等离子体制备亲水性聚乙烯薄膜及其性能研究  

Characterization of Hydrophilic Polyethylene Film Prepared by Plasma Treatment

作　　者：张晓龙[1] 郑丽霞[1] 王騊[1] 陈光良[1] 王晟[1] 

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,杭州310018

出　　处：《浙江理工大学学报（自然科学版）》2012年第6期795-798,822,共5页Journal of Zhejiang Sci-Tech University(Natural Sciences)

基　　金：国家自然科学基金(31070888;50802088;21103152);浙江省杰出青年科学基金(R2101054);浙江省自然科学基金资项目(Y4080392;Y406285);浙江理工大学材料科学与工程研究生教育创新示范基地(项目编号3)

摘　　要：以常压氩气(Ar)为工作气体,通过低温等离子体技术对聚乙烯薄膜表面引发接枝丙烯酸改性,从而制备出一种表面亲水性优良的聚乙烯薄膜,并用IR、AFM、接触角仪对其进行表征。结果表明:常压下单纯使用Ar低温等离子体对聚乙烯薄膜进行改性,表面接触角降低至43.21°±3°,但其时效性较差,随放置时间延长接触角会逐渐回复至70°±3°;而在使用表面丙烯酸接枝改性后,可使其接触角降低至19.21°±3°,并且接触角可稳定在30°±3°,薄膜表现出更优良的亲水性和耐久性。In this paper, an Ar-atmosphere polyethylene film is surface modified via low temperature plasma treatment using acrylic acid as grafting agent, and acquires excellent surface hydrophilicity. The as- prepared polyethylene film is characterized by FT-IR, AFM, and static contact angle. The results show that after surface modification via low-temperature plasma treatment, the contact angle of the polyethylene film decreases to 43. 21°±3°, which shows instability, and gradually recovered to 70°±3° with time. When acrylic acid is used as grafting agent after surface-modification via low-temperature plasma treatment, the contact angle of the polyethylene film decreases to 19. 21°±3°, and is maintained at 30°±3°, which indi- cates excellent stability and hydrophilicity with time.

关 键 词：等离子体 聚乙烯薄膜 改性 接枝 亲水性 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]