Dynamic mechanical and perforation impact behavior of all-PP composites containing beta-nucleated random PP copolymer as matrix and stretched PP homopolymer tape as reinforcement: effect of draw ratio of the tape

TitleDynamic mechanical and perforation impact behavior of all-PP composites containing beta-nucleated random PP copolymer as matrix and stretched PP homopolymer tape as reinforcement: effect of draw ratio of the tape
Publication TypeJournal Article
Year of Publication2011
AuthorsAbraham, TN, Wanjale, S, Siengchin, S, Karger-Kocsis, J
JournalJournal of Thermoplastic Composite Materials
Volume24
Issue3
Pagination377-388
Date PublishedMAY
ISSN0892-7057
Keywordsall-polypropylene composite, draw ratio, dynamic mechanical thermal analysis, instrumented falling weight impact, polypropylene
Abstract

Cross-ply all-polypropylene (PP) composite laminates were prepared by hot consolidation after tape winding combined with film stacking. Alpha (alpha) PP tapes of different draw ratios (DR = 8 and 12), produced by online extrusion stretching, served as reinforcements. Beta (beta)-nucleated random PP copolymer, introduced in the form of a film, composed the matrix. The E-modulus of the PP tapes increased whereas their density decreased with increasing DR. The volume fraction of the reinforcement and the void content were estimated using optical microscopic images. The all-PP composites were subjected to dynamic mechanical thermal analysis, flexural, and instrumented falling weight impact tests. It was found that with increasing draw ratio of the alpha-PP tapes, the stiffness, strength, and perforation resistance of the composites were improved.

DOI10.1177/0892705710391402
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)

0.81

Divison category: 
Polymer Science & Engineering