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Nasa. langley research center dry powder towpreg system
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Baucom, Robert M. Marchello, Joseph M. |
| Copyright Year | 1990 |
| Description | Dry powder polymer impregnated carbon fiber tows were produced for preform weaving and composite materials molding applications. In the process, fluidized powder is deposited on spread tow bundles and melted on the fibers by radiant heating to adhere the polymer to the fiber. Unit design theory and operating correlations were developed to provide the basis for scale up of the process to commercial operation. Special features of the operation are the pneumatic tow spreader, fluidized bed, resin feeder, and quality control system. Bench scale experiments, at tow speeds up to 50 cm/sec, demonstrated that process variables can be controlled to produce weavable LARC-TPI carbon fiber towpreg. The towpreg made by the dry powder process was formed into unidirectional fiber moldings and was woven and molded into preform material of good quality. |
| File Size | 1956134 |
| Page Count | 54 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920013396 |
| Archival Resource Key | ark:/13960/t9576b629 |
| Language | English |
| Publisher Date | 1990-04-01 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Polymer Matrix Composites Preforms Feeders Powder Particles Radiant Heating Bundles Prepregs Casting Carbon Fibers Quality Control Fluidized Bed Processors Weaving Resins Pneumatics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
