화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO))
권호 40권 2호
발표분야 기능성 고분자
제목 Sol-gel transition temperature of low & high acyl gellan/curdlan composite with KCL and CaCl2 of different concentrations
초록 The sol–gel transition temperatures of 0.1–2.0% high & low acyl gellan (HAG, LAG) and curdlan composite solutions with added KCl and CaCl2 were determined through rheological measurements using devices like DSC & Rheo meter etc. As a result, the gelation temperature of the gel increased as the level of salt is growing. when added Cacl2 to gel, it also appears to be lower the gelation temperature than added KCl. This is considered due to the chemical properties that divalent cations has a higher affinity than monovalent cations. In case of the gel made of HAG, it became soft, ductile and non-brittle gel compared with LAG gel.
저자 이기영1, 김동운2, 이창문1, 신동일1
소속 1전남대, 2광양보건대
키워드 Gellan; curdlan; Sol-gel transition
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