Poly(AAc-co-MBA) Hydrogel Films: Adhesive and Mechanical Properties in Aqueous Medium

2012 ◽  
Vol 117 (1) ◽  
pp. 441-449 ◽  
Author(s):  
Dhamodaran Arunbabu ◽  
Hamed Shahsavan ◽  
Wei Zhang ◽  
Boxin Zhao
Keyword(s):  
Mechanical Properties ◽  
Aqueous Medium ◽  
Hydrogel Films

Counterion Effect on the Morphological and Mechanical Properties of Polymer−Clay Nanocomposites Prepared in an Aqueous Medium

2007 ◽  
Vol 19 (13) ◽  
pp. 3334-3342 ◽  
Author(s):  
Fábio do Carmo Bragança ◽  
Leonardo Fonseca Valadares ◽  
Carlos Alberto de Paula Leite ◽  
Fernando Galembeck
Keyword(s):  
Mechanical Properties ◽  
Aqueous Medium ◽  
Clay Nanocomposites ◽  
Counterion Effect

Effect of treatments in an aqueous medium on the structure and mechanical properties of polycaproamide fibers

1976 ◽  
Vol 11 (1) ◽  
pp. 119-121 ◽  
Author(s):  
A. P. Lisitsyn ◽  
G. D. Litovchenko ◽  
V. Ya. Efremov ◽  
N. V. Mikhailov
Keyword(s):  
Mechanical Properties ◽  
Aqueous Medium

scholarly journals Physical-mechanical Properties of Metal-filled Hydrogel Films, Obtained by Centrifugal Molding

2019 ◽  
Vol 23 (3) ◽  
pp. 18-23
Author(s):  
Oleksandr Grytsenko ◽  
Oleh Suberlyak ◽  
Volodymyr Krasinskyi ◽  
Volodymyr Moravskyi ◽  
Bohdan Berezhnyy
Keyword(s):  
Mechanical Properties ◽  
Centrifugal Molding ◽  
Hydrogel Films

Improvement of Electrical and Mechanical Properties of Inkjet-Printed Ag Tracks by Adding SiO2 to High Loading Ag Inks

2012 ◽  
Vol 590 ◽  
pp. 216-221
Author(s):  
A. Kosmala ◽  
Q. Zhang ◽  
R. Wright ◽  
P. Kirby
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
Aqueous Medium ◽  
Inkjet Printing ◽  
Ag Nanoparticles ◽  
Sio2 Nanoparticles ◽  
Pluronic F127 ◽  
High Loading ◽  
Silver Films ◽  
Sintered Silver

Monodispersed Ag nanoparticles with sizes down to 10 nm were synthesised in an aqueous medium. These nanoparticles were then successfully dispersesd up to 45 wt% in aqueous medium with the aid of a copolymer, Pluronic F127. SiO2 nanoparticles were added to the ink formula in order to improve the physical properties of the ink after inkjet printing. The effect of the different SiO2 concentrations in the ink on the adhesion, resistivity and microstructure of the film at several sintered temperatures was investigated. The percentage of the SiO2 added in the ink was responsible for the development of microstructure for the sintered silver films and improving adhesion of the films to the substrate. The addition of SiO2 had also significant effect on improving the conductivity of the films. The conductivity is, though, better when only a small amount of SiO2 was added.

scholarly journals Effect of Silica Nanoparticles Blocked with Epoxy Groups on the Crosslinking and Surface Properties of PEG Hydrogel Films

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3296
Author(s):  
Junyoung Park ◽  
Nahee Kim ◽  
Kevin Injoe Jung ◽  
Soomin Yoon ◽  
Seung Man Noh ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Silica Nanoparticles ◽  
Surface Properties ◽  
Surface Hardness ◽  
Film Surface ◽  
Film Coating ◽  
Poly Ethylene ◽  
Scratch Tests ◽  
Epoxy Groups ◽  
Hydrogel Films

Silica nanoparticles (G-SiNPs) blocked with 3-glycidoxypropyl trimethoxysilane (GPTS) were newly applied to hydrogel films for improving film coating properties and to distribute the epoxy groups on the film surface. The effects of the content of epoxy-functionalized G-SiNPs on the crosslinking features by photo-induced radical polymerization and the surface mechanical properties of the hydrogel films containing poly(ethylene glycol) dimethacrylate (PEGDMA) and glycidyl methacrylate (GMA) were investigated. The real-time elastic modulus of various PEG hydrogel mixtures with prepared particles was monitored using a rotational rheometer. The distribution of epoxy groups on the crosslinked film surface was directly and indirectly estimated by the elemental analysis of Si and Br. The surface mechanical properties of various hydrogel films were measured by nano-indentation and nano-scratch tests. The relationship between the rheological and surface properties of PEG-based hydrogel films suggests that the use of small amounts of G-SiNPs enhances the surface hardness and crosslinked network of the film and uniformly distributes sufficient epoxy groups on the film surface for further coating applications.

Phase Transformations in Ti-7w/oMo-3w/oMe Alloy

1974 ◽  
Vol 32 ◽  
pp. 514-515
Author(s):  
S. Fujishiro
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Transmission Electron Microscopy ◽  
Tensile Strength ◽  
Mechanical Processing ◽  
Ray Method ◽  
X Ray ◽  
Transmission Electron ◽  
Water Quench ◽  
Alpha Beta

The mechanical properties of three titanium alloys (Ti-7Mo-3Al, Ti-7Mo- 3Cu and Ti-7Mo-3Ta) were evaluated as function of: 1) Solutionizing in the beta field and aging, 2) Thermal Mechanical Processing in the beta field and aging, 3) Solutionizing in the alpha + beta field and aging. The samples were isothermally aged in the temperature range 300° to 700*C for 4 to 24 hours, followed by a water quench. Transmission electron microscopy and X-ray method were used to identify the phase formed. All three alloys solutionized at 1050°C (beta field) transformed to martensitic alpha (alpha prime) upon being water quenched. Despite this heavily strained alpha prime, which is characterized by microtwins the tensile strength of the as-quenched alloys is relatively low and the elongation is as high as 30%.

Effects of cooling rate on the mechanical properties of dual phase treated vanadium steels

1983 ◽  
Vol 41 ◽  
pp. 220-221
Author(s):  
L.J. Chen ◽  
H.C. Cheng ◽  
J.R. Gong ◽  
J.G. Yang
Keyword(s):  
Mechanical Properties ◽  
Cooling Rate ◽  
Automobile Industry ◽  
High Strength ◽  
Weight Percent ◽  
Low Alloy Steels ◽  
Dual Phase ◽  
Resource Requirement ◽  
Alloy Steels ◽  
Potential Weight

For fuel savings as well as energy and resource requirement, high strength low alloy steels (HSLA) are of particular interest to automobile industry because of the potential weight reduction which can be achieved by using thinner section of these steels to carry the same load and thus to improve the fuel mileage. Dual phase treatment has been utilized to obtain superior strength and ductility combinations compared to the HSLA of identical composition. Recently, cooling rate following heat treatment was found to be important to the tensile properties of the dual phase steels. In this paper, we report the results of the investigation of cooling rate on the microstructures and mechanical properties of several vanadium HSLA steels.The steels with composition (in weight percent) listed below were supplied by China Steel Corporation: 1. low V steel (0.11C, 0.65Si, 1.63Mn, 0.015P, 0.008S, 0.084Aℓ, 0.004V), 2. 0.059V steel (0.13C, 0.62S1, 1.59Mn, 0.012P, 0.008S, 0.065Aℓ, 0.059V), 3. 0.10V steel (0.11C, 0.58Si, 1.58Mn, 0.017P, 0.008S, 0.068Aℓ, 0.10V).

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