Blocked isocyanates as alternative curing agents for epoxy-polyurethane resins based on modified vegetable oils

Cold-Curing Structural Epoxy Resins: Analysis of the Curing Reaction as a Function of Curing Time and Thickness

The curing reaction of a commercial cold-curing structural epoxy resin, specifically formulated for civil engineering applications, was analyzed by thermal analysis as a function of the curing time and the sample thickness. Original and remarkable results regarding the effects of curing time on the glass transition temperature and on the residual heat of reaction of the cold-cured epoxy were ob...

1 The development of controllable complex curing agents for epoxy

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Properties and curing kinetics of C21-based reactive polyamides as epoxy-curing agents derived from tung oil

Three C21-based reactive polyamides were synthesized from tung oil and different polyamines. The thermal and mechanical properties of cured products of the C21-based polyamides and diglycidyl ether of bisphenol A (DGEBA) were investigated. It was found that the cured materials were superior to those cured by C36-based polyamides in tensile strength and flexural strength and had a better flexura...

Applications of FTIR on Epoxy Resins – Identification, Monitoring the Curing Process, Phase Separation and Water Uptake

Emulsification of Chemically Modified Vegetable Oils for Lubricant Use

Oil in water emulsions of several vegetable oils were studied in order to prepare a useful lubrication fluid. Several previously uncharacterized systems were studied in this paper, including those made from epoxidized vegetable oils. A series of different surfactants were studied in order to obtain emulsions suitable for lubrication applications. The epoxidized oils were found to form stable oi...