Synthesis of Oxyethlyene Modified Silixoane Surfactants for Polyurethane Foam and the Characteristics of Fine Cell Formation

폴리우레탄 폼용 옥시에틸렌 변성 폴리실록산계 계면활성제의 합성 및 미세 셀 발포 특성

  • Kim, Daeheum (Department of Chemical Engineering, Kwangwoon University) ;
  • Park, Seungwoo (Department of Chemical Engineering, Kwangwoon University) ;
  • Yeo, Seungbyung (Department of Chemical Engineering, Kwangwoon University)
  • 김대흠 (광운대학교 공과대학 화학공학과) ;
  • 박승우 (광운대학교 공과대학 화학공학과) ;
  • 여승병 (광운대학교 공과대학 화학공학과)
  • Received : 2005.12.05
  • Accepted : 2006.04.13
  • Published : 2006.06.10

Abstract

For the synthesis of polyurethane memory foam stabilizer with fine cells, hydrosilylation reaction with various polyalkyleneoxides and hydrogen functional group of polymethylhydrogensiloxane (D = 75, D' = 15) was conducted. Polyalkyleneoxides (PAO) used in this research were ethylene oxides or ethylene-co-propylene oxides with terminal groups of hydroxides or methyl groups. To analyze the molecular structures and molecular weights as well as the reaction yields (98%), NMR and GPC analysis were executed. Synthesized siloxane surfactants modified with polyalkylene (EO = 12 units) were applied to producing flexible polyurethane fine memory foams from 0.6 pphp to 2.0 pphp. By controlling the amount of the surfactant, physical characteristics, the polyurethane memory foam with cell size (minimum $0.868{\mu}m$), air flows (-78 KPa), and recovery times (8 sec) were achieved.

Acknowledgement

Supported by : 중소기업청, 서울특별시

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