한국추진공학회지 (Journal of the Korean Society of Propulsion Engineers)

  • 제24권4호
  • /
  • Pages.33-40
  • /
  • 2020
  • /
  • 1226-6027(pISSN)
  • /
  • 2288-4548(eISSN)
한국추진공학회 (The Korean Society of Propulsion Engineers)
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접착 보조제 종류에 따른 고체 추진제 접착 특성 분석

Analysis of Adhesion Characteristics of Solid Propellants by Kind of Barrier Coat

  • Jang, Myungwook (Quality Assurance Team, Hanwha Coporation Daejeon Plant) ;
  • Koo, Myungjun (Quality Assurance Team, Hanwha Coporation Daejeon Plant) ;
  • Yun, Jaeho (Quality Assurance Team, Hanwha Coporation Daejeon Plant) ;
  • Lee, Dug Bum (Quality Assurance Team, Hanwha Coporation Daejeon Plant)
  • 투고 : 2019.12.03
  • 심사 : 2020.05.17
  • 발행 : 2020.08.31
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초록

접착 보조제 종류에 따른 고체 추진제, 라이너 그리고 내열재의 접착 특성에 대한 연구를 수행하였다. 추진제/라이너/내열재 간의 가소제 또는 경화제의 이동을 막기 위하여 접착 보조제를 사용하였다. 접착 보조제의 종류는 Isocyanate계를 사용하였으며, 한 분자 내에 Isocyanate의 개수, 분자량에 대하여 접착 특성을 확인하였다. 시험 결과, -NCO기가 많을수록, 접착 보조제의 분자량이 클수록 접착력이 증가하는 것으로 확인하였다. 또한 접착 보조제를 도포한 후 가사시간에 따른 접착력을 비교한 결과, 가사시간이 짧을수록 접착력이 증가하는 것으로 확인되었다.

A sturdy on the adhesion properties of solid propellants, liners, and insulation was carried out according to the types of barrier coats. A barrier coats were used to prevent migration of the plasticizer or curative between the propellant/liner/insulation, and the barrier coat was selected out of Isocyanates with different molecular weight and number of -NCO in one molecule. As a result, it was found that the more the -NCO group and the larger molecular weight, the stronger adhesion. In addition, as a result of experiments about effects of the pot life after applying the barrier coat on bond strength, the adhesion strength was shown to increase as the pot life was short.

키워드

참고문헌

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