The role of low-molecular-weight oxidized materials in the adhesion properties of corona-treated polypropylene film

Strobel, Mark; Lyons, Christopher S.

doi:10.1163/15685610360472411

Cited by 60 publications

(36 citation statements)

References 5 publications

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“…This is a known cause for adhesion failure in corona-treated polymers. 52 In a study performed by Friedrich et al, 39 it was reported that the overall optimum oxygen plasma treatment time to improve the adhesion of thermally evaporated aluminium thin films to polymers such as polycarbonate lay in the time interval of 0.1-2 s. The surface of many polymers such as polyethylene was found to be saturated with oxygen after this time.…”

Section: Nanoindentation Analysismentioning

confidence: 99%

Effects of oxygen plasma treatment on the surface of bisphenol A polycarbonate: a study using SIMS, principal component analysis, ellipsometry, XPS and AFM nanoindentation

Muir

Arthur

Thissen

et al. 2006

Surf. Interface Anal.

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The effects of oxygen plasma treatment and the subsequent air exposure on the surface composition and properties of bisphenol A polycarbonate (BPA-PC) were analysed by X-ray photoelectron spectroscopy (XPS), ellipsometry, static time-of-flight secondary ion mass spectrometry (ToF-SIMS) with principal component analysis (PCA) and nanoindentation using an atomic force microscope (AFM). PCA showed systematic changes in the film chemistry after short treatment times (0.1 s), with the main sites of attack being the carbonate and aromatic ring structure. On the basis of this multitechnique analysis, it was unambiguously determined that extended oxygen plasma treatment times resulted in the formation of low-molecular-weight material (LMWM) within the first 50 nm on the surface, and not in a cross-linked skin as has been proposed by other researchers. The study shows that controlled surface modification of BPA-PC polymers is possible, allowing surface oxygen incorporation without degradation of the polymer structure. This result is relevant for improved adhesion of coatings applied to BPA-PC polymers.

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Section: Nanoindentation Analysismentioning

confidence: 99%

Effects of oxygen plasma treatment on the surface of bisphenol A polycarbonate: a study using SIMS, principal component analysis, ellipsometry, XPS and AFM nanoindentation

Muir

Arthur

Thissen

et al. 2006

Surf. Interface Anal.

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“…It was observed that the water contact angles on the APP-treated fibers slightly increased during the storage in air until 1 week. This is called hydrophobic recovery, due to the surface rearrangement of hydrophilic polymers via reorientation and migration [45][46][47][48][49]. The contact angles on the UV-treated fibers after 1 week aging are also presented in Fig.…”

Section: Single Fiber Wettabilitymentioning

confidence: 99%

Textile Performance of Polyester, Nylon 6 and Acetate Fabrics Treated with Atmospheric Pressure Plasma Jet

et al. 2013

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In general, synthetic textiles have many advantages of high modulus and strength, stiffness, stretch, wrinkle and abrasion resistances, relatively low cost, convenient processability, tailorable performance and easy recycling [1,2]. On the other hand, they have low wettability because of inherently hydrophobicity, which leads to less wearing comfort, low color strength, build-up of electrostatic charge, the tendency to pilling and insufficient washability [2,3]. Because of these disadvantages, surface modification to enhance hydrophilicity has been carried out by conventional chemical modifications [4][5][6][7]. The chemical modification can improve textile-specific performance by altering its chemical structure due to a chemical reaction, such as esterification, grafting, and crosslinking. Therefore, large amounts of modifying agents and solvents are required, resulting in undesired high-cost drying and pollutanttreating steps [4,7]. As alternative environmentally friendly technology, dry gas-phase oxidation of synthetic fiber surfaces after processing has been recently attempted by ultraviolet light [8][9][10][11][12][13] and plasma [7,[14][15][16][17][18][19][20] technologies.Recently, we have carried out the surface oxidation of synthetic fibers by two dry processes in the atmosphere. Some synthetic textiles were treated by 172 nm ultraviolet (UV) excimer light irradiation [21]. As a result, the water absorbency for any fabric was enhanced because of the increase in single fiber wettability. Such a tendency was remarkable for polyester, which surface oxygen concentration and roughness much increased due to UV exposure compared with other synthetic fibers. The color strength after dyeing and the detergency by laundering were also improved after UV irradiation for the polyester fabric [22]. Moreover, we have applied atmospheric pressure plasma (APP) to polyester textile finishing. The APP jet device used has attracted significant attention, because they generate plasma plumes in open space, have no limitations on the sizes of the objects to be treated and can achieve continuous in-line material processing at high speed [23][24][25][26][27]. To obtain basic information on physicochemical properties of the treated surface, the PET film with geometric simplicity was chosen [28,29]. The increases in wettability and surface free energy were remarkable for the APP treatment in comparison with the UV treatment, which was not in contradiction with the results characterized by X-ray photoelectron spectroscopy. Using polyester fabric, it was confirmed that the APP jet treatment increased oxygen concentration and roughness Abstract: Three synthetic textiles, polyester, nylon 6 and acetate fabrics, were treated by atmospheric pressure plasma (APP) jet with nitrogen gas. From the contact angle measurements using a single fiber, the wettability and the base parameter of surface free energy of the three fibers were found to increase drastically after the APP treatment. X-ray photoelectron spectroscopy and atomic force micros...

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“…Both visual inspection of the air-treated samples and AFM imaging (Figure 8) point to surface degradation and a clustering of LMWOM on the PET film, as supported by surface treatment studies using oxygen species. [41][42][43] These LMWOM reorganized over time, with O/C decreasing after a few days without reaching the initial level of the virgin PET ( Figure 6). Alternately, N 2 APDBD allowed for a less destructive modification on the PET surfaces (film or textile), with no or few oxidative species created on the surface and the presence of grafted nitrogenous groups (appearance of one N peak on the XPS spectra).…”

Section: Plla Fiber Adhesion Optimizationmentioning

confidence: 99%

“…A similar phenomenon was observed in another context where plasma treatment was involved. 44 Moreover, despite the detrimental effect of low molecular weight oxidized material (LMWOM) on adhesion, 42 the air-treated surfaces displayed a significant increase (p < 0.001), compared to the nontreated PET film. N2 treatment, therefore, produced better results, with a significant difference (p < 0.001) twice that of the nontreated surfaces and statistically higher that that observed with the air-treated surfaces (p < 0.001).…”

Section: Plla Fiber Adhesion Optimizationmentioning

confidence: 99%

Characterization of an air‐spun poly(L‐lactic acid) nanofiber mesh

et al. 2010

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It was previously showed that PLLA nanofiber mesh promoted good endothelial cell proliferation. A new technique was developed to produce nanofibers by air jet spinning inside the tubular shape of vascular prostheses and to characterize this nanofiber mesh. Polymer macromolecule stability was assessed by gel permeation chromatography. Thermal analyses were conducted with differential scanning calorimetry and dynamic mechanical analysis on PLLA nanofibers obtained with 4% and 7% solutions (w/v) in chloroform. Polyethylene terephthalate (PET) was also treated with atmospheric pressure dielectric barrier discharge under air or nitrogen atmosphere to optimize PLLA nanofiber adherence, assessed by peel tests. Air spinning induced a reduction of number-average molecular weight (M(n)) for the 7% PLLA solution but not for the 4% solution. The nanofibers were more crystalline and less sensible to viscoelastic relaxation as a function of aging in the 4% solution than in the 7% solution. Discharge treatment of the PET promoted identical surface modification on PET film and PET textile surfaces. Moreover, the best PLLA nanofibers adhesion results were obtained under nitrogen atmosphere. This study demonstrates that it is possible to coat the internal side of tubular vascular prostheses with PLLA nanofibers, and provides a better understanding of the air spinning process as well as optimizing nanofibers adhesion.

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The role of low-molecular-weight oxidized materials in the adhesion properties of corona-treated polypropylene film

Cited by 60 publications

References 5 publications

Effects of oxygen plasma treatment on the surface of bisphenol A polycarbonate: a study using SIMS, principal component analysis, ellipsometry, XPS and AFM nanoindentation

Effects of oxygen plasma treatment on the surface of bisphenol A polycarbonate: a study using SIMS, principal component analysis, ellipsometry, XPS and AFM nanoindentation

Textile Performance of Polyester, Nylon 6 and Acetate Fabrics Treated with Atmospheric Pressure Plasma Jet

Characterization of an air‐spun poly(L‐lactic acid) nanofiber mesh

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