摘要
通过研究玉米秸秆碳基固体酸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),考察了碳基固体酸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,玉米秸秆碳基固体酸催化剂的最优制备条件为:碳化温度400℃、碳化时间5.5 h、磺化温度160℃、磺化时间12 h;缩醛化反应最优条件为:反应温度70℃、反应时间10h、催化剂用量8%(占固体总量)。傅里叶变换红外光谱表征结果证实,玉米秸秆碳基固体酸催化剂具有良好的催化正丁醛和PVA制备PVB的性能。
Preparation of carbon-based solid acid from corn straw and its application for catalyzing n-butyraldehyde and polyvinyl alcohol(PVA)to synthesize polyvinyl butyral(PVB)were studied.The effects of preparation conditions of carbon-based solid acid and acetalization reaction conditions on the synthesis of PVB were investigated.The results showed that the optimum preparation conditions of carbon-based solid acid catalyst from corn straw were as follows:carbonization temperature of 400℃,carbonization time of 5.5 h,sulfonation temperature of 160℃,sulfonation time of 12 h;the acetalization reaction optimum conditions were as follows:reaction temperature of 70℃,reaction time of 10 h,catalyst dosage of 8%.Fourier transform infrared spectroscopy(FT-IR)characterization results showed that corn straw carbon-based solid acid catalyst had a good catalytic performance for the preparation of PVB from n-butyraldehyde and PVA.
作者
毛德棋
徐凯旋
徐洋
崔晓峰
王钧伟
秦伟
董彦杰
MAO De-qi;XU Kai-xuan;XU Yang;CUI Xiao-feng;WANG Jun-wei;QIN Wei;DONG Yan-jie(College of Chemistry and Chemical Engineering Anqing,Anhui 246011,China;Anhui Key Laboratory of Functional Coordination Compounds,Anqing Normal University,Anqing,Anhui 246011,China)
出处
《井冈山大学学报（自然科学版）》
2020年第2期16-22,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)。
