Surface and bulk properties improvement of HDPE by a batch plasma treatment

Meemusaw, Mintra; Magaraphan, Rathanawan

doi:10.1002/app.43011

Cited by 20 publications

(12 citation statements)

References 41 publications

(76 reference statements)

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“…Figure 44 illustrates various atmospheric pressure plasma reactor setups designed to treat polymer powders. These include FBRs, [64,65,[72][73][74]85,86,88] CFBRs, [4,[80][81][82][83][84]90,131] batch reactors, [68,89,151,188] barrel reactors, [75,78,79] and downer reactors. [46,63,[69][70][71]76,77,84,91,189,190] Table 16 provides the major experimental characteristics (e.g., power, polymer type, gas, treatment time) of the described setups including main experimental results.…”

Section: Figure 43mentioning

confidence: 99%

Plasma treatment of polymer powders – from laboratory research to industrial application

Arpagaus

Oberbossel

Rohr

2018

Plasma Processes & Polymers

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This review provides a comprehensive overview of scientific research on plasma treatment of polymer powders over the last 40 years. The current state of the art is described with special focus on basic research in the laboratory and commercially available technologies in industrial applications. Different reactor systems with low‐pressure and atmospheric pressure plasma are presented. Then, numerous application examples of plasma‐treated polymer powders are presented together with a brief overview of the experimental test results. Furthermore, the effects of the process parameters on the final properties of the polymer powders are discussed. Attempts are made to determine similarity parameters and correlations between the generated surface functionalities. Finally, some suggestions for future research are given.

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Section: Figure 43mentioning

confidence: 99%

Plasma treatment of polymer powders – from laboratory research to industrial application

Arpagaus

Oberbossel

Rohr

2018

Plasma Processes & Polymers

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“…High-density polyethylene (HDPE) is one of the commonly used polymers in industrial, medical, and biomedical applications, as it presents: mechanical properties, flexibility, and high chemical stability [ 1 , 2 , 3 , 4 , 5 ]. However, a problem associated with HDPE is that it has a partially hydrophobic surface, due to its low surface energy and lack of functional groups, resulting in limited adhesion and low chemical reactivity [ 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

“…The authors justify that the increase in wettability in polymeric materials is directly associated with the incorporation of functional groups such as C–O, C=O, and O–C–O [ 11 , 28 , 29 , 30 , 31 ]. The incorporated functional groups were verified, by the authors, using the XPS or FTIR techniques, with the associated reduction of the peak of the C–C and C–H bonds [ 5 , 12 , 32 ]. These modifications have been made in polymers such as: polypropylene [ 11 , 31 ], polyethylene [ 3 , 12 , 32 , 33 ], poly (lactic acid) [ 4 , 34 ], polyester [ 9 , 26 , 35 ], and others [ 10 , 29 , 36 , 37 , 38 , 39 , 40 ].…”

Section: Introductionmentioning

confidence: 99%

“…Researches have obtained an increase in the wettability of polyethylene using techniques such as plasma jet, direct fluorination, UV-radiation, leisure, and others [ 23 , 42 , 43 , 44 , 45 , 46 ]. The use of techniques reported the reduction of C–C and C–H bindings from the inclusion of oxygen and nitrogen in the surface [ 3 , 4 , 5 , 23 ]. It is also reported that the introduction of an inert gas facilitates the formation of plasma and promotes the dissociation of hydrocarbons [ 47 , 48 ].…”

Section: Introductionmentioning

confidence: 99%

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Study of High-Density Polyethylene (HDPE) Kinetics Modification Treated by Dielectric Barrier Discharge (DBD) Plasma

et al. 2020

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In this work, the plasma was used in the dielectric barrier discharge (DBD) technique for modifying the high-density polyethylene (HDPE) surface. The treatments were performed via argon or oxygen, for 10 min, at a frequency of 820 Hz, voltage of 20 kV, 2 mm distance between electrodes, and atmospheric pressure. The efficiency of the plasma was determined through the triple Langmuir probe to check if it had enough energy to promote chemical changes on the material surface. Physicochemical changes were diagnosed through surface characterization techniques such as contact angle, attenuated total reflection to Fourier transform infrared spectroscopy (ATR-FTIR), X-ray excited photoelectron spectroscopy (XPS), and atomic force microscopy (AFM). Plasma electronics temperature showed that it has enough energy to break or form chemical bonds on the material surface, impacting its wettability directly. The wettability test was performed before and after treatment through the sessile drop, using distilled water, glycerin, and dimethylformamide, to the profile of surface tensions by the Fowkes method, analyzing the contact angle variation. ATR-FTIR and XPS analyses showed that groups and bonds were altered or generated on the surface when compared with the untreated sample. The AFM showed a change in roughness, and this directly affected the increase of wettability.

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“…In this case, the application of silica with silane coupling agents, grafting, blending with polar polymers, or the use of compatibilizer are popular methods for silica dispersion and adhesion improvements. Moreover, additives (e.g., starch, pro‐oxidants, plasma treatment, or ozonation) increase polymer surface wettability, supposedly enhancing PE biodegradability.…”

Section: Introductionmentioning

confidence: 99%

Tuning the interphase adhesion in high‐density polyethylene–silica nanocomposites with ionic liquids

Donato

Zhigunov

et al. 2019

J of Applied Polymer Sci

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This work addresses the use of ionic liquids (ILs) as multifunctional additives in the formation of high-density polyethylene (HDPE)/sol-gel silica nanocomposites via the melt-mixing process. Different approaches for nanocomposite formation were studied and compared, including (1) silica modification with ILs during the sol-gel process and further addition into the polymer matrix, (2) reactive mixing in which silica-IL filler was formed in situ, and (3) direct IL application in the melt-mixing chamber with nonmodified silica xerogel and HDPE. The nanocomposites were characterized by thermogravimetric analyses, differential scanning calorimetry, scanning electron microscopy, dynamic thermomechanical analyses, transmission electron microscopy, and contact angle analyses. To improve the silica compatibilization with HDPE, we investigated imidazolium ILs that presented at least one nonpolar ionic counterpart. This permitted control of the silica structure, morphology, dispersion, and interfacial interactions, providing enhancements in thermomechanical properties.It has been shown that a higher particle aspect ratio improves PE rigidity, toughness, and thermal and barrier properties. 4-11 The use of nanofillers, such as fumed silica, 4-6 clays, 6,8 and different carbon species, [9][10][11] in various processes has shown promising results. Chrissafis et al. 6 compared the addition of 2.5% multiwall carbon nanotubes, pristine and modified montmorillonite, and surface-treated and untreated SiO 2 nanoparticles to high-density polyethylene (HDPE) via melt-mixing. They concluded that the addition of SiO 2 presented the best dispersion, also increasing the mechanical properties and thermal stability without affecting the melting point and crystallization temperatures. Dorigato et al. 4 melt-compounded with HDPE various untreated (hydrophilic) or surface-treated (hydrophobic) fumed silica nanoparticles and observed that filler aggregation is favored with increasing surface area. They also concluded that the nanosilica dispersion was promoted when hydrophobically modified, consequently enhancing both the thermal degradation resistance and the dimensional stability. Altogether, by adding the surface-treated silica, they Additional Supporting Information may be found in the online version of this article.

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Surface and bulk properties improvement of HDPE by a batch plasma treatment

Cited by 20 publications

References 41 publications

Plasma treatment of polymer powders – from laboratory research to industrial application

Plasma treatment of polymer powders – from laboratory research to industrial application

Study of High-Density Polyethylene (HDPE) Kinetics Modification Treated by Dielectric Barrier Discharge (DBD) Plasma

Tuning the interphase adhesion in high‐density polyethylene–silica nanocomposites with ionic liquids

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