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Poly(ethylene‐ co ‐methacrylic acid) copolymer as an effective compatibilizer of LDPE/wood flour composite
Author(s) -
Sedláčková Miriam,
Lacík Igor,
Chodák Ivan
Publication year - 2001
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200106)170:1<157::aid-masy157>3.0.co;2-n
Subject(s) - low density polyethylene , materials science , composite material , ultimate tensile strength , copolymer , composite number , polyethylene , methacrylic acid , ternary operation , wood flour , polymer , computer science , programming language
The mechanical properties of a ternary system consisting of low density polyethylene (LDPE), poly(ethylene‐ co ‐methacrylic acid) copolymer (EMAA) and wood flour (WF) were investigated. For a better understanding of the mutual interactions between the components, binary blends LDPE/EMAA and EMAA/WF were studied as well, and the results were compared with published data for LDPE/WF composite. Mechanical properties for LDPE/EMAA blend exhibit almost additive behavior, while the properties for EMAA/WF mixtures are similar to those of composites LDPE/WF compatibilized in situ by peroxide crosslinking. In ternary blends, an addition of 5 to 10 wt.% of EMAA is sufficient to achieve high tensile strength and Young modulus. The beneficial effect of the copolymer is explained by introducing a close contact between the organic filler and polyolefinic matrix on the phase boundaries.