Physical–morphological and chemical changes leading to an increase in adhesion between plasma treated polyester fibres and a rubber matrix

Krump, H.; Hudeč, Ivan; Jasso, Martin; Dayss, E.; Luyt, A. S.

doi:10.1016/j.apsusc.2005.07.003

Cited by 69 publications

(38 citation statements)

References 16 publications

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“…[27] Therefore, plasma treatment can provide surfaces with higher crystallinity, because of the preferential etching of the softer amorphous parts of the polymer in plasma. [28,29] Measurements performed by differential scanning calorimetry (DSC) on very thin PET foils treated in plasma from both sides showed no significant changes in the crystalline phase as compared to the untreated sample. The changes in surface crystallinity are probably so small that they are below the detection limit of DSC [30] which is usually used to study the bulk crystallization.…”

Section: Resultsmentioning

confidence: 99%

Surface modification of polyester by oxygen‐ and nitrogen‐plasma treatment

Vesel

Junkar

Cvelbar

et al. 2008

Surface & Interface Analysis

259

207

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In this paper, we present a study on the surface modification of polyethyleneterephthalate (PET) polymer by plasma treatment. The samples were treated by nitrogen and oxygen plasma for different time periods between 3 and 90 s. The plasma was created by a radio frequency (RF) generator. The gas pressure was fixed at 75 Pa and the discharge power was set to 200 W. The samples were treated in the glow region, where the electrons temperature was about 4 eV, the positive ions density was about 2 × 10 15 m −3 , and the neutral atom density was about 4 × 10 21 m −3 for oxygen and 1 × 10 21 m −3 for nitrogen. The changes in surface morphology were observed by using atomic force microscopy (AFM). Surface wettability was determined by water contact angle measurements while the chemical composition of the surface was analyzed using XPS. The stability of functional groups on the polymer surface treated with plasma was monitored by XPS and wettability measurements in different time intervals. The oxygen-plasma-treated samples showed much more pronounced changes in the surface topography compared to those treated by nitrogen plasma. The contact angle of a water drop decreased from 75• for the untreated sample to 20• for oxygen and 25• for nitrogen-plasma-treated samples for 3 s. It kept decreasing with treatment time for both plasmas and reached about 10• for nitrogen plasma after 1 min of plasma treatment. For oxygen plasma, however, the contact angle kept decreasing even after a minute of plasma treatment and eventually fell below a few degrees. We found that the water contact angle increased linearly with the O/C ratio or N/C ratio in the case of oxygen or nitrogen plasma, respectively. Ageing effects of the plasma-treated surface were more pronounced in the first 3 days; however, the surface hydrophilicity was rather stable later.

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Section: Resultsmentioning

confidence: 99%

Surface modification of polyester by oxygen‐ and nitrogen‐plasma treatment

Vesel

Junkar

Cvelbar

et al. 2008

Surface & Interface Analysis

259

207

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“…In general terms, in chemical processes, polymer surface is exposed to different chemicals (acids, oxidants, monomers, etc.). In some cases no additional elements are needed and surface modification occurs by dipping the polymer into a chemical bath, which contains the appropriate chemical agent [9,10]. In other cases, additional processes are needed to activate chemicals.…”

Section: Introductionmentioning

confidence: 99%

Improving mechanical performance of thermoplastic adhesion joints by atmospheric plasma

et al. 2013

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Polyethylene (PE) is characterized by low surface energy as a consequence of its non-polar nature. This characteristic is responsible for poor adhesion properties on polyethylene substrates. It is well known that some industrial applications such as coating, painting and formation of adhesion joints require high surface energy to promote good anchorages, so that, the use of polyethylene in these applications needs a previous surface treatment. In this work atmospheric plasma has been used to promote surface activation on polyethylene substrates for improved adhesion properties. The work has been focused on analyzing the influence of some variables (treatment rate and nozzle-sample distance) on mechanical performance of PE-PE adhesion joints subjected to shear and T-peel tests.

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“…Photoelectron peaks for C and O are shown in uncoated samples. Presence of peaks, binding energy of C1 s (285.0 eV) and O1 s (531.0 eV), have been related to organic surface of polyester [15]. Ti photoelectron peaks were observed in XPS survey spectra of coated samples, whereas there was no Ti photoelectron peak in uncoated samples.…”

Section: Xps Analysesmentioning

confidence: 99%

Preparation and Photocatalytic Activity of -Deposited Fabrics

Yang

Huang

et al. 2012

International Journal of Photoenergy

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Nanoscale titanium dioxide (TiO 2 ) photocatalytic films were deposited on the surface of polyester nonwovens by using direct current reactive magnetron sputtering. The effects of coating thickness on the surface structures and properties of TiO 2 -coated fabrics were investigated by X-ray photoelectron spectroscopy (XPS), atomic force microscope (AFM), and scanning electron microscope (SEM). The photocatalytic activity of the functional nonwoven fabrics was evaluated by the degradation of methylene blue. The test results proved that the grain sizes of the sputtered clusters increased and the coating layer became more compact with the increase of film thickness, but the composition of the sputtered films did not have any significant change. At the same time, the photocatalytic activity of TiO 2 -coated fabrics mostly depended on the film thickness which could lead to the optimum thickness for a particular application.

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Physical–morphological and chemical changes leading to an increase in adhesion between plasma treated polyester fibres and a rubber matrix

Cited by 69 publications

References 16 publications

Surface modification of polyester by oxygen‐ and nitrogen‐plasma treatment

Surface modification of polyester by oxygen‐ and nitrogen‐plasma treatment

Improving mechanical performance of thermoplastic adhesion joints by atmospheric plasma

Preparation and Photocatalytic Activity of -Deposited Fabrics

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