The effect of core–shell particles on the mechanical performance of epoxy resins modified with hyperbranched polymers

2016 ◽  
Vol 31 (10) ◽  
pp. 1393-1402 ◽  
Author(s):  
Shuiping Li ◽  
Qing Lin ◽  
Chong Cui
Keyword(s):  
Epoxy Resins ◽  
Mechanical Performance ◽  
Hyperbranched Polymers ◽  
Core Shell ◽  
Shell Particles ◽  
Image Position

Abstract

Toughening Modification of PA6 with Different Core-Shell Particles

2013 ◽  
Vol 750-752 ◽  
pp. 820-823
Author(s):  
Zhen Yu Liu ◽  
Yu Zhu Xiong ◽  
Wen Jie Mei ◽  
Li Wang
Keyword(s):  
Electron Microscopy ◽  
Impact Strength ◽  
Shell Structure ◽  
Performance Test ◽  
Mechanical Performance ◽  
Core Shell ◽  
Transmission Electron ◽  
Notch Impact Strength ◽  
Core Shell Structure ◽  
Shell Particles

(POE-g-MAH/OMMT) and (POE-g-MAH/SiO2) toughening particles of core-shell structure were prepared by ball grinding method and were used to modify toughness of PA6.The morphology of PA6 modified by these core-shell particles were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM),and were detected by mechanical performance test. The results show that both toughening particles could improved notch impact strength of PA6,and with toughening particle exceed 10%, composites notch impact strength is rapid increase.(POE-g-MAH/OMMT) particle of PA6 toughening effect is better than (POE-g-MAH/SiO2).When material under impact, OMMT produced slip effect in core-shell structure and SiO2 produced rolling effect.

Core-shell particles with an acrylate polyurethane core as tougheners for epoxy resins

2004 ◽  
Vol 39 (20) ◽  
pp. 6383-6384 ◽  
Author(s):  
Shen Jingqiang ◽  
Zhang Yafeng ◽  
Qiu Jindong ◽  
Kuang Jianzheng
Keyword(s):  
Epoxy Resins ◽  
Core Shell ◽  
Shell Particles

Technical notes on routine TEM procedures

1987 ◽  
Vol 45 ◽  
pp. 630-631
Author(s):  
K. Chien ◽  
R.L. Van de Velde ◽  
R.C. Heusser
Keyword(s):  
Epoxy Resins ◽  
Pathology Laboratory ◽  
Silicone Fluid ◽  
Image Position

Sectioning quality of epoxy resins can be improved by the addition of a 1% silicone 200 fluid (Dow Corning), however this produces a softer block. To compensate, a harder plastic has been used for embedding various tissues encountered in our pathology laboratory. Exact amounts of the plastic mixture can be directly made up for embedding as shown: The chart reveals a Poly/Bed 812 (WPE 145) to anhydride ratio of 1:0.7 and a NMA to DDSA ratio of 7:3. 1% silicone fluid is added to above mixtures.Due to impurities within the DDSA and NMA, the polymerized epoxy blocks vary in darkness and appear to affect sectioning quality. After discussing this problem with Polysciences Inc., they have agreed to purify their anhydrides in an effort to standardize the consistency of the plastic.

Magnetic Properties of Fe3O4/CoFe2O4 Composite Nanoparticles with Core/Shell Architecture

2020 ◽  
Vol 65 (10) ◽  
pp. 904
Author(s):  
V. O. Zamorskyi ◽  
Ya. M. Lytvynenko ◽  
A. M. Pogorily ◽  
A. I. Tovstolytkin ◽  
S. O. Solopan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Spinel Ferrite ◽  
Composite Nanoparticles ◽  
Core Shell ◽  
Cofe2o4 Nanoparticles ◽  
Core Diameter ◽  
The Core ◽  
Shell Particles ◽  
Interface Parameters ◽  
Shell Composite

Magnetic properties of the sets of Fe3O4(core)/CoFe2O4(shell) composite nanoparticles with a core diameter of about 6.3 nm and various shell thicknesses (0, 1.0, and 2.5 nm), as well as the mixtures of Fe3O4 and CoFe2O4 nanoparticles taken in the ratios corresponding to the core/shell material contents in the former case, have been studied. The results of magnetic research showed that the coating of magnetic nanoparticles with a shell gives rise to the appearance of two simultaneous effects: the modification of the core/shell interface parameters and the parameter change in both the nanoparticle’s core and shell themselves. As a result, the core/shell particles acquire new characteristics that are inherent neither to Fe3O4 nor to CoFe2O4. The obtained results open the way to the optimization and adaptation of the parameters of the core/shell spinel-ferrite-based nanoparticles for their application in various technological and biomedical domains.

Titanium Dioxide−Polymer Core–Shell Particles Dispersions as Electronic Inks for Electrophoretic Displays

2008 ◽  
Vol 20 (4) ◽  
pp. 1292-1298 ◽  
Author(s):  
M. P. L. Werts ◽  
M. Badila ◽  
C. Brochon ◽  
A. Hébraud ◽  
G. Hadziioannou
Keyword(s):  
Titanium Dioxide ◽  
Core Shell ◽  
Shell Particles

Synthesis and study of carbon/TiO2 and carbon/TiO2 core–shell micro-/nanospheres with increased density

2012 ◽  
Vol 28 (3) ◽  
pp. 440-448 ◽  
Author(s):  
Cynthia Papo ◽  
Zikhona Tetana ◽  
Paul Franklyn ◽  
Sabelo Mhlanga
Keyword(s):  
Core Shell ◽  
Image Position

Abstract

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