聚砜树脂功能化二硫化钼纳米片及其环氧胶粘剂的制备与动力学研究  

Preparation and Study on the Kinetics of Polysulfone Functionalized Molybdenum Disulfide Nanosheet and Its Epoxy Adhesive

作　　者：张雪[1] 赵明[1] 谭蕾[1] 杨艳晶 张斌[1] ZHANG Xue;ZHAO Ming;TAN Lei;YANG Yan-jing;ZHANG Bin(Institute of Petrochemistry,Heilongjiang Academy of Sciences,Harbin 150040,China)

机构地区：[1]黑龙江省科学院石油化学研究院,黑龙江哈尔滨150040

出　　处：《化学与粘合》2022年第3期200-203,220,共5页Chemistry and Adhesion

摘　　要：首先采用超声、机械搅拌等方式制备PSF表面功能化Mo S_(2)纳米片(PSF-Mo S_(2))。再将制备的PSF-Mo S_(2)/CE悬浮液与环氧树脂(EP)均匀混合,组成PSF-Mo S_(2)/CE/EP纳米复合胶粘剂体系。采用差示扫描量热法(DSC)对该体系固化动力学进行了研究,测试了不同升温速率下(5K/min,10K/min,15K/min,20K/min)的DSC曲线。通过比较分析,确定该体系的特征固化温度为150℃/1h+235℃/3h+245℃/1h;采用Kissinger法、Crane法、Arrhenius法对DSC曲线进行计算,确定了胶粘剂固化反应的表观活化能E和指前因子lnA分别为82.18k J/mol和17.53s^(-1),体系的反应级数为0.9029,高温160℃以上对固化反应速率常数k影响显著,固化反应机理函数为:f(α)=dα/dt=4.10×10^(7)exp(-9884.06/T)(1-α)^(0.9029)。Firstly,the PSF surface functionalized MoS_(2) nanosheets (PSF-MoS_(2)) are prepared by ultrasonic and mechanical stirring.Then the prepared PSF-MoS_(2)/CE suspension is uniformly mixed with the epoxy resin (EP) to form a nanocomposite adhesive system (PSF-MoS_(2)/CE/EP).The DSC is used to study the curing kinetics of the system,and the DSC curves at different heating rates (5K/min,10K/min,15K/min and 20K/min) are tested.Through comparative analysis,it is determined that the characteristic curing temperature of the system is 150℃/1h+235℃/3h+245℃/1h;The DSC curve is calculated through Kissinger,Crane,and Arrhenius method.The apparent activation energy E and the pre-exponential factor lnA of the adhesive curing reaction is determined,which is 82.18kJ/mol and 17.53s^(-1) respectively.The reaction order of the system is 0.9029.The high temperature above 160℃has a significant effect on the curing reaction rate constant k.The curing reaction mechanism function is showed as follow:f (α)=dα/dt=4.10×10^(7)exp(-9884.06/T)(1-α)^(0.9029).

关 键 词：二硫化钼 聚砜树脂 胶粘剂 动力学 

分 类 号：TQ433.437[化学工程]