多巴胺氧化自聚改性聚四氟乙烯纤维的制备及其性能  

Preparation and Properties of Polytetrafluoroethylene Fiber Modified by Dopamine Oxidative Self-polymerization

作　　者：李亭 LI Ting(Shandong Dongyue Polymer Material Co.,Ltd.,Zibo 256400,China)

机构地区：[1]山东东岳高分子材料有限公司,山东淄博256400

出　　处：《化工管理》2023年第20期131-133,共3页Chemical Engineering Management

摘　　要：为了使聚四氟乙烯纤维可更广泛地使用,使其拥有亲水性,借助多巴胺氧化自聚合特性,将聚四氟乙烯纤维进行多巴胺浸渍改性处理,运用相关测试仪器设备,了解聚四氟乙烯纤维表面形态、表面化学成分、接触角以及涂层稳定性等。结果证明:随着浸渍时间的延长,聚四氟乙烯纤维表面形成更为致密的聚多巴胺层;当达到24 h处理时间时,纤维静态水接触角会从120°变到69°;将处理时间继续延长,接触角不会再出现明显的改变;在将各种亲水基团引入改性聚四氟乙烯纤维表面后,可在很大程度上提高纤维亲水性;聚多巴胺已与纤维密切结合,具备较高牢固程度。In order to make the fiber can be more widely used,make its hydrophilic,with the help of dopamine oxidation since polymerization characteristics,the fiber dopamine dipping modif ied treatment,using related testing equipment,understand the fiber surface form,surface chemical composition,contact angle and coating stability,etc.The final result proves that in the process of increasing immersion time,the Pdopamine layer,when the static water contact angle will be changed from 120 to 69,the treatment time will be extended without any obvious contact angle change;after introducing various hydrophilic groups into the modif ied PTFE fiber surface.Polydopamine has been closely combined with the fiber and has a high firm degree.

关 键 词：聚四氟乙烯纤维 多巴胺 接触角 亲水性 

分 类 号：TQ340.1[化学工程—化纤工业]