Development of Thermoplastic Structural Adhesives

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Abstract:

Six different classes of thermoplastic polymers having high temperature capabilities 300 deg F service were surveyed after studying available data five polymers from three different classes were screened for adhesive shear properties. The screening was conducted on two polysulfones, PKXA and P-1700 one polyethersulfone, 100P and two polyimides, NR150A2 and 2080D. Screening test results indicated that all five polymers were good potential adhesives. Two polymers, PKXA and NR150A2, were selected for in-depth studies in surface preparation and environmental resistance. The environmental resistance of PKXA and NR150A2 adhesively bonded DCB and lap shear specimens were evaluated in thermal, salt water, humidity and fluid environments. Test results indicated that the PKXA DCB specimens were resistant to significant crack growth in all environments. The shear strength of PKXA specimens was not significantly reduced in thermal or room temperature JP-4 environments. NR150A2 DCB specimens were not significantly affected by humidity and MIL-H-5606 environments, but the lap shear specimens were significantly affected in thermal, JP-4 RT and 160 deg F and MIL-L-7808 environments.

Author(s):
Hill, S. G. ; Hoggatt, J. T.
Author Organization(s):
BOEING AEROSPACE CO SEATTLE WA BOEING MILITARY AIRPLANE DEVELOPMENT
Descriptive Note:
Final rept. 5 Nov 1975-1 Mar 1977
Pagination:
0089

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):
D-180-18753-3
Contract/Grant Number(s):
N00019-76-C-0170
Monitor Series:
NAVAIR
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_5.3.3_Develop Strategy; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_5.6.3_Assess Achievement of Objectives; JCA_5.6_Monitor; JCA_5.2_Understand; JCA_6.4.1_Secure Information Exchange; JCA_6_Net Centric; JCA_1.2.5_Lessons Learned; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_3.2_Engagement; JCA_3_Force Application; JCA_6.4_Information Assurance
Modernization Areas:
Fully Networked C3
Communities of Interest:
Ground and Sea Platforms
Descriptor(s):
*ADHESIVES, *THERMOPLASTIC RESINS, ADHESIVE BONDING, AGING(MATERIALS), ALUMINUM, ANODIC COATINGS, CRACK PROPAGATION, CRACKING(FRACTURING), HUMIDITY, POLYETHERS, POLYIMIDE RESINS, POLYPHENYLENES, POLYSULFONES, PREPARATION, RESISTANCE, SALT WATER, SHEAR STRENGTH, STAINLESS STEEL, STRUCTURES, SUBSTRATES, SULFIDES, SULFONES, SURFACE PROPERTIES, THERMAL DEGRADATION, TITANIUM
Field(s)/Group(s):
Organic Chemistry, Adhesives, Seals and Binders
Report Date:
1977 Mar 01