Title: High-Toughness, Controlled Flow BMI Prepreg for Aerospace Application
Authors: Madelyn Milligan, Al Haro, Jonathan Hughes, Naoki Matsuura, Adrian Ohlfs, Sam Tollefsen, Toshiya Kamae
Abstract: Existing bismaleimide (BMI) prepreg systems offer high use temperatures for aerospace applications, however they are also prone to low toughness and excessive resin flow during cure. To overcome these difficulties, a novel BMI prepreg system – T1100G/4000 – has been developed, featuring toughening and flow control technologies. It exhibits high compression after impact (CAI) equivalent to a toughened epoxy system, and consistent cured ply thickness (CPT) due to excellent flow control. Additionally, T1100G/4000 showed excellent open hole tensile strength (OHT) and no microcracking after 1200 thermal cycles. The development of this new system as well as the system’s performance will be explored in this paper.
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Conference: SAMPE NEXUS 2021
Publication Date: 2021/06/29
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