低温等离子体辐射聚氨酯表面自由基浓度的研究  

Effect of plasma radiation on concentration of radicals on polyurethane surface

作　　者：梁红静[1] 邓新华[1] 孙元[1] 徐志成[1] 边栋材[1] 周晓峰[1] 张涛[1] 

机构地区：[1]天津工业大学材料科学与化学工程学院,天津300160

出　　处：《天津工业大学学报》2007年第3期55-57,共3页Journal of Tiangong University

摘　　要：利用TEMPO(2,2,6,6-四甲基哌啶-1-氧自由基)法测定了经氮气低温等离子体处理后的聚氨酯膜表面自由基的浓度,而后引发聚氨酯与丙烯酸的接枝聚合以验证TEMPO法的可行性,探讨了等离子处理条件对自由基浓度和接枝率的影响.实验结果表明,自由基浓度的测定值与实验接枝率的变化规律基本吻合.The concentration of the free radicals on the surface of polyurethane created by N2 plasma activation is confirmed by the TEMPO method, then the polyurethane treated by plasma is grafted with acrylic acid （AA） in order to testify the feasibility of the TEMPO method, and the effects of react conditions on radicals concentration and grafting rate are discussed. The results show that the TEMPO method is an effective method to determine the concentration of radicals,

关 键 词：TEMPO 低温等离子体 接枝聚合 自由基 

分 类 号：TQ316.31[化学工程—高聚物工业]