摘要
利用低温等离子体对聚丙烯(PP)和聚四氟乙烯(PTFE)薄膜进行表面亲水改性。通过改变等离子体处理工艺参数、材料的化学结构以及工作气体的种类,探索其对材料表面水接触角和过氧基团浓度的影响规律,确定较优化的等离子体处理条件。结果表明:较优化处理条件为处理时间4 min、功率400 W、气体流量100 cm3/min;改性后,PP薄膜表面水接触角从初始的99°降至7°。通过比较工艺参数、材料的化学结构以及气体种类对材料表面水接触角和过氧基团浓度的影响规律发现,水接触角和过氧基团浓度之间存在一定相关性,揭示出材料表面水接触角与所生成自由基浓度之间存在相关性。
Polypropylene（PP） and polytetrafluoroethylene（PTFE） film were treated by low-temperature oxygen plasma for surface modification.The effects of plasma treatment parameters,chemical structure of materials and gas species on water contact angle（WCA） and peroxide concentration were investigated,respectively.Optimum treatment conditions were found as 4 min,400 W and gas flow 100 cm3/min,by which the WCA of PP film decreased from original 99° to 7°.By comparison of the influence of plasma parameters,chemical structure of materials and gas species on WCA and peroxide concentration,the correlation between WCA and peroxide concentration was found,which indicates a correlation between WCA and radical concentration on the film surface generated by plasma treatment.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2011年第7期1-7,共7页
Journal of Textile Research
基金
服装材料研究开发与评价北京市重点实验室开放课题资助项目(2009ZK-08)
关键词
低温等离子体
表面改性
接触角
过氧基团浓度
low-temperature plasma
surface modification
contact angle
peroxide concentration
