磺化活性炭催化剂的制备及催化制备PVB  

PREPARATION OF POLYVINYL BUTYRAL CATALYZED BY SULFONATED ACTIVATED CARBON CATALYST

作　　者：徐洋 毛德棋 郑学根[2] 崔晓峰 秦伟 董彦杰 王钧伟 XU Yang;MAO De-qi;ZHENG Xue-gen;CUI Xiao-feng;QIN Wei;DONG Yan-jie;WANG Jun-wei(College of Chemistry and Chemical Engineering,Anqing Normal University,Anqing,Anhui 246011,China;Anqing Petrochemical Company,SINOPEC,Anqing,Anhui 246002,China)

机构地区：[1]安庆师范大学化学化工学院,安徽安庆246011 [2]中国石油化工股份有限公司安庆分公司,安徽安庆246002

出　　处：《井冈山大学学报（自然科学版）》2022年第1期26-32,共7页Journal of Jinggangshan University (Natural Science)

基　　金：国家自然科学基金项目(21203003,51404014);安徽省自然科学基金面上项目(1708085MB49);安徽省高校优秀青年人才支持计划重点项目(gxyqZD2017062);省部共建煤炭高效利用与绿色化工国家重点实验室开放课题(2020-KF-28)。

摘　　要：研究了磺化活性炭催化剂的制备及其用于催化正丁醛和聚乙烯醇(PVA)制备聚乙烯醇缩丁醛(PVB),考察了磺化活性炭催化剂制备条件和缩醛化反应条件对正丁醛和PVA反应生成PVB的影响。结果表明,磺化活性炭催化剂具有良好的催化正丁醛和PVA反应生成PVB的性能。磺酸量是影响磺化活性炭催化剂催化缩醛化反应的重要因素,催化剂上的比磺酸量越高,其催化缩醛化反应的活性越好。磺化活性炭催化剂的最优制备条件:磺化温度150℃、磺化时间12 h。磺化活性炭催化剂催化缩醛化反应最优条件为:反应温度75℃、反应时间12 h、溶剂配比(乙醇:水)为1.1:1(体积比)、催化剂量5%、正丁醛量:PVA量为70:100(质量比)。磺化活性炭催化剂催化正丁醛与PVA反应生成的PVB具有良好的热稳定性。The preparation of sulfonated activated carbon catalyst and its application for catalyzing n-butyraldehyde and polyvinyl alcohol(PVA)to synthesize polyvinyl butyral(PVB)were studied.The effects of preparation conditions of sulfonated activated carbon catalyst and acetalization reaction conditions on the synthesis of PVB from PVA and PVB were investigated.It was found that sulfonated activated carbon catalyst had good performance in catalyzing n-butyraldehyde and PVA to synthesize PVB.The amount of sulfonic acid on sulfonated activated carbon catalyst surface was an important affecting factor for its catalytic activity.The optimal preparation conditions of sulfonated activated carbon catalyst were:sulfonation temperature 150℃and sulfonation time 12 h.The optimum acetalization reaction conditions were as follows:reaction temperature 75℃,reaction time 12 h,solvent ratio(ethanol:water)1.1:1,catalyst dosage 5%and n-butyraldehyde:PVA=70:100.The TG results showed that PVB had good thermal stability.

关 键 词：磺化活性炭 正丁醛 聚乙烯醇 聚乙烯醇缩丁醛 缩醛化反应 

分 类 号：TQ324.3[化学工程—合成树脂塑料工业]