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林产化学与工业 ›› 2017, Vol. 37 ›› Issue (6): 43-48.doi: 10.3969/j.issn.0253-2417.2017.06.006

• 研究报告 • 上一篇    下一篇

基于纤维素-糠醛-油脂的热塑性材料的合成和性能表征

卢传巍1, 刘少锋1, 王春鹏1,2, 储富祥1,2, 王基夫1,2   

  1. 1. 中国林业科学研究院 林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局 林产化学工程重点开放性实验室;江苏省生物质能源与材料重点实验室, 江苏 南京 210042;
    2. 中国林业科学研究院 林业新技术研究所, 北京 100091
  • 收稿日期:2017-03-09 出版日期:2017-12-25 发布日期:2018-01-05
  • 通讯作者: 王基夫,研究员,硕士生导师,主要从事生物质材料功能化研究;E-mail:wjf118@126.com E-mail:wjf118@126.com
  • 作者简介:卢传巍(1992-),男,山东德州人,硕士生,主要从事生物质材料功能化研究工作
  • 基金资助:
    国家自然科学基金资助项目(31570579);中国林科院中央级公益性科研院所基本科研业务费专项资金(CAFYBB2017ZF003)

Synthesis and Characterization of Thermoplastic Materials Derived from Cellulose, Furfural and Grease

LU Chuanwei1, LIU Shaofeng1, WANG Chunpeng1,2, CHU Fuxiang1,2, WANG Jifu1,2   

  1. 1. Institute of Chemical Industry of Forestry Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
    2. Research Institute of Forestry New Technology, CAF, Beijing 100091, China
  • Received:2017-03-09 Online:2017-12-25 Published:2018-01-05

摘要: 以乙基纤维素(EC)、甲基丙烯酸四氢糠基酯(THFMA)和甲基丙烯酸月桂酯(LMA)为原料,通过"从主链接枝"的原子转移自由基聚合(ATRP)法制备了基于纤维素-糠醛-油脂的全生物质基热塑性弹性体材料EC-g-P(LNA-co-THFMA),采用FT-IR、1H NMR、GPC、DSC和应力-应变测试对制备的接枝共聚物进行结构表征和性能分析,并初步探讨了THFMA/LMA投料比对接枝共聚物性能的影响。DSC测试表明:当n(THFMA):n(LMA)为200:100~400:100时,乙基纤维素接枝共聚物的玻璃化转变温度(Tg)在13~27℃;机械性能研究发现,随着投料中THFMA比例的增加,拉伸强度由5.1 MPa逐渐增加到13.7 MPa;通过与具有相同THFMA/LMA组成的线性共聚物P(LMA-co-THFMA)相比,EC的引入使得拉伸强度提高了3.7倍;在制备的EC基接枝共聚物投料中EC质量分数为0.91%~1.42%,这表明少量EC的引入便可极大地改善接枝共聚物的机械性能。

关键词: ATRP, 乙基纤维素, 热塑性弹性体, 表征

Abstract: Biomass-based thermoplastic elastomer materials derived from cellulose, furfural and grease were prepared by "graft from" ATRP using ethyl cellulose(EC), tetrahydrofurfuryl methacrylate(THFMA) and lauryl methacrylate(LMA). FT-IR, 1H NMR and GPC were applied to characterize the structure of graft copolymers, and proved the successful preparation of graft copolymer. The DSC analysis showed that the Tg of EC graft copolymers were between 13℃ and 27℃. The mechanical properties test showed that the tensile strength increased from 5.1 MPa to 13.7 MPa with the increasing of THFMA content in the feed. Compared to the linear copolymer which has the same THFMA/LMA composition, the EC graft copolymer possessed 3.7 times higher tensile strength. It is worth noting that the EC content in the feeding is between 0.91%-1.42%, which indicated that a small amount of EC could greatly improve the mechanical properties of graft copolymer.

Key words: ATRP, ethyl cellulose(EC), thermoplastic elastomer, characterization

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