Curing behavior and kinetics of epoxy resins cured with liquid crystalline curing agent

2011 ◽  
Vol 107 (3) ◽  
pp. 1205-1211 ◽  
Author(s):  
Hai-Mei Wang ◽  
Yue-Chao Zhang ◽  
Li-Rong Zhu ◽  
Bao-Long Zhang ◽  
Yu-Ying Zhang
Keyword(s):  
Epoxy Resins ◽  
Liquid Crystalline ◽  
Curing Agent ◽  
Curing Behavior ◽  
Kinetics Of

Curing behavior, thermal, and mechanical properties of epoxy resins cured with a novel liquid crystalline dicarboxylic acid curing agent

2013 ◽  
Vol 54 (3) ◽  
pp. 695-703 ◽  
Author(s):  
Le Hoang Sinh ◽  
Nguyen Ngoc Trung ◽  
Bui Thanh Son ◽  
Seunghan Shin ◽  
Dinh Tan Thanh ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Dicarboxylic Acid ◽  
Epoxy Resins ◽  
Liquid Crystalline ◽  
Curing Agent ◽  
Thermal And Mechanical Properties ◽  
Curing Behavior

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.

Curing kinetics of liquid-crystalline epoxy resins

1993 ◽  
Vol 13 (4) ◽  
pp. 571-584 ◽  
Author(s):  
C. Carfagna ◽  
E. Amendola ◽  
M. Giamberini ◽  
A. G. Filippov ◽  
R. S. Bauer
Keyword(s):  
Epoxy Resins ◽  
Liquid Crystalline ◽  
Curing Kinetics ◽  
Liquid Crystalline Epoxy ◽  
Kinetics Of

Investigation of Curing Kinetics of Azo-Containing Twin Liquid Crystalline Epoxy Resins with Anhydride

2013 ◽  
Vol 702 ◽  
pp. 115-118
Author(s):  
Teng Fei Shen ◽  
Chun Feng Sun ◽  
Ying Juan Sun
Keyword(s):  
Epoxy Resins ◽  
Liquid Crystalline ◽  
Curing Kinetics ◽  
Chemical Kinetic ◽  
Diffusion Control ◽  
Kinetic Control ◽  
Control Mechanisms ◽  
Scanning Calorimetry ◽  
Kinetics Of ◽  
And Diffusion

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 results showed that the effect of phase behavior on activation energy (Ea) was very great. The chemical kinetic control and diffusion control mechanisms dominant the curing together, which gives a larger value of Ea. Azo group also served as a catalyst to accelerate the curing reaction.

Curing behavior of Azo-containing twin liquid crystalline epoxy resins with anhydride

2012 ◽  
Vol 52 (6) ◽  
pp. 1375-1382 ◽  
Author(s):  
Dewen Zhou ◽  
Mangeng Lu ◽  
Liyan Liang ◽  
Tengfei Shen ◽  
Wanping Xiao
Keyword(s):  
Epoxy Resins ◽  
Liquid Crystalline ◽  
Curing Behavior ◽  
Liquid Crystalline Epoxy

Curing kinetics of liquid-crystalline epoxy resins with inverse reactivity ratios

2000 ◽  
Vol 201 (12) ◽  
pp. 1209-1213 ◽  
Author(s):  
Alice Mititelu ◽  
Thierry Hamaide ◽  
Christian Novat ◽  
Jérôme Dupuy ◽  
Constantin N. Cascaval ◽  
...  
Keyword(s):  
Epoxy Resins ◽  
Liquid Crystalline ◽  
Curing Kinetics ◽  
Reactivity Ratios ◽  
Liquid Crystalline Epoxy ◽  
Kinetics Of

scholarly journals Effect of an Anhydride Excess on the Curing Kinetics and Dynamic Mechanical Properties of Synthetic and Biogenic Epoxy Resins

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Facundo I. Altuna ◽  
Carmen C. Riccardi ◽  
Diana C. Marín Quintero ◽  
Roxana A. Ruseckaite ◽  
Pablo M. Stefani
Keyword(s):  
Epoxy Resins ◽  
Curing Kinetics ◽  
Dynamic Mechanical Properties ◽  
Diglycidyl Ether ◽  
Curing Agent ◽  
Curing Process ◽  
Optimal Amount ◽  
Efficient Processing ◽  
Kinetics Of ◽  
Methyltetrahydrophthalic Anhydride

This work analyzes the effect of the anhydride excess on the nonisothermal curing kinetics and on the final properties of synthetic and biobased epoxy resins. Diglycidyl ether of bisphenol A (DGEBA) and epoxidized soybean oil (ESO) were crosslinked using methyltetrahydrophthalic anhydride (MTHPA) as a curing agent and 1-methylimidazole (1MI) as an initiator. It was shown that the ESO/MTHPA/1MI system reacts slower than the DGEBA/MTHPA/1MI system, giving place to a more significant evaporation of the curing agent during the reaction. As a result, an excess of anhydride improves the final thermal properties of the ESO/MTHPA/1MI network, contrary to the behavior observed for DGEBA/MTHPA/1MI. The knowledge of the kinetics of the curing process and the optimal amount of the curing agent for each system is of critical importance for a more efficient processing of these materials.

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