Advanced Search

Journal Navigation

Journal Home

Subscriptions

Archive

Contact Us

Table of Contents

Click here to sign up for SAGE Journal Email Alerts today!

Sign In to gain access to subscriptions and/or personal tools.
High Performance Polymers
This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Right arrow Citing Articles via Scopus
Google Scholar
Right arrow Articles by Hou, T H
Right arrow Articles by Bryant, R G
Right arrow Search for Related Content
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Processing and Properties of IM7/LARCTM -Si Polyimide Composites

T H Hou

R G Bryant

NASA Langley Research Center, Hampton, VA 23681-0001, USA

LARCTM-SI (NASA Langley Research Center-Soluble Imide) is an aromatic thermoplastic polyimide. LARCTM-SI is synthesized from equimolar amounts of oxydiphthalic anhydride (ODPA), 3, 3', 4, 4'-biphenyltetracarboxylic dianhydride (BPDA) and the equivalent amount of 3, 4'-oxydianiline (3, 4'-ODA). Phthalic anhydride (PA) was used as an endcapper to control molecular weight. A 30% solid LARCTM-SI solution (in NMP/Xylene: 9/1 v/v) with 3% stoichiometric imbalance was made into unidirectional long-fibre-reinforced prepregs. Thermal properties, volatile depletion behaviour and resin rheology were thoroughly characterized. Using this information, two composite moulding cycles were developed that consistently yielded well consolidated, void-free laminates. Composite mechanical properties such as short-beam shear strength, longitudinal and transverse flexural strength and flexural modulus, longitudinal tensile strength and notched and un-notched compression strengths, fracture toughness, open-hole compression strength and compression after impact (CAI) strength were measured at room temperature (RT) and elevated temperatures. LARCTM-SI composite exhibited very good toughness and damage tolerance. The interlaminar fracture toughness and the CAI strength were measured at 1.72 kJ m–2 at 35.2 GPa respectively.

High Performance Polymers, Vol. 9, No. 4, 437-448 (1997)
DOI: 10.1088/0954-0083/9/4/007
Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?


This article has been cited by other articles:


Home page
 Journal of Thermoplastic Composite MaterialsHome page
L. M. Nicholson and T. S. Gates
The Influence of Cross-Link Density on the Creep Compliance of an Advanced Polyimide
Journal of Thermoplastic Composite Materials, November 1, 2001; 14(6): 477 - 488.
[Abstract] [PDF]