERBUNDWERKSTOFF
DOI: 10.1002/admi.201701520
Notes: Copyright: Metadaten: TEMA, Copyright WTI-Frankfurt eG
Copyright: (C) Alle Rechte beim Herausgeber
Physical Description: 9 Seiten, 11 Bilder, 2 Tabellen
ID (e.g. DOI, URN): 10.1002/admi.201701520
PPN (Catalogue-ID): WTI059430176
Note: WTI TEMA DB
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520 |a Preparation of superamphiphobic coatings with low sliding angles (SAs) for liquids of low surface tension is challenging. Here, a simple and sustainable approach for preparation of superamphiphobic coatings with low SAs from attapulgite/carbon (APT/C) composites is reported. The coatings are prepared by hydrolytic condensation of 1H,1H,2H,2H-perfluorodecyltriethoxysilane and tetraethoxysilane with the APT/C composites followed by spray-coating onto substrates. The APT/C composites are prepared by pyrolysis of spent bleaching earth containing APT. The influences of pyrolysis temperature of spent bleaching earth and the APT/C concentration on superamphiphobicity and surface morphology of the coatings are studied. Carbon nanoparticles are formed on the APT nanorods in the pyrolysis process. The APT/C nanorods are wrapped and linked together by a layer of fluorinated polysiloxane (fluoroPOS). The coatings exhibit excellent superamphiphobicity with high contact angles (CAs) and low SAs even for n-decane (CAn-decane = 154.2°, SAn-decane = 11.3°). This is because the new three-tier micro-/nano-/nanostructure is constructed by the combination of APT nanorods, carbon nanoparticles, and fluoroPOS. Also, the superamphiphobic coatings show very good chemical and thermal stability. It is believed that this study will shed light on preparation of superamphiphobic coatings with low SAs via a simple, cost-effective, and sustainable approach. [Copyright Wiley-VCH Verlag GmbH & Co. KGaA. Reproduced with permission.] 
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653 4 |a NANOPARTIKEL 
653 4 |a SILICON:POLYMER 
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950 |a attapulgite  |a superamhiphobe Oberfläche  |2 DE-601 
951 |a AR 
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