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Effect of 3-Isocaynatopropyl Triethoxy Silane on PU Adhesive

3-Isocaynatopropyl Triethoxy Silane이 PU 접착제에 미치는 영향

  • Ju, Honghee (Department of Polymer Engineering, Pukyong National University) ;
  • Jang, Euisub (Department of Polymer Engineering, Pukyong National University) ;
  • Park, Chan Young (Department of Polymer Engineering, Pukyong National University) ;
  • Lee, Won-Ki (Department of Polymer Engineering, Pukyong National University) ;
  • Kim, Taekyun (Hwaseung T&C) ;
  • Chun, Jae-Hwan (Korea Institute of Footwear & Leather Technology)
  • Received : 2013.02.08
  • Accepted : 2013.03.04
  • Published : 2013.03.30

Abstract

To improve hydrolytic stability of polyurethane (PU) adhesives, a silane coupling agent (SCA) was added. 3-Isocyanatopropyl triethoxy silane (ITS) as a SCA has two functional groups in the main chain and it is used to improve an interfacial interaction between polymer and inorganic material or metal. In this study, PU adhesives with different amounts of ITS from 0 to 1 wt% were synthesized. Pot time, modulus, thermal stablilty, and adhesive force of the obtained samples were measured. The results showed that the adhesives with ITS showed better properties than that of pure one.

폴리우레탄 접착제의 내가수 분해성 향상을 위하여 실란 커플링제를 첨가하여 특성을 고찰 하였다. 실란 커플링제는 사슬 내에 2종 이상의 다른 기능성기를 가지고 있는 3-isocyanatopropyl triethoxy silane (ITS)을 사용하였는데 일반적으로 고분자와 무기, 유기 또는 금속소재와의 복합계에서 계면결합으로 접착성 개선을 가져올 수 있다. 본 연구에서는 폴리우레탄 접착제 제조에서 ITS의 양을 0, 0.3, 0.5, 0.7 및 1 wt%로 첨가하여 샘플을 제조하고 가사시간, modulus, 내열성 및 접착력을 평가하였다. ITS가 첨가된 샘플은 대부분의 물성에서 우수한 특성을 나타내었다.

Keywords

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