U.S. flag

An official website of the United States government

PubAg

Main content area

You searched for: Subject "coatings" Remove constraint Subject: "coatings"
Start Over

Search

24,061  Search Results

« Previous | 1 - 20 of 24,061 |
Number of results to display per page

Search Results

1. 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 2021 v.120 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

2. Molecular Ordering Behavior of Lyotropic Chromonic Liquid Crystals on a Polyimide Alignment Layer

Author:
Kim, Hyeong Wook; Won, Sang Hee; Kuzmin, Valery; Kim, Bo Sung; Shin, Sung Tae
Source:
Langmuir 2020 v.36 no.21 pp. 5778-5786
ISSN:
1520-5827
Subject:
coatings,   etc   ; anisotropy; liquid crystals;     Show all 3 Subjects
Abstract:
... Coating-type polarizing films with a high dichroic ratio (DR) and polarization efficiency in the visible region were fabricated using a solution of ternary lyotropic chromonic liquid crystals (LCLCs). Optical characteristics of these anisotropic LCLC polarizing films were then determined. DR increased with increasing LCLC concentrations. Molecular ordering of these LCLCs on a rubbed polyimide (PI) ...
DOI:
10.1021/acs.langmuir.0c00486

3. Nanoparticle coatings for stir bar sorptive extraction, synthesis, characterization and application

Author:
Hashemi, Sayyed Hossein; Kaykhaii, Massoud
Source:
Talanta 2021 v.221 pp. 121568
ISSN:
0039-9140
Subject:
coatings,   etc   ; graphene; literature; methodology; microextraction; nanoparticles; sorption; synthesis;     Show all 8 Subjects
Abstract:
... During the last ten years, number of articles published on synthesis and applications of nano-particles (NPs) have been increased by a factor of 40. One of the most interesting applications of NPs is their using as high capacity, robust and highly selective coatings for stir bar sorption extraction (SBSE). Utilizing NPs greatly promoted applications of SBSE and has gained importance on green sampl ...
DOI:
10.1016/j.talanta.2020.121568

4. Enhancing H2-permselectivity of high-flux hollow fiber membrane via in-situ layer-by-layer surface treatment

Author:
Mishra, Naveen K.; Patil, Nutan; Long, Carolyn; Yi, Shouliang; Hopkinson, David; Grunlan, Jaime C.; Wilhite, Benjamin A.
Source:
Journal of membrane science 2020 v.615 pp. 118312
ISSN:
0376-7388
Subject:
coatings,   etc   ; artificial membranes; hydrogen; nitrogen;     Show all 4 Subjects
Abstract:
... This manuscript presents the first application of a layer-by-layer (LbL) permselective all-polymer coating to a Torlon© polyamide imide (PAI) hollow fiber substrate to realize a new class of manufacturable, highly selective, composite polymer membrane for hydrogen separation from carbon dioxide and nitrogen light gases. Sub-micron, defect-free conformal coatings of [PEI₁₀/PAA₄] polymeric pair were ...
DOI:
10.1016/j.memsci.2020.118312

5. 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

6. In situ biomineralization-constructed superhydrophilic and underwater superoleophobic PVDF-TiO2 membranes for superior antifouling separation of oil-in-water emulsions

Author:
Deng, Wei; Fan, Tianzhu; Li, Ying
Source:
Journal of membrane science 2021 v.622 pp. 119030
ISSN:
0376-7388
Subject:
coatings,   etc   ; adhesion; biomineralization; emulsions; filtration; fouling; hydrophilicity; nanoparticles; oils; porosity; separation; surfaces;     Show all 12 Subjects
Abstract:
... In situ construction has emerged for fabricating superwetting PVDF membranes with uniform organic coatings and improved resistance to oil fouling, but it remains almost unexplored to apply this strategy to attain durable inorganic coatings and prepare superior antifouling PVDF membranes. Herein, we developed a novel in situ biomineralization method to fabricate superhydrophilic and underwater supe ...
DOI:
10.1016/j.memsci.2020.119030

7. Integrated co-pyrolysis and coating for the synthesis of a new coated biochar-based fertilizer with enhanced slow-release performance

Author:
An, Xiongfang; Wu, Zhansheng; Qin, Huihua; Liu, Xuan; He, Yanhui; Xu, Xiaolin; Li, Tao; Yu, Bing
Source:
Journal of cleaner production 2021 v.283 pp. 124642
ISSN:
0959-6526
Subject:
coatings,   etc   ; bentonite; biomass; cotton; feedstocks; nutrients; pepper; pyrolysis; seedlings; slow-release fertilizers; straw;     Show all 11 Subjects
Abstract:
... Although biochar-based fertilizers prepared by the co-pyrolysis of biomass and other nutrients containing feedstocks have been extensively demonstrated to be promising slow-release fertilizers, a further improvement of their slow-release performance is still highly required. Here, new coated biochar-based slow-release fertilizers (CSRFs) by the integrated co-pyrolysis and coating technology. The r ...
DOI:
10.1016/j.jclepro.2020.124642

8. Microstructure and cavitation erosion behavior of HVOF sprayed ceramic-metal composite coatings for application in hydro-turbines

Author:
Hong, Sheng; Wu, Yuping; Wu, Jianhua; Zhang, Yuquan; Zheng, Yuan; Li, Jiahui; Lin, Jinran
Source:
Renewable energy 2021 v.164 pp. 1089-1099
ISSN:
0960-1481
Subject:
coatings,   etc   ; blades; brittleness; chromium; microstructure; porosity; renewable energy sources; spraying; steel; turbines;     Show all 10 Subjects
Abstract:
... Cavitation erosion commonly occurs in hydro-turbine blades and has been a crucial issue for operation of hydro-turbines. In this paper, high-velocity oxygen-fuel (HVOF) spraying was applied to produce Cr₃C₂–NiCr and WC-CoCr ceramic-metal coatings. The microstructure and the relationship between the flow velocity and cavitation erosion behavior of the coatings were evaluated, and their cavitation e ...
DOI:
10.1016/j.renene.2020.08.099

9. Tunable design of yolk-shell ZnFe2O4@C composites for enhancing electromagnetic wave absorption

Author:
Li, Huaqiong; Hou, Yanhui; Li, Liangchao
Source:
Powder technology 2021 v.378 pp. 216-226
ISSN:
0032-5910
Subject:
coatings,   etc   ; chemical etching; composite materials; electromagnetic radiation; ferrimagnetic materials; microparticles; nanomaterials; silica; zinc compounds;     Show all 9 Subjects
Abstract:
... This study shows a simple, layer-by-layer coating process and low-temperature chemical etching method for selective preparation of yolk-shell ZnFe₂O₄@C composites by using SiO₂ as the template. Compared with core-shell ZnFe₂O₄@SiO₂@C, the yolk-shell ZnFe₂O₄@C microspheres exhibited significantly enhanced electromagnetic wave (EMW) absorption performance in terms of effective bandwidth, coating thi ...
DOI:
10.1016/j.powtec.2020.09.025

10. Development of a nanostructured film based on samarium (III)/polydopamine on the steel surface with superior anti-corrosion and water-repellency properties

Author:
Bahremand, Farshad; Shahrabi, Taghi; Ramezanzadeh, Bahram
Source:
Journal of colloid and interface science 2021 v.582 pp. 342-352
ISSN:
0021-9797
Subject:
coatings,   etc   ; biopolymers; contact angle; copper sulfate; corrosion; dielectric spectroscopy; hydrophobicity; nanoparticles; nitrates; oxidants; samarium; steel;     Show all 12 Subjects
Abstract:
... The application of various hydrophobic/superhydrophobic coatings on the surface of metals has become the hot topic of the recent studies. The corrosion protection effectiveness and environmental issues are two important factors that should be taken into consideration when developing advanced surface coatings. Recently, the rare-earth elements (i.e., samarium) and biopolymers (i.e., polydopamine) h ...
DOI:
10.1016/j.jcis.2020.08.039

11. Film thickness limits of a buckling-based method to determine mechanical properties of polymer coatings

Author:
Niinivaara, Elina; Desmaisons, Johanna; Dufresne, Alain; Bras, Julien; Cranston, Emily D.
Source:
Journal of colloid and interface science 2021 v.582 pp. 227-235
ISSN:
0021-9797
Subject:
coatings,   etc   ; equipment; mechanical properties; models; modulus of elasticity; polyvinyl alcohol; wavelengths;     Show all 7 Subjects
Abstract:
... Characterizing the mechanical properties of polymer coatings typically requires access to specialty equipment, the analysis through which can be tedious despite instrumental precision. An alternative method reported in the literature,strain-induced elastic buckling instability for mechanical measurements (SIEBIMM), is a high throughput, facile yet accurate method, used to characterize the Young’s ...
DOI:
10.1016/j.jcis.2020.08.025

12. Sacrificial graphene oxide interlayer for highly permeable ceramic thin film composite membranes

Author:
Cho, Young Hoon; Jeong, Seongmin; Kim, Seong-Joong; Kim, Yeojin; Lee, Hong Joo; Lee, Tae Hoon; Park, Ho Bum; Park, Hosik; Nam, Seung-Eun; Park, You-In
Source:
Journal of membrane science 2021 v.618 pp. 118442
ISSN:
0376-7388
Subject:
coatings,   etc   ; aluminum oxide; boehmite; ceramics; cost effectiveness; graphene oxide; nanoparticles; porosity; thin film composite membranes; ultrafiltration;     Show all 10 Subjects
Abstract:
... In this study, we report a facile and straightforward graphene oxide pre-coating method to prepare defect-free, ultrathin film composite ceramic hollow fiber membranes. By coating a graphene oxide (GO) interlayer, the defect-free thin alumina active layer with sub-micrometer thicknesses was successfully coated on highly porous substrates without thick interlayers. The GO interlayer not only preven ...
DOI:
10.1016/j.memsci.2020.118442

13. Strong and thermostable hydrothermal carbon coated 3D needled carbon fiber reinforced silicon-boron carbonitride composites with broadband and tunable high-performance microwave absorption

Author:
Yang, Lingyu; Yin, Lianhua; Hong, Changqing; Dong, Shun; Liu, Chen; Zhang, Xinghong
Source:
Journal of colloid and interface science 2021 v.582 pp. 270-282
ISSN:
0021-9797
Subject:
coatings,   etc   ; air; carbon; carbon fibers; compression strength; electromagnetic radiation; glucose; mechanical properties; oxidation; pyrolysis; thermal stability;     Show all 11 Subjects
Abstract:
... Excellent electromagnetic wave (EMW) absorbing materials with high-temperature stable and superior mechanical properties are among the most promising candidates for practical application. Here, novel hydrothermal carbon coated three-dimensional (3D) needled carbon fiber reinforced silicon-boron carbonitride (HC-CF/SiBCN) composites with a hierarchical A (CF)/B (HC)/C (SiBCN) structure were constru ...
DOI:
10.1016/j.jcis.2020.08.030

14. Ta2O5-incorporated in photoinduced electrocatalyst of TiO2-RuO2 decorated by PPy-NrGO nanocomposite for boosting overall water splitting

Author:
Rasouli, Haleh; Hosseini, Mir Ghasem; Hosseini, Mir Majid
Source:
Journal of colloid and interface science 2021 v.582 pp. 254-269
ISSN:
0021-9797
Subject:
coatings,   etc   ; catalysts; electric current; electrochemistry; electrolytes; electroplating; graphene oxide; hydrogen; nanocomposites; oxygen; photoelectrodes; pyrroles; titanium;     Show all 13 Subjects
Abstract:
... In the current work, the heterostructures highly PEC activity photoelectrodes composed of mixed metal oxides (TiO₂-RuO₂-Ta₂O₅ (TRT)), polypyrrole- N doped reduced graphene oxide (PPy-NrGO) were prepared by electrodeposition of PPy-NrGO films on the TRT- coated titanium (Ti) plates as substrates. The TRT coatings were deposited on Ti plates via the sol-gel technique. The effects of the Ta₂O₅ molar ...
DOI:
10.1016/j.jcis.2020.08.028

15. Hyaluronate siRNA nanoparticles with positive charge display rapid attachment to tumor endothelium and penetration into tumors

Author:
Luo, Jie; Schmaus, Johannes; Cui, Mochen; Hörterer, Elisa; Wilk, Ulrich; Höhn, Miriam; Däther, Maike; Berger, Simone; Benli-Hoppe, Teoman; Peng, Lun; Wagner, Ernst
Source:
Journal of controlled release 2021 v.329 pp. 919-933
ISSN:
0168-3659
Subject:
coatings,   etc   ; endothelium; gene silencing; hyaluronic acid; intravenous injection; mice; models; nanoparticles; neoplasms; small interfering RNA;     Show all 10 Subjects
Abstract:
... A cationizable sequence-defined lipo-oligoaminoamide (lipo-OAA) conferring stable assembly of siRNA into ~200 nm sized complexes contains an N-terminal azidolysine for covalent coating of formed nanoparticles with dibenzocyclooctyne-amine (DBCO)-modified hyaluronic acid (HA). Depending on the applied equivalents of DBCO-HA, stable nanoparticles with either cationic or anionic surface charge can be ...
DOI:
10.1016/j.jconrel.2020.10.022

16. Phenomenological based model for the prediction of the structural changes during chocolate conching process

Author:
González, Camila; Acosta, Elly V.; Mazo Rivas, Juan Camilo; Muñoz, Diego A.
Source:
Journal of food engineering 2021 v.289 pp. 110184
ISSN:
0260-8774
Subject:
coatings,   etc   ; chocolate; conching; extrusion; liquids; manufacturing; models; plastics; prediction; rheometers; sensory properties; viscosity;     Show all 12 Subjects
Abstract:
... The conching process is a crucial stage in chocolate manufacturing involving the development of sensory attributes and rheological properties of the product in three phases: dry, plastic, and liquid. This research creates a Phenomenological Based Semi-Physical Model for predicting the chocolate structural changes during conching process. The model was constructed by applying the methodology propos ...
DOI:
10.1016/j.jfoodeng.2020.110184

17. Blowspinning: A New Choice for Nanofibers

Author:
Song, Jianan; Li, Ziwei; Wu, Hui
Source:
ACS applied materials & interfaces 2020 v.12 no.30 pp. 33447-33464
ISSN:
1944-8252
Subject:
coatings,   etc   ; empirical research; equipment; nanofibers; spinning;     Show all 5 Subjects
Abstract:
... Blowspinning is a new technique that enables the large-scale production of fibers with diameters ranging from micrometer to nanometer, which is more like a combination of melt-blown and electrospinning but has its own characteristics. This method can be used to deposit fibers in situ and produce various fibrous materials, such as coating, nonwoven, and sponge. These characteristics provide a new s ...
DOI:
10.1021/acsami.0c05740

18. 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

19. 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

20. 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