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Polyimide fibers (Document No: 19980038056)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1997 |
| Description | A polyimide fiber having textile physical property characteristics and the process of melt extruding same from a polyimide powder. Polyimide powder formed as the reaction product of the monomers 3.4'-ODA and ODPA, and endcapped with phthalic anhydride to control the molecular weight thereof, is melt extruded in the temperature range of 340? C. to 360? C. and at heights of 100.5 inches, 209 inches and 364.5 inches. The fibers obtained have a diameter in the range of 0.0068 inch to 0.0147 inch; a mean tensile strength in the range of 15.6 to 23.1 ksi; a mean modulus of 406 to 465 ksi; and a mean elongation in the range of 14 to 103%. |
| File Size | 318384 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19980038056 |
| Archival Resource Key | ark:/13960/t2w42pq26 |
| Language | English |
| Publisher Date | 1997-09-23 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Anhydrides Patents Polyimides Extruding Height Powder Particles Monomers Tensile Strength Molecular Weight Fibers Textiles Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
