【摘要】 以甲基丙烯酸甲酯（MMA）、丙烯酸丁酯（BA）、丙烯酸（AA）和丙烯酰胺（AM）为共聚单体，通过水乳液聚合制备一种四元共聚物（PBMAA）乳液并自然干燥成膜，然后对芳纶Kevlar-1313（K-1313）共聚物进行改性，得到改性共聚物（K-PBMAA），并优化其添加比例以期提高涂饰膜的强度和耐磨损性能。将制备的实心纳米二氧化硅（记为S-SiO₂）和中空纳米二氧化硅（记为H-SiO₂）分别添加到K-PBMAA中制备纳米复合皮革涂饰剂（记为S-SiO₂/K-PMBAA和H-SiO₂/K-PMBAA）并用于绵羊皮的涂饰，发现K-1313和纳米SiO₂的同时引入使得复合涂膜的最大热分解温度由404℃提升至411℃，力学性能由4.03 MPa提高到8.67 MPa。更多还原

【Abstract】 A quaternary copolymer water emulsion（denoted as PBMAA）and its natural drying film are firstly obtained with methyl methacrylate（MMA）, butyl acrylate（BA）, acrylic acid（AA）and acrylamide（AM）as monomers. Then, Kevlar-1313 of aramid（denoted as K-1313）is added to modify the copolymer（denoted as K-PBMAA）and the adding ratio is optimized in order to improve the strength and wear resistance of this film.The prepared solid nano-SiO₂（denoted as S-SiO₂）and hollow nano-SiO₂（denoted as H-SiO₂）are also added into K-PBMAA respectively to prepare nanocomposite leather finishing agents（denoted as S-SiO₂/K-PBMAA and H-SiO₂/K-PBMAA）that are applied for finishing sheepskin. It is found that the thermal decomposition temperature of the coating increases from 404 ℃ to 411 ℃ and the mechanical properties increases from 4. 03 MPa to 8. 67 MPa when K-1313 and nano-SiO₂ are introduced at the same time.更多还原