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Electron‐beam curing of thick thermoset composites: Effect of temperature and fiber
Author(s) -
Glauser Thierry,
Johansson Mats,
Hult Anders
Publication year - 2000
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/(sici)1439-2054(20000101)274:1<20::aid-mame20>3.0.co;2-e
Subject(s) - materials science , thermosetting polymer , composite material , curing (chemistry) , glass transition , glass fiber , composite number , acrylate , thermal , methacrylate , polymer , copolymer , physics , meteorology
Electron‐beam curing of thermoset resins used in fiber‐reinforced composites has been investigated. Two resins, a bisphenol‐A acrylate and methacrylate, were used as model systems. The temperature was monitored during cure to know the thermal history of the composite during cure. The thermo‐mechanical properties were measured on the cured samples. It could be seen that all these values were influenced by the nature (glass or carbon) and amount (0–50 wt.‐%) of fiber. A linear correlation was found between the maximum temperature during cure and the glass transition temperature. It was shown that it is possible to compensate for a lack of heat during cure in systems with too low exotherms. Some influence on the network homogeneity was also noticed when the thermal energy available during cure was too low.