Method for making thin polypropylene film
An economical method is provided for making uniform thickness polypropylene film as thin as 100 Angstroms. A solution of polypropylene dissolved in xylene is formed by mixing granular polypropylene and xylene together in a flask at an elevated temperature. A substrate, such as a glass plate or microscope slide is immersed in the solution. When the glass plate is withdrawn from the solution at a uniform rate, a thin polypropylene film forms on a flat surface area of the glass plate as the result of xylene evaporation. The actual thickness of the polypropylene film is functional of the polypropylene in xylene solution concentration, and the particular withdrawal rate of the glass plate from the solution. After formation, the thin polypropylene film is floated from the glass plate onto the surface of water, from which it is picked up with a wire hoop.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- Dept. of Energy
- Application Number:
- ON: DE87007278
- OSTI ID:
- 6952454
- Country of Publication:
- United States
- Language:
- English
Similar Records
The effect of selenium on the electrochemical behavior and corrosion of Pb-Sn alloys used in lead-acid batteries
Quantifying Properties for a Mechanistic, Predictive Understanding of Aqueous Impact on Aging of Medium and Low Voltage AC and DC Cabling in Nuclear Power Plants
Related Subjects
POLYPROPYLENE
PRODUCTION
EVAPORATION
SOLUTIONS
SUBSTRATES
THICKNESS
THIN FILMS
XYLENES
ALKYLATED AROMATICS
AROMATICS
DIMENSIONS
DISPERSIONS
FILMS
HYDROCARBONS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PHASE TRANSFORMATIONS
POLYMERS
POLYOLEFINS
360601* - Other Materials- Preparation & Manufacture