Currently ethylene glycol is mainly produced from crude oil whose reserve is rapidly reducing and cellulose, commonly found in crop straws and wood waste, is considered a better alternative. 目前乙二醇主要来源于原油,但原油的储量正在急速下降,因此,能够在粮食秸秆和木材废料中广泛获取的纤维素就成了更好的选择。
The phase change behavior of polyethylene glycol ( PEG) and acetate cellulose ( CDA) blends prepared from mixed solution of acetone was investigated by means of DSC and TMA. 用静态热机械分析(TMA)、差示扫描量热(DSC)等方法研究了不同分子量聚乙二醇(PEG)与二醋酸纤维素(CDA)经溶液共混形成固态共混物的相变行为和热力学性质。
PEG ( Polyethylene glycol)-CELL ( cellulose) grafted copolymer was prepared by grafting PEG to CELL chemically. 用化学偶联法,将聚乙二醇(PEG)接枝到纤维素分子链上,制备聚乙二醇-纤维素接枝物。
The surface of Polyethylene glycol ( PEG) particles were modified by using ethyl cellulose. Influence of the PEG particles 'size on non-isothermal crystallization was investigated by using a differential scanning calorimeter ( DSC). 采用乙基纤维素对聚乙二醇(PEG)粒子进行表面修饰,通过对修饰后PEG粒子和未修饰PEG粒子进行差示扫描量热(DSC)测试,研究PEG材料尺寸对非等温结晶过程的影响。
Methoxy polyethylene glycol ( MPEG), which grafted with cellulose diacetate ( CDA), was applied as a modifier. 采用聚乙二醇单甲醚(MPEG)作为改性剂,与二醋酸纤维素(CDA)进行接枝反应。