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Low viscosity cyanate ester resin for the injection repair of hole-edge delaminations in bismaleimide/carbon fiber composites
(Composites Part A: Applied Science and Manufacturing, 2013)
The repair efficiency of bisphenol E cyanate ester (BECy) resin was investigated for the injection repair of high temperature polymer–matrix composites by ultrasonic C-scan mapping, fluorescent dye penetration, optical ...
Liquid crystalline epoxy resin based on biphenyl mesogen: Thermal characterization
(Polymer, 2013-05)
An epoxy monomer of 4,4′-diglycidyloxybiphenyl (BP) was synthesized and cured with a tetra-functional amine, sulfanilamide (SAA), to produce novel liquid crystalline epoxy resins (LCERs). The thermal properties, liquid ...
Preparation and characterization of whey protein isolate films reinforced with porous silica coated titania nanoparticles
(Journal of Food Engineering, 2013)
Whey protein isolate (WPI) films embedded with TiO2@@SiO2 (porous silica (SiO2) coated titania (TiO2)) nanoparticles for improved mechanical properties were prepared by solution casting. A WPI solution of 1.5 wt% TiO2@@SiO2 ...
Effect of PEGDE addition on rheological and mechanical properties of bisphenol E cyanate ester
(Journal of Applied Polymer Science, 2013)
Cyanate esters are a group of resins with exceptional thermal and mechanical properties and are often blended with lower cost epoxy resins. These blends are often brittle, and a toughening method, such as the addition of ...
Bisphenol E cyanate ester as a novel resin for repairing BMI/carbon fiber composites: Influence of cure temperature on adhesive bond strength
(Polymer, 2013)
The increasing use of polymer matrix composites (PMCs) in structural applications created demand for advanced repair techniques to fix internal delaminations in PMCs. One of a variety of repair techniques is injection ...
Cure kinetics characterization and monitoring of an epoxy resin using DSC, Raman spectroscopy, and DEA
(Composites Part A: Applied Science and Manufacturing, 2013-06)
The use of thick sections of fiber-reinforced polymers (FRPs) is increasing for numerous industrial applications such as wind turbine blades. In situ cure monitoring is very important to directly observe the cure process ...
Electrothermal lifetime prediction of polyimide wire insulation with application to aircraft
(Journal of Applied Polymer Science, 2013-11)
This work investigates the electrothermal lifetime of a commonly used polyimide wire insulation material, Kapton®, through the use of thermogravimetry (TG) and breakdown voltage testing. From TG, an isoconversional model-free ...
Soy-castor oil based polyols prepared using a solvent-free and catalyst-free method and polyurethanes therefrom
(Green Chemistry, 2013)
Bio-based polyols from epoxidized soybean oil and castor oil fatty acid were developed using an environmentally friendly, solvent-free/catalyst-free method. The effects of the molar ratios of the carboxyl to the epoxy ...
Degradation of ROMP-based bio-renewable polymers by UV radiation
(Polymer Degradation and Stability, 2013)
The degradation of a bio-renewable polymer under UV exposure was studied using various methods. Degradation of the bio-renewable polymer increased with increasing exposure time. Enhanced cross-link density in the early ...
An efficient approach to prepare ether and amide-based self-catalyzed phthalonitrile resins
(Polymer Chemistry, 2013)
Phthalonitrile polymers with amide and ortho-, meta-, and para-substituted ether linkages in the backbone were synthesized successfully and their thermal properties were investigated. The monomer building blocks for these ...