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Improved properties by hydrogen bonding interaction of poly(lactic acid)/palygorskite nanocomposites for agricultural products packaging
Author(s) -
Jiang Yumei,
Han Shunyu,
Zhang Shenggui,
Li Jixin,
Huang Gaobao,
Bi Yang,
Chai Qiang
Publication year - 2014
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.22683
Subject(s) - materials science , nanocomposite , hydrogen bond , scanning electron microscope , palygorskite , ultimate tensile strength , fourier transform infrared spectroscopy , x ray photoelectron spectroscopy , composite material , lactic acid , chemical engineering , transmission electron microscopy , molecule , organic chemistry , nanotechnology , chemistry , adsorption , biology , bacteria , engineering , genetics
Poly(lactic acid) (PLA)/palygorskite (PA) nanocomposites were fabricated through melt blending. The significant finding by Fourier transformed infrared spectra and X‐ray photoelectron spectroscopy was that the hydrogen bonding interaction between PA surface and PLA matrix. Due to the hydrogen bonding interaction, the PA particles could be well dispersed and distributed in the PLA matrix, which had been further confirmed by scanning electron microscopy and transmission electron microscopy results. Therefore, PLA/PA nanocomposites revealed the significant improvements in tensile properties, resulting in the potential application for agricultural products packaging. Due to PA aggregates, the degree of hydrogen bonding decreased with the increasing content of PA in the matrix, and the appropriate PA content is 3% (by weight). POLYM. COMPOS., 35:468–476, 2014. © 2013 Society of Plastics Engineers