华南理工大学学报(自然科学版) ›› 2017, Vol. 45 ›› Issue (6): 89-95.doi: 10.3969/j.issn.1000-565X.2017.06.014

• 化学化工 • 上一篇    下一篇

离子液体木质素氢解产物制备酚醛树脂

常杰 Kassanov Bekbolat 王菊 刘钧 付严   

  1. 华南理工大学 化学与化工学院,广东 广州 510640
  • 收稿日期:2016-07-22 修回日期:2016-11-04 出版日期:2017-06-25 发布日期:2017-05-02
  • 通信作者: 常杰(1968-),男,教授,博士生导师,主要从事生物基材料与能源研究. E-mail:changjie@scut.edu.cn
  • 作者简介:常杰(1968-),男,教授,博士生导师,主要从事生物基材料与能源研究.
  • 基金资助:

    国家自然科学基金资助项目(21476090);国家重点基础研究发展计划(973 计划)项目(2013CB228104);华南理 工大学中央高校基本科研业务费专项资金资助项目

Synthesis of Phenol-Furfural Resins Using Hydrogenolysis Products of Lignin Regenerated via Ionic Liquid Pretreatment

CHANG Jie KASSANOV Bekbolat WANG Ju LIU Jun FU Yan   

  1. School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2016-07-22 Revised:2016-11-04 Online:2017-06-25 Published:2017-05-02
  • Contact: 常杰(1968-),男,教授,博士生导师,主要从事生物基材料与能源研究. E-mail:changjie@scut.edu.cn
  • About author:常杰(1968-),男,教授,博士生导师,主要从事生物基材料与能源研究.
  • Supported by:

    Supported by the National Natural Science Foundation of China(21476090) and the National Program on Key Basic Research Project of China(973 Program)(2013CB228104)

摘要: 利用高压反应釜在氢气气氛 2MPa、温度 260℃、时间 80min、转速 450r/min 的条 件下,对 1-烯丙基-3-甲基咪唑醋酸盐([AMIM]OAc)预处理竹粉后的再生木质素进行氢 解. 气相色谱 - 质谱联用分析表明,所得木质素氢解产物(HPL)多为短链酚类化合物及含 酚羟基的芳香化合物. 将所得 HPL 代替苯酚制备糠醛 - 苯酚树脂,探究了 HPL 对苯酚的 替代率对酚醛树脂粘结强度、固含量、固化时间、游离醛含量、游离酚含量及黏度的影响. 结果表明,HPL 对苯酚的替代率为 60%时,所得酚醛树脂的粘结强度可达 2. 06MPa,游离 酚含量低于国家标准,固化时间显著缩短. 差示扫描量热分析表明,此替代率下所制备的 木质素基酚醛树脂热稳定性更好.

关键词: 离子液体, 氢解;木质素, 氢解产物, 酚醛树脂

Abstract:

A hydrogenolysis process was performed for regenerated bamboo lignin after [AMIM]OAc pretreatment by using a high-pressure batch autoclave with a rotation rate of 450r/min in 2MPa H 2 atmosphere at 260℃ for 80min,and a GC-MS analysis was conducted,finding that most hydrogenolysis products of lignin (HPL) are phenolic com- pounds with short chains or aromatic compounds containing phenol hydroxyl.Then,HPL was used as a substitution for phenol to synthesize phenol-furfural resins (PFU),and the effects of substitution rate of HPL for phenol on the bond strength,solid content,curing time,free formaldehyde content,free phenol content and viscosity of PFU were investigated.The results show that,at a substitution rate of 60%,the lignin-based PFU is of a bond strength up to 2. 06MPa as well as a free phenol content lower than those regulated by Chinese national standards,and the curing time greatly shortens.Moreover,DSC results indicate that the lignin-based PFU possesses strong thermosta- bility.

Key words: ionic liquid, hydrogenolysis, lignin, hydrogenolysis product, phenol-furfural resin

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