Internally plasticized PVC by four different green plasticizer compounds

Najafi, Vahid; Abdollahi, Hossein

doi:10.1016/j.eurpolymj.2020.109620

Cited by 70 publications

(33 citation statements)

References 22 publications

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“…Although there was no plasticizer migration from the plastics, the mechanical properties were still poor in comparison to PVC/DEHP. Later, in 2020, Najafi and Abdollahi [ 102 ] proposed to covalently attach to PVC chains four different compounds, namely tributyl citrate, propargyl ether tributyl citrate, oleic acid and poly(dimethylsiloxane) diglycidyl ether terminated. The T g of all samples was lower than for neat PVC; however, the values were relatively high (62.6 to 41 °C) in comparison to blends with plasticizers that are not covalently bonded with PVC (in this study, such a comparison was not shown).…”

Section: Internal Plasticizersmentioning

confidence: 99%

Recent Attempts in the Design of Efficient PVC Plasticizers with Reduced Migration

2021

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This paper reviews the current trends in replacing commonly used plasticizers in poly(vinyl chloride), PVC, formulations by new compounds with reduced migration, leading to the enhancement in mechanical properties and better plasticizing efficiency. Novel plasticizers have been divided into three groups depending on the replacement strategy, i.e., total replacement, partial replacement, and internal plasticizers. Chemical and physical properties of PVC formulations containing a wide range of plasticizers have been compared, allowing observance of the improvements in polymer performance in comparison to PVC plasticized with conventionally applied bis(2-ethylhexyl) phthalate, di-n-octyl phthalate, bis(2-ethylhexyl) terephthalate and di-n-octyl terephthalate. Among a variety of newly developed plasticizers, we have indicated those presenting excellent migration resistance and advantageous mechanical properties, as well as those derived from natural sources. A separate chapter has been dedicated to the description of a synergistic effect of a mixture of two plasticizers, primary and secondary, that benefits in migration suppression when secondary plasticizer is added to PVC blend.

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Section: Internal Plasticizersmentioning

confidence: 99%

Recent Attempts in the Design of Efficient PVC Plasticizers with Reduced Migration

2021

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“…Various efforts for producing more eco‐friendly plasticizers have been carried out by using biobased sources such as diester succinates, which display better biodegradation behavior and comparable plasticization properties to these of 2‐ethylhexyl phthalate (DEHP) 7,8 . Various types of plasticizers may be derived from biobased building blocks such as tung oil, 9,10 levulinic acid, 11 eugenol‐levulinic acid or valeric acid, 12 tartaric acid, 13 glycerol‐adipic acid, 14 2,5‐bis‐(hydroxymethyl furan) derived from crop plants, 15 5‐hydroxymethyl‐2‐furancarboxylic acid, 16 castor oil, 17,18 tributyl citrate/propargyl ether tributyl citrate/oleic acid/poly (dimethylsiloxane) diglycidyl ether terminated, 19 among others were developed. Although, the biodegradability and toxicological assays for those compounds are still limited, and their effectiveness is assessed in PVC.…”

Section: Introductionmentioning

confidence: 99%

Developments of biobased plasticizers for compostable polymers in the green packaging applications: A review

Alhanish

Ghalia

2021

Biotechnology Progress

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The demand for biobased materials for various end‐uses in the bioplastic industry is substantially growing due to increasing awareness of health and environmental concerns, along with the toxicity of synthetic plasticizers such as phthalates. This fact has stimulated new regulations requiring the replacement of synthetic conventional plasticizers, particularly for packaging applications. Biobased plasticizers have recently been considered as essential additives, which may be used during the processing of compostable polymers to enormously boost biobased packaging applications. The development and utilization of biobased plasticizers derived from epoxidized soybean oil, castor oil, cardanol, citrate, and isosorbide have been broadly investigated. The synthesis of biobased plasticizers derived from renewable feedstocks and their impact on packaging material performance have been emphasized. Moreover, the effect of biobased plasticizer concentration, interaction, and compatibility on the polymer properties has been examined. Recent developments have resulted in the replacement of synthetic plasticizers by biobased counterparts. Particularly, this has been the case for some biodegradable thermoplastics‐based packaging applications.

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“…The counterfeiter may use PVC with a different compatibilizer in their product [ 32 ]. Hence, it can be concluded that another quality of PVC was used to produce the counterfeit pharmaceutical plastic blisters, obtainable from a different supplier or by using a compatibilizer that is different from the legitimate manufacturer of the authentic medicine [ 33 ]. As demonstrated in this study, DSC allows differentiating between different qualities of PVC solely based on their thermal transitions, despite having a similar FTIR spectrum.…”

Section: Resultsmentioning

confidence: 99%

Proof-of-Concept of Detection of Counterfeit Medicine through Polymeric Materials Analysis of Plastics Packaging

2021

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The detection of counterfeit pharmaceuticals is always a major challenge, but the early detection of counterfeit medicine in a country will reduce the fatal risk among consumers. Technically, fast laboratory testing is vital to develop an effective surveillance and monitoring system of counterfeit medicines. This study proposed the combination of Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) and Differential Scanning Calorimetry (DSC) for the quick detection of counterfeit medicines, through the polymer analysis of blister packaging materials. A sample set containing three sets of original and counterfeit medicine was analyzed using ATR-FTIR and DSC, while the spectra from ATR-FTIR were employed as a fingerprint for the polymer characterization. Intending to analyze the polymeric material of each sample, DSC was set at a heating rate of 10 °C min−l and within a temperature range of 0–400 °C, with nitrogen as a purge gas at a flow rate of 20 mL min−1. The ATR-FTIR spectra revealed the chemical characteristics of the plastic packaging of fake and original medicines. Further analysis of the counterfeit medicine’s packaging with DSC exhibited a distinct difference from the original due to the composition of polymers in the packaging material used. Overall, this study confirmed that the rapid analysis of polymeric materials through ATR-FTIR and comparing DSC thermograms of the plastic in their packaging effectively distinguished counterfeit drug products.

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Internally plasticized PVC by four different green plasticizer compounds

Cited by 70 publications

References 22 publications

Recent Attempts in the Design of Efficient PVC Plasticizers with Reduced Migration

Recent Attempts in the Design of Efficient PVC Plasticizers with Reduced Migration

Developments of biobased plasticizers for compostable polymers in the green packaging applications: A review

Proof-of-Concept of Detection of Counterfeit Medicine through Polymeric Materials Analysis of Plastics Packaging

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