|
|
Article: Characterization of the Orientation in Synthetic Polymer Sheets Using Far-Infrared Radiation.(Brief Article)
- Article from:
- Polymer Engineering and Science
- Article date:
- December 1, 1999
- Author:
CopyrightCOPYRIGHT 1999 Society of Plastics Engineers, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
Molecular orientation and mass distribution have been measured in various synthetic polymers using a characterization technique developed by the authors. This method is based on the transmission of polarized far-infrared radiation. Fairly thick samples (polyethylene up to one centimeter thick) can be tested easily with this nondestructive approach. Spatial resolution in the millimeter range is possible. This allows the characterization of various industrial products made of nylon, polyethylene, polypropylene or polyesters, such as liquid containers, injection-molded parts, thick extruded or drawn sheets and rods, etc. Potential scientific and industrial applications are ...
Related newspaper, magazine, and journal articles:
|
|
Article: Invisible, Incredible, Infrared.(infrared ...
World and I;
June 1, 2000 ;
700+ words
... ... of infrared light. Although infrared radiation has been known for two centuries ... the term calorific rays to infrared radiation, with the prefix infra meaning "below." Visible and infrared radiation are parts of the broad, continuous ...
|
|