延展型阴离子表面活性剂对聚四氟乙烯表面润湿性的影响

doi:10.3969/j.issn.2097-2806.2025.08.001

Abstract

Abstract:

In order to explore the mechanism of improving the surface wettability of low-energy polytetrafluoroethylene （PTFE） by new extended surfactants, five kinds of extended anionic surfactants with different numbers of oxypropylene （PO） and oxyethylene （EO）, octadecyl-（PO） _m-（EO）_n-sodium carboxylate （C₁₈PO_mEO_nC, m=5, 10, 15, n=5, 10, 15）, were studied. The surface tension and contact angle of C₁₈PO_mEO_nC solution with different concentrations were measured, and the adhesion tension, PTFE-water interfacial tension, and adhesion work were calculated. It was found that the extended surfactant molecules adsorb on the surface of the solution and the PTFE-liquid interface simultaneously when the concentration is lower than the critical micelle concentration （cmc）, and there was a linear relationship between surface tension and adhesion tension. The adsorption amount of C₁₈PO_mEO_nC at the PTFE-water interface was significantly lower than that on the surface of the solution. As the concentration increases above cmc, semi-micelle aggregates on the surface of PTFE are formed by C₁₈PO_mEO_nC molecules through hydrophobic interaction, and the hydrophilic group faces the solution to modify the surface of PTFE with high efficiency.

Key words: wettability, contact angle, extended surfactant, polypropylene oxide, polyethylene oxide

CLC Number:

TQ423

Qi Sun, Zhengrong Zhao, Zhicheng Xu, Lei Zhang, Lu Zhang. Effects of extended anionic surfactants on the wettability of polytetrafluoroethylene interface[J].China Surfactant Detergent & Cosmetics, 2025, 55(8): 949-960.

Figures/Tables 10

Fig. 1

Tab. 1

Fig. 2

Fig. 3

Tab.2

Fig. 4

Tab. 3

Fig. 5

Fig. 6

Fig. 7

References 56

[1]	Gharabaghi M, Aghazadeh S. A review of the role of wetting and spreading phenomena on the flotation practice[J]. Current Opinion in Colloid & Interface Science, 2014, 19 (4) : 266-282.
[2]	Chwastiak S. Calculation of contact angles from surfactant adsorption isotherms[J]. Journal of Colloid and Interface Science, 2009, 339 (1) : 196-201. doi: 10.1016/j.jcis.2009.06.063 pmid: 19695576
[3]	Luo S, Chen Z, Dong Z, et al. Uniform spread of high-speed drops on superhydrophobic surface by live-oligomeric surfactant jamming[J]. Advanced Materials, 2019, 31 (41) : 1904475-1904485.
[4]	Rao D N. Fluid-fluid and solid-fluid interfacial interactions in petroleum reservoirs[J]. Petroleum Science and Technology, 2007, 19 (1-2) : 157-188.
[5]	Michalski M C, Saramago B J V. Static and dynamic wetting behavior of triglycerides on solid surfaces[J]. Journal of Colloid and Interface Science, 2000, 227 (2) : 380-389. pmid: 10873324
[6]	Newcombet G, Ralston J. Wetting dynamics studies on silica surfaces of varied hydrophobicity[J]. Langmuir, 1992, 8: 190-196.
[7]	I A M, Morrow N R, Xie X. Application of the dynamic Wilhelmy plate to identification of slippage at a liquid-liquid-solid three-phase line of contact[J]. Journal of Petroleum Science and Engineering, 1995, 13: 179-192.
[8]	Zdziennicka A, Jańczuk B, Wójcik W. Wettability of polytetrafluoroethylene by aqueous solutions of two anionic surfactant mixtures[J]. Journal of Colloid and Interface Science, 2003, 268 (1) : 200-207. pmid: 14611789
[9]	Li R, Manica R, Lu Y, et al. Role of surfactants in spontaneous displacement of high viscosity oil droplets from solid surfaces in aqueous solutions[J]. Focus on Surfactants, 2020 (9-12) : 5-6.
[10]	Grotberg J B, Gaver D P. A synopsis of surfactant spreading research[J]. Journal of Colloid and Interface Science, 1996, 178: 377-378.
[11]	Young T. An essay on the cohesion of fluuids[J]. Philosophical Transactions of the Royal Society of London, 1805, 95: 65-87.
[12]	Souza J C, Neckel I T, Varalda J, et al. Wettability effect of graphene-based surfaces on silicon carbide and their influence on hydrophobicity of nanocrystalline cerium oxide films[J]. Journal of Colloid and Interface Science, 2015, 441: 71-77. doi: 10.1016/j.jcis.2014.10.070 pmid: 25490565
[13]	Pyter R A, Zografi G, Mukergee P. Wetting of solids by surface-active agents: the effects of unequal adsorption to vapor-liquid and solid-liquid interfaces[J]. Journal of Colloid and Interface Science, 1982, 89 (1) : 144-153.
[14]	Szymczyk K, Zdziennicka A, Jańczuk B, et al. The wettability of polytetrafluoroethylene and polymethylmethacrylate by aqueous solution of two cationic surfactants mixture[J]. Journal of Colloid and Interface Science, 2006, 293 (1) : 172-180.
[15]	Milne A J B, Amirfazli A. Autophilic effect: wetting of hydrophobic surfaces by surfactant solutions[J]. Langmuir, 2009, 26 (7) : 4668-4674.
[16]	Szymczyk K, Jańczuk B. Wettability of a polytetrafluoroethylene surface by an aqueous solution of two nonionic surfactant mixtures[J]. Langmuir, 2007, 23: 8740-8746. pmid: 17636997
[17]	Chaudhuri R G, Paria S. Dynamic contact angles on PTFE surface by aqueous surfactant solution in the absence and presence of electrolytes[J]. Journal of Colloid and Interface Science, 2009, 337 (2) : 555-562. doi: 10.1016/j.jcis.2009.05.033 pmid: 19505694
[18]	Zong H, Wang L, Zhang L, et al. Effect of hydrophobically modified polyacrylamide on interfacial dilational rheological properties of crude oil components[J]. Acta Phys. Sin., 2010, 26 (11) : 2982-2988.
[19]	Zhou Z H, Zhang Q, Wang H Z, et al. Wettability of a PTFE surface by aqueous solutions of zwitterionic surfactants: Effect of molecular structure[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2016, 489: 370-377.
[20]	Szymczyk K, Zdziennicka A, Krawczyk J, et al. Correlation between wetting, adhesion and adsorption in the polymer-aqueous solutions of ternary surfactant mixtures-air systems[J]. Applied Surface Science, 2014, 288: 488-496.
[21]	Bielawska M, Jańczuk B, Zdziennicka A. Adhesion work and wettability of polytetrafluorethylene and poly (methyl methacrylate) by aqueous solutions of cetyltrimethylammonium bromide and Triton X-100 mixture with ethanol [J]. Journal of Colloid and Interface Science, 2013, 404: 201-206.
[22]	Szymczyk K, Jańczuk B. The wettability of poly(tetrafluoroethylene) by aqueous solutions of ternary surfactant mixtures[J]. Applied Surface Science, 2010, 256 (24) : 7478-7483.
[23]	Šegota S, Heimer S, Težak Đ. New catanionic mixtures of dodecyldimethylammonium bromide/sodium dodecylbenzenesulphonate/water[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2006, 274 (1-3) : 91-99.
[24]	Eckmann D M, Cavanagh D P, Branger A B. Wetting characteristics of aqueous surfactant-laden drops[J]. Journal of Colloid and Interface Science, 2001, 242 (2) : 386-394.
[25]	Xu D, Wang H, Pan Z, et al. The kinetics and effect of a new gemini surfactant on the efficiency of micellar catalysis for the hydrolysis reaction of 4-nitrophenyl acetate[J]. Journal of Molecular Liquids, 2018, 250: 223-228.
[26]	Lv W F, Zhou Z H, Zhang Q, et al. Wetting of polymer surfaces by aqueous solutions of branched cationic Gemini surfactants[J]. Soft Matter, 2019, 15 (33) : 6725-6731.
[27]	Chauhan V, Holmberg K, Bordes R. A reverse degradation vs. temperature relationship for a carbonate-containing gemini surfactant[J]. Journal of Colloid and Interface Science, 2018, 531: 189-193. doi: S0021-9797(18)30803-8 pmid: 30031261
[28]	Kuo A T, Chang C H, Shinoda W. Molecular dynamics study of catanionic bilayers composed of ion pair amphiphile with double-tailed cationic surfactant[J]. Langmuir, 2012, 28 (21) : 8156-8164.
[29]	Aramaki K, Yamada J, Tsukijima Y, et al. Formation of bilayer membrane and niosomes by double-tailed polyglyceryl-type nonionic surfactant[J]. Langmuir, 2015, 31 (39) : 10664-10671. doi: 10.1021/acs.langmuir.5b02454 pmid: 26355349
[30]	Hu S S, Zhang L, Xu Z C, et al. Wettability alteration by novel betaines at polymer-aqueous solution interfaces[J]. Applied Surface Science, 2015, 355: 868-877.
[31]	Zhang Q, Zhou Z H, Hu S S, et al. Wettability of a polymethylmethacrylate surface in the presence of benzyl-substituted alkyl betaines[J]. Journal of Molecular Liquids, 2019, 277: 571-576. doi: 10.1016/j.molliq.2018.12.151
[32]	Liu X, Zhao Y, Li Q, et al. Surface tension, interfacial tension and emulsification of sodium dodecyl sulfate extended surfactant[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2016, 494: 201-208.
[33]	Miñana-Perez M, Graciaa A, Lachaise J, et al. Solubilization of polar oils with extended surfactants[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 1995, 100: 217-224.
[34]	Panthi K, Weerasooriya U, Mohanty K K. Enhanced recovery of a viscous oil with a novel surfactant[J]. Fuel, 2020, 282: 118882-118892.
[35]	De Lisi R, Giammona G, Lazzara G, et al. Copolymers sensitive to temperature and pH in water and in water+oil mixtures: A DSC, ITC and volumetric study[J]. Journal of Colloid and Interface Science, 2011, 354 (2) : 749-757. doi: 10.1016/j.jcis.2010.11.075 pmid: 21176912
[36]	Du Y, Zhang Q, Zhu Y, et al. Adsorption of extended surfactants at the water-PTFE interface: The effect of PO number[J]. Journal of Molecular Liquids, 2022, 348: 118465-118474.
[37]	Liu D D, Xu Z C, Zhang L, et al. Adsorption behaviors of cationic surfactants and wettability in polytetrafluoroethylene-solution-air systems[J]. Langmuir, 2012, 28 (49) : 16845-16854.
[38]	Harkot J, Jańczuk B. The role of adsorption of dodecylethyldimethylammonium bromide and benzyldimethyldodecylammonium bromide surfactants in wetting of polytetrafluoroethylene and poly(methyl methacrylate) surfaces[J]. Applied Surface Science, 2009, 255 (6) : 3623-3628.
[39]	Harkot J, Jańczuk B. Adsorption of sodium bis(2-ethylhexyl) sulfosuccinate and wettability in polytetrafluoroethylene-solution-air system[J]. Applied Surface Science, 2007, 253 (17) : 7166-7171.
[40]	Lin L H, Lai Y C, Chen K M, et al. Oxyethylene chain length affects the physicochemical properties of sugar-based anionic surfactants with phosphates groups[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2015, 485: 118-124.
[41]	Szymczyk K, Jańczuk B. The wettability of polytetrafluoroethylene by aqueous solution of cetyltrimethylammonium bromide and Triton X-100 mixtures[J]. Journal of Colloid and Interface Science, 2006, 303 (1) : 319-325. pmid: 16919663
[42]	Jiang Q, Du Y, Zhang L, et al. Wettability of a polymethylmethacrylate surface by extended anionic surfactants: effect of branched chains[J]. Molecules, 2021, 26 (4) : 863-878.
[43]	Du Y, Zhou Z H, Gao M, et al. Adsorption and wettability of extended anionic surfactants with different PO numbers on a polymethylmethacrylate surface[J]. Soft Matter, 2021, 17 (26) : 6426-6434.
[44]	Liu K X, Yin H J, Zhang L, et al. Effect of EO group on the interfacial dilational rheology of fatty acid methyl ester solutions[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2018, 553: 11-19.
[45]	Chen J, Hu X Y, Fang Y, et al. What dominates the interfacial properties of extended surfactants: Amphipathicity or surfactant shape?[J]. Journal of Colloid and Interface Science, 2019, 547: 190-198. doi: S0021-9797(19)30416-3 pmid: 30954763
[46]	Busscher H J, Vanpelt A W J. Effect of spreading pressure on surface free energy determinations by means of contact angle measurements[J]. Journal of Colloid and Interface Science, 1983, 95 (1) : 23-27.
[47]	Rauniyar B S, Bhattarai A. Study of conductivity, contact angle and surface free energy of anionic (SDS, AOT) and cationic (CTAB) surfactants in water and isopropanol mixture[J]. Journal of Molecular Liquids, 2021, 323: 114604-114615.
[48]	Bargeman D, Voorst F V. Effect of surfactants on contact angles at nonpolar solids[J]. Journal of Colloid and Interface Science, 1973, 42 (3) : 467-472.
[49]	Hazlett R D. Fractal applications: wettability and contact angle[J]. Journal of Colloid and Interface Science, 1990, 137 (2) : 527-533.
[50]	Good R J. Surface free energy of solids and liquids: Thermodynamics, molecular forces, and structure[J]. Journal of Colloid and Interface Science, 1977, 59: 398-419.
[51]	Szymczyk K, González-Martín M L, Bruque J M, et al. Effect of two hydrocarbon and one fluorocarbon surfactant mixtures on the surface tension and wettability of polymers[J]. Journal of Colloid and Interface Science, 2014, 417: 180-187. doi: 10.1016/j.jcis.2013.11.033 pmid: 24407675
[52]	Szymczyk K. Wettability of polymeric solids by ternary mixtures composed of hydrocarbon and fluorocarbon nonionic surfactants[J]. Journal of Colloid and Interface Science, 2011, 363 (1) : 223-231. doi: 10.1016/j.jcis.2011.07.029 pmid: 21821260
[53]	Zdziennicka A, Jańczuk B. The relationship between the adhesion work, the wettability and composition of the surface layer in the systems polymer/aqueous solution of anionic surfactants and alcohol mixtures[J]. Applied Surface Science, 2010, 257 (3) : 1034-1042.
[54]	Jan´czuk B, Białopiotrowicz T, Zdziennicka A. Some remarks on the components of the liquid surface free energy[J]. Journal of Colloid and Interface Science, 1999, 211: 96-103. pmid: 9929439
[55]	Zdziennicka A, Jańczuk B, Wójcik W. The wettability of polytetrafluoroethylene by aqueous solutions of sodium dodecyl sulfate and propanol mixtures[J]. Journal of Colloid and Interface Science, 2005, 281 (2) : 465-472. pmid: 15571704
[56]	Zdziennicka A. The wettability of polytetrafluoroethylene by aqueous solution of cetylpyridinium bromide and propanol mixtures[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2008, 330(2-3): 127-133.

Surfactants	Molecular formulas	cmc/（10^-5 mol/L）	Γ_cmc/（mN/m）	A_min1/nm²
C₁₈P₅E₁₅C	C₁₈H₃₇O（PO） ₅（EO） ₁₅CH₂COONa	0.445	36.25	0.94
C₁₈P₁₀E₁₅C	C₁₈H₃₇O（PO） ₁₀（EO） ₁₅CH₂COONa	0.321	37.22	1.04
C₁₈P₁₅E₅C	C₁₈H₃₇O（PO） ₁₅（EO） ₅CH₂COONa	0.343	37.97	1.09
C₁₈P₁₅E₁₀C	C₁₈H₃₇O（PO） ₁₅（EO） ₁₀CH₂COONa	0.261	38.32	1.12
C₁₈P₁₅E₁₅C	C₁₈H₃₇O（PO） ₁₅（EO） ₁₅CH₂COONa	0.136	38.87	1.16
L-C₁₂PO₄S ^[36]	L-C₁₂H₂₅（PO） ₄OSO₃Na	9.20	30.10	1.13
L-C₁₂PO₁₁S ^[36]	L-C₁₂H₂₅（PO） ₄OSO₃Na	2.40	33.40	1.38
D1807 ^[40]	C₂₄H₄₈O（EO） ₇O（PO₄Na₂） ₄	146	38.83	0.79
D1820 ^[40]	C₂₄H₄₈O（EO） ₂₀O（PO₄Na₂） ₄	103	41.47	0.92
D1830 ^[40]	C₂₄H₄₈O（EO） ₃₀O（PO₄Na₂） ₄	84	45.36	0.93
SDBS ^[17]	C₁₈H₂₉NaO₃S	120	33.75	0.69
CTAB ^[14]	C₁₆H₃₃N⁺（CH₃）3Br^-	93	32.75	0.96
TX-100 ^[41]	（CH₃） ₅C₂CH₂C₆H₄（OCH₂CH₂） ₁₀OH	15	31.50	0.68

Surfactants	Molecular formulas	Г_SL/ Г_LV	A_min2/nm²
C₁₈P₅E₁₅C	C₁₈H₃₇ O（PO） ₅（EO） ₁₅CH₂COONa	-0.32	2.94
C₁₈P₁₀E₁₅C	C₁₈H₃₇ O（PO） ₁₀（EO） ₁₅CH₂COONa	-0.34	3.05
C₁₈P₁₅E₅C	C₁₈H₃₇ O（PO） ₁₅（EO） ₅CH₂COONa	-0.28	3.89
C₁₈P₁₅E₁₀C	C₁₈H₃₇ O（PO） ₁₅（EO） ₁₀CH₂COONa	-0.32	3.50
C₁₈P₁₅E₁₅C	C₁₈H₃₇ O（PO） ₁₅（EO） ₁₅CH₂COONa	-0.36	3.22
L-C₁₂PO₄S ^[36]	L-C₁₂H₂₅ （PO） ₄OSO₃Na	-0.45	2.51
L-C₁₂PO₁₁S ^[36]	L-C₁₂H₂₅ （PO） ₄OSO₃Na	-0.40	3.45
C₁₆PC ^[37]	C₁₆OCH₂CHOHCH₂N⁺（CH₃） ₂CH₃Cl^-	-0.75	—
C₁₆（EO） ₃PC ^[37]	C₁₆O（EO）₃CH₂CHOHCH₂N⁺（CH₃） ₂CH₃Cl^-	-0.41	—

Surfactants	Г_below/（mmol/cm²）	A_below/nm²	Г_above/（mmol/cm²）	A_above/nm²
C₁₈P₅E₁₅C	0.57	2.91	1.14	1.45
C₁₈P₁₀E₁₅C	0.58	2.83	1.15	1.44
C₁₈P₁₅E₅C	0.48	3.49	1.16	1.43
C₁₈P₁₅E₁₀C	0.52	3.16	1.17	1.42
C₁₈P₁₅E₁₅C	0.60	2.78	1.17	1.42

Effects of extended anionic surfactants on the wettability of polytetrafluoroethylene interface

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 10

References 56

Related Articles 15

Metrics

Comments

Recommended 10

[1]	Hongsheng Lu, Yang Yang, Yang Wu, Xiangyang Yan, Bo Lin. Advances in desorption-enhancing mechanisms for coalbed methane desorption agents [J]. China Surfactant Detergent & Cosmetics, 2025, 55(6): 687-699.
[2]	Hui Xu. Effects of microcapsulated emulsion polymer on the interfacial tension of extended surfactants [J]. China Surfactant Detergent & Cosmetics, 2025, 55(4): 407-414.
[3]	Fei Yan, Cheng Ma, Zhicheng Xu, Qingtao Gong, Lei Zhang, Lu Zhang. Study on the foam properties of extended anionic surfactants [J]. China Surfactant Detergent & Cosmetics, 2025, 55(4): 415-421.
[4]	Siqi Yao,Yongli Yan,Suiwang Zhang,Yu Chen,Bingcheng He. Study on the non-aqueous foams stabilized by the modified nano-SiO₂particles [J]. China Surfactant Detergent & Cosmetics, 2024, 54(8): 903-910.
[5]	Tingting Gao, Yongli Yan, Suiwang Zhang, Yu Chen, Bingcheng He. Study on the drainage behavior of non-aqueous foams stabilized by nano-silica particles [J]. China Surfactant Detergent & Cosmetics, 2024, 54(7): 751-758.
[6]	Binlin Pan. Study on the performance of extended surfactants in reducing interfacial tension under seawater conditions [J]. China Surfactant Detergent & Cosmetics, 2024, 54(7): 759-766.
[7]	Xiaoding Zeng, Yancheng Zheng, Guoqing Zhang, Lingchi Zeng, Jian Mu. Performance of branched-chain extended surfactant mixed with zwitterionic or cationic surfactant [J]. China Surfactant Detergent & Cosmetics, 2024, 54(12): 1405-1413.
[8]	Zhang Peiliang, Yan Yongli, Lv Bo, Cao Yuxia, Wu Chunsheng, He Bingcheng. Experimental study on non-aqueous foams stabilized by CaCO₃ nanocrystals [J]. China Surfactant Detergent & Cosmetics, 2023, 53(6): 642-648.
[9]	Jiang Chunyan, Ao Xianquan, Cao Yang, Chen Hong, Li Songhong. Effects of Mg²⁺, Al³⁺ and Fe³⁺ on the surface properties of fluorapatite [J]. China Surfactant Detergent & Cosmetics, 2023, 53(3): 253-259.
[10]	Zheng Liyan,Fan Zhijun. Study on the mixing properties of a new surfactant for daily cosmetics [J]. China Surfactant Detergent & Cosmetics, 2022, 52(12): 1300-1306.
[11]	Zhi Lifei,Shi Xiufang,Zhang Erzhuang,Li Xiaoming,Wang Hui,Pan Ruili. Adsorption behaviors of didecyl quaternary ammonium salts with different counterions on polytetrafluoroethylene surface [J]. China Surfactant Detergent & Cosmetics, 2021, 51(8): 725-733.
[12]	GONG Cheng-yi,YU Hao,WANG Qi-qi,SUN Ji-yong,SONG Ai-xin. Progress on stimulus-responsive Pickering emulsions and their applications [J]. China Surfactant Detergent & Cosmetics, 2021, 51(6): 554-563.
[13]	LIU Jian-ping,LI Jia-xing,WU Zhi-kang,HU Chen-yu. Study on the Pickering emulsifying properties of zinc oxide nanoparticles modified by lauric acid [J]. China Surfactant Detergent & Cosmetics, 2020, 50(8): 542-546.
[14]	QIAO Jian-fen,LI Jian-bo. Preparation and properties of long-chain alkyl xylene sulfonic acid [J]. China Surfactant Detergent & Cosmetics, 2020, 50(4): 233-237.
[15]	WU Zhi-fang,LI Yun-ling. Study on the properties of salts of fatty alcohol polyoxyethylene ether succinates [J]. China Surfactant Detergent & Cosmetics, 2020, 50(10): 676-680.