Dual-curing propargyl-phthalonitrile imide-based thermoset: Synthesis, characterization and curing behavior

2021 ◽  
pp. 110865
Author(s):  
Timofey I. Kolesnikov ◽  
Alexandra M. Orlova ◽  
Anna Y. Tsegelskaya ◽  
Georgij V. Cherkaev ◽  
Alexander S. Kechekyan ◽  
...  
Keyword(s):  
Curing Behavior ◽  
Dual Curing

Dual-curing behavior and scratch characteristics of hydroxyl functionalized urethane methacrylate oligomer for automotive clearcoats

2012 ◽  
Vol 74 (1) ◽  
pp. 257-269 ◽  
Author(s):  
Seung M. Noh ◽  
Jae W. Lee ◽  
Joon H. Nam ◽  
Ki H. Byun ◽  
Jong M. Park ◽  
...  
Keyword(s):  
Curing Behavior ◽  
Dual Curing

scholarly journals Curing Behavior of Waterborne Paint Containing Catalyst Encapsulated in Micelle

Coatings ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 375
Author(s):  
Shuji Yomo
Keyword(s):  
Storage Stability ◽  
Catalytic Properties ◽  
Ionic Surfactant ◽  
Curing Behavior ◽  
Catalytic Function ◽  
Hydrophilic Lipophilic Balance ◽  
Pot Life

This research has studied the feasibility of fabricating a catalyst that activates at 80 °C to ensure the curing performance of two-pack isocyanate curable paints, while remaining inactive at 40 °C to ensure storage stability and pot life. The research examined whether the added dibutyl tin dilaurate (DBTL) provided a catalytic function for curing the waterborne paint, which remains almost inactive at 40 °C and activates at 80 °C or higher. It was confirmed that the use of a non-ionic surfactant with a hydrophilic-lipophilic-balance (HLB) of between 13 and 14 resulted in rapid curing at a temperature of 80 °C or higher, thereby demonstrating catalytic properties. The results also show that the viscosity of the paint remained virtually unchanged after exposure for 1 h at 40 °C. This wass presumed to be the result of the DBTL, which was constrained by the micelles up to a temperature of 70 °C, breaking down the micelles at a temperature of 80 °C or higher. It was also confirmed that the catalytic switching properties were not obtained at a lower or higher HLB. It was found that selecting the non-ionic surfactant by HLB can control the activating temperature of the catalytic properties.

scholarly journals Thiol-yne/thiol-epoxy hybrid crosslinked materials based on propargyl modified hyperbranched poly(ethyleneimine) and diglycidylether of bisphenol A resins

RSC Advances ◽  
2016 ◽  
Vol 6 (66) ◽  
pp. 61576-61584 ◽  
Author(s):  
Cristina Acebo ◽  
Xavier Fernàndez-Francos ◽  
Xavier Ramis ◽  
Àngels Serra
Keyword(s):  
Bisphenol A ◽  
Hyperbranched Poly ◽  
Dual Curing

Photoinitiated thiol-yne reaction was combined with thermal thiol-epoxy to get thermosets by dual curing from propargyl decorated poly(ethyleneimine) and DGEBA.

Influence of cellulose nanofibers on the curing behavior of epoxy/amine systems

2013 ◽  
Vol 49 (12) ◽  
pp. 3778-3787 ◽  
Author(s):  
Pei-Yu Kuo ◽  
Ning Yan ◽  
Mohini Sain
Keyword(s):  
Cellulose Nanofibers ◽  
Curing Behavior ◽  
Epoxy Amine

Curing behavior and structure of a novel nanocomposite from glycerol diglycidyl ether and 3,3-dimethylglutaric anhydride

2011 ◽  
Vol 517 (1-2) ◽  
pp. 9-15 ◽  
Author(s):  
Abdollah omrani ◽  
Abbas Ali Rostami ◽  
Fatemeh Ravari ◽  
Arezu Mashak
Keyword(s):  
Diglycidyl Ether ◽  
Curing Behavior

A study of the curing behavior of polyamic acid coated on a Cu or Zn layer

2008 ◽  
Vol 324 (1-3) ◽  
pp. 122-125 ◽  
Author(s):  
Wen-Guo Dong ◽  
Gun-Hong Kim ◽  
Jae-Youn Choi ◽  
Jun-Ro Yoon ◽  
Young-Ho Kim
Keyword(s):  
Polyamic Acid ◽  
Curing Behavior

Preparation and curing behavior of high-stress solid propellant binder based on polydicyclopentadiene

2016 ◽  
Vol 29 (8) ◽  
pp. 931-936 ◽  
Author(s):  
Qili Sun ◽  
Song Ma ◽  
Zhen Ge ◽  
Yunjun Luo
Keyword(s):  
Ring Opening ◽  
Solid Propellant ◽  
First Generation ◽  
High Stress ◽  
Mechanical Analysis ◽  
Polymerization Reaction ◽  
Curing Behavior ◽  
Maximum Value ◽  
Cure Time ◽  
Propellant Binder

The ring-opening metathesis polymerization reaction of dicyclopentadiene (DCPD) was carried out using Grubbs first generation catalyst. Fourier transform infrared (FTIR), dynamic-thermo mechanical analysis (DMA), and Raman spectroscopy were used to investigate the curing behavior of this polymer. The FTIR results showed that DCPD had not cured completely and the polymers were composed of linear and cross-linked polydicyclopentadiene (PDCPD). The DMA test showed that the polymer possesses the glass transition temperature of linear PDCPD and cross-linked PDCPD, which had also proved the FTIR result. Furthermore, in order to explain the strange phenomenon that the band at 3004 cm−1 should have been detected in infrared spectrum, the Raman spectrum of PDCPD was applied to analyze the bonding mechanism of =C–H bond in the process of polymerization. Moreover, the real-time FTIR result cure formula showed that the cure degree increases first then constants trend with cure time of increasing, the cure degree reached the maximum value (96.76%) at 60°C for 192 h.

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