Cross-Linked Fluoroalkyl End-Capped Co-Oligomeric Nanoparticle-Encapsulated FullereneA New Approach to the Surface Modification of Traditional Organic Polymers with Fullerene-Containing Nanoparticles

Langmuir ◽  
2009 ◽  
Vol 25 (1) ◽  
pp. 415-421 ◽  
Author(s):  
Masaki Mugisawa ◽  
Remi Kasai ◽  
Hideo Sawada
2007 ◽  
Vol 280-283 ◽  
pp. 1805-1806
Author(s):  
Zhi Jun Cao ◽  
Jia Chen Liu ◽  
Li Bin Liu ◽  
Hao Ye ◽  
Yan Qiu Wei

A new approach was developed for surface modification of metallic surface. By treating nano-zirconia particles and metal surface in different charge state, nano-zirconia particles can be dispersedly inlaid in metal surface owing to electrostatic and nanometer effects. By using this method, metal components of complex shapes, especially those having inside surfaces, might be easily improved, i.e., enhanced surface hardness and wear rate.


2020 ◽  
Vol 383 ◽  
pp. 125285 ◽  
Author(s):  
Ana Ferrandez-Montero ◽  
Marcela Lieblich ◽  
Rosario Benavente ◽  
José Luis González-Carrasco ◽  
Begoña Ferrari

2008 ◽  
Vol 84A (3) ◽  
pp. 672-681 ◽  
Author(s):  
Ananthu Sateesh ◽  
Jürgen Vogel ◽  
Evelyn Dayss ◽  
Beate Fricke ◽  
Karin Dölling ◽  
...  

2012 ◽  
Vol 229-231 ◽  
pp. 2745-2748 ◽  
Author(s):  
Paveenuch Kittitheeranun ◽  
Stephan Thierry Dubas ◽  
Luxsana Dubas

A new method for the surface modification of the surface of fruits based on the Layer-by-Layer (LbL) deposition of polyelectrolyte multilayers (PEM) is presented. Mangoes fruits were coated by sequential dipping in solutions of either Poly(diallyldimethylammonium chloride), (PDADMAC) or Poly(styrene sulfonate sodium salt) (PSS). After the deposition of only few polyelectrolyte layers, the skin of the fruits was changed from hydrophobic to hydrophilic as shown by contact angles measurements decreasing from 90 to 10. Fourier transform infrared spectroscopy (FTIR) was used to confirm the deposition of the PEM coating on the fruit which was then used as a matrix to load curcumin as model compound. Ultraviolet Visible (UV-Vis) spectroscopy was used to evaluate the amount of a curcumin loaded on the fruit surface as a function of the thickness of the film by indirect leaching in ethanol. This coating method provides a new approach to dope active compound on the fruit surface such as anti-oxidant, fragrance, color and other nutriment which could increase the market value of fruits.


Materials ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1278 ◽  
Author(s):  
Ioannis G. Papantoniou ◽  
Angelos P. Markopoulos ◽  
Dimitrios E. Manolakos

In the current study, a new approach for surface modification and surface hardening of aluminum alloys is developed. The method is based on the logic of in-situ reinforcing FSP strategies. The novelty of the proposed process is the application of a bulk reinforcing metallic material instead of metallic powders. The FSP was carried out on aluminum alloy AA5083—thick plates. A thin sheet of pure copper (cross-section 4 × 0.8 mm2) was placed in a machined groove on the upper surface of the aluminum plate, and both materials were FSPed together. Samples with one, two and three FSP passes were manufactured respectively. Results indicate that the copper thin sheet was successfully integrated in the AA5083 stir zone. By increasing the FSP passes, almost all copper was integrated in the stir zone, mainly in the form of coper-based micron-sized intermetallic particles, and secondly, by copper diffusion in the AA5083 matrix. Due to the presence of complex intermetallic compounds created by the high heat input and intense plastic deformation, the hardness inside the stir-zone was found highly increased from 77 to 138 HV.


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