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Soluble and Self-Pressurizing Tooling for Thermoplastic Composites

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Soluble and Self-Pressurizing Tooling for Thermoplastic Composites


High temperature thermoplastic composite systems offer the possibilities of high impact resistance, no-shelf life, and shorter process cycle times compared to thermoset systems.  Process temperatures of these materials can exceed 700ºF.  Under these conditions, tooling materials used for conventional thermosets may or may not work.  Tooling selection becomes even harder for trapped configurations in which the tooling cannot be easily removed from the cured part.  New removable tooling options that function under these high thermal conditions will allow thermoplastic composites to find broader use in industry.  We report on progress on materials that self-pressurize when heated in a confined tool and water soluble mandrels that are stable to >700ºF.  Our study investigates the fundamental behavior of high temperature self-pressurizing materials, high temperature soluble mandrels, and their use in forming thermoplastic composite geometries.  A case study on forming a test geometry is presented.


Author: Zachary Wing


Conference: SAMPE Seattle 2017


SKU/Code: SE17--0788

Pages: 11

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