Changes in surface properties of polymethylmethacrylate (PMMA) treated with air plasma

Rymuszka, Diana; Terpiłowski, Konrad; Hołysz, Lucyna; Chibowski, Emil

doi:10.1515/umcschem-2015-0006

Cited by 6 publications

(7 citation statements)

References 29 publications

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“…The surface of specimens 1 (0.3-g hydrophobic nanoparticles of SiO 2 ) and 2 (0.3-g hydrophilic nanoparticles of SiO 2 ) that are shown in Figure 5(b) and (c), respectively, presented a homogeneous surface with minimal irregularities, while the specimens 3 (0.27-g hydrophobic and 0.03-g hydrophilic nanoparticles of SiO 2 ) and 4 (0.03-g hydrophobic and 0.27-g hydrophilic nanoparticles of SiO 2 ), corresponding to Figure 5(d) and (e), respectively, exhibit more pronounced irregular regions that can modify the behavior of the water in contact with the surfaces. 19 Contact angle Figure 6 shows the water drop and the contact angle values on the surface of the reference matrix of PMMA and PMMA with hydrophilic and hydrophobic nanoparticles of SiO 2 to different concentrations with a deposition time of 30 s. The specimens showed a hydrophilic behavior (angular contact < 90 ) due to the high polarity of the PMMA matrix 20 and the incorporation of the SiO 2 nanoparticles. 21 The specimen 0 had the greatest contact angle with a magnitude of 79.41 .…”

Section: Resultsmentioning

confidence: 99%

“…Figure 6 shows the water drop and the contact angle values on the surface of the reference matrix of PMMA and PMMA with hydrophilic and hydrophobic nanoparticles of SiO 2 to different concentrations with a deposition time of 30 s. The specimens showed a hydrophilic behavior (angular contact < 90°) due to the high polarity of the PMMA matrix 20 and the incorporation of the SiO 2 nanoparticles. 21 The specimen 0 had the greatest contact angle with a magnitude of 79.41°.…”

Section: Resultsmentioning

confidence: 99%

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Characterization and sliding wear performance of PMMA reinforced with SiO₂ nanoparticles

Pérez

Vera-Cárdenas

Luna‐Bárcenas

et al. 2019

Journal of Thermoplastic Composite Materials

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The characterization and wear sliding performance of the poly(methyl methacrylate) (PMMA) reinforced with hydrophilic and hydrophobic nanoparticles of silicon dioxide (SiO2) was studied. The final polymer matrix was treated in a water bath at a temperature of 100°C for 6 h. Steel balls were used to slide against the surface of PMMA specimens reinforced with SiO2 nanoparticles. Sliding wear tests were carried out in wet sliding conditions applying a drop of distilled water between the specimen and the ball. The tests were carried out up to 9000 cycles at room temperature. A frequency of 5 Hz, a stroke amplitude of 3 mm, and a maximum contact pressure of 1.087 GPa were selected. Fourier transform infrared spectroscopy spectrum, scanning electron microscopy, and microhardness and roughness of the pure PMMA and PMMA/SiO2 were obtained. The coefficient of friction and wear rates were calculated, and the main wear mechanisms found were adhesion wear, plastic deformation, ploughing, and pitting. The results showed that the addition of hydrophobic nanoparticles of SiO2 may be employed to enhance the wear resistance of external automotive parts made of polymeric compound matrix. Finally, the specimens showed a hydrophilic behavior (angular contact < 90°) due to the high polarity of the PMMA matrix and the incorporation of the SiO2 nanoparticles.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Characterization and sliding wear performance of PMMA reinforced with SiO₂ nanoparticles

Pérez

Vera-Cárdenas

Luna‐Bárcenas

et al. 2019

Journal of Thermoplastic Composite Materials

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“…Ekspozycja badanych polimerów w plazmie generowanej w różnych gazach (powietrze, tlen, argon) prowadzi do obniżenia kątów zwilżania wody (podobnie jak i dijodometanu i formamidu nie prezentowanych w tej pracy [17][18][19] Bez względu na rodzaj stosowanej plazmy inni autorzy po modyfikacji plazmą uzyskali podobny trend zmian zwilżalności PMMA [8,42,[65][66][67][68][69], PEEK [70−72], POM [73], PA6 [74], PC [75,76], PP [77,78]. Kamińska i in.…”

Section: Zmiany Zwilżalności I Adhezji Wody Do Powierzchni Polimerów Po Działaniu Plazmyunclassified

“…Ponadto zaobserwowano również wzrost ilości grup C=O (287,5 eV) oraz COO-i N-C=O (288,9 eV), odpowiednio z 3,1% do 4,6% oraz z 0,9% to 7,6%, co wyraźnie świadczy o procesie utleniania oraz wprowadzania azotu (wzrost ilości azotu do 2,4%) oraz wzroście ilości ugrupowań węgiel-tlen i węgiel-azot, co z kolei wpływa na wzrost polarności powierzchni. To z kolei znajduje odzwierciedlenie w niższych kątach zwilżania oraz wzroście swobodnej energii powierzchniowej PEEK, a w szczególności składowej polarnej [17].…”

Section: Zmiany Zwilżalności I Adhezji Wody Do Powierzchni Polimerów Po Działaniu Plazmyunclassified

Wpływ Działania Plazmy Niskotemperaturowej Na Zmiany Zwilżalności Wybranych Polimerów

Hołysz¹

2021

WiadChem

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Wprowadzenie 1. Plazma 1.1. Praktyczne wykorzystanie plazmy niskotemperaturowej 1.2. Aktywacja powierzchni plazmą 1.3. Zalety i wady modyfikacji powierzchni plazmą 1.4. Wpływ plazmy niskotemperaturowej na właściwości fizykochemiczne polimerów 2. Zwilżanie powierzchni ciał stałych 3. Badania eksperymentalne zwilżalności powierzchni wybranych polimerów przed i po działaniu plazmy 3.1. Aktywacja polimerów plazmą 3.2. Pomiary kątów zwilżania cieczy na powierzchni polimerów 4. Zmiany zwilżalności i adhezji wody do powierzchni polimerów po działaniu plazmy Uwagi końcowe Piśmiennictwo cytowane

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“…Similar results regarding the surface oxidation of PMMA have been previously reported. [33][34][35] Contact angle measurements were performed on the PMMA nanobers before and aer UV treatment to study the surface wettability of the PMMA nanobers. As shown in Fig.…”

Section: Effect Of Uv Treatment On Substrate Morphologymentioning

confidence: 99%

Stable and sensitive amino-functionalized graphene/polyaniline nanofiber composites for room-temperature carbon dioxide sensing

2019

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This article describes the preparation and characterization of amino-functionalized graphene (AmG)/ polyaniline (PANI)/poly(methyl methacrylate) (PMMA) nanofiber mats along with the efficiency of these nanofiber composites as a new material for sensing carbon dioxide (CO 2 ) gas. The surfaces of the PMMA nanofibers were treated at room temperature by ultraviolet (UV) radiation. AmG/PANI was then deposited on the surfaces of the PMMA nanofibers via chemical oxidative polymerization. It was concluded that UV radiation reduced the hydrophobicity of the PMMA surface through introducing oxidized groups onto the surface. The electrical response of the gas sensor based on the composite nanofibers was investigated at room temperature using various concentrations of CO 2 gas. Compared to the PANI/PMMA nanofibers, the AmG/PANI nanofiber composites displayed a better electrical resistance response to CO 2 at room temperature; the AmG/PANI nanofiber composites exhibited higher sensitivity and faster response times under the same conditions. Fig. 1 (a) An SEM image of PMMA nanofibers and the distribution of their diameters (the inset shows an SEM image at higher magnification). (b) An SEM image of PMMA after the deposition of AmG/PANI. (c) An SEM image of PMMA after UV treatment and the distribution of PMMA fiber diameters (the inset shows an SEM image with higher magnification). (d) An SEM image of PMMA nanofibers after UV treatment and the deposition of AmG/PANI. This journal is

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Changes in surface properties of polymethylmethacrylate (PMMA) treated with air plasma

Cited by 6 publications

References 29 publications

Characterization and sliding wear performance of PMMA reinforced with SiO₂ nanoparticles

Characterization and sliding wear performance of PMMA reinforced with SiO₂ nanoparticles

Wpływ Działania Plazmy Niskotemperaturowej Na Zmiany Zwilżalności Wybranych Polimerów

Stable and sensitive amino-functionalized graphene/polyaniline nanofiber composites for room-temperature carbon dioxide sensing

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Changes in surface properties of polymethylmethacrylate (PMMA) treated with air plasma

Cited by 6 publications

References 29 publications

Characterization and sliding wear performance of PMMA reinforced with SiO2 nanoparticles

Characterization and sliding wear performance of PMMA reinforced with SiO2 nanoparticles

Wpływ Działania Plazmy Niskotemperaturowej Na Zmiany Zwilżalności Wybranych Polimerów

Stable and sensitive amino-functionalized graphene/polyaniline nanofiber composites for room-temperature carbon dioxide sensing

Contact Info

Product

Resources

About

Characterization and sliding wear performance of PMMA reinforced with SiO₂ nanoparticles

Characterization and sliding wear performance of PMMA reinforced with SiO₂ nanoparticles