Elastomers and Composites

  • 제48권4호
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  • Pages.276-281
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  • 2013
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  • 2092-9676(pISSN)
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  • 2288-7725(eISSN)
한국고무학회 (The Rubber Society of Korea)
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Acrylic Polyol 함량을 달리한 폴리우레탄 제품의 형태학적 열적 및 동적·기계적 성질

Morphological, Thermal and Dynamic Mechanical Properties of Polyurethane Product with Various Contents of Acrylic Polyol

  • 김태성 (태광산업(주) 중앙연구소) ;
  • 박찬영 (부경대학교 고분자공학과)
  • 투고 : 2013.10.11
  • 심사 : 2013.10.31
  • 발행 : 2013.12.31
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초록

acrylic polyol로 개질한 polyester형 polyurethane foam을 quasi prepolymer법으로 제조하였다. 열적 및 동적 기계적 성질은 thermal gravimetric analysis 및 dynamic mechanical analysis에 의하여 분석하였다. 또한 유리전이온도는 differential scanning calorimeter로 측정하였다. Acrylic polyol 함량이 증가함에 따라 TGA에 의해 측정한 열적 안정성은 약간 감소하였다. 그리고 acrylic polyol 함량이 증가함에 따라 저장 탄성률은 증가한 반면에 tan delta 값은 감소하였다.

Polyester type polyurethane foam modified with acrylic polyol was prepared by quasi prepolymer method. Thermal and dynamic mechanical properties of polyurethane foam were analysed by thermal gravimetric analysis(TGA) and dynamic mechanical analysis(DMA). Also, glass transition temperature was measured by differential scanning calorimeter(DSC). As acrylic polyol contents were increased, thermal stability measured by TGA was slightly decreased. Storage modulus was increased and tan delta was decreased with increasing of acrylic polyol contents.

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