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Chemistry and Industry of Forest Products ›› 2015, Vol. 35 ›› Issue (3): 38-42.doi: 10.3969/j.issn.0253-2417.2015.03.007

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Curing Reaction and Properties of Cardanol-based Epoxy Diluent/E-51 Blends

HUO Shu-ping1, WU Guo-min1,2, CHEN Jian1, LIU Gui-feng1,2, KONG Zhen-wu1,2   

  1. 1. Institute of Chemical Industry of Forest 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;
    2. Research Institute of Forestry New Technology, CAF, Beijing 100091, China
  • Received:2014-05-05 Online:2015-06-25 Published:2015-07-03

Abstract: A cardanol-based epoxy (CDE) diluents with high diluting and toughening properties was synthesized from cardanol.The blends of the prepared CDE and bisphenol type epoxy resin (E-51) at different mass ratios were cured with anhydride.The influence of the CDE content on the thermodynamic properties and mechanical properties of the cured epoxy was systematically investigated.The results showed that CDE had high diluting and toughening properties to E-51.The glass transition temperature (Tg) of cured epoxy decreased gradually with the increase of the content of CDE.When the CDE content was 20%,the impact strength and tensile strength of cured epoxy reached the maximum values (19.17 kJ/m2 and 56.81 MPa,respectively) while the high bending strength was 108.8 MPa.

Key words: cardanol, epoxy diluent, curing reaction, dynamic mechanical thermal analysis

CLC Number: