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Comparison of Mechanical and Interfacial Properties on Chemical Structures of Acrylic and Epoxy Adhesives

아크릴 및 에폭시 접착제의 화학적 구조에 따른 유리섬유 복합재료의 기계적 및 계면 물성 변화 평가

  • Received : 2016.01.18
  • Accepted : 2016.04.29
  • Published : 2016.04.30

Abstract

An adhesive can be used to connect two different materials in structures. In comparing with other connecting methods, such as bolt, rivet, and hot melting, the adhesive does not need to use them. It leads to reduce the weight and decrease the stress concentration along the connecting line. This work studied the comparison of mechanical and interfacial properties of commonly-used two adhesives, acrylic type and bisphenol-A epoxy type. Tensile and flexural strength of neat adhesives were also compared. Lap shear test of two adhesives was deduced from the measurement of tensile and fatigue tests. After testing, the failure patterns of adhesive surfaces were observed by a microscope. Tensile strength and mechanical fatigue resistance at using bisphenol-A epoxy adhesive were better than acrylic adhesive. Also adding CNT reinforcement in epoxy adhesive can anticipate mechanical improvement.

Keywords

Interface;Acrylic;Epoxy resin;Fatigue strength;Adhesive

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Acknowledgement

Supported by : 한국에너지기술평가원