Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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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
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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.

메모리 기능의 미세 셀 폴리우레탄 폼용 옥시에틸렌변성실록산 계면활성제의 합성을 위해 폴리메틸하이드로겐실록산(D = 75, D' = 15)의 수소작용기에 수소규소화반응을 이용하여 다양한 폴리알킬렌옥사이드를 치환하여 합성하였다. 폴리알킬렌 옥사이드는 에틸렌옥사이드(EO) 또는 EO와 프로필렌옥사이드(PO)의 혼합성분이 반복되는 구조에 말단기는 메틸 또는 하이드록실기를 갖는 물질들을 이용하였다. NMR과 GPC 분석을 이용하여 분자 구조와 분자량 변화를 통하여 합성반응의 진행 여부 및 생성물 수율(98%)을 파악하였다. EO 12 반복단위로 합성된 계면활성제의 첨가량을 0.6~2.0 part per hundred polyol (pphp)까지 증가시켜 메모리 기능의 우레탄 폼 발포에 적용하여 폼의 물리적 특성을 측정한 결과 셀 사이즈(최소 $0.868{\mu}m$), 공기유량(air flow, -78 KPa), 복원시간(recovery time, 8 sec) 등의 결과를 나타내었다.

Keywords

Acknowledgement

Supported by : 중소기업청, 서울특별시

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