Accession Number:

AD0672902

Title:

RHEO-OPTICS OF HIGH SPEED DEFORMATION: II. POLYETHYLENE AND POLYBUTENE-1.

Descriptive Note:

Technical rept.,

Corporate Author:

MASSACHUSETTS UNIV AMHERST POLYMER RESEARCH INST

Personal Author(s):

• Erhardt,Peter F.
• Stein,Richard S.

Report Date:

1968-07-01

Pagination or Media Count:

21.0

Abstract:

The photographic light scattering technique was used to study the relationship between sample deformation and spherulite deformation during rapid stretching of polyethylene and polybutene-1 films. Scattering patterns are interpreted in terms of spherulite deformation theory to give the elongation ratio of the spherulite which is compared with that of the sample. At low elongations spherulite deformation is less than or equal to that of the sample indicating that an affine deformation model is a reasonable approximation. At high elongations the spherulite elongation ratio is greater than that of the sample. This is due to inhomogeneous deformation where the local deformation of the sample in the scattering region is greater than the macroscopic deformation. Author

Descriptors:

• (*POLYETHYLENE PLASTICS
• DEFORMATION)
• (*BUTADIENES
• DEFORMATION)
• (*RHEOLOGY
• ELASTOMERS)
• ELONGATION
• OPTICAL ANALYSIS
• SCATTERING
• FILMS
• CRYSTALS
• PHOTOGRAPHIC ANALYSIS

Subject Categories:

• Plastics
• Elastomers and Rubber
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE