The curing of a bisphenol A‐type epoxy resin with 1,8 diamino‐p‐menthane | Zendy

Donnellan Thomas | Zendy; Roylance David | Zendy

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The curing of a bisphenol A‐type epoxy resin with 1,8 diamino‐p‐menthane

Author(s) -

Donnellan Thomas,

Roylance David

Publication year - 1982

Publication title -

polymer engineering and science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 111

eISSN - 1548-2634

pISSN - 0032-3888

DOI - 10.1002/pen.760221306

Subject(s) - differential scanning calorimetry , curing (chemistry) , epoxy , materials science , bisphenol a , fourier transform infrared spectroscopy , glass transition , isothermal process , polymer chemistry , composite material , chemical engineering , polymer , thermodynamics , physics , engineering

Differential Scanning Calorimetry(DSC), Torsional Braid Analysis (TBA), and Fourier Transform Infrared Spectroscopy (FT‐IR) were used to study the cure characteristics of an epoxy system that utilized a sterically hindered amine curing agent. The apparent activation energy was found to be 13.3 kCal./Mol. by DSC and 12.8 kCal./Mol. by FT‐IR. Resin volatility hindered useful application of conventional TBA techniques. The resin was found to react to a partially cured (52%) state at room temperature and then vitrify. Samples stored for a two‐month period showed no advance in cure state. Subsequent application of heat caused resin devitrification and advance to a more fully cured state. The isothermal curing behavior was studied in a temperature range from 100° to 150°C.

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