Extended Flow Life Laminating Resin System

reportActive / Technical Report | Accession Number: ADB014155 | Open PDF

Abstract:

Epoxy resincuring agentcatalyst combinations were investigated in efforts to obtain state-of-the-art performance 350 F from graphite fiber reinforced composites coupled with prolonged prepreg out-times greater than 75 days under ambient shop conditions. Resins evaluated included multifunctional commercially available glycidyl ethers and glycidyl amines. Curing agent studies were limited to potentially latent, high functionality systems and included hydrazides, amino-hydrazides and aromatic diamines with attenuated reactivity. The basic approach was to employ curing agents which would exhibit virtual insolubility in the resin combinations at slightly elevated prepregging temperatures less than 150 F but becomes soluble at processing approximately equal to 250 F temperatures.

Author(s):
Harrison, E. S. ; Delano, C. B.
Author Organization(s):
WHITTAKER CORP SAN DIEGO CA RESEARCH AND DEVELOPMENT DIV
Descriptive Note:
Final rept. 1 Oct 1974-31 Jan 1976
Supplementary Note:
Prepared in Cooperation with Acurex Corp., Mountain View, Calif. Aerotherm Div. DOI: 10.21236/ADB014155
Pagination:
0072

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
WAO-7227, WRD-MJO-3048
Contract/Grant Number(s):
F33615-74-C-5181
Task Number(s):
734003
Project Number(s):
AF-7340
Monitor Series:
TR-76-49, AFML
 Subject Terms
Joint Capability Areas:
JCA_1.3_Human Capital Management; JCA_1_Force Support; JCA_1.3.2_Personnel Management; JCA_5_Command and Control
Communities of Interest:
Air Platforms
Descriptor(s):
*CATALYSTS, *CURING AGENTS, *EPOXY RESINS, *FIBER REINFORCED COMPOSITES, *GRAPHITED MATERIALS
Field(s)/Group(s):
Aircraft, Laminates and Composite Materials
Keyword(s):
DESORPTION, VISCOSITY, FABRICATION, FLOW, MOISTURE, IMPREGNATION, GLYCIDYL ETHER, GLYCIDYL AMINES, HYDRAZINE, AMINO HYDRAZIDES, AROMATIC COMPOUNDS, AMINES, AIRFRAMES, AGING(MATERIALS), HIGH TEMPERATURE, SULFONE 4 4 DIAMINODIPHENYL, PARTICLE SIZE, ZINC LINORESINATE, THERMOMECHANICS, AEROSPACE SYSTEMS, STOICHIOMETRY, LAMINATES, S L CHANGE 8303
Report Date:
1976 Jun 01