Aluminum—Polyester Corrosion

Chtaïb, M.; Novis, Y.; Caudano, R.; Lutgen, Pierre; Feyder, G.

doi:10.1021/bk-1990-0440.ch021

Cited by 6 publications

(10 citation statements)

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“…The main peak in the C (1s) region is situated at 292.0 eV (Figure a) and is attributed to the carbon atoms of the fluoropolymer chain. ,− , Two smaller satellite peaks were seen on the spectrum of the clean surface. Their positions and intensities exactly correspond to the Mg Kα 3 and Mg Kα 4 X-ray satellites of the (CF 2 ) n peak.…”

Section: Resultsmentioning

confidence: 99%

“…Because of the charging effect the peaks shifted 4.5-5.0 eV to higher binding energies compared with literature data. 12,14,16,18 In order to eliminate these shifts we settled the F (1s) binding energy to 689.1 eV. 16 The fluorine peak is slightly asymmetric (not shown).…”

Section: Resultsmentioning

confidence: 99%

“…One of the advantages of photomodification is the direct and easy possibility for photometalization. Chtaib et al . reported a photoreaction with the moisture in air.…”

Section: Introductionmentioning

confidence: 99%

“…One of the advantages of photomodification is the direct and easy possibility for photometalization. Chtaib et al 18 reported a photoreaction with the moisture in air. Over 300 mJ/ cm 2 laser fluence OH groups were introduced to the polymer, and HF was formed.…”

Section: Introductionmentioning

confidence: 99%

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Excimer Laser Induced Surface Photochemical Reaction of 1,2-Diaminoethane with Poly(tetrafluoroethylene)

1997

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Poly(tetrafluoroethylene) (PTFE or Teflon) is notable for its nonadhesive and nonreactive character. Successful surface photochemical modification of Teflon using liquid 1,2-diaminoethane and λ = 193 nm ArF excimer laser light was demonstrated. The surfaces were analyzed by X-ray photoelectron spectroscopy (XPS), atomic force microscopy, and liquid contact angle and gluing tensile strength measurements. Due to the photomodification the originally poor adhesive property of the PTFE surface was dramatically improved. Surfaces were glued by epoxy resin and the tensile strength of gluing increased by 150 times over that of the unirradiated samples. The surface was metalized electrolessly with silver on selected areas following patterned phototreatment. As a result of the photochemical reaction, hydrophilic and oleophilic property developed on the surfaces at the same time. The water and benzene contact angles decreased from 94° to 40° and from 31° to 0°, respectively. The removal of fluorine and the incorporation of both alkyl groups and nitrogen were identified on XPS spectra. The reaction cross section was determined from water contact angle and XPS results. It was found to be as high as (1.3−1.6) × 10-17 cm2. A radical or a photoinduced electron transfer mechanism is suggested to describe the photoreaction.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…One of the advantages of photomodification is the direct and easy possibility for photometalization. Chtaib et al . reported a photoreaction with the moisture in air.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Excimer Laser Induced Surface Photochemical Reaction of 1,2-Diaminoethane with Poly(tetrafluoroethylene)

1997

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“…A synthetic polyester such as poly(ethy1ene)terephthalate (PET), for instance, seems to show a slight decrease of the glass transition temperature (TJ owing to the capture of even a small amount of It is also known that the adhesion of metallized polymers as in Al/PET structures drastically suffers from the intrusion of moisture in the interface. 4 Our concern in this work is related to the interaction of water sorbed in PET after metallization (Al). First, we present results obtained from a dynamic SIMS study performed on AI/PET structures.…”

Section: Introduction Experimentalmentioning

confidence: 99%

Water interactions in Al/PET

Chtaïb

Péremans

Novis

et al. 1990

Surface & Interface Analysis

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Two cases of water interaction witb virgin PET and with metallized (Al) PET were studied using thermal desorp tion spectroscopy (TDS) and dynamic secondary ion mass speetrometry (SIMS), respectively. On the one hand, the TDS approach tends to show that the water is weakly bound to the polyester (-10 kcal mol-I); on the other hand, the SIMS study performed on metallized PET shows an enhancement of the water concentration around the interface. These results are discussed in order to elucidate tbe presence of such moisture and its influence on the metal/polymer adbesion and corrosion.

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