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Title: Critical parameters for electron beam curing of cationic epoxies and property comparison of electron beam cured cationic epoxies versus thermal cured resins and composites

Abstract

Electron beam curing of composites is a nonthermal, nonautoclave curing process offering the following advantages compared to conventional thermal curing: substantially reduced manufacturing costs and curing times; improvements in part quality and performance; reduced environmental and health concerns; and improvements in material handling. In 1994 a Cooperative Research and Development Agreement (CRADA), sponsored by the Department of Energy Defense Programs and 10 industrial partners, was established to advance electron beam curing of composites. The CRADA has successfully developed hundreds of new toughened and untoughened resins, offering unlimited formulation and processing flexibility. Several patent applications have been filed for this work. Composites made from these easily processable, low shrinkage material match the performance of thermal cured composites and exhibit: low void contents comparable to autoclave cured composites (less than 1%); superb low water absorption values in the same range as cyanate esters (less than 1%); glass transition temperatures rivaling those of polyimides (greater than 390 C); mechanical properties comparable to high performance, autoclave cured composites; and excellent property retention after cryogenic and thermal cycling. These materials have been used to manufacture many composite parts using various fabrication processes including hand lay-up, tow placement, filament winding, resin transfer molding and vacuum assistedmore » resin transfer molding.« less

Authors:
; ;  [1];  [2];  [3]
  1. Oak Ridge National Lab., TN (United States). Oak Ridge Centers for Manufacturing Technology
  2. Oak Ridge Inst. for Science and Education, TN (United States)
  3. Atomic Energy of Canada Ltd., Pinawa, Manitoba (Canada). Whiteshell Labs.
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
463645
Report Number(s):
CONF-970581-1
ON: DE97003336; TRN: 97:009791
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Conference
Resource Relation:
Conference: Spring meeting of the Society for the Advancement of Material and Process Engineering, Anaheim, CA (United States), 5-8 May 1997; Other Information: PBD: 16 Jan 1997
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPE AND RADIATION SOURCE TECHNOLOGY; 36 MATERIALS SCIENCE; COMPOSITE MATERIALS; RADIATION CURING; EPOXIDES; COMPARATIVE EVALUATIONS; COORDINATED RESEARCH PROGRAMS; RESINS; ELECTRON BEAMS

Citation Formats

Janke, C J, Norris, R E, Yarborough, K, Havens, S J, and Lopata, V J. Critical parameters for electron beam curing of cationic epoxies and property comparison of electron beam cured cationic epoxies versus thermal cured resins and composites. United States: N. p., 1997. Web.
Janke, C J, Norris, R E, Yarborough, K, Havens, S J, & Lopata, V J. Critical parameters for electron beam curing of cationic epoxies and property comparison of electron beam cured cationic epoxies versus thermal cured resins and composites. United States.
Janke, C J, Norris, R E, Yarborough, K, Havens, S J, and Lopata, V J. 1997. "Critical parameters for electron beam curing of cationic epoxies and property comparison of electron beam cured cationic epoxies versus thermal cured resins and composites". United States. https://www.osti.gov/servlets/purl/463645.
@article{osti_463645,
title = {Critical parameters for electron beam curing of cationic epoxies and property comparison of electron beam cured cationic epoxies versus thermal cured resins and composites},
author = {Janke, C J and Norris, R E and Yarborough, K and Havens, S J and Lopata, V J},
abstractNote = {Electron beam curing of composites is a nonthermal, nonautoclave curing process offering the following advantages compared to conventional thermal curing: substantially reduced manufacturing costs and curing times; improvements in part quality and performance; reduced environmental and health concerns; and improvements in material handling. In 1994 a Cooperative Research and Development Agreement (CRADA), sponsored by the Department of Energy Defense Programs and 10 industrial partners, was established to advance electron beam curing of composites. The CRADA has successfully developed hundreds of new toughened and untoughened resins, offering unlimited formulation and processing flexibility. Several patent applications have been filed for this work. Composites made from these easily processable, low shrinkage material match the performance of thermal cured composites and exhibit: low void contents comparable to autoclave cured composites (less than 1%); superb low water absorption values in the same range as cyanate esters (less than 1%); glass transition temperatures rivaling those of polyimides (greater than 390 C); mechanical properties comparable to high performance, autoclave cured composites; and excellent property retention after cryogenic and thermal cycling. These materials have been used to manufacture many composite parts using various fabrication processes including hand lay-up, tow placement, filament winding, resin transfer molding and vacuum assisted resin transfer molding.},
doi = {},
url = {https://www.osti.gov/biblio/463645}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 16 00:00:00 EST 1997},
month = {Thu Jan 16 00:00:00 EST 1997}
}

Conference:
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