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1. Polyelectrolyte adsorption in single small nanochannel by layer-by-layer method

Author:
Li, Jun; Li, Dongqing
Source:
Journal of colloid and interface science 2020 v.561 pp. 1-10
ISSN:
0021-9797
Subject:
coatings,   etc   ; adsorption; electrolytes; electroosmosis; polydimethylsiloxane;     Show all 5 Subjects
Abstract:
... Nanochannel size control by using layer-by-layer (LBL) deposition of polyelectrolytes is experimentally studied in single hard Polydimethylsiloxane (PDMS) nanochannel. Electroosmotic flow (EOF) velocity is measured by using the current-slope method in the modified nanochannel with various numbers of the deposition layers. The results reveal that the growth of polyelectrolyte layer in nanochannels ...
DOI:
10.1016/j.jcis.2019.11.116

2. Regulated phase separation in nanopatterned protein-polysaccharide thin films by spin coating

Author:
Banta, Russell A.; Collins, Timothy W.; Curley, Ricky; O'Connell, John; Young, Paul W.; Holmes, Justin D.; Flynn, Eoin J.
Source:
Colloids and surfaces 2020 v.190 pp. 110967
ISSN:
0927-7765
Subject:
coatings,   etc   ; biopolymers; films (materials); polysaccharides; separation; viscosity;     Show all 6 Subjects
Abstract:
... Patterned films are essential to the commonplace technologies of modern life. However, they come at high cost to the planet, being produced from non-renewable, petrochemical-derived polymers and utilising substrates that require harsh, top-down etching techniques. Biopolymers offer a cheap, sustainable and viable alternative easily integrated into existing production techniques. We describe a simp ...
DOI:
10.1016/j.colsurfb.2020.110967

3. Physical degradation of hydrophobized sands

Author:
Lin, Hongjie; Lourenço, Sérgio D.N.
Source:
Powder technology 2020 v.367 pp. 740-750
ISSN:
0032-5910
Subject:
coatings,   etc   ; hydrophobicity; infrastructure; rapid methods; tung oil;     Show all 5 Subjects
Abstract:
... Hydrophobized sands can be used to control infiltration as barriers in ground infrastructure. As coated granular materials, the interaction between particles is assumed to damage the coatings leading to a reduction in hydrophobicity. This study provides an insight into the physical degradation of hydrophobized sands treated with Tung oil, heated Tung oil and dimethyldichlorosilane. The Micro-Deval ...
DOI:
10.1016/j.powtec.2020.04.015

4. A New approach to evaluating ink curing time using differential scanning calorimetry

Author:
Horlor, Brian; Hoover, Carianne; Lamb, James; Ramirez, Michael; Soto, Carissa M.; Carlo, Steven
Source:
Thermochimica acta 2020 v.687 pp. 178579
ISSN:
0040-6031
Subject:
coatings,   etc   ; differential scanning calorimetry; drying; standard deviation;     Show all 4 Subjects
Abstract:
... A new method for analyzing the drying characteristics of ink has been developed using Differential Scanning Calorimetry (DSC). DSC is able to determine the drying time of an ink in 30–45 min. In contrast, the ASTM method uses a Beck-Koller (BK) Dryer instrument to draw a stylus across an ink film to evaluate film drying, which can take hours or days depending on the film. This DSC method is compar ...
DOI:
10.1016/j.tca.2020.178579

5. Sol–gel-based coatings for oxidation protection of TiAl alloys

Author:
Wu, Lian-Kui; Wu, Jing-Jia; Wu, Wei-Yao; Cao, Fa-He; Jiang, Mei-Yan
Source:
Journal of materials science 2020 v.55 no.15 pp. 6330-6351
ISSN:
0022-2461
Subject:
coatings,   etc   ; alloys; aluminum; industry; oxidation; titanium;     Show all 6 Subjects
Abstract:
... The low density, high specific strength, and good creep properties make TiAl alloys being promising high-temperature structural materials in aerospace and automotive industries. However, the insufficient oxidation resistance limits their extensive practical applications . It is the intention of this review to illustrate the mechanism and development of sol–gel-based coatings, a surface modificatio ...
DOI:
10.1007/s10853-020-04466-0

6. Influence of heating conditions and initial thickness on the effectiveness of thin intumescent coatings

Author:
Lucherini, Andrea; Hidalgo, Juan P.; Torero, Jose L.; Maluk, Cristian
Source:
Fire safety journal 2020 pp. 103078
ISSN:
0379-7112
Subject:
coatings,   etc   ; heat; prediction; steel; temperature; thermogravimetry;     Show all 6 Subjects
Abstract:
... The study presented herein shows an experimental methodology aimed at analysing the effectiveness of intumescent coatings through detailed characterisation of their thermo-physical response for a range of heating conditions and applied initial dry film thickness (DFT). Steel plates coated with a commercial solvent-based thin intumescent coating were exposed to well-defined and highly-repeatable he ...
DOI:
10.1016/j.firesaf.2020.103078

7. Slippery liquid-infused porous surfaces (SLIPSs): a perfect solution to both marine fouling and corrosion?

Author:
Deng, Ran; Shen, Ting; Chen, Honglei; Lu, Jiaxing; Yang, Hao-Cheng; Li, Weihua
Source:
Journal of materials chemistry A 2020 v.8 no.16 pp. 7536-7547
ISSN:
2050-7496
Subject:
coatings,   etc   ; biofouling; corrosion; engineering; equipment; gels;     Show all 6 Subjects
Abstract:
... Marine corrosion and biofouling are the biggest challenges to the security of marine engineering equipment and offshore structures. Slippery liquid-infused porous surfaces (SLIPSs), emerging bio-inspired surfaces which have attracted widespread research interest over the past few years, have great potential in corrosion protection and biofouling prevention. It is valuable to summarize the most rec ...
DOI:
10.1039/d0ta02000a

8. Progress in silicon microwire solar cells

Author:
Um, Han-Don; Lee, Kangmin; Hwang, Inchan; Park, Jeonghwan; Choi, Deokjae; Kim, Namwoo; Kim, Hyungwoo; Seo, Kwanyong
Source:
Journal of materials chemistry A 2020 v.8 no.11 pp. 5395-5420
ISSN:
2050-7496
Subject:
coatings,   etc   ; electrodes; optical properties; silicon; solar cells;     Show all 5 Subjects
Abstract:
... Silicon microwires are very promising candidates for next-generation solar cells. Si microwires achieve strong broadband light absorption, acting as an antireflection coating layer. In addition to superior optical properties, Si microwires can effectively separate and collect photocarriers at the radial junction owing to a short diffusion length (equal to the microwire radius). This factor can rel ...
DOI:
10.1039/c9ta12792e

9. A DEM-based mechanistic model for scale-up of industrial tablet coating processes

Author:
Li, Liang; Kemp, Ian; Palmer, Mark
Source:
Powder technology 2020 v.364 pp. 698-707
ISSN:
0032-5910
Subject:
coatings,   etc   ; mechanistic models; model validation; powders; prediction;     Show all 5 Subjects
Abstract:
... In this study, a mechanistic model was developed for industrial scale-up of tablet coating processes. The model considers tablet coating based on first principles and aims to keep the coating process as closely equivalent as possible on scale-up. As part of the model, DEM was employed to find tablet velocities and residence times at the tablet bed surface and in the spray zone.Both constant Froude ...
DOI:
10.1016/j.powtec.2020.01.087

10. Deposition of nanoparticles from a volatile carrier liquid

Author:
Homede, Ekhlas; Manor, Ofer
Source:
Journal of colloid and interface science 2020 v.562 pp. 102-111
ISSN:
0021-9797
Subject:
coatings,   etc   ; adhesion; convection; evaporation; liquids; nanoparticles;     Show all 6 Subjects
Abstract:
... Traversing length scales in a volatile suspension alters the various contributions to particle deposition from conjoining and disjoining surface forces and from convective and liquid evaporative effects, which is apparent in the deposit morphology.We investigate the particulate structures to result from the self-assembly of nanoparticles following the evaporation of a volatile carrier liquid from ...
DOI:
10.1016/j.jcis.2019.11.062

11. Metallic copper removal optimization from real wastewater using pulsed electrodeposition

Author:
de Morais Nepel, Thayane Carpanedo; Carpanedo de Morais Nepel, Thayane; Landers, Richard; Gurgel Adeodato Vieira, Melissa; Florêncio de Almeida Neto, Ambrósio
Source:
Journal of hazardous materials 2020 v.384 pp. 121416
ISSN:
0304-3894
Subject:
coatings,   etc   ; copper; oxides; temperature; waste utilization; wastewater;     Show all 6 Subjects
Abstract:
... The recovery of metals from wastewater is a recurrent problem due to numerous productive activities that produce wastewaters rich in toxic metals. Within this context, this research presents the study and optimization of copper recovery of real wastewater using pulsed electrodeposition. The studied parameters – method, current, temperature, and rotation– influence both the removal of Cu and the co ...
DOI:
10.1016/j.jhazmat.2019.121416

12. Polydopamine as a stable and functional nanomaterial

Author:
El Yakhlifi, Salima; Ball, Vincent
Source:
Colloids and surfaces 2020 v.186 pp. 110719
ISSN:
0927-7765
Subject:
coatings,   etc   ; dopamine; mussels; nanoparticles; nanotubes; oxidants; oxidation;     Show all 7 Subjects
Abstract:
... The mussel inspired chemistry of dopamine leading to versatile coatings on the surface of all kinds of materials in a one pot process was considered as the unique aspect of catecholamine for a long time. Only recently, research has been undertaken to valorize the simultaneous oxidation and colloid formation in dopamine solutions in the presence of an oxidant. This mini review summarizes the synthe ...
DOI:
10.1016/j.colsurfb.2019.110719

13. Graphoepitaxy of hard spheres into square lattices

Author:
Zhu, Xilan; Bonnecaze, Roger T.; Truskett, Thomas M.
Source:
Colloids and surfaces 2020 v.585 pp. 124115
ISSN:
0927-7757
Subject:
coatings,   etc   ; Monte Carlo method; particle size;     Show all 3 Subjects
Abstract:
... The 2D directed self-assembly of micron-sized hard spherical particles within square confinements is studied theoretically and experimentally. Grand Canonical Monte Carlo simulations are used to predict the equilibrium packing structures of particles in square wells of specific dimensions. Spin coating and mechanical rubbing processes are used for the directed self-assembly of a monolayer of parti ...
DOI:
10.1016/j.colsurfa.2019.124115

14. Gas chromatography using a spin-coated stationary phase and a molded elastomer micro-channel

Author:
Breshike, Christopher J.; Furstenberg, Robert; Dominguez, Dawn; Kusterbeck, Andrew; Kozak, Dmitry; Stievater, Todd; McGill, R. Andrew
Source:
Journal of chromatography 2020 v.1610 pp. 460555
ISSN:
0021-9673
Subject:
coatings,   etc   ; epoxides; gas chromatography; gold; lids; pressing;     Show all 6 Subjects
Abstract:
... Many different designs of microfabricated gas chromatography columns have recently been proposed and demonstrated. These designs either incorporate a stationary phase directly into the device which limits the versatility of the column as a separator, or require coating, which presents its own problems with determining the proper conditions for each different stationary phase a user may need. Here, ...
DOI:
10.1016/j.chroma.2019.460555

15. Ultra-Wear-Resistant MXene-Based Composite Coating via in Situ Formed Nanostructured Tribofilm

Author:
Yin, Xuan; Jin, Jie; Chen, Xinchun; Rosenkranz, Andreas; Luo, Jianbin
Source:
ACS applied materials & interfaces 2019 v.11 no.35 pp. 32569-32576
ISSN:
1944-8252
Subject:
coatings,   etc   ; lubrication; nanodiamonds; polytetrafluoroethylene;     Show all 4 Subjects
Abstract:
... Newly emerging two-dimensional (2D) materials of MXenes possess lots of merits, which provide potential solutions for the lubrication issues in harsh conditions. Here, preliminary efforts were devoted to developing an MXene-based 2D composite coating and its antiwear interfacial performance in ambient environments. Macroscale and atomic-scale characterizations were utilized to explore the lubricat ...
DOI:
10.1021/acsami.9b11449

16. Comparison of PVD Coatings Nacro⁴ and TIALN + DLC Deposited on High Contact Ratio Gearing Interacting With Conventional and Ecological Lubricants

Author:
Fürstenzeller, Adam; Tóth, František; Kadnár, Milan; Rusnák, Juraj; Bošanský, Miroslav
Source:
Acta technologica agriculturae 2019 v.22 no.2 pp. 48-55
ISSN:
1338-5267
Subject:
coatings,   etc   ; gears; lubricants; lubrication;     Show all 4 Subjects
Abstract:
... Proposed paper deals with experimental tests performed on the Nieman M01 FZG test rig. Experiments were carried out in accordance with STN 65 6280 standard for FZG scuffing tests, from which load values for each load level were obtained. HCR gears made of 16MnCr5 material were utilized during experimental tests. Gear surface was deposited by PVD coatings of nACRo⁴ and TiAlN + DLC. Conventional lub ...
DOI:
10.2478/ata-2019-0009

17. Macroscopic supramolecular assembly of rigid hydrogels assisted by a flexible spacing coating

Author:
Ju, Guannan; Zhang, Qian; Guo, Fengli; Xie, Peichen; Cheng, Mengjiao; Shi, Feng
Source:
Journal of materials chemistry B 2019 v.7 no.10 pp. 1684-1689
ISSN:
2050-7518
Subject:
coatings,   etc   ; hydrogels; tissue scaffolds;     Show all 3 Subjects
Abstract:
... To address the difficult challenge of realizing macroscopic supramolecular assembly (MSA) of high-modulus hydrogels, we propose a strategy of introducing a flexible spacing coating to improve the surface compliance for efficient MSA, which holds promise to develop versatile MSA methods for fabricating hydrogel-based tissue scaffolds, and to provide insight into the MSA mechanism. ...
DOI:
10.1039/c8tb02588f

18. Fabrication of Two-Dimensional Crystalline Organic Films by Tilted Spin Coating for High-Performance Organic Field-Effect Transistors

Author:
Dai, Fuhua; Liu, Xuying; Yang, Tengzhou; Qian, Jun; Li, Yun; Gao, Yang; Xiong, Pan; Ou, Hai; Wu, Jin; Kanehara, Masayuki; Minari, Takeo; Liu, Chuan
Source:
ACS applied materials & interfaces 2019 v.11 no.7 pp. 7226-7234
ISSN:
1944-8252
Subject:
coatings,   etc   ; spinning; transistors;     Show all 3 Subjects
Abstract:
... We developed a facile method for fabricating large-area, two-dimensional (2D), organic, highly crystalline films and extended it to organic thin-film transistor arrays. Tilted spinning provided oriented flow at the three-phase contact line, and a 2D crystalline film that consisted of layer-by-layer stacked 2,7-diocty[1]benzothieno[3,2-b]benzothiophene (C₈-BTBT) was obtained facilely for organic th ...
DOI:
10.1021/acsami.8b21298

19. Highly Enhanced Thermochromic Performance of VO₂ Film Using “Movable” Antireflective Coatings

Author:
Xu, Fang; Cao, Xun; Shao, Zewei; Sun, Guangyao; Long, Shiwei; Chang, Tianci; Luo, Hongjie; Jin, Ping
Source:
ACS applied materials & interfaces 2019 v.11 no.5 pp. 4712-4718
ISSN:
1944-8252
Subject:
coatings,   etc   ; electricity generation; solvents;     Show all 3 Subjects
Abstract:
... The VO₂ film with “movable” antireflective (AR) coating was initially designed and successfully prepared to deal with the challenges that VO₂ faced. The “movable” AR layer, including water and other organic solvents, not only endowed VO₂ with active-passive regulation mode but also dramatically enhanced the thermochromic performance. Furthermore, we combined solid and movable antireflection layer ...
DOI:
10.1021/acsami.8b20794

20. How to avoid the formation of hazardous chlorates and perchlorates during electro-disinfection with diamond anodes?

Author:
Isidro, J.; Brackemeyer, D.; Sáez, C.; Llanos, J.; Lobato, J.; Cañizares, P.; Matthée, T.; Rodrigo, M.A.
Source:
Journal of environmental management 2020 v.265 pp. 110566
ISSN:
0301-4797
Subject:
coatings,   etc   ; anodes; cathodes; chlorates; disinfection; electrolysis; electrolytes; perchlorates; Germany;     Show all 9 Subjects
Abstract:
... This work focuses on disinfection of water using electrolysis with diamond coatings avoiding or minimizing the formation of hazardous chlorates and perchlorates using a special type of commercial cells designed by CONDIAS (Itzehoe, Germany) in two different sizes: the CabECO and the MIKROZON cells. In these cells, the electrolyte that separates the anode and cathode is a proton exchange membrane. ...
DOI:
10.1016/j.jenvman.2020.110566