聚乙烯红外及变温红外光谱研究  

Study on infrared and temperature-dependent infrared spectra of polyethylene

作　　者：王维[1] 辛畅 封卓帆 殷俊荣 王慧慧 胡梦璇 杨若冰 于宏伟[2] Wang Wei;Xin Chang;Feng Zhuofan;Yin Junrong;Wang Huihui;Hu Mengxuan;Yang Ruobing;Yu Hongwei(College of Light Industry and Textile,Qiqihar University,Qiqihar 161006,China;School of Chemical Engineering,Shijiazhuang University,Shijiazhuang 050035,China)

机构地区：[1]齐齐哈尔大学轻工与纺织学院,黑龙江齐齐哈尔161006 [2]石家庄学院化工学院,河北石家庄050035

出　　处：《化学推进剂与高分子材料》2020年第2期64-70,共7页Chemical Propellants & Polymeric Materials

摘　　要：采用红外(IR)光谱进行了聚乙烯的结构研究,结果表明,聚乙烯主要存在νa(s CH2–聚乙烯)、νs(CH2–聚乙烯)、δ(CH2–聚乙烯)和ρ(CH2–聚乙烯)等红外吸收模式。采用变温红外(TD-IR)光谱进一步进行了聚乙烯的热稳定性研究,结果表明,在303~423 K,聚乙烯的热稳定性明显下降。The structure of polyethylene was investigated by using the infrared(IR)spectrum.The results show that the main infrared absorption modes of polyethylene areνas(CH2-polyethylene),νs(CH2-polyethylene),δ(CH2-polyethylene),ρ(CH2-polyethylene)and so on.The thermal stability of polyethylene was further investigated by using the temperature-dependent infrared(TD-IR)spectrum.The results show that the thermal stability of polyethylene obviously decreases in 303~423 K.

关 键 词：聚乙烯 红外光谱 变温红外光谱 结构 热稳定性 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]