Influence of absorbed moisture on solubility of poly(vinyl alcohol) film during atmospheric pressure plasma jet treatment

Peng, Shujing; Gao, Zhiqiang; Sun, Jie; Yao, Lan; Wang, Chunxia; Qiu, Yiping

doi:10.1016/j.surfcoat.2009.10.025

Cited by 10 publications

(3 citation statements)

References 34 publications

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“…The moisture regain of polymers could also influence plasma etching rate as reported in our previous studies [3]. In addition, it has been suggested that the plasma treatment could alter polymer solubility behavior [4]. However, no systematic study has been reported on how these treatment conditions influence the etching rate and solubility of PVA film.…”

Section: Introductionmentioning

confidence: 74%

Influence of Processing Parameters on Atmospheric Pressure Plasma Etching of Polyvinyl Alcohol Films

Peng

Qiu

2011

AMR

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This paper investigated the influence of various processing parameters of atmospheric pressure plasma jet (APPJ) on the etching behavior of PVA films. The etching rate increased as output power, and moisture regain increased. As the treatment time increased, the etching rate increased initially and then decreased. Atomic force microscopy (AFM) results showed that the surface roughness varied as the moisture regain (MR) (2.45%, 9.32%, and 78.31%, respectively) of PVA films changed during APPJ treatment. It was found that higher moisture regain and lower thermal conduction of underlayer had negative effect on the solubility of plasma treated PVA films.

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Section: Introductionmentioning

confidence: 74%

Influence of Processing Parameters on Atmospheric Pressure Plasma Etching of Polyvinyl Alcohol Films

Peng

Qiu

2011

AMR

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“…Peak 1 (284.6 eV) and peak 4 (287 ± 0.3 eV) correspond to CC, CH, and CO group. Peaks 2 (285.8 ± 0.2 eV) and 3 (286.6 ± 0.2 eV) correspond to COH groups and groups containing C with S. − …”

Section: Resultsmentioning

confidence: 99%

Electric-Field-Induced Actuation of Poly(vinyl alcohol) Microfibers

2012

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Poly(vinyl alcohol) (PVA) microfibers were actuated by application of a direct current (dc) electric field; there were large electrosensitivity differences between water-soluble and high-tenacity fibers. In particular, a bending actuation was observed for water-soluble PVA fibers with high sensitivity and large deformation upon applying a dc electric field. The mechanism of bending actuation was investigated through analysis of the chemical constituents, dielectric properties, bending rigidity, and morphology. It was found that the actuation behavior depends mainly on the mechanical and dielectric properties, which are related to the chemical structures of the fibers. It is clear that hydroxyl and carbon−oxygen double bonds are key factors influencing the electroactive characteristics. The content of hydroxyl groups not only determines the solubility of PVA fibers in water but also controls the antielastic bending. The content of CO groups may be related to the dielectric constant and bending rigidity. Furthermore, the CS bond in the X-ray photoelectron spectrum indicates that dimethyl sulfoxide remains even after solvent removal, and this can make it easier for the PVA fibers to become positively charged and then bend toward the cathode.

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“…After exposing it to ALTP, the energetic particles generated in the plasma collide with the material surface and break the covalent bonds. At this stage, surface etching occurs on the material surface by decomposing into low molecular weight substances such as gaseous H 2 O and CO 2 [37] and releasing them in the air. Some new structures such as depressions, cracks, and micropores appear randomly on the sample surface, as shown in Figure 10b.…”

Section: Surface Morphology Analysismentioning

confidence: 99%

Excellent Adhesive Performance for the Thermal Insulation Attribute to Micromorphology Regulation and Controllable Injection of Oxygen‐Containing Groups by Low Temperature Plasma Treatment

Qin

Wang

et al. 2022

Adv Materials Inter

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A low temperature plasma (LTP) surface treatment technology operated under atmospheric conditions with air as the treatment atmosphere is developed for micromorphology regulation and controllable injection of oxygen‐containing groups on the surface of ethylene propylene diene methylene (EPDM) thermal insulation to achieve excellent adhesion performance. Optical emission spectroscopy is used to analyze the active species in the LTP. The key treatment parameters are optimized by contact angle measurements, resulting in thermal insulation sample with 3.32 times higher surface energy than the original sample. The surface morphology and composition of the samples are characterized. It is demonstrated that the surface of the thermal insulation shows new structures, thus increasing the surface area of the thermal insulation. In addition, a large number of oxygen‐containing groups are introduced to the surface of the thermal insulation, especially OH, and the O/C increases by 78.57%. Finally, the peel test is performed on the insulation samples with comparison to the grinding samples, which shows that the peel strength of the treated samples increases by 126.92%, while an additional 22% is also obtained compared to the grinding samples. This excellent adhesive performance is mainly caused by the synergistic effect of chemical crosslinking, hydrogen bonding, and mechanical interlocking.

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Influence of absorbed moisture on solubility of poly(vinyl alcohol) film during atmospheric pressure plasma jet treatment

Cited by 10 publications

References 34 publications

Influence of Processing Parameters on Atmospheric Pressure Plasma Etching of Polyvinyl Alcohol Films

Influence of Processing Parameters on Atmospheric Pressure Plasma Etching of Polyvinyl Alcohol Films

Electric-Field-Induced Actuation of Poly(vinyl alcohol) Microfibers

Excellent Adhesive Performance for the Thermal Insulation Attribute to Micromorphology Regulation and Controllable Injection of Oxygen‐Containing Groups by Low Temperature Plasma Treatment

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