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Study on epoxy resins modified by polycarbonate polyurethanes
Author(s) -
Chen Tonghui,
Li Hansheng,
Gao Yue,
Zhang Minlian
Publication year - 1998
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19980801)69:5<887::aid-app7>3.0.co;2-i
Subject(s) - polycarbonate , polyurethane , epoxy , differential scanning calorimetry , scanning electron microscope , materials science , composite material , polymer chemistry , physics , thermodynamics
Abstract In this article, the structure and properties of the epoxy resin (EP) modified by polyurethane (PU) prepolymers were studied. The three types of polyurethane prepolymers, namely, polycarbonate‐type PU (TPC), polyether‐type PU, and polycarbonate–polyether‐type PU were employed. The samples were analyzed by means of an infrared spectrometer, a differential scanning calorimeter, a scanning electron microscope, a transmission electron microscope, a scanning tunnel microscope, and a thermal gravimeter. The results show that the EP modified by TPC is of excellent thermal resistance and mechanical properties. Specifically, when the ratio of PU to EP is 10/100 (wt/wt), optimal properties are achieved. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 69: 887–893, 1998