• Title/Summary/Keyword: MDI-trimer

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Synthesis and Hydrogen Adsorption Properties of Porous Polymer

  • Wang, Qi;Liu, Jin;Zhang, Jing;Oh, Won-Chun
    • Korean Journal of Materials Research
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    • v.26 no.6
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    • pp.332-336
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    • 2016
  • Three kinds of porous polymer were synthesized using a solvothermal of tri-4,4'-diphenylmethane diisocyanate (MDI-trimer) and different diamino monomers. The effects of the synthesis conditions and the monomer selection on the synthesis of porous polymer properties were studied. The results show that the synthesis of $NH_2$-containing monomer molecules smaller the microporous polymers was easy to implement; the specific surface areas of the polymers are related to the monomer ratio and the reaction time. The results show that the synthesized porous polymer had good hydrogen storage performance; the hydrogen storage ability improved with the addition of heterocyclic nitrogen.

PUF-P 및 Talc Powder가 충진된 PIR foam의 특성연구

  • 강영구;서동수
    • Proceedings of the Korean Institute of Industrial Safety Conference
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    • 2003.10a
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    • pp.60-65
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    • 2003
  • Semi-Rigid 폴리우레탄 foam의 한 종류인 PIR(Polyisocyanurate) foam은 당량적으로 과량의 MDI가 투입되어 생성된 Isocyanate Trimer(Isocyanurate)가 높은 Char Formation을 형성, 우수한 난연특성, 낮은 SMOKE INDEX, 높은 OXYGEN INDEX를 나타낸다. 국내엔 1988년 단열재용 폴리우레탄 foam으로는 최초로 미국의 UL Mark를 획득하여 건설, 건축등 관련업계에서 요구하는 난연특성 및 단열제로서의 제반요건에 부응하며 꾸준히 연구 개발되어 왔다.(중략)

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