Surface chlorination of polypropylene film by CHCI<sub>3</sub> plasma

Inagaki, N.; Tasaka, Shigeru; Suzuki, Yukio

doi:10.1002/app.1994.070511304

Cited by 23 publications

(9 citation statements)

References 16 publications

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“…The reactive component of a CCl 4 plasma is chlorine atoms with a small concentration of CCl, CCl 2 , CCl 3 radicals. This abundance of chlorine radicals can graft onto an organic surface via H‐substitution and the opening of unsaturated bonds to yield CCl, CCl 2 , and CCl 3 functionalities 22–24. The chlorination of PMP occurred in the CCl 4 plasma.…”

Section: Experimental Partmentioning

confidence: 99%

Effect of Plasma Treatment on the Gas Permeability of Poly(4‐methyl‐2‐pentyne) Membranes

Shao¹,

Samseth²,

Hägg³

2007

Plasma Processes & Polymers

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The surface of a poly(4‐methyl‐2‐pentyne) membrane was modified by plasma treatment using CCl4; the permeabilities of O2, N2, H2, CH4 and CO2 were measured before and after the plasma treatment, and the selectivities of O2/N2, H2/N2, CO2/N2, CO2/CH4 and H2/CH4 were calculated. The selectivities were found to be remarkably improved after plasma treatment while gas permeabilities decreased. The effect of the plasma conditions such as the treatment time and discharge power on the permeabilities of the membranes was investigated in detail. The surface of modified membranes was analyzed by XPS, and the contact angles of water on the membranes were measured by a contact‐angle goniometer.

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Section: Experimental Partmentioning

confidence: 99%

Effect of Plasma Treatment on the Gas Permeability of Poly(4‐methyl‐2‐pentyne) Membranes

Shao¹,

Samseth²,

Hägg³

2007

Plasma Processes & Polymers

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“…applied power and treatment time) it is anticipated that the chlorine content of the surface increases with increasing C Cl , unless saturation occurs. Polypropylene, for example, has been chlorinated in CHCl 3 plasmas 10 .…”

Section: Resultsmentioning

confidence: 99%

Plasma Treatment of Crosslinked Polyethylene Tubes for Improved Adhesion of Water-based Paints

et al. 2018

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Cold plasmas fed trichloromethane-argon mixtures were used to treat cross-linked polyethylene (PE) to improve the adhesion of water-based paint. The effects of the plasma treatment undertaken at different percentages of CHCl 3 in the plasma feed, C Cl , were investigated using Infrared Spectroscopy in Diffuse Reflection (DR) mode, Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS), X-ray Photoelectron Spectroscopy (XPS), goniometry for surface contact angle measurements, profilometry for roughness measurements, and paint adhesion tests. All the treatments modify the surfaces by introducing chlorine. Oxygen is present in the bulk and on the surfaces of the treated and untreated material. The treatments do not alter the bulk, but tend to increase the surface roughness and contact angle. When CHCl 3 is present in the plasma subsequent paint adhesion is improved from a very poor classification of 4 to an excellent classification of 0 (assessed according to the appropriate Brazilian standards (BS EN ISO 2409:2007 and BS 3900-E6:2007A)). Surface roughness is not increased at low C Cl but improved paint adhesion occurs for all C Cl > 0. Although the causes of the improved paint adhesion with the plasma treatment are unclear, they may be related to the plasma activation of unsaturated carbon and oxygen functionalities.

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“…Inagaki et al [1,2], for example, used CCl 4 plasmas to introduce chlorine (and oxygen) onto the surfaces of conventional polymers, thus, for example, decreasing the surface contact angle of polypropylene [1]. Similarly, the same group also reported the chlorination of polypropylene in chloroform plasmas, thereby reducing the contact angle from 95°to 73° [2]. Roughly a decade later, Upadhyay and Bhat reported the treatment of polypropylene in chloroform, carbon tetrachloride or dichloromethane plasmas [3].…”

Section: Introductionmentioning

confidence: 99%

Characterization of amorphous hydrogenated chlorinated plasma polymers

Rossi

Schreiner

Durrant

2016

Surface and Coatings Technology

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Thin films were produced by plasma enhanced chemical vapor deposition from propanol-chloroform-argon mixtures. The main system parameter studied was the percentage of chloroform in the chamber feed, C Cl. Plasma polymers doped with chlorine were produced at deposition rates of up to 110 nm min −1. As revealed by infraredand X-ray photoelectron spectroscopy, the films consisted of a hydrogenated carbon matrix with a carbon content of at least 80 at.%, and a roughly constant oxygen content of about 12 at.%. A maximum chlorine content of~8 at.% was obtained. The surface contact angle of the films was around 75°, and was reduced slightly at greater chlorine contents. Optical properties were obtained from ultraviolet-visible-near infrared spectroscopic data. While the refractive index of the films was around 1.56 independently of C Cl , the chlorinated films showed a distinct optical gap of~2.5 eV compared to~1.9 eV for the unchlorinated film.

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Surface chlorination of polypropylene film by CHCI₃ plasma

Cited by 23 publications

References 16 publications

Effect of Plasma Treatment on the Gas Permeability of Poly(4‐methyl‐2‐pentyne) Membranes

Effect of Plasma Treatment on the Gas Permeability of Poly(4‐methyl‐2‐pentyne) Membranes

Plasma Treatment of Crosslinked Polyethylene Tubes for Improved Adhesion of Water-based Paints

Characterization of amorphous hydrogenated chlorinated plasma polymers

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Surface chlorination of polypropylene film by CHCI3 plasma

Cited by 23 publications

References 16 publications

Effect of Plasma Treatment on the Gas Permeability of Poly(4‐methyl‐2‐pentyne) Membranes

Effect of Plasma Treatment on the Gas Permeability of Poly(4‐methyl‐2‐pentyne) Membranes

Plasma Treatment of Crosslinked Polyethylene Tubes for Improved Adhesion of Water-based Paints

Characterization of amorphous hydrogenated chlorinated plasma polymers

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Surface chlorination of polypropylene film by CHCI₃ plasma