端乙烯基聚硅氧烷交联剂用量对聚丙烯酸酯性能影响  

Influence of Dosage ofα,ω-Bis(Vinyl)Polysiloxane Polysiloxane Crosslinking Agent on Properties of Polyacrylate

作　　者：陈权胜[1] 吴明华[1] 张奇鹏 

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,浙江杭州310018 [2]浙江省工业职业技术学院,浙江绍兴312000

出　　处：《高分子材料科学与工程》2015年第11期86-90,96,共6页Polymer Materials Science & Engineering

摘　　要：为了改善涂料印花织物耐摩擦色牢度和手感,以双端乙烯基聚硅氧烷(diVi-PDMS)交联改性聚丙烯酸酯,并应用于涂料印花。研究了diVi-PDMS用量对乳液反应稳定性、胶膜性能和印花性能的影响。结果表明,随着diVi-PDMS用量的增加,单体转化率减小,凝聚率增大,反应稳定性降低;胶膜交联度先增后降,胶膜表面硅含量先增后降,耐水性先增后降,胶膜断裂延伸率增加,断裂强度降低,断裂功先增后降;印花织物耐干/湿摩擦色牢度先升后降,硬挺度降低。当diVi-PDMS用量为8%时,胶膜疏水性强,力学性能好,印花织物干/湿耐摩擦牢度均达4级,手感柔软。研究表明适量的diVi-PDMS改性,能同时提高胶膜耐水性和柔韧性,使印花织物具有良好的耐摩擦色牢度和柔软的手感。For improving the colour fastness to rubbing and softness of the pigment printed fabric, the polyacrylate was modified with α, ω-bis（vinyl） polysiloxane（diVi-PDMS） as crosslinking agent, and used for pigment printing. The influences of dosage of diVi-PDMS on stability of emulsion, properties of the modified film and the performances of pigment printing were studied. The results show that with the increasing diV-PDMS dosage, the monomer conversion of polymerization reduces, the ratio of coagulation increases, stability of the reaction is reduced, the crosslinking degree of the modified film increases at first and decreases at last, the hydrophobicity of modified film is enhanced at first and then weaken as the surface content of Si increases at first and decreases at last, the breaking elongation of modified film increases, the breaking strength reduces, the work of breaking increases at first and reduces at last. The colour fastness to rubbing of printed fabric increases at first and reduces at last, and the stiffness decreases. When the dosage of diVi-PDMS is 8 %, the hydrophobicity and mechanical properties of modified film are good, the colour fastness to dry and wet rubbing of printed fabric could reach grade 4 and the handle of printed fabric is soft. By modifying polyacrylate with suitable dosage of diVi-PDMS, the water resistance and mechanical properties of film are improved, and the printed fabric has good colour fastness to rubbing and soft handle.

关 键 词：聚丙烯酸酯 聚硅氧烷 交联剂 涂料印花 

分 类 号：TQ325.7[化学工程—合成树脂塑料工业]