摘要
以双丙酮丙烯酰胺(DAAM)作为功能单体,采用种子乳液法制备了含有酮羰基的聚丙烯酸酯乳液。将此乳液与己二酸二酰肼(ADH)混合,制备了空调铝箔用涂料,并讨论了DAAM的量对涂膜耐腐蚀性能、聚合物膜力学性能、乳液粒径分布的影响,并通过原子力显微镜(AFM)和扫描电镜(SEM)观察了膜表面形态和表面粗糙度。研究结果表明,随着DAAM用量的增大,乳液粒径先减小后增大,粘度先增大后减小;耐腐蚀性增强;聚丙烯酸酯膜的拉伸强度得到改善,断裂伸长率减小。随着酮肼的加入,聚丙烯酸酯膜表面的光滑度增大,粗糙度减小。
Polyacrylate emulsion containing active keto groups was prepared by using seed polymerization,in which diacetone acrylamide as function monomers.Then the coating used as air conditioning aluminum foil was obtained by blending polyacrylate emulsion and adipic dihydrazide.Solidified films of the polyacrylate were prepared by casting emulsions on Teflon surfaces.Crosslinking degree on the effect of film on the delimit resistance was diacussed.The surface roughness and surface morphology of the films ofwaterborne polyurethanes were observed by（SEM） and atomic force microscopy（AFM）.The particle size and distribution of the resultant polymer emulsions was tested by the dynamic laser light scattering（DLLS）.The results shows that,with the increase of the dosage of diacetone acrylamide,emulsion particle size increases first,then decreases,while emulsion viscosity decreases increased first,then decreases;delimit resistance increase.It was found that the tensile strength of films of polyacrylate increased while the elongation at break decreased with increasing dosage of diacetone acrylamide,and smoothness of films of polyacrylate increase.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2013年第4期595-598,共4页
Journal of Functional Materials
基金
国家自然科学基金资助项目(50973057)
陕西省教育厅专项资助项目(2010JK433)
陕西科技大学学科人才培养计划资助项目(XSG2010014)
关键词
酮肼交联
中性盐雾试验
耐溶剂性能
拉伸性能
空调铝箔
ketone-hydrazide crosslinking
neutral saltspray test
slovent resistance
tensile properties
air conditioning aluminum foil
