木粉酯化改性制备生物基塑料

doi:10.3969/j.issn.0253-2417.2015.06.005

林产化学与工业 ›› 2015, Vol. 35 ›› Issue (6): 27-32.doi: 10.3969/j.issn.0253-2417.2015.06.005

木粉酯化改性制备生物基塑料

杭飞, 罗彦卿, 洪建国

南京林业大学生物与环境学院, 江苏南京 210037

收稿日期:2014-12-25 出版日期:2015-12-25 发布日期:2015-12-28
通讯作者: 洪建国,教授,博士生导师,主要从事固体废弃物资源化利用研究;E-mail:jghongnj@163.com E-mail:jghongnj@163.com
作者简介:杭飞(1990—),女,江苏无锡人,硕士生,研究方向为固体废弃物资源化利用研究
基金资助:
林业公益性行业科研专项(201204803);江苏高校优势学科建设工程资助项目(无编号)

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

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

College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China

Received:2014-12-25 Online:2015-12-25 Published:2015-12-28

摘要/Abstract

摘要： 以胡桑枝条木粉为原料制备木质纤维类生物基塑料,木粉先经过球磨预处理后,在二甲亚砜(DMSO)分散介质中,以邻苯二甲酸酐(PA)为改性试剂, 4-二甲氨基吡啶(DMAP)为催化剂对其进行酯化改性,并考察了反应温度、时间和试剂用量对改性产物质量增长率及材料力学性能的影响。研究结果表明,以木质纤维为原料,可以成功制备注塑级的生物基塑料,实现木质纤维原料全组分的高效利用。在最佳工艺条件下,经改性制备材料的质量增长率为98.8%,熔融指数0.903 g/min,其拉伸和弯曲强度分别达到24.1和41.9 MPa,具有较好的热塑性和力学性能。

关键词: 木质纤维类生物质, 邻苯二甲酸酐, 酯化改性, 热塑性, 生物基塑料

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(W_PG)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

中图分类号:

TQ35

杭飞, 罗彦卿, 洪建国. 木粉酯化改性制备生物基塑料[J]. 林产化学与工业, 2015, 35(6): 27-32.

HANG Fei, LUO Yan-qing, HONG Jian-guo. Modification of Wood Powder by Esterification for the Production of Bio-based Plastic Material[J]. Chemistry and Industry of Forest Products, 2015, 35(6): 27-32.

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木粉酯化改性制备生物基塑料

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

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