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Macromolecular Research

, Volume 18, Issue 9, pp 862–867 | Cite as

Thermal stability and impact and flexural properties of epoxy resins/epoxidized castor oil/nano-CaCO3 ternary systems

  • Ju-Long Chen
  • Fan-Long Jin
  • Soo-Jin Park
Articles
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Abstract

Epoxy ternary systems were prepared from the diglycidylether of bisphenol-A (DGEBA), epoxidized castor oil (ECO), and nano-CaCO3 using a thermally latent initiator. The effects of ECO and the nano-CaCO3 contents on the thermal stability and mechanical interfacial properties of the prepared DGEBA/ECO/nano-CaCO3 ternary systems were examined by thermogravimetric analysis (TGA), Izod impact tests, and mechanical tests. The morphology of the ternary systems was examined by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The statistic heat-resistant index temperature (T s ) of the ternary systems was approximately constant up to 30 wt% ECO, and thereafter decreased with increasing ECO content. The impact strength of the ternary systems was improved by the addition of ECO and nano-CaCO3. The flexural strength of the ternary systems exhibited a maximum value at 20 wt% ECO. SEM showed that shear deformation occurred, which prevented the propagation of cracks in the DGEBA/ECO/nano-CaCO3 ternary systems.

Keywords

epoxy resins nano-CaCO3 epoxidized castor oil thermal stabilities impact strength 
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Copyright information

© The Polymer Society of Korea and Springer Netherlands 2010

Authors and Affiliations

  1. 1.School of SciencesJilin Institute of Chemical TechnologyJilin CityPeople’s Republic of China
  2. 2.School of Chemical and Materials EngineeringJilin Institute of Chemical TechnologyJilin CityPeople’s Republic of China
  3. 3.Department of ChemistryInha UniversityIncheonKorea

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