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林产化学与工业 ›› 2020, Vol. 40 ›› Issue (6): 70-76.doi: 10.3969/j.issn.0253-2417.2020.06.009

• 研究报告 • 上一篇    下一篇

桉树生物质制备高邻位酚醛树脂纤维的研究

刘灿1(), 任宇1, 李欣1, 刘建祥1, 史正军1, 郑志锋2,*()   

  1. 1. 西南地区林业生物质资源高效利用国家林业和草原局重点实验室; 林业生物质资源高效利用技术国家地方联合工程研究中心; 西南林业大学 材料科学与工程学院, 云南 昆明 650224
    2. 厦门大学 能源学院, 福建 厦门 361102
  • 收稿日期:2020-06-29 出版日期:2020-12-28 发布日期:2020-12-29
  • 通讯作者: 郑志锋 E-mail:liucanswfu@163.com;zhifeng.zheng@xmu.edu.cn
  • 作者简介:郑志锋, 教授, 博士生导师, 主要从事生物质能源以及生物质材料的研究; E-mail:zhifeng.zheng@xmu.edu.cn
    刘灿(1982-), 男, 山东菏泽人, 讲师, 博士, 硕士生导师, 主要从事生物基材料与生物质碳材料方面的研究; E-mail:liucanswfu@163.com
  • 基金资助:
    国家重点研发计划资助项目(2017YFD0601003);云南省重大科技专项计划(农业)(2018ZG004);云南省农业联合青年基金项目(2017FG001-072)

Preparation of High-ortho Phenolic Resin Fiber from Eucalyptus Residue

Can LIU1(), Yu REN1, Xin LI1, Jianxiang LIU1, Zhengjun SHI1, Zhifeng ZHENG2,*()   

  1. 1. Key Laboratory of National Forestry and Grassland Administration for Highly-Efficient Utilization of Forest Biomass Resources in the Southwest China; National Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forest Biomass Resources; College of Materials Science and Engineering, Southwest Forestry University, Kunming 650224, China
    2. College of Energy, Xiamen University, Xiamen 361102, China
  • Received:2020-06-29 Online:2020-12-28 Published:2020-12-29
  • Contact: Zhifeng ZHENG E-mail:liucanswfu@163.com;zhifeng.zheng@xmu.edu.cn

摘要:

使用桉树树皮、桉树树杆、造纸黑液木质素为原料制备生物基高邻位酚醛树脂纤维,采用FT-IR、TG、DSC、游离酚标定、力学性能测试等方法对材料性能进行表征,对不同生物质的热塑性酚醛树脂性能、生物质的添加量对酚醛树脂热性能的影响规律、密炼工艺对生物基酚醛树脂纤维的机械性能影响进行了探讨。研究结果表明:木质素基树脂成分组成均一,结构稳定,热稳定性最佳;以木质素为原料,不同木质素和苯酚质量比(木酚比)的生物基酚醛树脂邻对位比(O/P)值相似,邻位反应比例均大于对位;木酚比为1:4时制备的树脂组分均一,性能最好;密炼时间15 min,转速为45 r/min、密炼温度为135℃条件下制备的生物基酚醛树脂纤维性能较优,拉伸强度为168.6 MPa、断裂伸长率为2.1%。

关键词: 桉树剩余物, 高邻位, 酚醛树脂, 纤维

Abstract:

Biomass-based high-ortho phenolic resin fibers were prepared from eucalyptus bark, tree stem, and lignin. FT-IR, TG, DSC and mechanical properties as well as the measurement of free phenol, were used to evaluate the properties of different biomass-based thermoplastic phenolic resins. The influence of the amount of the same kind of biomass on phenolic resins, and the mixing process on mechanical properties of bio-based phenolic resins fiber were alse investigated. The results showed that the composition of lignin-based resin was uniform, the structure was stable, and the thermal stability was the best. The bio-based phenolic resins with three lignin ratios had similar ortho-position(O/P) ratios, and the ortho-position reaction ratios were all greater than the para-position. When the ratio of lignin and phenol was 1:4, the obtained resin had uniform composition and best performance. The internal mixing process could homogenize the resin and avoid overheating, which caused by internal heat generation. Combined with mechanical properties, the optimal conditions of mixing process of bio-based fibers were internal mixing for 15 min, rotation speed of 45 r/min, and internal mixing temperature of 135 ℃. The maximum strength was 168.6 MPa and the elongation at break was 2.1%.

Key words: eucalyptus residue, high-ortho, phenolic resin, fiber

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