Contact angle analysis of corona treated polypropylene films

Vlaeva, I.; Yovcheva, T.; Viraneva, A.; Kitova, S.; Exner, Ginka; Гужова, А А; Галиханов, М. Ф.

doi:10.1088/1742-6596/398/1/012054

Cited by 19 publications

(12 citation statements)

References 14 publications

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“…The blends were fabricated on aluminum sheets. The surface free energy of the aluminum, PP and PEG are 40, 30.4, and 42.8 mJ m −2 , respectively. Thus, the interaction between aluminum and PEG is favored over PP.…”

Section: Resultsmentioning

confidence: 99%

Improving the antifouling properties of polypropylene surfaces by melt blending with polyethylene glycol diblock copolymers

Garle

White

Budhlall

2017

J of Applied Polymer Sci

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Protein-resistant polyethylene-block-poly(ethylene glycol) (PE-b-PEG) copolymers of different molecular weights at various concentrations were compounded by melt blending with polypropylene (PP) polymers in order to enhance their antifouling properties. Phase separation of the PE-b-PEG copolymer and its migration to the surface of the PP blend, was confirmed by attenuated total reflectance-Fourier transform infrared, X-ray photoelectron spectroscopy, and static water contact angle measurements. Enrichment of PEG chains at the surface of the blends increased with increasing PE-b-PEG copolymer concentration and molecular weight. The PP blends compounded with PE-b-PEG copolymer having the lowest molecular weight (875 g mol 21 ), at the lowest concentration (1 wt %), gave the lowest bovine serum protein adsorption (30% less) compared to that of neat PP. At higher concentrations (5 and 10 wt %), and higher molecular weights (920, 1400, and 2250 g mol 21 ), the PE-b-PEG copolymers leached-out resulting in protein adsorption comparable to that of neat PP.Polypropylene (PP) is a widely used material for biomedical applications due to its many desirable properties, including low cost, ease of processing, and sterilization. 13 It finds extensive use in the biomedical field 14 as filtration membranes, 15 textiles/fabrics, and medical implants such as surgical meshes 16,17 and vascular prostheses. 18 These applications necessitate extraordinary wettability and protein repellency. 19 Wettability results from hydrophilic functional groups binding or interacting via H-bonding to water (H 2 O) molecules, leading to the formation of a highly hydrated layer of H 2 O molecules surrounding the hydrophilic groups. This hydrated layer results in steric hindrance to any incoming protein molecules, preventing their adsorption. 20Additional Supporting Information may be found in the online version of this article.

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Section: Resultsmentioning

confidence: 99%

Improving the antifouling properties of polypropylene surfaces by melt blending with polyethylene glycol diblock copolymers

Garle

White

Budhlall

2017

J of Applied Polymer Sci

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“…Pursuant to different techniques (e.g. Owens, Wendt, Kaelble and Uy and Bickerman's methods [35]) contact angle values are recorded for the sessile drop in equilibrium. However, it is almost impossible for electret materials.…”

Section: Resultsmentioning

confidence: 99%

Effect of aluminum oxide coating on structural, barrier and electret properties of polyethylene terephthalate films

Галиханов

Гужова

Efremova

et al. 2015

IEEE Trans. Dielect. Electr. Insul.

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Polyethylene terephthalate film 12 m thick with vacuum-deposited AlO x coating was studied. Optical and atomic force microscopy was used to investigate surface topology. Film haze, optical density, surface tension, oxygen and vapor transmission rates were measured to estimate barrier performances of the film. To study effect of the coating on electret properties of the film surface potential, electric field strength and efficient surface charge density and thermally stimulated surface potential relaxation were measured. Optimal charging conditions for coated and uncoated polyethylene terephthalate films were found. Interaction of the film with different model mediums simulating foodstuff was studied. Coated electret film can be used as active packaging material with high barrier properties.

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“…Two different polypropylene films have been analysed, Film1 and Film2, for reasons of industrial privacy. They are Journal of Industrial Engineering 3 both PET films, but the second has been subjected to a corona surface treatment [6].…”

Section: Materials Measurement Method and Resultsmentioning

confidence: 99%

“…In this paper, particular reference is made to the method (OWRK) [4] among the methods available in the literature for several reasons: the physical hypotheses appear complete and suitable to the type of polymer studied, and the approach is operationally feasible, even in an industrial context. For these reasons, it has been used in other works described in the literature [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Validation of Methods for the Optical Characterisation of the Wettability of Polymeric Films for Food Packaging

D’Emilia

Natale

2014

Journal of Industrial Engineering

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A methodology is described for the theoretical-experimental evaluation of the measurement uncertainty of the polar and dispersive components of the surface free energy (SFE) in polypropylene films; these parameters are related to the film wettability of adhesives and inks. The proposed method is based on the measurement by means of a vision system of the contact angles of liquid drops deposited on the film itself, which allows for obtaining, through mathematical models drawn from the literature, the physical quantities of interest. The effect of the principal influence parameters has been experimentally evaluated, and testing has allowed the defining of the technical procedures readily transferable in the industry. The uncertainty assessment is interesting not only to correctly evaluate experimental data but also to characterise the reproducibility of the effects of techniques for improving the wettability of films, such as surface treatments.

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Contact angle analysis of corona treated polypropylene films

Cited by 19 publications

References 14 publications

Improving the antifouling properties of polypropylene surfaces by melt blending with polyethylene glycol diblock copolymers

Improving the antifouling properties of polypropylene surfaces by melt blending with polyethylene glycol diblock copolymers

Effect of aluminum oxide coating on structural, barrier and electret properties of polyethylene terephthalate films

Validation of Methods for the Optical Characterisation of the Wettability of Polymeric Films for Food Packaging

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