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PLOS ONE  2012 

Effect of Surface Plasma Treatments on the Adhesion of Mars JSC 1 Simulant Dust to RTV 655, RTV 615, and Sylgard 184

DOI: 10.1371/journal.pone.0045719

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Abstract:

Background Dust accumulation on surfaces of critical instruments has been a major concern during lunar and Mars missions. Operation of instruments such as solar panels, chromatic calibration targets, as well as Extra Vehicular Activity (EVA) suits has been severely compromised in the past as a result of dust accumulation and adhesion. Wind storms with wind speeds of up to 70 mph have not been effective in removing significant amounts of the deposited dust. This is indeed an indication of the strength of the adhesion force(s) involved between the dust particles and the surface(s) that they have adhered to. Complications associated with dust accumulation are more severe for non-conducting surfaces and have been the focus of this work. Methodology Argon plasma treatment was investigated as a mechanism for lowering dust accumulation on non-conducting polymeric surfaces. Polymers chosen for this study include a popular variety of silicones routinely used for space and terrestrial applications namely RTV 655, RTV 615, and Sylgard 184. Surface properties including wettability, surface potential, and surface charge density were compared before and after plasma treatment and under different storage conditions. Effect of ultraviolet radiation on RTV 655 was also investigated and compared with the effect of Ar plasma treatment. Conclusion/Significance Gravimetric measurements proved Ar plasma treatment to be an effective method for eliminating dust adhesion to all three polymers after short periods of exposure. No physical damage was detected on any of the polymer surfaces after Ar plasma treatment. The surface potential of all three polymers remained zero up to three months post plasma exposure. Ultraviolet radiation however was not effective in reducing surface and caused damage and significant discoloration to RTV 655. Therefore, Ar plasma treatment can be an effective and non-destructive method for treating insulating polymeric surfaces in order to eliminate dust adhesion and accumulation.

References

[1]  Gaier JR, Perez-Davis ME (1992) Effect of particle size of Martian dust on the degradation of photovoltaic cell performance. NASA Technical Memorandum 105232.
[2]  Landis GA (1997) Mars Dust removal technology. NASA Technical Memorandum 97345: 764–767.
[3]  Sabri F, Werhner T, Hoskins J, Schuerger AC, Hobbs AM, et al. (2008) Thin film surface treatments for lowering dust adhesion on Mars Rover calibration targets. Advances in Space Research 41: 118–128.
[4]  Landis GA (1996) Dust obscuration of Mars solar arrays. Acta Astronautica 38: 885–891.
[5]  Appelbaum J, Landis GA, Sherman I (1995) Solar energy on Mars: Stationary collectors. Journal of Propulsion and Power 11: 554–561.
[6]  Landis GA, Jenkins P (2000) Measurement of the settling rate of atmospheric dust on Mars by the MAE instrument on Mars Pathfinder. Journal of Geophysical Research 105: 1855–1857.
[7]  Stubbs TJ, Vondrak RR, Farrell WM (2005) Impact of Dust on Lunar Exploration Conference Information: Workshop on Dust in Planetary Systems,. SEP 26–30: 239–243.
[8]  Workshop on Dust in Planetary Systems, 26–30 September 2005 Kauai, HI -Book Series: ESA SPECIAL Edited by A. Wilson, January 2007.
[9]  Farrell W, Desch M, Kaiser M, Houser J, Landis G, et al. (2000) Radio and Optical Detection of Martian Dust Storm Discharges. Acta Astronautica 46: 25–36.
[10]  Farrell W, Kaiser M, Desch M, Houser J, Cummer S, et al. (1999) Detecting Electrical Activity form Martian Dust Storms. Journal of Geophysical Research – Planets 104: 3795–3805.
[11]  Landis G (2000) Is there Lightning on Mars? Journal of British Interplanetary Society 53: 117–120.
[12]  Perko HA (2002) Theoretical and Experimental Investigations in Planetary Dust Adhesion. PhD Thesis, Dept. of Civil Engineering, Colorado State University.
[13]  Rohr T, van Eesbeek M (2005) Polymer Materials in the Space Environment Proceeding of the 8th Polymers for Advanced Technologies International Symposium Budapest, Hungary, 13–16 September 2005, European Space Agency-European Space Technology and Research Center, Noordwijk, The Netherlands.
[14]  Efimenko K, Wallace WE, Genzer J (2002) Surface Modification of Sylgard-184Poly(dimethyl siloxane) Networks by Ultraviolet and Ultraviolet/Ozone Treatment. Journal of Colloid and Interface Science 254: 306–315.
[15]  Rohr T, van Eesbeek M (2005) Polymer Materials in the Space Environment Proceeding of the 8th Polymers for Advanced Technologies International Symposium Budapest, Hungary, 13–16 September 2005, European Space Agency-European Space Technology and Research Center, Noordwijk, The Netherlands.
[16]  Chen D, Wu J (2010) Dislodgement and removal of dust-particles from a surface by a technique combining acoustic standing wave and airflow. J Acoust Soc Am 127: 45–50.
[17]  Farrell WM, Kaiser ML, Desch MD, Houser JG, Cummer SA, et al. (1999) Detecting electrical activity from Martian dust storms. Journal of Geophysical Research 104: 3795–3801.
[18]  Gunnlaugsson HP (2000) Analysis of the magnetic properties experiment data on mars: results from Mars Pathfinder. Planet. Space Sci 48: 1491–1504.
[19]  Hviid (1997) Magnetic properties experiment on the Mars Pathfinder lander: Preliminary results. Science 278: 1768–1770.
[20]  Morra M, Occhiello E, Garbassi F, Johnson D (1990) On the ageing of oxygen plasma-treated polydimethylsiloxane surfaces. J Colloid Interface Sci 137: 11–24.
[21]  Owen MJ, Smith PJ (1994) Plasma treatment of polydimethylsiloxane. J Adhes Sci Technol 8: 1063–1075.
[22]  Stewart MT, Urban MW (1988) ATR FT-IR characterization of the gas-plasma modified silicone-rubber surfaces. Abstr Pap Am Chem Sci 196: 71.
[23]  Gaboury S, Urban MW (1991) Spectroscopic evidence for Si–H formation during microwave plasma modification of poly (dimethylsiloxane) elastomer surfaces. Polym Commun 32: 390–392.
[24]  Hall R, Westerdahl CAL, Devine AT, Bodnar MJ (1969) Activated gas plasma surface treatment of polymers for adhesive bonding. J Appl Polym Sci 13: 2085–96.
[25]  Hollahan J, Carlson G (1970) Hydroxylation of polymethylsiloxane surface by oxidizing plasmas. J Appl Polym Sci 14: 2499–2508.
[26]  Triolo PM, Andrade JD (1983) Surface modification and evaluation of some commonly used catheter materials. 1. Surface properties. J Biomed Mater Res 17: 129–47.
[27]  Feneberg P, Krekler U (1976) Process for the production of hydrophilic surfaces on silicon elastomer articles. US Patent No. 3959105.
[28]  Fakes DW, Davies MC, Brown A, Newton JM (1988) The surface analysis of a plasma modified contact-lens surface by SSIMS. Surf Interface Anal 13: 233–236.
[29]  Everaert EP, Van der Mei HC, Devries J, Busscher HJ (1995) Hydrophobic recovery of repeatedly plasma-treated silicone rubber. Storage in air. J Adhes Sci Technol 9: 1263–1278.
[30]  Lai JY, Lin YY, Denq YL, Chen JK (1995) Surface modification of silicone rubber by gas plasma treatment. J Adhes Sci Technol 10: 231–242.
[31]  Urban MW, Stewart MT (1990) DMA and ATR FT-IR studies of gas plasma modified silicone elastomer surfaces. J Appl Polym Sci 39: 265–283.
[32]  Kuznetsov AY, Bagryansky VA, Petrov AK (1995) The surface relaxation of glow discharge-treated silicone polymer. J Appl Polym Sci 57: 201–207.
[33]  Lai J, Sunderland B, Xue J, Yan S, Zhao W, et al. (2006) Study on hydrophilicity of polymer surfaces improved by plasma treatment. Applied Surface Science 252: 3375–3379.
[34]  Maheshwari N, Kottantharayil A, Kumar M, Mukherji S (2010) Long term hydrophilic coating on poly (dimethylsiloxane) substrates for microfluidic applications. Applied Surface Science 257: 451–457.
[35]  Llovera P, Molinie P (2004) New methodology for surface potential decay measurements: application to study charge injection dynamics on polypropylene films. IEEE Transactions on Dielectrics and Electrical Insulation 11: 1049–1056.
[36]  Llovera P, Molinié P, Soria A, Quijano A (2009) Measurements of electrostatic potentials and electric fields in some industrial applications: Basic principles. Journal of Electrostatics 67: 457–461.
[37]  Hillborg H, Ankner JF, Gedde UW, Smith GD, Yasuda HK, et al. (2000) Crosslinked Polydimethylsiloxane Exposed to Oxygen Plasma Studied by Neutron Reflectometry and Other Surface Specific Techniques. Polymer 41: 6851–6863.
[38]  Kim J, Chaudhury MK, Owen MJ (1999) Hydrophobicity Loss and Recovery of Silicone HV Insulation. IEEE Transactions on Dielectrics and Electrical Insulation 6: 695–702.
[39]  Noras MA (2002) Non-contact surface charge/voltage measurements Capacitive probe - principle of operation, Trek Application Note No. 3001.
[40]  Noll W (1968) Chemistry and Technology of Silicone. Academic Press, New York, Chap. 6.

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