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Preparation and characteristics of a novel nano‐sized calcium carbonate (nano‐CaCo 3 )‐supported nucleating agent of poly( L ‐lactide)
Author(s) -
Han Lijing,
Han Changyu,
Bian Junjia,
Bian Yijie,
Lin Haijuan,
Wang Xuemei,
Zhang Huiliang,
Dong Lisong
Publication year - 2012
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.23095
Subject(s) - nucleation , nano , materials science , chemical engineering , calcium carbonate , differential scanning calorimetry , dispersion (optics) , polymer chemistry , chemistry , composite material , organic chemistry , physics , optics , engineering , thermodynamics
Nano‐sized calcium carbonate (nano‐CaCO 3 )‐supported nucleating agent for poly( L ‐lactide) (PLLA) was prepared by supporting calcium phenylphosphonate (PPCa) on nano‐CaCO 3 surface. The thermal properties of phenylphosphonic acid (PPOA) and nano‐CaCO 3 ‐supported nucleating agent and its dispersion in PLLA matrix were investigated by differential scanning calorimetry and field emission scanning electron microscopy. The results indicated that the formation of nucleating agent supported on nano‐CaCO 3 was attributed to the chemical reaction between nano‐CaCO 3 and PPOA. The nano‐CaCO 3 ‐supported nucleating agents were dispersed evenly in the PLLA matrix even with 5 wt% loading. The supported nucleating agent was added to PLLA to examine its nucleating ability for PLLA. The results of the investigation showed that the nano‐CaCO 3 ‐supported nucleating agent exhibited higher nucleation ability compared to PPCa nucleating agent. POLYM. ENG. SCI., 2012. © 2012 Society of Plastics Engineers