Effect of heat treatment on dyeability, glass transition temperature, and tensile properties of polyacrylonitrile fibers (orlon 42)

Deniers of treated and untreated fibers were determined and the „ results were used in calculations of tenacity and initial modulus. Tensile properties were measured on a constant—rate—of—extension machine. Shrinkage of treated and untreated fibers were measured after they were boiled in water for 15 min. The glass transition temperatures (Tg) were obtained by differential scanning calorimetry. The ratio of the intensities of the CN/CH stretching bands were found by infrared spectroscopy, using the KBr method

Name thesis:degree_name

Ph. D.

Level thesis:degree_level

doctoral

Discipline thesis:degree_discipline

Clothing and Textiles

Department dc:contributor.department

Clothing and Textiles

Grantor dc:publisher

Virginia Polytechnic Institute and State University

Year dc:date.issued

1986

Author dc:creator

• Sarmadi, Abdolmajid

Chair dc:contributor.committeechair

• Noel, Charles J.

Committee members dc:contributor.committeemember

• Birch, Jeffrey B.
• Northon, Marjorie J. T.
• Densmore, Barbara E.
• Mason, John G.

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Handle dc:identifier.uri

http://hdl.handle.net/10919/49836

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/49836