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林产化学与工业 ›› 2007, Vol. 27 ›› Issue (3): 111-115.

• 研究报告 • 上一篇    下一篇

蔗渣液化产物改性环氧树脂的制备和性能研究

谌凡更1, 谢涛2, 卢卓敏2   

  1. 1. 华南理工大学 制浆造纸工程国家重点实验室, 广东 广州 510640;2. 中国科学院 广州化学研究所 纤维素化学重点实验室, 广东 广州 510650
  • 收稿日期:2006-03-06 修回日期:1900-01-01 出版日期:2007-06-30 发布日期:2007-06-30

Preparation and Performances of Modified Epoxy Resin from Liquefied Bagasse

CHEN Fan-geng1, XIE Tao2, LU Zhuo-min2   

  1. 1. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China;2. Key Laboratory of Cellulose and Lignocellulosics Chemistry, Guangzhou Institute of Chemistry, CAS, Guangzhou 510650, China
  • Received:2006-03-06 Revised:1900-01-01 Online:2007-06-30 Published:2007-06-30

摘要: 将蔗渣在碳酸乙烯酯中以硫酸为催化剂进行快速液化,然后将液化产物与双酚A缩水甘油醚混合,或将液化产物与双酚A及环氧氯丙烷反应,可制成环氧树脂胶黏剂.该胶黏剂用三乙烯基四胺固化剂固化.讨论了环氧树脂制备方式、液化产物含量和固化剂用量对所得环氧树脂黏合强度及固化物的力学性能的影响,并用DSC和TGA对环氧树脂固化物的热稳定性进行了表征.发现本实验制备的环氧树脂的黏接剪切强度和热稳定性优于传统的双酚A型环氧树脂,用液化产物通过化学改性方法制备的环氧树脂性能优于用共混方法制得的环氧树脂.

关键词: 蔗渣, 液化, 环氧树脂

Abstract: Bagasse was rapidly liquefied in ethylene carbonate in the presence of sulfuric acid as catalyst. The liquefied product was used to prepare epoxy resin as adhesive in two ways. One is to mix the liquefied bagasse with diglycidyl ether of bisphenol A and the other is to react the mixture of liquefied bagasse and bisphenol A with epichlorohydrin. The adhesive resin was cured with triethylene tetramine at 100℃ within 2 h. Mechanical properties of the prepared epoxy resin were evaluated, and thermal properties were also studied by differential scanning calorimetry and thermogravimetry. Shearing strength of the cured resin was 22.5 MPa, which was drastically superior to normal epoxy resin. Thermal stability of epoxy resin from liquefied bagasse was also superior to that of blended expoxy resin.

Key words: bagasse, liquefaction, epoxy resin

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