Results 351 to 360 of about 695,264 (389)
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Recyclable and Malleable Epoxy Thermoset Bearing Aromatic Imine Bonds
Macromolecules, 2018A method for preparing reprocessable epoxy thermoset is presented. The process is composed of synthesis of a bisphenol monomer bridged by an imine bond, glycidylation of the bisphenol, and cross-linking with a hardener to form thermoset.
Shou Zhao, M. Abu‐Omar
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An Improved Method to Determine Epoxy Index of Epoxy Resins
Polymer-Plastics Technology and Engineering, 2007In this communication, the effects of testing conditions, i.e., reaction time and temperature, on the accuracy for determining epoxy index of chloroepoxy propane were investigated, in order to reduce errors generated by using the current Chinese Standard GB1677-81 for determining epoxy indexes of epoxy resins.
Shi-rong Li +4 more
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Moisture solubility and diffusion in epoxy and epoxy-glass composites
IBM Journal of Research and Development, 1984The solubility and kinetics of moisture transport mechanisms in epoxy-type resin and resin-glass composites have been investigated over a range of partial pressure and temperature. Moisture absorption-desorption in these systems is a quasi-reversible process, the kinetics of which are non-Fickian (Type II) and dependent on prior history.
George S. Springer +3 more
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Modification of epoxy binders using cycloaliphatic epoxy imides
Polymer Science Series D, 2014The influence of epoxy imide cycloaliphatic epoxy resin EPOX-01 on the rheological properties of the epoxy amine system was investigated. The effect of the amount of amine hardener for solidification process of modified system is evaluated. It is shown that the use of epoxy imide cycloaliphatic resin allows one to obtain materials with improved ...
N. N. Panina +4 more
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A Catalyst-Free Epoxy Vitrimer System Based on Multifunctional Hyperbranched Polymer
Macromolecules, 2018To date, all epoxy vitrimer systems reported in the literature rely on addition of significant amounts of catalysts to achieve the dynamic transesterification reaction (TER).
Jiarui Han +5 more
semanticscholar +1 more source
2000
Publisher Summary Epoxies are formulated from a wide variety of resins and hardeners that result in extremely specialized products for different purposes and applications. Today, epoxies have achieved a respectable status and are the accepted standard in machinery installation. Epoxy grouts are usually composed of three components: the resin, normally
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Publisher Summary Epoxies are formulated from a wide variety of resins and hardeners that result in extremely specialized products for different purposes and applications. Today, epoxies have achieved a respectable status and are the accepted standard in machinery installation. Epoxy grouts are usually composed of three components: the resin, normally
openaire +3 more sources
Epoxy Resin Based Polyamides as Epoxy Curing Agents
International Journal of Polymeric Materials, 1997Abstract Novel bis ester 1,1′-(1-methyl ethylidene) bis[4-{1-(1-imino-4-ethyl benzoate)-2-pro-panolyloxy}] benzene was prepared by the reaction of epoxy resin, diglycidyl ether of bisphenol-A (DGEBA) and 4-aminoethyl benzoate. The polyamides (PAs) were prepared by the condensation of this novel bis ester with three aliphatic diamines viz; diethylene ...
Rajesh Baraiya, Jatin R. Thakkar
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Epoxy resins. I. The stability of the epoxy–trimethoxyboroxine system
Journal of Applied Polymer Science, 1979The useful life of a material depends on its environmental exposure. The diglycidyl ether of bisphenol A (DGEBA) cured with trimethoxyboroxine (TMB) was evaluated under various aging conditions. For isothermal aging, the main factor controlling weight loss appeared to be related to the diffusion of the degradation products (Eact = 22.1 kcal/mole ...
Eli M. Pearce, S. C. Lin
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Applied Mechanics and Materials, 2015
In this study the lamina properties of glass/epoxy, carbon/epoxy and kevlar/epoxy composite along their principal coordinate axes were evaluated by performing tensile test. The laminates were prepared by hand lay-up technique and compressed using a compression molding machine at 70 oc and 80 bar pressure.
Kumar N. Ram +2 more
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In this study the lamina properties of glass/epoxy, carbon/epoxy and kevlar/epoxy composite along their principal coordinate axes were evaluated by performing tensile test. The laminates were prepared by hand lay-up technique and compressed using a compression molding machine at 70 oc and 80 bar pressure.
Kumar N. Ram +2 more
openaire +2 more sources