Conference proceeding
An investigation on cationic polymerization reaction of epoxy resins for electron-beam curing of composites
ICAMMP-2002: International Conference on Advances in Materials Processing; Kharagpur; India; 1-3 Feb. 2002
01 Feb 2002
Abstract
There has been a growing interest in electron-beam (e-beam) curing of resins and composites. Over the past several years, electron-beam curing has been actively explored as a means to reduce the processing and fabrication costs of military systems, including fixed-winged and rotor aircraft, ground vehicles, and spacecraft. E-beam induced polymerization of epoxy resins proceeds via a cationic mechanism in the presence of an appropriate photo-initiator. Despite good thermal and significant processing advantages, epoxy-based composites manufactured using e-beam curable systems suffer from low compressive strength, poor interlaminar shear strength, and low fracture toughness. A detailed understanding of the reaction mechanisms of e-beam induced cationic polymerization as it pertains to network formation is required to properly address the shortcomings associated with e-beam curable systems. This work investigated the effect of hydroxyl-containing materials on e-beam induced cationic polymerization of epoxy resins. Such hydroxyl moieties can be found as water, part of monomer, the reaction products, or additives in the form of alcohols. An investigation of the e-beam induced cationic cationic reaction of the model monoepoxy system, phenyl glycidyl ether (PGE) in the presence of a primary aliphatic alcohol, 2-cyclohexyl ethyl alcohol (CHEA) and phenol was conducted to determine relative reaction rates. The alcohols were found to take part in the cationic polymerization of epoxies, with the aliphatic hydroxyl group being incorporated into the polymer more readily than the phenolic hydroxyl group.
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Details
- Title
- An investigation on cationic polymerization reaction of epoxy resins for electron-beam curing of composites
- Creators
- N GoshG Palmese
- Publication Details
- ICAMMP-2002: International Conference on Advances in Materials Processing; Kharagpur; India; 1-3 Feb. 2002
- Conference
- ICAMMP-2002: International Conference on Advances in Materials Processing (Kharagpur; India, 01 Feb 2002 - 03 Feb 2002)
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Identifiers
- 991019201378604721