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Journal of Materials Engineering and Performance

Published in:

01-07-2012

Glass Reinforcement of Various Epoxy Resins-Polyurea Systems

Authors: Medha Joshi, Smita Jauhari

Published in: Journal of Materials Engineering and Performance | Issue 7/2012

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Abstract

Polyureas (PUs) were prepared by the polycondensation reaction of disperse dyes containing -NH₂ group and toluene 2, 4-diisocyanate. The disperse dyes have been prepared by coupling of various 2-diazobenzothiazoles with 1,3-benzenediamine. All the PUs were characterized by elemental analysis, spectral studies, number average molecular weight \( \left( {\overline{\text{Mn}} } \right), \) and thermogravimetry. Further reaction of PUs was carried out with an epoxy resin (i.e., DGEBA). The curing study of prepared resins was monitored by differential scanning calorimeter (DSC). Based on DSC, thermograms glass fiber-reinforced composites have been laminated and characterized by chemical, mechanical, and electrical properties. The unreinforced cured resins were subjected to thermogravimetric analysis (TGA). The laminated composites showed excellent resistance properties against chemicals and good mechanical and electrical properties.

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Title: Glass Reinforcement of Various Epoxy Resins-Polyurea Systems
Authors: Medha Joshi
Smita Jauhari
Publication date: 01-07-2012
Publisher: Springer US
Published in: Journal of Materials Engineering and Performance / Issue 7/2012
Print ISSN: 1059-9495
Electronic ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-011-9989-x

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