PREPARATION AND CHARACTERIZATION OF LIGNIN-BASED EPOXY RESINS

摘要：

Lignin-based epoxy resin (LEP) was prepared from acetic acid lignin (AAL). AAL was prepared from the atmospheric acetic acid pulping of eucalyptus chips. AAL was first phenolated with phenol to obtain phenolized lignin (PL). Then PL was epoxidised with epichlorohydrin (ECH) in alkali medium to obtained LEP. Then LEP was mixed with diglycidyl ether of bisphenol A (E-44) and the mixture was cured with triethylenetetramin (TETA) as the hardener. The initial thermal degradation temperatures (Tds) of the epoxy blends were declined with the increasing LEP content in the mixture. The mass residue at 500 ℃ (MR500) was raised with the increasing LEP content. The adhesive shear strength of the blends was improved with LEP in content of up to 40％, and the maximum occurred at a LEP content of 20％.

关键词： acetic acid lignin phenolation epoxy resin thermal stability adhesive shear strength

作者: Pan Feng Fangeng Chen

作者单位: State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou

会议类型: 国际会议

会议名称: 16th International Symposium on Wood,Fiber and Pulping Chemistry(第十六届木材、纤维及制浆化学国际会议)

会议地点: 天津

会议语种:英文

页码: 304-307

在线出版日期: 2011-06-08（万方平台首次上网日期，不代表论文的发表时间）