聚氨酯胶粘剂的固化反应及动力学研究  

Study on curing reaction and kinetics of polyurethane adhesive

作　　者：许星烨 周权[1] 宋宁[1] 倪礼忠[1] Xu Xingye;Zhou Quan;Song Ning;Ni Lizhong(Key Laboratory for Specially Functional Polymeric Materials and Related Technology,Ministry of Education,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]华东理工大学特种功能高分子材料及相关技术教育部重点实验室,上海200237

出　　处：《中国胶粘剂》2020年第5期1-5,共5页China Adhesives

基　　金：装备预研领域基金(61409220409)。

摘　　要：以多苯基多亚甲基多异氰酸酯(PAPI)和硅氢封端有机硅树脂(PDMS)为主要原料,制备了一种可在室温下固化的含碳硼烷耐高低温胶粘剂用树脂。通过差示扫描量热法(DSC)研究其固化反应中的各个固化特征,并且分别采用了Kissinger法和Ozawa法计算该反应的反应活化能、反应级数和频率因子等动力学参数。研究结果表明:由两种方法计算所得的表观活化能分别为32.9和36.9 kJ/mol,固化反应级数分别为0.86和0.95,接近一级反应。Using polyaryl polymethylene polyisocyanate(PAPI)and silicon hydrogen-terminated silicone resin(PDMS)as the main raw materials,a kind of high and low temperature resistant adhesive resin containing carborane,which could be cured at room temperature,was prepared.Differential scanning calorimetry(DSC)was used to study the curing characteristics of the reaction,and the reaction activation energy,reaction order,frequency factor and other kinetic parameters were calculated by Kissinger and Ozawa method,respectively.The research results showed that the apparent activation energy calculated by two methods was 32.9 and 36.9 kJ/mol,and the curing reaction order was 0.86 and 0.95,respectively,which were close to the first order reaction.

关 键 词：聚氨酯 差示扫描量热法 固化动力学 

分 类 号：TQ430.1[化学工程] TB35[一般工业技术—材料科学与工程]