AKD的制备与应用定.docxVIP

四川理工学院毕业论文AKD的制备与应用学生：杨伟学号：0803103A162专业：应用化学班级：精细化工082指导教师：韩建军四川理工学院材料与化学工程学院二O一二年六月AKD的制备与应用摘要AKD是使用较广泛，发展最为迅速的反应性较强的中/碱性施胶剂，是中性施胶剂中发展比较成熟的，具有很好的施胶效果和比较环保的新型施胶剂。本文通过用十二烷基苯磺酸钠作为乳化剂并加入一定量的助留剂阳离子聚丙烯酰胺对自制的AKD蜡粉进行乳化，研究了乳化剂配比、乳化温度、乳化时间、pH以及搅拌转速等因素对乳液性能的影响。对各种工艺条件下制备出的乳液，测定了其性能，并用它对纸样进行施胶，测得了纸样的施胶度。还通过与市售乳液对比，测其相同条件下的施胶度和纸张性能对比。确定了最佳乳化条件：十二烷基苯磺酸钠与AKD质量比为1∶30，乳化温度为70℃，乳化时间为10min，pH为5，搅拌转速为18000r/min。结果表明：施胶量在0.3%时纸张的施胶度可以达到52s，吸水性也大大降低，纸张平滑度可增加1秒，耐折度可增加10次，其施胶后纸张性能可与市售乳液相媲美。关键词：烷基烯酮二聚体；制备；碘值；乳化；施胶Preparation and Application of Emulsion AKDAbstractAKD is a widely used, most rapidly developing reactive strong alkaline sizing agent, and it is a neutral sizing agent one in the development of mature, good sizing effect and environmental protection agent. In this paper, twelve sodium alkyl benzene sulfonate as emulsifier was used and a certain amount of retention of CPAM on homemade AKD wax emulsionwas used, and the emulsifier ratio,the temperature and time of emulsification, the pH and stirring speed on the emulsion properties was studied.The performance of emulsion prepared by various technological conditions was determined. After it was used to glue the pattern, the degree of sizing pattern was obtained. Through the comparison with commercial emulsion, the degree of sizing and paper performance was measured under the same conditions. The best emulsification conditions were determined: The mass ratio of twelve sodium alkyl benzene sulfonate to AKD was1:30, emulsifying temperature was 70 ℃, emulsifying time was 10minutes,pH was 5, stirring speed was 18000r/min. The results showed that: when the sizingwas in 0.3% ,the sizing degree can reach52s, water absorption was greatly reduced, the paper smoothness can be increased by 1 second, and the foldingstrength can increase 10times, its sizing properties of paper can be comparable with commercial emulsion.Key words：alkyl ketene dimerization of two, preparation, Iodine value, Emulsion, Sizing目录1 绪论11.1引言11.2中性与酸性施胶的比较11.2.1酸性施胶11.2