ACCU DYNE TEST ™ Bibliography
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2025. Ferrero, F., and R. Bongiovanni, “Improving the surface properties of cellophane by air plasma treatment,” Surface and Coatings Technology, 200, 4770-4776, (Apr 2006).
Air plasma treatment at low pressure was applied to modify the surface of a cellulose film with the aim to improve its wettability, dyeability and adhesion properties. The contact angles of different polar liquids on the treated films show an exponential decay with treatment time at a given power; the power–time reciprocity is followed. The calculated surface tension values exponentially rise to the same maximum value with a decrease of the polar fraction. ATR-FTIR analyses suggest that a cellulose dehydration takes place rather than a surface oxidation. The plasma treatment improves also the cellophane dyeability with typical dyes for cellulose fibers: the results of dye uptake follow the same trend as the surface energy. The bond strength of lap joints of cellophane with LLDPE film shows a strong improvement of the adhesion depending on the duration and the power of treatment. The whole results are consistent with ablation effects like those observed with air corona treatment rather than oxygen plasma.
2052. Ruddy, A.C., G.M. McNally, G. Nersisyan, W.G. Graham, and W.R. Murphy, “The effect of atmospheric glow discharge (APGD) treatment on polyetherimide, polybutyleneterephthalate, and polyamides,” J. Plastic Film and Sheeting, 22, 103-119, (Apr 2006).
Polyamide 6, polyamide 12, polybutyleneterephthalate, and polyetherimide films are plasma treated in an APGD unit using various applied voltages, gas flow rates, frequencies, and dwell times. The results show changes in the surface chemistry (FTIR); the degree of change in dynamic contact angle is found to be dependent on the polymer type, dwell time, and electrical characteristics of the plasma.
1176. no author cited, “Member news: Enercon Dyne-A-Mite,” AIMCAL News, 31, (May 2006).
1177. no author cited, “Member news: Empire Treater Rolls,” AIMCAL News, 31, (May 2006).
1180. Bishop, C.A., “Lifetime of flame treatment,” http://www.vacuumcoatingblog.co.uk, May 2006.
1181. Bishop, C.A., “More details re plasma treatments,” http://www.vacuumcoatingblog.co.uk, May 2006.
1186. Cho, J.S., S. Han, K.H. Kim, Y.G. Han, J.H. Lee, et al, “Surface modification of polymers by ion-assisted reactions: An overview,” in Adhesion Aspects of Thin Films, Vol. 2, Mittall, K.L., ed., 105-121, VSP, May 2006.
1339. van Oss, C.J., Interfacial Forces in Aqueous Media, 2nd Ed., CRC Press, May 2006.
2184. Wolf, R.A., and A.C. Sparavigna, “Atmospheric plasma for textiles,” R. Technologie Tessili, 46-50, (May 2006).
A recent study has illustrated a sizeable increase in the printing characteristics of nonwovens following atmospheric plasma treatments. The improvement of properties such as wettability, printability and adhesion opens up new application prospects for treated fabrics.
1340. Ebnesajjad, S., and C. Ebnesajjad, Surface Treatment of Materials for Adhesion Bonding, William Andrew Inc., Jun 2006.
1496. Bishop, C.A., “Static charge and surface energy,” http://www.vacuumcoatingblog.co.uk, Jun 2006.
1497. Bishop, C.A., “Decay of surface energy for metallized OPP films,” http://www.vacuumcoatingblog.co.uk, Jun 2006.
1498. Bishop, C.A., “Loss of surface energy,” http://www.vacuumcoatingblog.co.uk, Jun 2006.
1499. Mount, E.M. III, “Delamination problems,” http://www.vacuumcoatingblog.co.uk, Jun 2006.
1663. Schussler, J., “Ensuring that folding box seams do not burst,” VR Verpackungs-Rundschau, 56-57, (Jun 2006).
2902. Gao, L., and T.J. McCarthy, “Contact angle hysteresis explained,” Langmuir, 22, 6234-6237, (Jun 2006).
A view of contact angle hysteresis from the perspectives of the three-phase contact line and of the kinetics of contact line motion is given. Arguments are made that advancing and receding are discrete events that have different activation energies. That hysteresis can be quantified as an activation energy by the changes in interfacial area is argued. That this is an appropriate way of viewing hysteresis is demonstrated with examples.
834. Zenkiewicz, M., “New method of analysis of the surface free energy of polymeric materials calculated with Owens-Wendt and Neumann methods,” Polimery, 51, 584-587, (Jul 2006).
A new method of analysis of differences in the surface free energy (SFE) values of a solid, calculated using the methods of Owens-Wendt (OW) and Neumann and two measuring liquids, water and diiodomethane, is presented. The concept of the analysis bases on the differences in SFE, which occur objectively and regardless of both the precision and the performing conditions of the contact angle (CA) measurements. These differences result from utilizing of different mathematical relations between CA and SFE in each of the methods. The results obtained with these two methods are compared with one another over the SFE range common for polymeric materials (20-50 mJ/m 2). It is calculated that the relative difference in SFE between the results from the OW and Neumann methods can reach 19.9 % over this range.
1359. Bai, G., and Y. Liu, “Plasma-based surface modification and adhesion enhancement of polyester monofilaments,” Polymeric Materials: Science and Engineering, 51, 708-711, (Jul 2006).
1418. Zhang, J., and D.Y. Kwok, “Study of contact angles, contact line dynamics and interfacial liquid slip by a mean-field free-energy lattice Boltzmann model,” in Contact Angle, Wettability and Adhesion, Vol. 4, Mittal, K.L., ed., 3-28, VSP, Jul 2006.
1419. Callegari, G., A. Calvo, and J.P. Hulin, “Contact line motion: Hydrodynamical or molecular process?,” in Contact Angle, Wettability and Adhesion, Vol. 4, Mittal, K.L., ed., 29-41, VSP, Jul 2006.
1420. Combellas, C., A. Fuchs, F. Kanoufi, and M.E.R. Shanahan, “The detailed structure of a perturbed wetting triple line on modified PTFE,” in Contact Angle, Wettability and Adhesion, Vol. 4, Mittal, K.L., ed., 43-59, VSP, Jul 2006.
1421. Muszynski, L., D. Baptista, and D.J. Gardner, “A simple geometrical model to predict evaporative behavior of spherical sessile droplets on impermeable surfaces,” in Contact Angle, Wettability and Adhesion, Vol. 4, Mittal, K.L., ed., 61-76, VSP, Jul 2006.
1422. Della Volpe, C., M. Brugnara, D. Maniglio, S. Siboni, and T. Wangdu, “About the possibility of experimentally measuring an equilibrium contact angle and its theoretical and practical consequences,” in Contact Angle, Wettability and Adhesion, Vol. 4, Mittal, K.L., ed., 79-99, VSP, Jul 2006.
1423. Kamusewitz, H., and W. Possart, “The static contact angle hysteresis and Young's equilibrium contact angle,” in Contact Angle, Wettability and Adhesion, Vol. 4, Mittal, K.L., ed., 101-114, VSP, Jul 2006.
1424. Etzler, F.M., “Surface free energy of solids: A comparison of models,” in Contact Angle, Wettability and Adhesion, Vol. 4, Mittal, K.L., ed., 215-236, VSP, Jul 2006.
1425. Molina, R., E. Bertran, M.R. Julia, and P. Erra, “Wettability of surface-modified keratin fibers,” in Contact Angle, Wettability and Adhesion, Vol. 4, Mittal, K.L., ed., 321-333, VSP, Jul 2006.
1426. Johansson, K.S., “Ammonia plasma-simulating treatments and their impact on wettability of PET fabrics,” in Contact Angle, Wettability and Adhesion, Vol. 4, Mittal, K.L., ed., 335-350, VSP, Jul 2006.
1427. Zeng, J., and A.N. Netravali, “XeCl excimer laser treatment of ultra-high-molecular-weight polyethylene fibers,” in Contact Angle, Wettability and Adhesion, Vol. 4, Mittal, K.L., ed., 407-436, VSP, Jul 2006.
1436. Brewis, D.M., and R.H. Dahm, Adhesion to Fluoropolymers (Rapra Review Report 183), Rapra Technology, Jul 2006.
1495. Bishop, C.A., “More on static/surface energy,” http://www.vacuumcoatingblog.co.uk, Jul 2006.
1500. Bishop, C.A., “Plasma treatment of PET,” http://www.vacuumcoatingblog.co.uk, Jul 2006.
2062. Sanchis, M.R., V. Blanes, M. Blanes, D. Garcia, and R. Balart, “Surface modification of low density polyethylene (LDPE) film by low pressure O2 plasma treatment,” European Polymer J., 42, 1558-1568, (Jul 2006).
In this work, low pressure glow discharge O2 plasma has been used to increase wettability in a LDPE film in order to improve adhesion properties and make it useful for technical applications. Surface energy values have been estimated using contact angle measurements for different exposure times and different test liquids. In addition, plasma-treated samples have been subjected to an aging process to determine the durability of the plasma treatment. Characterization of the surface changes due to the plasma treatment has been carried out by means of Fourier transformed infrared spectroscopy (FTIR) to determine the presence of polar species such as carbonyl, carboxyl and hydroxyl groups. In addition to this, atomic force microscopy (AFM) analysis has been used to evaluate changes in surface morphology and roughness. Furthermore, and considering the semicrystalline nature of the LDPE film, a calorimetric study using differential scanning calorimetry (DSC) has been carried out to determine changes in crystallinity and degradation temperatures induced by the plasma treatment. The results show that low pressure O2 plasma improves wettability in LDPE films and no significant changes can be observed at longer exposure times. Nevertheless, we can observe that short exposure times to low pressure O2 plasma promote the formation of some polar species on the exposed surface and longer exposure times cause slight abrasion on LDPE films as observed by the little increase in surface roughness.
2277. Novak, I., V. Pollak, and I. Chodak, “Study of surface properties of polyolefins modified by corona discharge plasma,” Plasma Processes and Polymers, 3, 355-364, (Jul 2006).
Polyolefin surfaces, namely isotactic poly(propylene) (iPP) and low-density polyethylene (LDPE), were modified by corona discharge plasma. The chemical changes on the modified surfaces were observed, deeply affecting the surface and the adhesive properties of the studied materials. The hydrophobic recovery in the case of iPP is considerably dependent on the polymer crystallinity. The presence of the processing agents in the LDPE has a significant influence on the surface hydrophobization dynamics.
1494. Wolf, R.A., “Comparison of flame vs. plasma treatment,” http://www.vacuumcoatingblog.co.uk, Aug 2006.
1620. Bishop, C.A., “Choice of gases for vacuum plasma treatment,” http://www.webcoatingblog.co.uk, Aug 2006.
2079. Kucherenko, O.B., C. Kohlert, E.A. Sosnov, and A.A. Malygin, “Synthesis and properties of polyvinyl chloride films with modified surface,” Russian J. Applied Chemistry, 79, 1316-1320, (Aug 2006).
Atomic-force microscopy was used to study structural chemical transformations on the surface of polyvinyl chloride films subjected to modification with compounds based on acrylic acid derivatives, with preliminary activation of the polymer surface with a corona discharge.
2276. Sarra-Bournet, C., S. Turgeon, D. Mantovani, and G. Laroche, “Comparison of atmospheric-pressure plasma versus low-pressure RF plasma for surface functionalization of PTFE for biomedical applications,” Plasma Processes and Polymers, 3, 506-515, (Aug 2006).
PTFE surface modifications have been realized using low-pressure RFGD, DBD and APGD in different atmospheres. Compared to the RFGD NH3 plasma, the DBDs operating in H2/N2 lead to similar surface concentrations of amino groups and similar surface damage, but with a much higher specificity. Both APGDs in H2/N2 and NH3/N2 lead to lower concentrations of amino groups, but with similar specificity, and with lower surface damage than the RFGD treatment. A method is proposed to evaluate the efficiency of the different discharges for amine surface functionalization of PTFE, and it is concluded that the NH3/N2 APGD discharge is the one that give the best results for an effective surface treatment.
1505. Blake, T.D., “The physics of moving wetting lines - a personal view,” Presented at ISCST 13th International Coating Science and Technology Symposium, Sep 2006.
1506. Rame, E., and S. Garoff, “Spreading of liquids on solid surfaces: pure fluids,” Presented at ISCST 13th International Coating Science and Technology Symposium, Sep 2006.
1507. Alam, P., M. Toivakka, K. Backfolk, and P. Sirvio, “Dynamic spreading and absorption of impacting droplets on topographically irregular porous substrates,” Presented at ISCST 13th International Coating Science and Technology Symposium, Sep 2006.
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