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The Physical Properties Analysis of Epoxy Resins Incorporated with Toughening Agents
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  • Journal title : Adhesion and Interface
  • Volume 16, Issue 3,  2015, pp.101-107
  • Publisher : The Society of Adhesion and Interface, Korea
  • DOI : 10.17702/jai.2015.16.3.101
 Title & Authors
The Physical Properties Analysis of Epoxy Resins Incorporated with Toughening Agents
Kim, Daeyeon; Kim, Soonchoen; Park, Young-IL; Kim, Young Chul; Lim, Choong-Sun;
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 Abstract
Epoxy resin toughening agents such as core/shell nanoparticles, CTBN epoxy, polyester polyols, and polyurethane have been widely used in order to compensate for the brittleness and improve the impact resistance of the epoxy resin. In this work, a few tougheners mentioned above were individually added into adhesive compositions to observe the effects of physical and mechanical properties. Both flexural strength and flexural modulus were measured with UTM while impact strength was analyzed with Izod impact tester. The obtained results showed that the addition of toughening agents afforded positive performance in terms of flexibility and impact resistance of the cured epoxy resin. Furthermore, DMA experiments suggested that the trends of storage modulus data of each epoxy resin composition coincided with the trends of flexural modulus data. FE-SEM images showed that toughening agents formed circled-shape particles when it was cured in epoxy resin composition at high temperature by phase separation. The existence of particles in the cured samples explains why epoxy resin with toughener has higher impact resistance.
 Keywords
Epoxy resin;toughening agent;impact resistance;phase separation;
 Language
Korean
 Cited by
1.
실리카 파우더를 이용한 에폭시 복합소재의 열적/기계적 특성,이혜련;송지혜;김대연;임충선;서봉국;

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Thermal and Mechanical Properties of Epoxy Composites Using Silica Powder, Adhesion and Interface, 2016, 17, 1, 7  crossref(new windwow)
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