马来酸酐改性PVB水性接枝物的制备及其性能  

Preparation and performance research on the maleic anhydride modified PVB water-soluble grafts

作　　者：方瑞娜[1] 姚新鼎[1] 崔鹏[1] 王宗舞[1] 刘国际[1,2] 

机构地区：[1]黄河水利职业技术学院环化系,河南开封475004 [2]郑州大学化工与能源学院,河南郑州450001

出　　处：《热固性树脂》2014年第1期37-41,共5页Thermosetting Resin

基　　金：河南省教育厅科学技术研究重点项目(13A530616)资助

摘　　要：利用马来酸酐对聚乙烯醇缩丁醛(PVB)进行接枝改性,制备了PVB接枝改性物(MPVB-M)。采用红外、核磁氢谱对MPVB-M进行了表征,探讨了反应的影响因素,得到了较佳工艺条件:反应温度55℃,反应时间6 h,催化剂A的用量为投料总质量的0.6%。将MPVB-M水性化制得WPVB-M,对其性能进行了研究,结果表明:WPVB-M与PVB相比,总热失重率降低4.24%,涂层硬度不变,附着力级别由1变为0,拉伸强度及断裂伸长率均有所降低。The grafted polyvinyl butyral material （ MPVB - M） was prepared by modification of polyvinyl butyral （PVB） with maleic anhydride. The structure of MPVB -M was characterized by IR spectra and 1H NMR. The re- sponse factors were studied and the optimal reactions conditions were as follows： reaction temperature 55 ℃, reac- tion time 6 h, catalyst A amount 0. 6% （based on the total feeding mass）. The waterborne WPVB - M was obtained from MPVB - M. The properties of WPVB - M was investigated and the results showed that the total heat weight loss rate was decreased by 4. 24 % compared with that of PVB. The coating hardness was unchanged and the adhe- sion level was changed from 1 to 0. The tensile strength and elongation at break were all decreased.

关 键 词：聚乙烯醇缩丁醛 马来酸酐 水性接枝物 涂料 耐热性 附着力 拉伸强度 断裂伸长率 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]