Reduction of the Additives Migration from Poly Vinyl Chloride Films by the Use of Permanent Plasticizers

Boussoum, M.O.; Belhaneche‐Bensemra, Naïma

doi:10.4236/gep.2014.24008

Cited by 2 publications

(3 citation statements)

References 19 publications

(23 reference statements)

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“…Surprisingly, PVC/DOP/SiO 2 nanocomposites degraded slightly in this test (3.9% loss for the blank (PVC/ DOP) and 2.7% for that with 10 wt% SiO 2 ). This decrease may be referred to the migration of DOP [38,39] which leads to the observed loss as PVC chains are not significantly influenced as examined by FTIR. Also as observed in hydrolytic degradation, the presence of nano-SiO 2 especially in higher concentration hindered the degradation of PVC.…”

Section: Resultsmentioning

confidence: 95%

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Physical, dielectric and biodegradation studies of PVC/silica nanocomposites based on traditional and environmentally friendly plasticizers

Saied

Ward

2020

Adv. Nat. Sci: Nanosci. Nanotechnol.

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PVC/nano-SiO 2 nanocomposites based on a bio-based plasticiser (castor oil) and dioctyl phthalate (DOP) were prepared using solution casting method. Castor oil (CO) was used as a complete alternate plasticiser of dioctyl phthalate (DOP) in PVC. The prepared films were characterised by different techniques. In addition, the biodegradation of the films was tested by soil burial, hydrolytic and enzymatic degradation tests. The presence of CO facilitates the dispersion of SiO 2 in PVC matrix and enhances the thermal stability. Besides, it has a significant contribution in reduction of HCl emission during the decomposition of PVC nanocomposites. FTIR spectra of the nanocomposite films showed a considerable change in the intensity of the characteristic peaks of the functional group by addition of SiO 2 and after proceeding hydrolytic and enzymatic degradation as well. Additionally, the presence of SiO 2 plays a dominant role in improving the migration stability and volatility of the plasticiser. Further, the permittivity (ε'), loss factor (tanδ), electric modulus (M') and conductivity (σ) of PVC were also investigated. It is found that the values of ε' and σ of PVC/CO/SiO 2 nanocomposites are higher compared to those of PVC/DOP/SiO 2 nanocomposites. Moreover, electric modulus (M') demonstrates two dielectric relaxation processes. The conductivity values revealed that PVC nanocomposites can perform as antistatic materials. This makes them a good choice for electronic components packaging.

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Section: Resultsmentioning

confidence: 95%

“…Only the peak at wavelength 3360 cm −1 (corresponding to O-H) was present in control, which was absent in the spectra of both hydrolytic degradation and enzymatic degradation samples as it was very broad to be detected. This can be ascribed to some sort of DOP migration [37,38].…”

Section: Resultsmentioning

confidence: 99%

Physical, dielectric and biodegradation studies of PVC/silica nanocomposites based on traditional and environmentally friendly plasticizers

Saied

Ward

2020

Adv. Nat. Sci: Nanosci. Nanotechnol.

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“…An increase in the intensity corresponds to the absorption of liquid through the PVC samples and inversely, a decrease in intensity corresponds to the migration of one or more components in the water. 47…”

Section: Resultsmentioning

confidence: 99%

Mechanical, thermal and physico-chemical behavior of virgin and hydrothermally aged polymeric pipes

Jemii

Hammiche

Boubakri

et al. 2020

Journal of Thermoplastic Composite Materials

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In this paper, an experimental study was conducted to characterize industrial PVC pipes and to investigate the effect of hydrothermal aging on their physico-chemical, thermal, and mechanical behavior. Three temperature (25°C, 60°C and 90°C) and full immersion in distilled water were retained as accelerated hydrothermal conditions. Kinetic of water absorption was examined and Fickian behavior was observed. The aging temperature was found to influence the water uptake behavior of PVC samples. Thermogravimetric analysis (TGA) has proved that the pipe material is not pure, while it consists of PVC reinforced with calcium carbonate (CaCO3). After exposure to accelerated aging, TGA and FTIR analysis exhibit preliminary signs of degradation of PVC samples under the retained conditions. Changes affecting the shape and the color of aged samples were examined. Mechanical properties have been characterized, after immersion of 30 days, with an improvement of strength and stiffness of the aged samples, in particular at elevated aging temperature. However, the aging response is accompanied by a loss of ductility for the aged material. These results, even for brief exposure, could help to understand the behavior of PVC composite pipes under hydrothermal conditions.

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Reduction of the Additives Migration from Poly Vinyl Chloride Films by the Use of Permanent Plasticizers

Cited by 2 publications

References 19 publications

Physical, dielectric and biodegradation studies of PVC/silica nanocomposites based on traditional and environmentally friendly plasticizers

Physical, dielectric and biodegradation studies of PVC/silica nanocomposites based on traditional and environmentally friendly plasticizers

Mechanical, thermal and physico-chemical behavior of virgin and hydrothermally aged polymeric pipes

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