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Synthesis and tensile properties of a novel composite of Chlorella and polyethylene
Author(s) -
Otsuki Toshi,
Zhang Farao,
Kabeya Hiroshi,
Hirotsu Takahiro
Publication year - 2004
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.13650
Subject(s) - ultimate tensile strength , composite number , polyethylene , chlorella , materials science , maleic anhydride , composite material , chemical modification , chemical engineering , polymer , polymer chemistry , algae , botany , biology , copolymer , engineering
A novel composite of the green microalga Chlorella sp. with polyethylene (PE) was synthesized through chemical modification of PE with maleic anhydride (MA), with respect to the biological fixation of CO 2 with Chlorella sp. The interaction of Chlorella grains with a PE matrix is strikingly enhanced by the chemical modification of PE with MA. The tensile strength of a Chlorella –MA‐modified PE composite (Ch–MPE) with a Chlorella content of 40 wt % is more than 2 times greater than that of a composite derived from unmodified PE. The marked increase in tensile strength is attributed to the formation of chemical bonds between Chlorella grains and the PE matrix, from IR and SEM studies. Because of the satisfactory thermal plasticity of Ch–MPE, it can be easily shaped into plate and dishlike moldings by a heat‐pressurizing method. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 92: 812–816, 2004