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Chemistry and Industry of Forest Products ›› 2016, Vol. 36 ›› Issue (5): 95-100.doi: 10.3969/j.issn.0253-2417.2016.05.014

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Preparation and Properties of Carbamic-oxazolindnone Double Cross-linking System Based on Castor Oil

MAO Wei1,2, LI Shou-hai1,2, YANG Xue-juan2, SONG Jian2, WANG Mei2, XIA Jian-ling1,2   

  1. 1. Research Institute of Forestry New Technology, CAF, Beijing 100091, China;
    2. Institute of Chemical Industry of Forestry Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
  • Received:2015-12-08 Online:2016-10-25 Published:2016-11-05

Abstract: Epoxidized castor oil (ECO) was synthesized via epoxidation of castor oil (CTO). Then the prepared ECO was cured with toluene diisocynate (TDI) at 80℃ or 150℃ to obtain two kinds of cured cross-linking materials, and their molecular structures and comprehensive properties were studied. The results showed that the tensile strength, hardness and glass transition temperature of these two cured materials were improved significantly. Thermogravimetric analysis showed that all cured materials owned good thermal stability and the heating initial decomposition temperatures of cured materials were above 280℃. And the cured material obtained at 150℃ possessed typical carbamic-oxazolidone double cross-linking molecular structure.

Key words: castor oil, epoxidized castor oil, double cross-linking, carbamic-oxazolidone, comprehensive properties

CLC Number: