单体正构烷烃及其混合物的热性能比较  

Thermal properties comparison between normal alkane monomer and its mixture

作　　者：韦一良[1] 吴高明[2] 

机构地区：[1]武汉工业学院生物与化学工程系,武汉430023 [2]武钢集团焦化厂,武汉430083

出　　处：《化工新型材料》2004年第9期32-34,共3页New Chemical Materials

基　　金：湖北省自然科学基金项目 (2 0 0 2AB0 63)

摘　　要：使用差示扫描量热法从吸热温度范围及吸热量大小两个方面研究了单体正构烷烃及其混合物的热性能 ,实验结果表明 ,单体正构烷烃与正构烷烃混合物的热性能明显不同 ,正构烷烃中碳原子数的数目及其分布 ,对相变材料用石蜡的吸热温度范围及吸热量大小影响很大 ,石蜡中正构烷烃种类越少 ,正构烷烃含量越高 。The thermal properties including endothermal/exdothermal range and its capacity of normal alkane monomer and its mixture were investigated by differential scanning calorimetry. It has been proved that the thermal properties of normal alkane monomer is distinct from its mixture. The results show that the carbon number of normal alkane and its distribution have significant impacts on the thermal properties. The endothermal/exdothermal range and its capacity can be controlled by the content and variety of normal alkanes in paraffin.

关 键 词：差示扫描量热法 吸热温度 吸热量 正构烷烃 热性能 DSC曲线 

分 类 号：O621[理学—有机化学]