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Preparation and Properties of Thermoplastic Starch/Montmorillonite Nanocomposite Using N-(2-Hydroxyethyl)formamide as a New Additive

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Abstract

N-(2-Hydroxyethyl)formamide (HF) was synthesized efficiently and used as a new additive to prepare thermoplastic starch/montmorillonite nanocomposite (TPS/MMT). Here, HF acted as both plasticizer for TPS and swelling agent for MMT. The hydrogen bond interaction among HF, starch and MMT was proven by Fourier-transform infrared (FT-IR) spectroscopy. By scanning electron microscope (SEM), starch granules were completely disrupted. Atomic force microscopy demonstrated that partially exfoliated TPS/MMT nanocomposite was formed. The crystallinity of corn starch, MMT, HF-plasticized TPS (HTPS) and TPS/MMT nanocomposite was characterized by X-ray diffraction (XRD). Thermal stability of HTPS and TPS/MMT was determined by thermogravimetric analysis (TGA). The water resistance of TPS/MMT nanocomposite increased compared with that of pure HTPS. Tensile strengths of TPS/MMT nanocomposites were higher than those of HTPS, but just the reverse for elongations at break.

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Authors and Affiliations

  1. School of Science, Tianjin University, Tianjin, 300072, People’s Republic of China

    Hongguang Dai, Fengying Geng, Jiugao Yu & Xiaofei Ma

  2. Bioproducts and Bioprocesses National Science Program, Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK, S7N 0X2, Canada

    Peter R. Chang

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  1. Hongguang Dai
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  2. Peter R. Chang
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  3. Fengying Geng
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  4. Jiugao Yu
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  5. Xiaofei Ma
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Correspondence to Jiugao Yu.

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Dai, H., Chang, P.R., Geng, F. et al. Preparation and Properties of Thermoplastic Starch/Montmorillonite Nanocomposite Using N-(2-Hydroxyethyl)formamide as a New Additive. J Polym Environ 17, 225–232 (2009). https://doi.org/10.1007/s10924-009-0142-y

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  • DOI: https://doi.org/10.1007/s10924-009-0142-y

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