| 主权项 |
1. A method of forming a plurality of fibers, comprising the steps of:
placing a polymer solution in a vessel comprising a spinneret; wherein the polymer solution comprises a polymer and a solvent, the polymer solution has a gelation temperature and a viscosity, the solvent has a boiling point, the temperature of the polymer solution in the vessel is in the range from the boiling point of the solvent to the gelation temperature, and the viscosity of the polymer solution is less than about 150 Poise; and electrostatically drawing the polymer solution through the spinneret into an electric field, wherein the temperature of the polymer solution as it is drawn through the spinneret is in the range from about 15° C. below the gelation temperature to the gelation temperature, thereby depositing a plurality of fibers on a collection surface; wherein the spinneret is separated from the collection surface by a space. |
