Physicochemical properties of Kevlar 49 fiber

Journal Article · Mon Jan 01 00:00:00 EST 1979 · J. Appl. Polym. Sci.; (United States)

DOI:https://doi.org/10.1002/app.1979.070230106· OSTI ID:6401748

Penn, L ^[1]; Larsen, F

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1. Univ. of California, Livermore

The high-strength, high-modulus Kevlar 49 fiber is widely used today because of its superior properties. The fundamental physicochemical nature of the commerical fiber is discussed. It is an extended chain polymer, poly(p-phenylene terephthalamide), which is highly crystalline. Extensive analysis shows that the material composition is quite consistent from lot to lot and is low in impurities. The fiber absorbs water reversibly; the extent of absorption is related to the ash content. The well-known interaction of the fiber with ultraviolet light is illustrated with spectra, and the thermal stability of the fiber is demonstrated with various thermal analysis techniques.

• OSTI ID: 6401748
• Journal Information: J. Appl. Polym. Sci.; (United States), Vol. 23:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
POLYAMIDES
CHEMICAL PROPERTIES
PHYSICAL PROPERTIES
STRUCTURAL CHEMICAL ANALYSIS
CRYSTAL STRUCTURE
FIBERS
MOISTURE
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
360404* - Materials- Polymers & Plastics- Physical Properties- (-1987)