Characterization of non-MDA-containing bismaleimide resins
Recent regulatory action by OSHA for the workplace exposure to 4,4'-methylenedianiline (MDA) is generating considerable interest in developing non-MDA-containing thermoset resins. One such material is a new bismaleimide, 2,2'-bismaleimido(1,2 phenylthioethane), designated APO-BMI. This material has been evaluated and pilot production quantities produced for replacement of a commercially available MDA-containing bismaleimide for syntactic foam applications. A diol extended version of the APO-BMI has also been characterized. Thermal analysis has been used extensively to characterize these three materials. Comparative data for these three resins will be presented and will include cure cycle optimization, glass transition and resin reactivity measurements by DSC, thermal and oxidative stability by TGA and coefficient of linear thermal expansion and Tg by TMA. 2 refs., 7 figs.
- Research Organization:
- Allied-Signal Aerospace Co., Kansas City, MO (USA). Kansas City Div.
- DOE Contract Number:
- AC04-76DP00613
- OSTI ID:
- 7045472
- Report Number(s):
- BDX-613-3926; CONF-8810123-2; ON: DE88016676
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360601 -- Other Materials-- Preparation & Manufacture
360602 -- Other Materials-- Structure & Phase Studies
360603* -- Materials-- Properties
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
IMIDES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERIZATION
POLYMERS
PROCESSING
RECRYSTALLIZATION
RESINS
THERMAL ANALYSIS
YIELDS