Surface Wettability and Surface Structure of Remote O<sub>2</sub> Plasma Treated Poly(Tetrafluoroethylene)

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Surface Wettability and Surface Structure of Remote O₂ Plasma Treated Poly(Tetrafluoroethylene)

更新时间：2025-05-01

- Surface Wettability and Surface Structure of Remote O₂ Plasma Treated Poly(Tetrafluoroethylene)
- Vol. 44, Issue 3, Pages: 120-125(2010)
- 作者机构：
  
  1. 西安交通大学能源与动力工程学院,西安,710049
  2. 西安交通大学动力工程多相流国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： O631
- Online First：10 March 2010，
  
  Published：2010
- 稿件说明：
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Surface Wettability and Surface Structure of Remote O₂ Plasma Treated Poly(Tetrafluoroethylene)[J]. 2010, 44(3): 120-125.
DOI：

Surface Wettability and Surface Structure of Remote O₂ Plasma Treated Poly(Tetrafluoroethylene)[J]. 2010, 44(3): 120-125. DOI：

摘要

研究了远程氧等离子体改性聚四氟乙烯(PTFE)的表面润湿性与表面结构的关系.用已知表面张力的液体测定接触角

采用Zisman曲线法求得试样的临界表面张力γ

利用扩展的Fowkes公式计算试样表面自由能γ

及其分量γ

(色散力)、γ

(偶极矩力)和γ

(氢键力)的变化

并与远程氧等离子体中活性物种的分布进行相关性分析.结果表明:氧等离子体处理的PTFE表面润湿性是由表面自由能中极性分量(γ

+γ

)

尤其是氢键力γ

的大小决定的

而与表面能态没有特定关系; 氧等离子体场中活性物种混合存在和较纯的高浓度自由基氛围均有利于极性分量(γ

+γ

)的增加

但表面自由能的变化则主要受电子、离子浓度的影响.X射线光电子能谱分析表明

经氧等离子体处理后

PTFE表面C—F键断裂形成的自由基与空气中的氧反应生成C—O 和C=O活性基团

氧含量增大

使表面润湿性提高.

Abstract

The surface wettability and surface structure of poly(tetrafluoroethylene)(PTFE)treated with remote O

plasma were studied. The contact angles of the samples were measured and the critical surface tensions γ

were determined on the basis of the Zisman's plots. The values of the surface free energy γ

and its dispersion force γ

dipole force γ

and hydrogen bonding force γ

were evaluated by the extended Fowkes equation. In addition

the analysis was performed on the re

lation of the distribution of reactive species in remote O

plasma and the surface free energy. The results show that the surface wettability of remote O

plasma treated PTFE is determined only by the polar force(γ

+γ

)

especially by theγ

. A mixed atmosphere constituted by all reactive species or super pure and high free radicals concentration in remote O

plasma facilitates the increase of polar force(γ

+γ

)

but the surface free energy is mainly influenced by the concentration of charged particles. X-ray photoelectron spectroscopy(XPS)indicates that the C—F bonds on the PTFE surface are broken by the O

plasma treatment

and then the C—O and C=O are yielded effectively

leading to a higher surface wettability.

关键词

Keywords

references

KANG E T, TAN K L. Surface modification and functionalization of polytetrafluoroethylene films [J]. Macromolecules, 1996, 29: 6872-6879.

WINTER R, KORZEC D, SPRANG N, et al. Broad pressure range PTFE surface modification with slot antenna microwave discharge [J]. Surface and Coatings Technology, 1995, 74/75(1/3): 618-624.

LIU C, ARNELL R D, GIBBONS A R, et al. Surface modification of PTFE by plasma treatment [J]. Surface Engineering, 2000, 16(3):215-217.

WILSON D J, WILLIAMS R L, POND R C. Plasma modification of PTFE surfaces: surfaces immediately following plasma treatment [J]. Surface and Interface Analysis, 2001, 31(5): 385-396.

GRACE J M, ZHUANG H K, GERENSER L J, et al. Time-resolved investigation of the surface chemical modification of poly(ethylenenaphthalate)by nitrogen plasma treatment [J]. Journal of Vacuum Science Technology A: Vacuum, Surfaces, and Films, 2003, 21(1): 37-46.

SIOW K S, BRITCHER L, KUMAR S, et al. Plasma Process [J]. Polymers, 2006, 3: 392-418.

ALENKA V, MIRAN M, ANTON Z. XPS characterization of PTFE after treatment with RF oxygen and nitrogen plasma [J]. Surface and Interface Analysis, 2008, 40(3/4): 661-663.

ZHANG H J, ZHANG Z Z, GUO F. Effects of air plasma treatment on tribological properties of hybrid PTFE/Kevlar fabric composite [J]. Journal of Applied Polymer Science, 2009, 114(6): 3980-3986.

刘红霞,陈杰瑢,周媛. 远程氧等离子体对大肠杆菌的灭菌效果及机理研究[J]. 西安交通大学学报, 2008, 42(1): 96-100.

LIU Hongxia, CHEN Jierong, ZHOU Yuan. Studies on germicidal efficiency and mechanisms of Escherichia coli by remote oxygen plasma [J]. Journal of Xi'an Jiaotong University, 2008, 42(1): 96-100.

LIU Hongxia, CHEN Jierong. Analysis of surface sterilization and properties of medical poly(tetrafluoroethylene)in remote argon plasma [J]. IEEE Transactions on Plasma Science, 2008, 36(1): 230-236.

GOLDMAN A, AMOUROUX J. Plasma chemistry [M]∥KUNHARDT E E, LUSSEN L H. Electrical Breakdown and Discharges in Gases, Macroscopic Processes and Discharges. New York: Plenum, 1983: 293-346.

ZISMAN W A. Relation of the equilibrium contact angle to liquid and solid constitution [J]. Advances in Chemistry Series, 1964, 43: 1-51.

FOWKES F M. Determination of intermolecular forces by surface chemical techniques [J]. ASTM Special Technical Publication, 1964, 360: 20-30.

OWENS D K, WENDT R C. Estimation of the surface free energy of polymers [J]. Journal of Applied Polymer Science, 1969, 13(18): 1741-1747.

KAELBLE D H, UY K C. Reinterpretation of organic liquid-polytetrafluoroethylene surface interactions [J]. Journal of Adhesion, 1970, 2: 50-60.

KITAZAKI Y, HATA T. Extension of Fowkes'equation and estimation of surface tension of polymer solids [J]. Nippon Setchaku Kyokaishi, 1972, 8(3): 131-142.

陈杰瑢. 低温等离子体处理聚酯(PET)表面润湿性与表面结构的研究[J]. 高等学校化学学报,1997, 18(3): 466-471.

CHEN Jierong. Studies on the surface wettability and surface structure of polyester treated withlow temperature plasma [J]. Chemical Journal of Chinese Universities, 1997, 18(3): 466-471.

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刘红霞

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Related Institution

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⁰

Surface Wettability and Surface Structure of Remote O2 Plasma Treated Poly(Tetrafluoroethylene)

DOI：

摘要

Abstract

关键词

Keywords

references

Surface Wettability and Surface Structure of Remote O₂ Plasma Treated Poly(Tetrafluoroethylene)