The modified petroleum resin emulsion prepared from the C9petroleum resin was modified with maleic anhydride.The effects of maleic rosin and maleic anhydride addition level,the modification time and the alkali liquor ...The modified petroleum resin emulsion prepared from the C9petroleum resin was modified with maleic anhydride.The effects of maleic rosin and maleic anhydride addition level,the modification time and the alkali liquor on the properties of the emulsion were discussed.The results showed that the optimum process conditions covered:a maleic anhydride mass fraction of 1.5%,a maleic rosin mass fraction of 10%,a KOH mass fraction of 1%,a petroleum resin modification temperature of 200℃,a petroleum resin modification duration of 3 h,and a modified petroleum resin emulsion/wax emulsion mixing ratio of 1:1.The particle size of modified petroleum resin emulsion prepared under these conditions was equal to 104.166μm.展开更多
以壳聚糖季铵盐(HACC)为功能单体,丙烯酸、丙烯酸丁酯、丙烯酸异辛酯为软单体,甲基丙烯酸甲酯为硬单体,采用半连续种子预乳液法,制备了壳聚糖季铵盐基丙烯酸酯无氟防油剂(HACC-A)。将HACC-A与烷基烯酮二聚体(AKD)复配涂布构建了防水防油...以壳聚糖季铵盐(HACC)为功能单体,丙烯酸、丙烯酸丁酯、丙烯酸异辛酯为软单体,甲基丙烯酸甲酯为硬单体,采用半连续种子预乳液法,制备了壳聚糖季铵盐基丙烯酸酯无氟防油剂(HACC-A)。将HACC-A与烷基烯酮二聚体(AKD)复配涂布构建了防水防油AKD-HACC-A涂布纸。考察了反应条件对HACC-A粒径分布和贮存稳定性的影响,探讨了HACC-A涂布量、m(HACC-A)∶m(AKD)对涂布纸的60 s Cobb值、Kit防油等级的影响。采用FTIR、TGA、SEM、EDS对样品进行了表征,并测试了纸张性能。结果表明,在质量分数5%(以单体总质量计,下同)的OP-10为乳化剂、反应温度70℃、过硫酸铵(APS)用量0.8%(以单体总质量计,下同)、反应时间2 h的最优条件下,制备的HACC-A乳液粒径为200~400 nm,分布较窄,蓝光明显,可长时间(60 d)稳定储存;当HACC用量为5 g、HACC-A涂布量为6 g/m^(2)时,HACC-A涂布后的纸张60 s Cobb值为54 g/m^(2),Kit防油等级为6级,满足食品包装标准;当m(HACC-A)∶m(AKD)=1∶1、涂布量为6 g/m^(2)时,AKD-HACC-A涂布纸60 s Cobb值为30 g/m^(2),Kit防油等级为10级,对常见油脂(常温和105℃的食用油及辣椒油)、有机溶剂(乙醇和丙酮)和碱性溶液(盐酸和NaOH溶液)表现出良好的阻隔性能,防油性能优于聚乙烯淋膜纸,接近含氟防油纸的防油性能。展开更多
文摘The modified petroleum resin emulsion prepared from the C9petroleum resin was modified with maleic anhydride.The effects of maleic rosin and maleic anhydride addition level,the modification time and the alkali liquor on the properties of the emulsion were discussed.The results showed that the optimum process conditions covered:a maleic anhydride mass fraction of 1.5%,a maleic rosin mass fraction of 10%,a KOH mass fraction of 1%,a petroleum resin modification temperature of 200℃,a petroleum resin modification duration of 3 h,and a modified petroleum resin emulsion/wax emulsion mixing ratio of 1:1.The particle size of modified petroleum resin emulsion prepared under these conditions was equal to 104.166μm.
文摘以壳聚糖季铵盐(HACC)为功能单体,丙烯酸、丙烯酸丁酯、丙烯酸异辛酯为软单体,甲基丙烯酸甲酯为硬单体,采用半连续种子预乳液法,制备了壳聚糖季铵盐基丙烯酸酯无氟防油剂(HACC-A)。将HACC-A与烷基烯酮二聚体(AKD)复配涂布构建了防水防油AKD-HACC-A涂布纸。考察了反应条件对HACC-A粒径分布和贮存稳定性的影响,探讨了HACC-A涂布量、m(HACC-A)∶m(AKD)对涂布纸的60 s Cobb值、Kit防油等级的影响。采用FTIR、TGA、SEM、EDS对样品进行了表征,并测试了纸张性能。结果表明,在质量分数5%(以单体总质量计,下同)的OP-10为乳化剂、反应温度70℃、过硫酸铵(APS)用量0.8%(以单体总质量计,下同)、反应时间2 h的最优条件下,制备的HACC-A乳液粒径为200~400 nm,分布较窄,蓝光明显,可长时间(60 d)稳定储存;当HACC用量为5 g、HACC-A涂布量为6 g/m^(2)时,HACC-A涂布后的纸张60 s Cobb值为54 g/m^(2),Kit防油等级为6级,满足食品包装标准;当m(HACC-A)∶m(AKD)=1∶1、涂布量为6 g/m^(2)时,AKD-HACC-A涂布纸60 s Cobb值为30 g/m^(2),Kit防油等级为10级,对常见油脂(常温和105℃的食用油及辣椒油)、有机溶剂(乙醇和丙酮)和碱性溶液(盐酸和NaOH溶液)表现出良好的阻隔性能,防油性能优于聚乙烯淋膜纸,接近含氟防油纸的防油性能。
