Interpenetrating polymer network approach to tougher and more microcracking resistant high temperature polymers. I. LaRC-RP40

Journal Article · Sat Oct 01 00:00:00 EDT 1988 · SAMPE J.; (United States)

OSTI ID:6692914

Pater, R H; Morgan, C D

Interpenetrating polymer networks in the form of the LaRC-RP40 resin, prepared by the in situ polymerization of a thermosetting imide prepolymer and thermoplastic monomer reactants, are presently used to obtain toughness and microcracking resistance in a high-temperature polymer. Attention is presently given to the processing, physical, and mechanical properties, as well as the thermooxidative stability, of both the neat resin and the resin as a graphite fiber-reinforced matrix. Microcracking after thermal cycling was also tested. LaRC-RP40 exhibits significant resin fracture toughness improvements over the PMR-15 high-temperature matrix resin. 16 references.

• Research Organization: NASA, Langley Research Center, Hampton, VA (USA); PRC Kentron, Inc., Aerospace Technologies Div., Hampton, VA (USA)
• OSTI ID: 6692914
• Journal Information: SAMPE J.; (United States), Vol. 24
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
POLYMERS
MECHANICAL PROPERTIES
COMPOSITE MATERIALS
CRACKS
FRACTURE PROPERTIES
IMIDES
MATRIX MATERIALS
POLYMERIZATION
RESINS
THERMOPLASTICS
TRANSITION TEMPERATURE
TUNGSTEN
CHEMICAL REACTIONS
ELEMENTS
MATERIALS
METALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PLASTICS
SYNTHETIC MATERIALS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENTS
360603* - Materials- Properties