【作者】 许琦；

【导师】 邢宏龙；

【作者基本信息】 安徽理工大学 ， 应用化学， 2007， 硕士

【摘要】 采用种子乳液聚合法,以丙烯酸丁酯(BA)、甲基丙烯酸甲酯(MMA)、丙烯腈(AN)为软硬单体;以甲基丙烯酸(MAA)为功能性单体;以二缩三乙二醇二甲基丙烯酸酯(DMTE)为功能性交联单体;以辛基酚聚氧乙烯醚(TX-30)和十二烷基磺酸钠(As)为复合乳化剂;用过硫酸铵(APS)作引发剂合成了具有核壳结构的聚丙烯酸酯类聚合物,并作为粘合剂考察了其涂料印花的效果。运用高分辨透射电镜(HRTEM)等对合成的聚合物的核壳结构进行了表征,运用Zetasizer Nano series粒度仪测试了乳液颗粒尺寸及分布情况。研究了聚合方法、乳化剂的种类和用量、核中软硬单体的种类和配比、壳中软硬单体的种类和配比、壳层厚度、引发剂的用量、功能性单体的用量、反应温度、反应时间等对反应及最终产物的影响。实验结果表明:1核壳型聚合物的较好合成条件是:As/Tx-30配比为1:2～1:3,复合乳化剂量为4%～5%,核中软硬单体比为MMA/BA为30/70,壳中软硬单体比为(BA+MMA):AN=4～9,核/壳比例为5:1,引发剂含量为单体的0.5%,功能单体MAA为3%,交联单体用量为8%～10%时合成出的聚合物的性能最好。2最低成膜温度用FOX方程计算为290.15K,比查得的其它论文上最低成膜温度要高。3用涂料蓝9111进行印花,聚合物用量占色浆的30%,然后70℃烘干,150℃焙烘3min,印花织物的摩擦牢度、皂煮牢度、颜色鲜艳度都较好。更多还原

【Abstract】 Copolymers with core-shell structure were synthesized by seeded emulsion polymerization method with butyl acrylate and methyl methacrylate and acrylonitrile as monomers, triethylene glycol diacrylat as crosslinker, As/TX-30 as emulsifier and ammonium persulfate (APS) as initiator.The copolymers were characterized by transmission electron microscope (HRTEM) and nano Zeta potential analyzer.The synthesized copolymers were used as pigment printing binders and analyzed the printing effects.The influences of polymerization method, the dosages of emulsifier,soft/hard monomers ratio, shell thickness,the dosages of initiator, the dosages of functional monomer,the reaction temperature,the reaction time etc to the product were investigated.The experimental results showed that better core-shell copolymers can be synthesized when the ratio of As/Tx-30 is 1:2-1:3,the dosages of compound emulsifier is 4%～5%,the ratio of soft/hard monomer MMA/BA in core is 30/70, the ratio of soft/hard monomer (BA+MMA):AN in shell is 4～9,the proportion of core and shell is 5:1,the dosages of initiatoris 0.5%, the dosages of functional monomer MMA is 3%,the dosages of DMTE is 8%～10%.The pigment printing results showed that the pigment printed fabric hard good crocking and washing fastnesses,good hand and bright colors when the core-shell copolymer emulsion were used as pigment binders.更多还原