Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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A Study on the Preparation of a Linear Low Density Polyethylene particles by Thermally Induced Phase Separation

열유도 상분리에 의한 선형 저밀도 폴리에틸렌 입자 제조에 관한 연구

  • Received : 2011.11.10
  • Accepted : 2011.12.10
  • Published : 2011.12.30
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Abstract

We are crystallized to the linear low density polyethylene(LLDPE) particles by a thermally induced phase separation(TIPS). TIPS process based on the phase separation mechanism was performed for the LLDPE system which undergoes liquid-solid phase separation. The linear low density polyethylene particle formation occurred by the nucleation and growth mechanism in the metastable region. Although the growth rates depended on the experimental conditions such as the polymer concentration and temperature, the particles were larger when the polymer concentration was higher or temperature was higher. The particles were observed by SEM. The LLDPE particle size distribution became broader when the polymer concentration was higher.

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