摘要
采用中红外(MIR)光谱和变温中红外(TD-MIR)光谱,对医用胶带(包括基材及胶粘剂)的结构及热变性进行了研究。结果表明:基材结构的红外吸收模式主要包括νasCH2-基材结构、νsCH2-基材结构、νC=O-基材结构、δCH2-基材结构、δsCH3-基材结构和ρCH2-基材结构,基材的主要化学结构为乙烯-醋酸乙烯酯共聚物;胶粘剂结构的红外吸收模式包括νasCH3-胶粘剂结构、νasCH2-胶粘剂结构、νsCH3-胶粘剂结构、νC=O胶粘剂结构、δasCH3-胶粘剂结构、δsCH3-胶粘剂结构、νasC-O-C-胶粘剂结构和νsC-O-C-胶粘剂结构,胶粘剂的主要化学结构为聚甲基丙烯酸甲酯。随着测定温度的升高,基材及胶粘剂结构主要官能团对应的红外吸收频率及强度均有明显的改变。
The medical tape(including substrate and adhesive)structure and thermal denaturation were characterized by mid-infrared spectroscopy(MIR)and temperature-dependent middle infrared(TD-MIR).The results showed that the substrate structure infrared absorption modes includedνasCH2-substrate structure,νsCH2-substrate structure,νC=O-substrate structure,δCH2-substrate structure,δsCH3-substrate structureandρCH2-substrate structure.The main chemical structure of substrate structure was the poly(ethylene-co-vinylacetate).The adhesive infrared absorption modes includedνasCH3-adhesive structure,νasCH2-adhesive structure,νsCH3-adhesive structure,νC=O-adhesive structure,δasCH3-adhesive structure,δsCH3-adhesive structure,νasC-O-C-adhesive structureandνsC-O-C-adhesive structure.The main chemical structure of adhesive was the polymethylmethacrylate.With the increase of the temperature,the corresponding frequency and absorption intensity of substrate and adhesive structure major functional groups had changed obviously.
作者
于宏伟
吴雨靓
于佳琳
郭子祺
常美玲
张美环
YU Hongwei;WU Yuliang;YU Jialin;GUO Ziqi;CHANG Meiling;ZHANG Meihuan(Shijiazhuang University College of Chemical Technology,Shijiazhuang 050035,China;Hebei Provincial Anesthetic Technology Innovation Center,Shijiazhuang 050035,China)
出处
《特种橡胶制品》
CAS
2023年第5期38-42,共5页
Special Purpose Rubber Products
基金
河北省麻醉药技术创新中心资助项目(SG2019010)。
关键词
医用胶带
胶粘剂
中红外光谱
变温中红外光谱
热变性
medical tape
adhesive
mid-infrared spectroscopy
temperature-dependent mid-infrared spectroscopy
thermaldenaturation
