Improvement of Interfacial Adhesion of Biodegradable Polymers Coated on Metal Surface by Nanocoupling

Langmuir ◽  
2011 ◽  
Vol 27 (23) ◽  
pp. 14232-14239 ◽  
Author(s):  
Jiyeon Choi ◽  
Seong Bae Cho ◽  
Bong Soo Lee ◽  
Yoon Ki Joung ◽  
Kwideok Park ◽  
...  
Keyword(s):  
Metal Surface ◽  
Biodegradable Polymers ◽  
Interfacial Adhesion

Metal Surface Nanopatterning for Enhanced Interfacial Adhesion in Fiber Metal Laminates

2021 ◽  
pp. 108651
Author(s):  
Jing Ye ◽  
Huan Wang ◽  
Jiale Dong ◽  
Cheng Liu ◽  
Yan Gao ◽  
...  
Keyword(s):  
Metal Surface ◽  
Interfacial Adhesion ◽  
Fiber Metal Laminates ◽  
Fiber Metal

Effects of vibration parameters on the interfacial adhesion system between soil and metal surface

2022 ◽  
Vol 218 ◽  
pp. 105294
Author(s):  
Guoyang Liu ◽  
Junfang Xia ◽  
Kan Zheng ◽  
Jian Cheng ◽  
Kaixuan Wang ◽  
...  
Keyword(s):  
Metal Surface ◽  
Interfacial Adhesion ◽  
Adhesion System ◽  
Vibration Parameters

scholarly journals Fabrication of Biodegradable Polyester Nanocomposites by Electrospinning for Tissue Engineering

2011 ◽  
Vol 2011 ◽  
pp. 1-18 ◽  
Author(s):  
Zhi-Cai Xing ◽  
Seung-Jin Han ◽  
Yong-Suk Shin ◽  
Inn-Kyu Kang
Keyword(s):  
Tissue Engineering ◽  
Extracellular Matrix ◽  
Biodegradable Polymers ◽  
Functional Properties ◽  
Interfacial Adhesion ◽  
Synthetic Polymers ◽  
Biodegradable Polyester ◽  
Tissue Engineering Scaffolds ◽  
Structural And Functional Properties ◽  
Enhanced Properties

Recently, nanocomposites have emerged as an efficient strategy to upgrade the structural and functional properties of synthetic polymers. Polyesters have attracted wide attention because of their biodegradability and biocompatibility. A logic consequence has been the introduction of natural extracellular matrix (ECM) molecules, organic or inorganic nanostructures to biodegradable polymers to produce nanocomposites with enhanced properties. Consequently, the improvement of the interfacial adhesion between biodegradable polymers and natural ECM molecules or nanostructures has become the key technique in the fabrication of nanocomposites. Electrospinning has been employed extensively in the design and development of tissue engineering scaffolds to generate nanofibrous substrates of synthetic biodegradable polymers and to simulate the cellular microenvironment. In this paper, several types of biodegradable polyester nanocomposites were prepared by electrospinning, with the aim of being used as tissue engineering scaffolds. The combination of biodegradable nanofibrous polymers and natural ECM molecules or nanostructures opens new paradigms for tissue engineering applications.

Preparation of stiffer ternary blends of polypropylene/polyamide 6/biodegradable polymers with improved interfacial adhesion

2020 ◽  
Vol 138 (9) ◽  
pp. 50248
Author(s):  
Bruno de P. Amantes ◽  
Renato Jonas B. Oliveira ◽  
Maria de Fátima V. Marques
Keyword(s):  
Biodegradable Polymers ◽  
Interfacial Adhesion ◽  
Polyamide 6 ◽  
Ternary Blends

Metal Surface Coating Using Electrospray of Biodegradable Polymers and α-Lipoic Acid Release Behavior for Drug-Eluting Stents

Polymer Korea ◽  
2010 ◽  
Vol 34 (2) ◽  
pp. 178-183 ◽  
Author(s):  
Dong Min Kim ◽  
Bong Soo Lee ◽  
Cheol Ho Park ◽  
Kwi Deck Park ◽  
Tae Ll Son ◽  
...  
Keyword(s):  
Metal Surface ◽  
Biodegradable Polymers ◽  
Lipoic Acid ◽  
Surface Coating ◽  
Drug Eluting Stents ◽  
Release Behavior ◽  
Drug Eluting ◽  
Acid Release

Electrochemical nucleation and growth of copper on iron and aluminum: A TEM study of industrial copper cementation

1978 ◽  
Vol 36 (1) ◽  
pp. 454-455
Author(s):  
L.E. Murr ◽  
V. Annamalai
Keyword(s):  
Metal Surface ◽  
Copper Deposit ◽  
Nucleation And Growth ◽  
16Th Century ◽  
Electrochemical Reactions ◽  
Mine Shaft ◽  
De Re ◽  
Copper Precipitation ◽  
Electrochemical Nucleation ◽  
Interesting System

Georgius Agricola in 1556 in his classical book, “De Re Metallica”, mentioned a strange water drawn from a mine shaft near Schmölnitz in Hungary that eroded iron and turned it into copper. This precipitation (or cementation) of copper on iron was employed as a commercial technique for producing copper at the Rio Tinto Mines in Spain in the 16th Century, and it continues today to account for as much as 15 percent of the copper produced by several U.S. copper companies.In addition to the Cu/Fe system, many other similar heterogeneous, electrochemical reactions can occur where ions from solution are reduced to metal on a more electropositive metal surface. In the case of copper precipitation from solution, aluminum is also an interesting system because of economic, environmental (ecological) and energy considerations. In studies of copper cementation on aluminum as an alternative to the historical Cu/Fe system, it was noticed that the two systems (Cu/Fe and Cu/Al) were kinetically very different, and that this difference was due in large part to differences in the structure of the residual, cement-copper deposit.

Morphological behavior of compatibilized ternary blends prepared by mechanical mixing

1993 ◽  
Vol 51 ◽  
pp. 1200-1201
Author(s):  
S.D. Smith ◽  
R.J. Spontak ◽  
D.H. Melik ◽  
S.M. Buehler ◽  
K.M. Kerr ◽  
...  
Keyword(s):  
Interfacial Adhesion ◽  
Diblock Copolymers ◽  
Ternary Blends ◽  
Mechanical Mixing ◽  
Design Considerations ◽  
Covalently Bonded ◽  
Homopolymer Blends ◽  
Emulsifying Agent ◽  
Surface Active ◽  
Low Entropy

When blended together, homopolymers A and B will normally macrophase-separate into relatively large (≫1 μm) A-rich and B-rich phases, between which exists poor interfacial adhesion, due to a low entropy of mixing. The size scale of phase separation in such a blend can be reduced, and the extent of interfacial A-B contact and entanglement enhanced, via addition of an emulsifying agent such as an AB diblock copolymer. Diblock copolymers consist of a long sequence of A monomers covalently bonded to a long sequence of B monomers. These materials are surface-active and decrease interfacial tension between immiscible phases much in the same way as do small-molecule surfactants. Previous studies have clearly demonstrated the utility of block copolymers in compatibilizing homopolymer blends and enhancing blend properties such as fracture toughness. It is now recognized that optimization of emulsified ternary blends relies upon design considerations such as sufficient block penetration into a macrophase (to avoid block slip) and prevention of a copolymer multilayer at the A-B interface (to avoid intralayer failure).

Rapid Freezing of Freeze-Etch Specimens

1980 ◽  
Vol 38 ◽  
pp. 752-755
Author(s):  
A. Elgsaeter ◽  
T. Espevik ◽  
G. Kopstad
Keyword(s):  
Low Temperature ◽  
Metal Surface ◽  
Relative Velocity ◽  
Thermal Contact ◽  
High Rate ◽  
Rapid Freezing ◽  
Temperature Decrease ◽  
Freeze Etching

The importance of a high rate of temperature decrease (“rapid freezing”) when freezing specimens for freeze-etching has long been recognized1. The two basic methods for achieving rapid freezing are: 1) dropping the specimen onto a metal surface at low temperature, 2) bringing the specimen instantaneously into thermal contact with a liquid at low temperature and subsequently maintaining a high relative velocity between the liquid and the specimen. Over the last couple of years the first method has received strong renewed interest, particularily as the result of a series of important studies by Heuser and coworkers 2,3. In this paper we will compare these two freezing methods theoretically and experimentally.

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