The long-term failure of seemingly intact corrosion resistant organic coatings is thought to occur via the development of ionic transport channels, which spontaneously evolve from hydrophilic regions on immersion, i.e., as a result of localized water uptake. To this end, we investigate water uptake characteristics for industrial epoxy-phenolic can coatings after immersion in deionized water and drying. Moisture sorption and the changing nature of polymer-water interactions are assessed using FTIR for dry and pre-soaked films. More water is found to be absorbed by the pre-soaked coatings on exposure to a humid environment, with a greater degree of hydrogen-bonding between the polymer and water. Furthermore, morphological changes are then correlated to localized water uptake using the AFM-IR technique. Nanoscale softened regions develop on soaking, and these are found to absorb a greater proportion of water from a humid environment.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c4fd00229f | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effects of Aqua-Glycerol Uptake Facilitator Protein GlpF on Spore Germination of .
Foods
February 2025
College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing 100083, China.
Killing spores is an important challenge for the development of the food industry. After germination, the resistance of spores disappears and they are more easily killed, which is currently the main strategy for their destruction. Therefore, study of the mechanism of spore germination is of great significance for improving methods of spore inactivation.
View Article and Find Full Text PDFOn the Structural and Biological Effects of Hydroxyapatite and Gold Nano-Scale Particles in Poly(Vinylidene Fluoride) Smart Scaffolds for Bone and Neural Tissue Engineering.
Molecules
February 2025
Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5B, 02-106 Warsaw, Poland.
Piezoelectric materials, due to their ability to generate an electric charge in response to mechanical deformation, are becoming increasingly attractive in the engineering of bone and neural tissues. This manuscript reports the effects of the addition of nanohydroxyapatite (nHA), introduction of gold nanoparticles (AuNPs) via sonochemical coating, and collector rotation speed on the formation of electroactive phases and biological properties in electrospun nanofiber scaffolds consisting of poly(vinylidene fluoride) (PVDF). FTIR, WAXS, DSC, and SEM results indicate that introduction of nHA increases the content of electroactive phases and fiber alignment.
View Article and Find Full Text PDFExploration of scientific connotation of "Yin-Jing" medical properties of Cyathula Officinalis via potentiating therapeutic effect, guidance and targetability.
J Ethnopharmacol
March 2025
Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, 24 Heping Road, Harbin 150040, China. Electronic address:
Unlabelled: ETHNIC PHARMACOLOGICAL RELEVANCE: "Cyathula officinalis Kuan (COK)" has the effect of "guiding the drug downward" and can enhance the efficacy of formula, e.g., Shentong Zhuyu Decoction (STZYD).
View Article and Find Full Text PDFRandall Foils Versus Big Blades: Comparative Analysis in On-Water Sprint Rowing.
Int J Sports Physiol Perform
March 2025
Center of Research, Education, Innovation and Intervention in Sport, Faculty of Sport, University of Porto, Porto, Portugal.
Purpose: We evaluated the technical and energetical impact of using Randall foils versus simple Big blades during a maximum rowing effort in field conditions.
Methods: Fourteen experienced rowers (12 male and 2 female) 26 (9) versus 25 (9) years of age, 179.8 (4.
Phase Change-Mediated Capture of Carbon Dioxide from Air with a Molecular Triamine Network Solid.
J Am Chem Soc
March 2025
Institute for Decarbonization Materials, University of California, Berkeley, California 94720, United States.
The efficient removal of CO from exhaust streams and even directly from air is necessary to forestall climate change, lending urgency to the search for new materials that can rapidly capture CO at high capacity. The recent discovery that diamine-appended metal-organic frameworks can exhibit cooperative CO uptake via the formation of ammonium carbamate chains begs the question of whether simple organic polyamine molecules could be designed to achieve a similar switch-like behavior with even higher separation capacities. Here, we present a solid molecular triamine, 1,3,5-tris(aminomethyl)benzene (TriH), that rapidly captures large quantities of CO upon exposure to humid air to form the porous, crystalline, ammonium carbamate network solid TriH(CO)·HO (TriHCO).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!