Enhanced adhesion of metal films on PET after UV-laser treatment

Heitz, J.; Arenholz, E.; Kefer, T.; Bäuerle, D.; Hibst, H.; Hagemeyer, Alfred

doi:10.1007/bf00324090

Cited by 48 publications

(31 citation statements)

References 12 publications

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“…In recent years this technique has been applied to precisely control and later the surface characteristics of a number of polymer materials. Much research has been carried out to study the effects of excimer laser radiation on the wettability characteristics of polyethylene terephthalate (PET) in both film [22], fibre [23] and sheet [24] form, as well as polyparaphenylene terephthalamide (PPTA) [25].…”

Section: Introductionmentioning

confidence: 99%

Modification of the wettability characteristics of polymethyl methacrylate (PMMA) by means of CO2, Nd:YAG, excimer and high power diode laser radiation

Lawrence

2001

Materials Science and Engineering: A

105

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The surface of the bio-material polymethyl methacrylate (PMMA) was treated with CO 2 , Nd:YAG, excimer and high power diode laser (HPDL) radiation. The laser radiation was found to effect varying degrees of change to the wettability characteristics of the material depending upon the laser used. It was observed that interaction with CO 2 , Nd:YAG and HPDL effected very little change to wettability characteristics of the PMMA. In contrast, interaction of the PMMA with excimer laser radiation resulted an increase in a marked improvement in the wettability characteristics. After excimer laser treatment the surface O 2 content was found to have increased and the material was seen to be more polar in nature. The work has shown that the wettability characteristics of the PMMA could be controlled and/or modified with laser surface treatment. However, a wavelength dependence of the change of the wetting properties could not be deduced from the findings of this work.

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Section: Introductionmentioning

confidence: 99%

Modification of the wettability characteristics of polymethyl methacrylate (PMMA) by means of CO2, Nd:YAG, excimer and high power diode laser radiation

Lawrence

2001

Materials Science and Engineering: A

105

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“…In order to improve of material surfaces can affect their wettability characteristics. Previously Heitz et al [7], Henari and Blau [8], and Olfert et al [9] have found that excimer laser treatment of metals results in improved coating adhesion attributed to the fact that the excimer laser treatment resulted in a smoother surface and as such enhanced the action of wetting. It was demonstrated that five pulses per area of CO 2 laser treatment was sufficient to produce a fully wettable mild steel surface.…”

Section: Introductionmentioning

confidence: 99%

On the correlation between Nd:YAG laser-induced wettability characteristics modification and osteoblast cell bioactivity on a titanium alloy

Lawrence

Hao

Chew

2006

Surface and Coatings Technology

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The factors responsible for modifications to the wettability characteristics of a titanium (Ti6Al4V) alloy bio-metal following Nd:YAG laser treatment and the effects thereof on the response of osteoblast cells were considered in this work. It was found that interaction of the Nd:YAG laser beam with the Ti6Al4V alloy resulted in the wettability characteristics of the bio-metal improving. Such improvements in the wettability characteristics of the Ti6Al4V alloy were found to be due to: an increase in the surface roughness; and increase in the surface oxygen content and an increase in the polar component of the surface energy. From the cell response tests it was determined that the osteoblast cell adhesion and proliferation on the Nd:YAG laser treated Ti6Al4V alloy samples was considerably greater than on the untreated samples. By isolating the effects of surface roughness it was possible to confirm or refute the existence of a correlation between wettability characteristics and osteoblast cell bioactivity for the Nd:YAG laser treated Ti6Al4V alloy. The findings indicated that the aspects of wettability characteristics: surface oxygen content and polar component of the surface energy play an important role in promoting cell proliferation, particularly when surface roughness was simultaneously increased. Thus it was possible to conclude that the wettability characteristics of the Nd:YAG laser treated Ti6Al4V alloy were correlated to osteoblast cell bioactivity.

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“…), reporting on the well documented fact that generated oxide layers often promote metal/oxide wetting. Also, Heitz et al [10] and Olfert et al [11] have found that excimer laser treatment of metals results in improved coating adhesion. The improvements in adhesion were attributed to the fact that the excimer laser treatment resulted in a smoother surface and as such enhanced the action of wetting.…”

Section: Introductionmentioning

confidence: 99%

A laser-based technique for the coating of mild steel with a vitreous enamel

Lawrence¹,

Li²

2001

Surface and Coatings Technology

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Marked changes in the wettability characteristics of EN8 mild steel were observed after high power diode laser (HPDL) surface treatment of the metal. The morphological, microstructural and wetting characteristics of the steel were determined using optical microscopy, scanning electron microscopy (SEM), X-ray photoemission spectroscopy (XPS) and wetting experiments by the sessile drop technique. Improvements in the wetting action of the mild steel after HPDL surface treatment were identified as being the result of: The HPDL induced melting of the mild steel surface which brought about a reduction of the surface roughness; The small increase in the polar component of the surface energy and the increase in the surface O 2 content of the mild steel resulting from HPDL treatment.This work has demonstrated that the use of HPDL radiation to alter the wetting characteristics of mild steel in order to facilitate improved enamelling is a real possibility.

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Enhanced adhesion of metal films on PET after UV-laser treatment

Cited by 48 publications

References 12 publications

Modification of the wettability characteristics of polymethyl methacrylate (PMMA) by means of CO2, Nd:YAG, excimer and high power diode laser radiation

Modification of the wettability characteristics of polymethyl methacrylate (PMMA) by means of CO2, Nd:YAG, excimer and high power diode laser radiation

On the correlation between Nd:YAG laser-induced wettability characteristics modification and osteoblast cell bioactivity on a titanium alloy

A laser-based technique for the coating of mild steel with a vitreous enamel

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