Adhesion characteristics of plasma-treated polypropylene to mild steel

Guezenoc, Hervé; Ségui, Y.; Thery, S.; Asfardjani, K.

doi:10.1163/156856193x00943

Cited by 22 publications

(4 citation statements)

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“…Energetic treatments such as plasma or corona discharge have been used on polymer materials with good levels of success (1)(2)(3)(4)(5)(6)(7)(8)(9)(10); however laser treatment gives the potential to target specific areas, and to provide different treatments in different positions of a device with greater precision than alternative techniques.…”

Section: Introductionmentioning

confidence: 99%

Laser surface modification of poly(etheretherketone) to enhance surface free energy, wettability and adhesion

Wilson

Jones

Salamat-Zadeh

et al. 2015

International Journal of Adhesion and Adhesives

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Section: Introductionmentioning

confidence: 99%

Laser surface modification of poly(etheretherketone) to enhance surface free energy, wettability and adhesion

Wilson

Jones

Salamat-Zadeh

et al. 2015

International Journal of Adhesion and Adhesives

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“…However, a subsequent slow increase of polar surface energy and O/C ratio may lead to better wetting, but results in poor adhesive joint strength. Guezenoc et al [13] correlated the lap shear tensile strength with O/C ratio Table II, indicate that both LSTS and the adhesion force increase initially for a short exposure time of 10 seconds. On increasing the exposure time to 60 seconds, both the LSTS and the adhesion force decrease a little.…”

Section: Resultsmentioning

confidence: 99%

Variation of Lap Shear Tensile Strength of Polycarbonate–Mild Steel Adhesive Joints with DC Glow Discharge Modified Polycarbonate

Panwar

Barthwal

Ray

2007

Metall Mater Trans A

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It has been observed that the wettability/surface energy of polycarbonate (PC) changes with the variation in process parameters, such as discharge power and time of exposure of DC glow discharge. The wettability of the PC surface has been measured by the contact angle measurements of two test liquids, such as water and formamide, by the sessile drop method. The lap shear tensile strength (LSTS) of PC to the mild steel (MS) adhesive joint has been measured with both the as-received polymer and those exposed under DC glow discharge. An appreciable increase in the LSTS has been attained for samples treated under DC glow discharge at a lower power level and also at a short exposure time at higher power. This increase in LSTS is attributed to increased polar surface energy with increasing power and time of exposure. After a certain level of surface modification of the PC, the strength of the adhesive joint deteriorates, while the total surface energy and its polar component may increase continuously. The subsurface damage taking place particularly at long exposure times and at higher power may lead to deterioration of LSTS in spite of a strong interface between the polymer and the adhesive. In such a case, the joint is observed to fracture not across the interface but through the subsurface. The optimum exposure limits the subsurface damage while creating a strong interface.

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“…The oxidation of the surface layer and the formation of the following groups: C-O, C=O, O-C=O, C-O-O was detected, which increases wettability and free surface energy. This effect increases with increasing sample exposure time and the discharge's power for polyolefins [22].…”

Section: Introductionmentioning

confidence: 96%

Surface Modification of Silicone by Dielectric Barrier Discharge Plasma

et al. 2023

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The objective of the study was to modify the surface of the silicone rubber, using dielectric barrier discharge (DBD) to improve its hydrophilic properties. The influence of the exposure time, discharge power, and gas composition—in which the dielectric barrier discharge was generated—on the properties of the silicone surface layer were examined. After the modification, the wetting angles of the surface were measured. Then, the value of surface free energy (SFE) and changes in the polar components of the modified silicone over time were determined using the Owens–Wendt method. The surfaces and morphology of the selected samples before and after plasma modification were examined by Fourier-transform infrared spectroscopy with attenuated total reflectance (FTIR–ATR), atomic force microscopy AFM, and X-ray photoelectron spectroscopy (XPS). Based on the research, it can be concluded that the silicone surface can be modified using a dielectric barrier discharge. Surface modification, regardless of the chosen method, is not permanent. The AFM and XPS study show that the structure’s ratio of oxygen to carbon increases. However, after less than four weeks, it decreases and reaches the value of the unmodified silicone. It was found that the cause of the changes in the parameters of the modified silicone rubber is the disappearance of oxygen-containing groups on the surface and a decrease in the molar ratio of oxygen to carbon, causing the RMS surface roughness and the roughness factor to return to the initial values.

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Adhesion characteristics of plasma-treated polypropylene to mild steel

Cited by 22 publications

References 0 publications

Laser surface modification of poly(etheretherketone) to enhance surface free energy, wettability and adhesion

Laser surface modification of poly(etheretherketone) to enhance surface free energy, wettability and adhesion

Variation of Lap Shear Tensile Strength of Polycarbonate–Mild Steel Adhesive Joints with DC Glow Discharge Modified Polycarbonate

Surface Modification of Silicone by Dielectric Barrier Discharge Plasma

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