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Study on Type of Different Polyols for Physical Properties of Polyurethane Foam Under Sea Water

해수에서 폴리올 종류가 폴리우레탄 폼의 물성에 미치는 영향

  • Kim, Sang-Bum (Department of Chemical Engineering, Kyonggi University)
  • Received : 2011.05.13
  • Accepted : 2011.06.17
  • Published : 2011.06.30

Abstract

Rigid polyurethane foam (PUF) was synthesized with different contents of aliphatic polyester polyol, aromatic polyester polyol and aliphatic polyether polyol to know change of properties under sea water. UTM(universal testing machine), DSC(differential scanning calorimetry), hardness meter and FT-IR(Fourier transform spectroscopy) were used to study the PUF`s physical properties under sea water. Compressive strength and hardness of PUF decreased with increasing the content of aromatic polyester polyol under sea water as aging. According to the results of IR spectral analysis, reduction of urethane and urea peak was found and allophanate and biuret peak increased. Although glass transition temperature of PUF increased, mechanical properties of PUF decreased under sea water, because PUF gets brittle when crosslink density increase.

Acknowledgement

Supported by : 경기대학교

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