Article
  • Effect of the Chain Length of the Hardener on the Physical Properties and the Fracture Behavior of the Cured Epoxy Resin
  • Lee JR, Kim JH, Lee KS, Lee SK
  • 경화제 사슬길이가 경화된 애폭시 수지의 물성 및 파단특성에 미치는 영향
  • 이재락, 김준형, 이광섭, 이성구
Abstract
Low viscosity epoxy resin YDl15 from Kookdo Co. was hardened by alkenyl succinci anhydride (ASA) hardeners which have been synthesized in the laboratory. They have 8, 12, 16 carbon atoms in their chains. YDl15 was also hardened by commercial tetrahydrophthalic anhydride(THPA). The effect of the chain length of this hardeners on the density, glass transition temperature(Tg) , tensile strength, deformation at break, the impact strength also influenced by the local micro-deformation and the fracture surface area.

저점도용 에폭시 수지인 국도화학 YDl15를 실험실에서 합성된 alkenyl succinic anhydride(ASA)계이고, 사슬의 탄소수가 8개, 12개. 16개인 경화제로 경화한 것과 상업적인 경화제 tetrahydrophthalic anhydride(THPA)를 경화한 것과 비교 검토하면서. 사슬길이가 경화된 에폭시 수지의 비중, 유리전이온도, 인장강도. 인장시험에 의한 파괴시 최대신률 및 충격강도에 미치는 영향과 network의 미세구조가 충격 및 인장시험하에서의 파단면 형성에 미치는 영향을 조사하였다. 경화제의 사슬길이가 길어지면 비중, 유리전이온도 및 인장강도는 비례적으로 저하되나, 최대신률 및 충격강도는 local micro-deformation 및 fracture surface의 넓이가 많은 영향을 미친다.

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1990; 14(6): 590-596

    Published online Dec 25, 1990