scholarly journals Radical Formation through Curing Reaction of Epoxy Resins with 2,4,6-Trinitrophenol or 2,4,6-Trinitroresorcinol

1983 ◽  
Vol 56 (3) ◽  
pp. 676-679 ◽  
Author(s):  
Kazuro Kawamura
Keyword(s):  
Epoxy Resins ◽  
Radical Formation ◽  
Curing Reaction

Synthesis of Three Novel Aromatic Biazomethine Liquid- Crystalline Epoxy Resins and Curing Reaction with Aromatic Diamine

2011 ◽  
Vol 216 ◽  
pp. 34-38
Author(s):  
Jun Gang Gao ◽  
Xiao Na Zhang ◽  
Yong Gang Du
Keyword(s):  
Melting Point ◽  
Epoxy Resins ◽  
Liquid Crystalline ◽  
Diphenyl Ether ◽  
Hydroxyl Group ◽  
Aromatic Diamine ◽  
Curing Reaction ◽  
Ozawa Equation ◽  
Liquid Crystalline Epoxy ◽  
Clearing Temperature

Three class of novel liquid crystalline epoxy resins containing azomething groups: N,N’-Bis[4-(2,3-epoxypropoxy)benzylidene]-4,4-diamino-diphenyl ether (p-BEPBDDE), N,N’-Bis[4-(2,3-epoxypropoxy)benzylidene]-4,4-diamino-diphenyl methane (p-BEPBDDM) and N,N’-Bis[(4-(2,3-epoxypropoxy)-benzyliden)-1,4- phenylene diamine] (p-BEPBPD) were synthesized and characterized. The results show that p-BEBDDE and p-BEBDDM belong to smectic texture and melting point is 239.5 and 178 oC, respectively. The p-BEPBD is nematic texture between its melting temperature (Tm) of 192 oC and clearing temperature (Ti) of 238 oC. The curing reaction can be described by Ozawa equation, and the alcohol-hydroxyl group can accelerate the curing reaction and decrease Ea in DSC experiment.

Warpage Behaviors of System-in-Packages on a Substrate Strip

2018 ◽  
Vol 2018 (1) ◽  
pp. 000344-000348
Author(s):  
Eric Ouyang ◽  
Billy Ahn ◽  
SeonMo Gu ◽  
Jim Hsu ◽  
Yonghyuk Jeong ◽  
...  
Keyword(s):  
Material Characterization ◽  
Epoxy Resins ◽  
Curing Process ◽  
Molding Compound ◽  
Advanced Material ◽  
Curing Reaction ◽  
Different Types ◽  
The Impact ◽  
Compound Materials ◽  
Kinetics Of

Abstract In this paper, the impact of two different types of warpage, strip warpage and system-in-packages (SiP) module warpage, are considered and studied, both experimentally and numerically. An advanced material characterization method is also conducted to study the curing reaction and Pressure-Volume-Temperature-Cure (PVTC) kinetics of the packages. The curing reaction of epoxy resins, as a function of temperature and activation energies, is experimentally determined. During the curing process, the viscosity of epoxy resins change with temperature and conversion rate. The Castro-Macosko model is adopted to describe the rheological properties of epoxy resins. Experimentally, we have prepared substrate strip samples with different component density and molding compound materials. Each substrate strip contains eighteen system-in-packages. The warpages of all substrate strips and all the system-in-package modules were measured, compared, and correlated.

scholarly journals Tuning Exothermic Curing Reaction of Hydrogenated Bisphenol A Epoxy Resins for Stone Conservation

2012 ◽  
Vol 28 (2) ◽  
pp. 131-139 ◽  
Author(s):  
Yong-Seok Choi ◽  
You-Jin Park ◽  
Yong-Soo Kang ◽  
Jong-Ok Won ◽  
Jeong-Jin Kim ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Epoxy Resins ◽  
Stone Conservation ◽  
Curing Reaction

Study on Curing Mechanism of Azo-Containing Twin Liquid Crystalline Epoxy Resins with Anhydride

2013 ◽  
Vol 702 ◽  
pp. 119-122
Author(s):  
Teng Fei Shen ◽  
Fa Chao Wu ◽  
Ying Juan Sun
Keyword(s):  
Differential Scanning Calorimetry ◽  
Epoxy Resins ◽  
Liquid Crystalline ◽  
Curing Kinetics ◽  
Scanning Calorimetry ◽  
Curing Reaction ◽  
Azo Group ◽  
Liquid Crystalline Epoxy ◽  
Curing Mechanism ◽  
Kinetics Of

A series of novel azo-containing twin liquid crystalline (LC) epoxy monomers were cured with anhydrides without extra catalyst and the curing kinetics was investigated by non-isothermal differential scanning calorimetry (DSC) technique. The effect of Azo group on the Curing Kinetics of Epoxy/anhydride System was investigated and the result showed that Azo group served as a catalyst to accelerate the curing reaction. The curing mechanism was confirmed by the UV-Vis spectrum.

Modeling of Curing Reaction Kinetics in Liquid-Crystalline Epoxy Resins

1997 ◽  
Vol 36 (8) ◽  
pp. 2976-2983 ◽  
Author(s):  
Giovanni Micco ◽  
Marta Giamberini ◽  
Eugenio Amendola ◽  
Cosimo Carfagna ◽  
Gianni Astarita
Keyword(s):  
Reaction Kinetics ◽  
Epoxy Resins ◽  
Liquid Crystalline ◽  
Curing Reaction ◽  
Liquid Crystalline Epoxy

scholarly journals A dynamic mechanical study of the curing reaction of two epoxy resins

1979 ◽  
Vol 19 (4) ◽  
pp. 313-318 ◽  
Author(s):  
G. A. Senich ◽  
W. J. MacKnight ◽  
N. S. Schneider
Keyword(s):  
Epoxy Resins ◽  
Dynamic Mechanical ◽  
Curing Reaction ◽  
Mechanical Study
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