食品保鲜袋用聚乙烯变温红外光谱研究  

Temperature-dependant FTIR Investigation on Polyethylene for Food Fresh-keeping Bag

作　　者：于宏伟[1] 张惠珍[2] 顾丹丹[1] 叶莉蓉[1] 马钟义 李丹[1] 

机构地区：[1]石家庄学院化工学院,石家庄050035 [2]石家庄学院图书馆,石家庄050035

出　　处：《精细石油化工进展》2014年第5期55-58,共4页Advances in Fine Petrochemicals

基　　金：河北省科技厅科学技术研究与发展计划(10215687);石家庄市科学技术研究与发展计划课题(131500142A)

摘　　要：通过一维红外光谱、二阶导数红外光谱和去卷积红外光谱对食品保鲜袋中聚乙烯的分子结构进行了表征,采用变温红外技术进一步研究了温度对聚乙烯分子结构的影响。实验结果表明聚乙烯分子中含有乙烯侧基和端乙烯基,在20-120℃温度范围内具有良好的热稳定性。The molecular structure of polyethylene for food fresh-keeping bag was characterized by one-dimensional infrared spectra,second derivative infrared spectra,and deconvolution infrared spectra. The effects of temperature on the molecular structure of polyethylene were studied by temperature-dependant FTIR method. The experimental results showed that the polyethylene molecular contained vinyl side groups and terminal vinyl group,and had good thermostability in the range of 20-120 ℃.

关 键 词：一维红外光谱 二阶导数红外光谱 去卷积红外光谱 聚乙烯 

分 类 号：O657.33[理学—分析化学] TS206.4[理学—化学]