The hexagonal boron nitride (h-BN) nanosheets have been used as nanofillers to improve the barrier properties of waterborne epoxy (WEP) coatings. However, h-BN tend agglomerate, which limits their anticorrosion applications. In this paper, h-BN/polyaniline (h-BN/PANI) nanocomposites were prepared by in situ polymerization aniline on surfaces nanosheets, further performance WEP structures as-prepared h-BN/PANI investigated scanning electron microscopy, transmission Fourier transform infrared...

The corrosion resistance of the waterborne epoxy coating is poor during long-term service, which greatly limits its widespread application. In this paper, halloysite nanotubes (HNTs) were modified by polyaniline (PANI) and then used as nanocontainers to encapsulate green inhibitor praseodymium (III) cations (Pr3+), obtaining HNTs@PANI@Pr3+ nanoparticles. A scanning electron microscope, transmission microscopy, energy dispersive spectroscopy, Fourier transform infrared X-ray diffraction,...

Superhydrophobic coatings have received considerable attention owing to their potential applications. There has been an increasing demand for the construction of durable superhydrophobic using cost-effective and fluorine-free chemicals. Herein, we developed a simple, universal, eco-friendly approach fabricate coatings. The as-prepared coating was composed synthesized hexadecyltrimethoxysilane-modified SiO2 nanoparticle-coated halloysite nanotubes (HDTMS-HNTs/SiO2) commercial water-based...

Porous scaffolds with graded pores are crucial to osteochondral regeneration. In this study, a technique combining solution casting gelatin-microsphere template leaching has been developed produce poly(L-lactide-co-glycolide) (PLGA) pores. The traditional emulsification and solvent extraction method was improved by using the gradient ethanol/water solutions extract water prepare gelatin microspheres smooth surface without use of any surfactant. Gelatin different diameters were in sequence...

The fabrication of dense conductive patterns was achieved by low-temperature sintering 1–3 μm micron silver flakes with the help addition a small amount nanosilver particles.

The in vitro degradation performance of porous scaffolds is very important tissue engineering, especially the scaffold implanted environment imitating repaired tissue. In this paper, effect cyclic loading on poly(L-lactide-co-glycolide) (PLGA) was studied by incubating samples phosphate-buffered saline at 37 degrees C and pH 7.4 under dynamic conditions (cyclic loading) static (shaking water bath) for 12 weeks. results showed earlier morphological variations faster reduction mass, dimensions...

Abstract Localized dual‐drug delivery from biodegradable scaffolds is an important strategy in tissue engineering. In this study, porous poly( L ‐lactide‐ co ‐glycolide) (PLGA)/β‐tricalcium phosphate containing both dexamethasone (Dex) and bovine serum albumin (BSA) were prepared by incorporating Dex‐loaded BSA‐loaded microspheres into the scaffolds. PLGA Dex or BSA spray‐drying double emulsion/solvent evaporation, respectively. vitro release studies indicated that 3:1 molar ratio of...

Abstract Fibrous gelatin scaffolds fabricated via electrospinning followed by crosslinking were used as substrates for apatite mineralization. Gelatin macromolecules confined their fibers and further restricted the crosslinked structure while proper flexibility could be attained upon hydration. After 4 or 5 days of mineralization, partially carbonated hydroxyapatite was proved to deposit uniformly on surface fibers. The property substrate, such stiffness chain, changed different ways....

Abstract Organic coatings are prone to failure due diffusion of the corrosion media toward metal surface through microcracks caused by internal and environmental stresses especially in immersion environment. In order extend service lifetime organic coatings, we developed a self‐curing epoxy resin/perfluorooctyl triethoxysilane (POTS)‐loaded mesoporous silica nanoparticles (MSNs) nanocomposite (SEP/POTS‐MSNs) coating, embedding POTS‐loaded MSNs (POTS‐MSNs) into an SEP resin. Fourier transform...

Osteoblasts were cultured on porous scaffolds of poly(L-lactide-co-glycolide) (PLGA) and PLGA/β-tricalcium phosphate (β-TCP) to evaluate their cytocompatibility. The proliferation the cells both was examined before after in vitro degradation for 4, 8 12 weeks under static (shaking water bath) dynamic (cyclic loading) conditions. Results indicate that PLGA PLGA/β-TCP have good biocompatibility can be used as effective templates guiding growth osteoblasts. affects osteoblasts cell viability...

Abstract Because of the great effect mechanical loads on degradation biodegradable biomaterials, investigation electrospun membranes under dynamic loading is importance. In this article, poly( L ‐lactide) (PLLA) was carried out in a Tris‐HCl buffer solution containing proteinase K cyclic stretch (dynamic condition) comparison with that shaking water bath (static condition). The evolutions mass loss, morphology, thermal properties, and relative molecular weight PLLA were monitored during...

Functional gradient scaffolds play an important role in interface-tissue engineering, because of the gradual transition both physical and chemical properties interface tissues such as bone–cartilage, bone–ligament, bone–tendon. In this study, a poly(l-lactide-co-glycolide) fibre–microsphere membrane with continuous-gradient bone morphogenic protein-2 (BMP-2) distribution was developed by combined technique electrospinning electrospraying. The had ‘sandwich’ structure, which electrosprayed...

Abstract Eco‐friendly, easy, fast and scalable strategies for robust superhydrophobic coatings are of great significance industrial application. Herein, a fluorine‐free coating is prepared via spraying the mixed suspension which consist silica nanoparticles hydrophobic acid‐catalyzed sol. The adhesive synthesized through hydrolyzation condensation silane precursors (TEOS, MTMS, HDTMS) shows good compatibility with nanoparticles. When mass ratio SiO 2 /adhesive was 0.025 : 1, exhibited...

Urushiol derivatives have vast potentials for using as coating materials. However, the cured coatings are quite brittle, limiting their applications. In this study, urushiol-furfural (UFUR) was chosen an example of urushiol and a liquid crystal (LC) epoxy resin, tetramethylbiphenyl diglycidyl ether (TMBPDE), first time utilized to modify UFUR. Fourier transform infrared spectroscopy solid-state 13 C nuclear magnetic resonance showed reactions between TMBPDE UFUR after UFUR/TMBPDE composite...