Effect of polyethylene methyl acrylate copolymer on thermal, morphological, and mechanical properties of polypropylene copolymer blown films

被引：0
|
作者：
Gururajan, Giri [1 ]
Froude, Victoria [1 ]
Riutta, Stephen [1 ]
Thomas, Aline [1 ]
Gao, Ian [1 ]
Samuels, S.L. [2 ]
Massouda, D.F. [2 ]
Weinberg, M. [2 ]
Ogale, A.A. [1 ]
机构：
[1] Department of Chemical and Biomolecular Engineering, Center for Advancea Engineering Fibers and Films (CAEFF), Clemson University, Clemson, SC
[2] Central Research and Development, DuPont Company, Wilmington, DE
来源：
Journal of Applied Polymer Science | 1600年 / 107卷 / 04期
关键词：
Blends of polypropylene copolymer (PP-cp) and poly(ethylene methyl acrylate) [poly(EMA)] copolymer blends were processed by blown film extrusion. The orientation and crystallinity of PP-cp matrix in the blend did not change significantly with the addition of EMA. The low machine direction and transverse direction tear strengths; which are observed for neat polypropylene blown films more than doubled at 6 wt % or higher content of EMA. The increase in tear properties was mainly attributed to a fine dispersion of EMA in the matrix with an average particle size of 100-500 nm and the formation of elongated domains. The dispersed nonrounded EMA domains; resulting from the blown-film process; enhance better energy dissipation mechanism with the formation of an extended plastic zone in the blend films as compared with that in pure PP-cp films. © 2007 Wiley Periodicals; Inc;
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页码：2500 / 2508
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