The Properties of 0.5BZT - 0.5BCT Piezoelectric Ceramic from Gel Casting Process by Using Ethylene Glycol Diglycidyl Ether (EGDGE) Epoxy Resin as a Gelling Agent

2020 ◽  
Vol 856 ◽  
pp. 399-406
Author(s):  
Tanikan Thongchai
Keyword(s):  
Ethylene Glycol ◽  
Epoxy Resin ◽  
Piezoelectric Ceramic ◽  
Casting Process ◽  
Diglycidyl Ether ◽  
Resin Content ◽  
Gelling Agent ◽  
Acrylic Polymer ◽  
Solids Loading ◽  
Gel Casting

This research is concerned with properties of 0.5BZT-0.5BCT through a water based gel casting process by using Ethylene Glycol Diglycidyl Ether (EGDGE) epoxy resin as a gelling agent. A solution of an ammonium salt of an acrylic polymer in water (NH4PAA) was used as an additive in order to make the dispersion of the powders easier and provide better stability of the slurry and dispersant. The results were found that viscosities of the 0.5BZT-0.5BCT with EGDGE epoxy resin was minimised by the addition of 1.6 wt% of dispersant based on the dried powder weight. The highest green strengths of around 25 MPa were achieved at 30 wt% EGDGE resin content and 44 vol% solids loading. The gel casting samples were studied at sintering temperatures between 1300-1500 °C. The highest values of piezoelectric and dielectric properties corresponded to 0.5BZT-0.5BCT gel casting samples fabricated with a gel casting slurry incorporating 30 wt% EGDGE resin content, 44 vol% solids loading and sintered at 1500 °C, with d33 and εr values of 310 pC/N and 2515, respectively.

Gel-casting of β-TCP using epoxy resin as a gelling agent

2008 ◽  
Vol 28 (15) ◽  
pp. 2889-2894 ◽  
Author(s):  
Biqin Chen ◽  
Dongliang Jiang ◽  
Jingxian Zhang ◽  
Manjiang Dong ◽  
Qingling Lin
Keyword(s):  
Epoxy Resin ◽  
Gelling Agent ◽  
Gel Casting

Flexible transparent wood enabled by epoxy resin and ethylene glycol diglycidyl ether

2020 ◽  
Author(s):  
Hangchuan Cai ◽  
Zhiqi Wang ◽  
Di Xie ◽  
Panpan Zhao ◽  
Jianping Sun ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Epoxy Resin ◽  
Diglycidyl Ether

scholarly journals Dense and Cellular Zirconia Produced by Gel Casting with Agar: Preparation and High Temperature Characterization

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Jean-Marc Tulliani ◽  
Edoardo Bemporad ◽  
Marco Sebastiani ◽  
Giovanni Pulci ◽  
Jacopo Tirillò ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Cross Sections ◽  
Focused Ion Beam ◽  
Bending Strength ◽  
Ion Beam ◽  
Tetragonal Zirconia ◽  
Casting Process ◽  
Sem Analysis ◽  
Gelling Agent ◽  
Gel Casting

A modified gel-casting process was developed to produce both dense and highly porous (40% volume) yttria tetragonal zirconia polycrystal (Y-TZP) using agar, a natural polysaccharide, as gelling agent. A fugitive phase, made of commercial polyethylene spheres, was added to the ceramic suspension before gelling to produce cellular ceramic structures. The characterization of the microstructural features of both dense and cellular ceramics was carried out by FEG SEM analysis of cross-sections produced by focused ion beam. The mechanical properties of the components were characterized at room temperature by nanoindentation tests in continuous stiffness measurement mode, by investigating the direct effect of the presence of residual microporosity. The presence of a diffuse residual microporosity from incomplete gel deaeration resulted in a decay of the bending strength and of the elastic modulus. The mechanical behavior of both dense and cellular zirconia (in terms of elastic modulus, flexural strength, and deformation at rupture) was investigated by performing four-point bending tests at the temperature of 1500°C.

scholarly journals Preparation of high strength zirconia by epoxy gel-casting using hydantion epoxy resin as a gelling agent

2019 ◽  
Vol 96 ◽  
pp. 280-285 ◽  
Author(s):  
Jingjing Liao ◽  
Dou Zhang ◽  
Xuewen Wu ◽  
Hang Luo ◽  
Kechao Zhou ◽  
...  
Keyword(s):  
Epoxy Resin ◽  
High Strength ◽  
Gelling Agent ◽  
Gel Casting

Preparation and properties of mullite-bonded porous fibrous mullite ceramics by an epoxy resin gel-casting process

2017 ◽  
Vol 43 (7) ◽  
pp. 5478-5483 ◽  
Author(s):  
Lei Yuan ◽  
Beiyue Ma ◽  
Qiang Zhu ◽  
Xiaodong Zhang ◽  
Han Zhang ◽  
...  
Keyword(s):  
Epoxy Resin ◽  
Casting Process ◽  
Gel Casting ◽  
Mullite Ceramics

scholarly journals Ethoxylated Butoxyethanol-BADGE Adducts—New Potential Migrants from Epoxy Resin Can Coating Material

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3682
Author(s):  
Monika Beszterda ◽  
Małgorzata Kasperkowiak ◽  
Magdalena Frańska ◽  
Sandra Jęziołowska ◽  
Rafał Frański
Keyword(s):  
Mass Spectrometry ◽  
High Pressure ◽  
Liquid Chromatography ◽  
Epoxy Resin ◽  
Diglycidyl Ether ◽  
Ionization Mass ◽  
Coating Materials ◽  
Oxyethylene Unit ◽  
Bisphenol A Diglycidyl Ether ◽  
Product Ions

The acetonitrile extracts of can-coating materials have been analyzed by using high-pressure liquid chromatography/electrospray ionization-mass spectrometry (HPLC/ESI-MS). On the basis of detected ions [M + H]+, [M + NH4]+, [M + Na]+ and product ions, the ethoxylated butoxyethanol-bisphenol A diglycidyl ether adducts were identified in two of the analyzed extracts. Although the oxyethylene unit-containing compounds are widely used for the production of different kinds of materials, the ethoxylated species have not been earlier detected in epoxy resin can-coatings.

scholarly journals Ultrasonic-modified montmorillonite uniting ethylene glycol diglycidyl ether to reinforce protein-based composite films

e-Polymers ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 433-442
Author(s):  
Hua He ◽  
Rui-jing Jia ◽  
Kai-qiang Dong ◽  
Jia-wen Huang ◽  
Zhi-yong Qin
Keyword(s):  
Ethylene Glycol ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Composite Films ◽  
Barrier Properties ◽  
Protein Isolate ◽  
Diglycidyl Ether ◽  
X Ray Diffraction ◽  
Protein Film ◽  
Modified Montmorillonite

Abstract A novel biodegradable protein-based material (UMSPIE) that consists of natural polymer soy protein isolate (SPI), ultrasonic-modified montmorillonite (UMMT), and ethylene glycol diglycidyl ether (EGDE) was produced by solution casting. Fourier infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TG), and scanning electron microscopy (SEM) were used to characterize the chemical structure and micro-morphologies of as-synthesized protein-based composite films. The results showed that the interlayer structure of MMT was destroyed by ultrasonic treatment, and the hydrogen bonding between SPI chains and the ultrasound-treated MMT plates was enhanced. The synergistic effect of UMMT and EGDE on SPI molecules made the network structure of the UMSPIE film denser. In addition, the mechanical and barrier properties of the as-synthesized films were explored. Compared with pure soy protein film, the tensile strength of the UMSPIE film has an increase of 266.82% (increasing from 4.4 to 16.14 MPa). From the above, the modified strategy of layered silicates filling combining crosslinking agents is considered as an effective method to improve the functional properties of bio-based polymer composites.

scholarly journals Synthesis of Network Polymers by Means of Addition Reactions of Multifunctional-Amine and Poly(ethylene glycol) Diglycidyl Ether or Diacrylate Compounds

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2047
Author(s):  
Naofumi Naga ◽  
Mitsusuke Sato ◽  
Kensuke Mori ◽  
Hassan Nageh ◽  
Tamaki Nakano
Keyword(s):  
Ethylene Glycol ◽  
Room Temperature ◽  
Addition Reaction ◽  
Monomer Concentration ◽  
Diglycidyl Ether ◽  
Porous Polymers ◽  
Addition Reactions ◽  
Poly Ethylene Glycol ◽  
Network Polymers ◽  
Poly Ethylene

Addition reactions of multi-functional amine, polyethylene imine (PEI) or diethylenetriamine (DETA), and poly(ethylene glycol) diglycidyl ether (PEGDE) or poly(ethylene glycol) diacrylate (PEGDA), have been investigated to obtain network polymers in H2O, dimethyl sulfoxide (DMSO), and ethanol (EtOH). Ring opening addition reaction of the multi-functional amine and PEGDE in H2O at room temperature or in DMSO at 90 °C using triphenylphosphine as a catalyst yielded gels. Aza-Michael addition reaction of the multi-functional amine and PEGDA in DMSO or EtOH at room temperature also yielded corresponding gels. Compression test of the gels obtained with PEI showed higher Young’s modulus than those with DETA. The reactions of the multi-functional amine and low molecular weight PEGDA in EtOH under the specific conditions yielded porous polymers induced by phase separation during the network formation. The morphology of the porous polymers could be controlled by the reaction conditions, especially monomer concentration and feed ratio of the multi-functional amine to PEGDA of the reaction system. The porous structure was formed by connected spheres or a co-continuous monolithic structure. The porous polymers were unbreakable by compression, and their Young’s modulus increased with the increase in the monomer concentration of the reaction systems. The porous polymers absorbed various solvents derived from high affinity between the polyethylene glycol units in the network structure and the solvents.

Viscoelastic behavior and toughness of the DGEBA epoxy resin with 1,2-diaminocyclohexane: effect of functionalized poly(dimethylsiloxane), diglycidyl ether, PDMS-DGE, pre-reacted with 1,2-diaminocyclohexane

2021 ◽  
Author(s):  
José Antonio Arcos-Casarrubias ◽  
Humberto Vázquez-Torres ◽  
Jorge Alberto Granados-Olvera ◽  
Asdrúbal J. Cedeño ◽  
José Manuel Cervantes-Uc
Keyword(s):  
Epoxy Resin ◽  
Viscoelastic Behavior ◽  
Diglycidyl Ether
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