Surface evaluation of reactive plasma-modified microporous polypropylene membrane by static contact angle analysis

Liang, Chaoyun; Li, Chun; Chen, Ting‐Hao; Cheng, Chou‐Yuan; Huang, Chun

doi:10.1016/j.polymdegradstab.2018.12.013

Cited by 15 publications

(6 citation statements)

References 24 publications

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“…However, in another study [47], it has been shown that initially, the plasma causes etching of the surface, while the extension of its time (4 and more minutes) favors the redeposition of fragments on the polymer surface, which leads to increasing its hydrophobicity. Notably, several researchers observed the phenomenon of the rapid recovery of membrane hydrophobicity within 1-2 days after plasma exposure [36,45]. In this study, good stability of the obtained changes was reported, especially for higher values of the plasma excitation power (Figure 5).…”

Section: Conditions Of Plasma Treatmentsupporting

confidence: 66%

“…Notably, several researchers observed the phenomenon of the rapid recovery of membrane hydrophobicity within 1–2 days after plasma exposure [ 36 , 45 ]. In this study, good stability of the obtained changes was reported, especially for higher values of the plasma excitation power ( Figure 5 ).…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, due to a plasma treatment on the PP surface, low molecular oxidized compounds (LMOCs) were created. The hydrophilic LMOCs are weakly bound to the polymer surface and can be easily removed from its surface by rinsing with water or disappear during the membranes storage (ageing phenomenon) [ 36 ]. This confirms the conclusion presented by Wade et al [ 48 ], indicating that the gas effect depends on the polymer type.…”

Section: Resultsmentioning

confidence: 99%

“…When using inert gases such as argon (Ar) or helium (He), the obtained plasma gas does not contain new components that can be deposited on the membrane surface, as is the case with, e.g., CF 4 plasma [ 30 , 31 ]. However, Ar or He plasma may cause etching/degradation of the polymer surface which changes surface morphology and porosity [ 36 ]. Gas plasma, which contains air, O 2 , CO 2 or H 2 O demonstrates a similar effect [ 35 , 37 ].…”

Section: Introductionmentioning

confidence: 99%

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Stability of Ar/O2 Plasma-Treated Polypropylene Membranes Applied for Membrane Distillation

Gryta

Tomczak

2021

Membranes

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In the present work, Ar/O2 plasma treatment was used as a surface modification tool for polypropylene (PP) membranes. The effect of the plasma conditions on the properties of the modified PP surface has been investigated. For this purpose, the influence of gas composition and its flow rate, plasma power excitation as well as treatment time on the contact angle of PP membranes has been investigated. The properties of used membranes were determined after various periods of time: immediately after the modification process as well as after one, four and five years of storage. Moreover, the used membranes were evaluated in terms of their performance in long-term MD process. Through detailed studies, we demonstrated that the performed plasma treatment process effectively enhanced the performance of the modified membranes. In addition, it was shown that the surface modification did not affect the degradation of the membrane matrix. Indeed, the used membranes maintained stable process properties throughout the studied period.

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Section: Conditions Of Plasma Treatmentsupporting

confidence: 66%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Stability of Ar/O2 Plasma-Treated Polypropylene Membranes Applied for Membrane Distillation

Gryta

Tomczak

2021

Membranes

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“…So far, a number of surface modification techniques have been employed for the hydrophilic modification of PP fiber ranging from physical processes to chemical processes such as plasma surface treatment, corona discharge, ultraviolet (UV) irradiation, polymerization, and chemical oxidation. [7][8][9][10][11][12][13] Plasma is a state of matter, which contains a large number of molecules, atoms, or charged particles. The strategy has been used to increase or decrease wettability and other properties of textile surfaces.…”

mentioning

confidence: 99%

Study of the surface properties of polypropylene by enzyme treatment

Jia

Yao

Guo

et al. 2022

Textile Research Journal

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Surface modification of polypropylene is performed in this work by enzyme-catalyzed post-processing strategy. The polyDOPA was synthesized by in-situ polymerization in the present of laccase and deposited on the polypropylene surface. The effect of various process variables namely processing step, pH, time, and temperature is studied at various levels. The results show that one-bath and one-step method is the optimal mode. Various functional groups incorporated to the polymer surface are confirmed by attenuated total reflectance-Fourier-transform infrared spectroscopy. The effect of process variables on surface morphology of polymers is evaluated by scanning electron microscopy, revealing that the surface of the polypropylene is covered with thin burrs, and these are regarded as polyDOPA adhered after treatment. Furthermore, the electrostatic charge decay time and contact angle as well as capillary wetting measurements of the modified polypropylene are 0.61 s and 75.33°, respectively, indicating its fine anti-static electricity and better wettability. Besides, this material shows dark gray colors and exhibits excellent ultraviolet-resistance performance. Interestingly, the modification process nearly has no influences on the mechanical property.

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Comparison of the Effect of Excimer Laser Irradiation and Plasma Treatment on Polypropylene Membrane Surface

Jaleh

Mohazzab

et al. 2021

Plasma Modification of Polyolefins

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Surface evaluation of reactive plasma-modified microporous polypropylene membrane by static contact angle analysis

Cited by 15 publications

References 24 publications

Stability of Ar/O2 Plasma-Treated Polypropylene Membranes Applied for Membrane Distillation

Stability of Ar/O2 Plasma-Treated Polypropylene Membranes Applied for Membrane Distillation

Study of the surface properties of polypropylene by enzyme treatment

Comparison of the Effect of Excimer Laser Irradiation and Plasma Treatment on Polypropylene Membrane Surface

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