Mechanical Properties and Morphology of Epoxy/Polyamide/DDS/2E4MZ-CNS Reactive Blends

에폭시/폴리아미드/DDS/2E4MZ-CNS 반응성 블렌드의 형태학적 특징 및 기계적 물성

  • Park, So-Hyun (Department of Chemical Engineering, Pusan National University) ;
  • Phuong, Thanh Vu (Department of Chemical Engineering, Pusan National University) ;
  • Song, Hyun-Woo (Department of Chemical Engineering, Pusan National University) ;
  • Park, Kyeong-Nam (Department of Chemical Engineering, Pusan National University) ;
  • Kim, Byung-Min ;
  • Choe, Youngson (Department of Chemical Engineering, Pusan National University)
  • 박소현 (부산대학교 화학공학과) ;
  • 풩탄부 (부산대학교 화학공학과) ;
  • 송현우 (부산대학교 화학공학과) ;
  • 박경남 (부산대학교 화학공학과) ;
  • 김병민 (부산대학교 기계공학부) ;
  • 최영선 (부산대학교 화학공학과)
  • Received : 2008.02.29
  • Accepted : 2008.07.29
  • Published : 2008.10.10

Abstract

The thermal and mechanical properties and morphology of epoxy/polyamide/DDS/2E4MZ-CNS reactive blends with various amounts of polyamide were investigated. The amount of polyamide was 10, 20, and 30 phr and 2 phr of catalyst was added to the blend to cure at $180^{\circ}C$ for 30 min. By adding the catalyst, 2E4MZ-CNS, to the blend, the cure reaction occurred at a lower temperature. From the SEM images, it was found that the boundary of separated-phase was unclear and the phase was co-continuous. Without the catalyst, however, the boundary of separated-phase was clear. The control of cure temperature and morphology could be achieved by using a proper catalyst and consequently the mechanical strength increased by 20% compared to the blend without the catalyst due to the strong interaction between epoxy matrix and phase-separated polyamide at the interface.

Keywords

epoxy;polyamide;blend;adhesive;morphology

Acknowledgement

Supported by : 국제과학기술협력재단

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