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Chemistry and Industry of Forest Products ›› 2015, Vol. 35 ›› Issue (6): 27-32.doi: 10.3969/j.issn.0253-2417.2015.06.005

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Modification of Wood Powder by Esterification for the Production of Bio-based Plastic Material

HANG Fei, LUO Yan-qing, HONG Jian-guo   

  1. College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
  • Received:2014-12-25 Online:2015-12-25 Published:2015-12-28

Abstract: Mulberry branches wood powder was used as the raw material for preparation of bio-based plastic material.After ball milling, wood powder was first esterified by phthalic anhydride(PA) using 4-dimethylaminopyridine (DMAP)as the catalyst in dimethyl sulfoxide(DMSO)as the dispersion medium.The effects of temperature, time and the weight of reagents on weight percent gain(WPG)and mechanical property of modified production were studied.The results showed that esterified lignocellulosic material could be used as bio-based plastic injection molding product with whole components.Under the optimum conditions, the mass growth rate and melt index of the modified product were 98.8% and 0.903 g/min, respectively, and the modified product was found with good thermoplastic and mechanical properties with the tensile strength of 24.1 MPa and the flexural strength of 41.9 MPa.

Key words: lignocellulosic biomass, phthalic anhydride, esterifying modification, thermoplastic, bio-based plastic material

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