碳纳米管改性丙烯酸树脂涂饰材料的性能研究  

Properties of Acrylic Acid Resin Coating Materials Modified by Carbon Nanotubes

作　　者：孙友昌[1] 马建中[1] 鲍艳[1] 刘海腾[1] 于玉龙[1] 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021

出　　处：《中国皮革》2011年第17期18-21,共4页China Leather

基　　金：国家自然科学基金项目(编号:51073091);陕西科技大学科研创新团队建设项目(编号:TD09-03)

摘　　要：采用混酸对碳纳米管(CNTs)进行改性和纯化,并以此为原料,分别采用物理共混与原位乳液聚合法制备碳纳米管改性丙烯酸树脂皮革涂饰剂,将制备的丙烯酸树脂乳液分别成膜,并对所成薄膜的抗张强度、断裂伸长率、耐水性等进行测定。结果表明:碳纳米管对丙烯酸树脂薄膜有明显的增强增韧效果,随着碳纳米管用量的增加,薄膜的抗张强度、断裂伸长率增加,但耐水性略有下降。采用物理共混法与原位乳液聚合法改性丙烯酸树脂乳液,当CNTs的用量分别为0.04%和0.03%时,改性丙烯酸树脂薄膜的综合性能最好。对改性后的乳液进行超声处理,可使涂膜的抗张强度、断裂伸长率下降,但耐水性略有提高。Firstly, carbon nanotubes were modified and purified by the mix acids, then surface properties of carbon nanotubes were analyzed with the help of the infrared detector. Vinyl leather finishing agent was modified by carbon nanotubes using physical blending and in - situ emulsion polymerization. Tensile strength, elongation at break and water resistance of acrylic resin mem- brane nano- composite coating agent were determined. The results show that carbon nanotubes has the obvious enhancement toughening effect to acrylic resin membrane. Acrylic resin modified by carbon nanotubes has better tensile strength and elongation at break with an increase in the amount of carbon nanotubes, but has worse water resistance. Acrylic resin membrane modified by carbon nanotubes using physical blending and in - situ emulsion polymerization, the comprehensive performance is the best when the dosage of CNTs respectively is 0.04% and 0. 03%. Ultrasonic treatment will decrease the tensile strength and elongation at break, but the water resistance of the film will be increased slightly.

关 键 词：碳纳米管 改性丙烯酸树脂 涂饰剂 

分 类 号：TQ630.4[化学工程—精细化工]