Der Gebrauchstest als Prüfmethode bei der Beurteilung von Plasten im Lebensmittelverkehr

Woggon, H.; Uhde, W.‐J.; Romminger, K.; Hoppe, Heinz A.

doi:10.1002/food.19740180613

Cited by 10 publications

(2 citation statements)

References 3 publications

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“…, the D P 's listed in Table for Pb, Cd, and Zn for 30°C are compared with D P data for rigid virgin PVC‐u given in Refs. . For this it was assumed that the Cd and Zn costabilizers used in the preparation of the PVC‐u samples were stearates and the van der Waals volumes, V vW 's, of all substances were calculated with the approach given in Refs.…”

Section: Discussionmentioning

confidence: 99%

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Migration of stabilizers and plasticizer from recycled polyvinylchloride

Mercea

Losher

Petrasch

et al. 2017

Vinyl Additive Technology

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The migration of lead, cadmium, and zinc stabilizers from recycled unplasticized and plasticized polyvinylchloride (PVC) into deionized water (DW), saliva (SAS), and sweat (SWS) simulants was investigated. With the results obtained with DW diffusion coefficients in the plastics and partition coefficients at the plastic‐water interface for these additives were determined. The results indicate that organic stabilizers diffuse faster than inorganic ones in the matrix of the PVC. This fact is confirmed also by the low diffusion coefficients found for antimony oxide used as flame retardant in plasticized PVC. The migration rates of the metal (and especially lead) containing stabilizers from unplasticized PVC in DW are very low due to their low diffusion coefficients in the polymer and low solubilities in water. These migration rates are, as expected, higher from plasticized PVC, mainly because of the higher diffusion coefficients in the polymer. The migration levels of lead stabilizers from PVC into SAS are comparable with those into DW. However, for SWS considerably higher lead migration levels were found, probably due to the ability of the lactic acid and/or ammonium hydroxide components of SWS to coordinate the Pb ions resulting in an increase of the solubility of the lead containing stabilizers in this liquid. Migration of the plasticizer diethylhexyl phthalate (DEHP) from plasticized PVC samples into the same liquids was also investigated. The results obtained indicate that these migration processes are mainly controlled and limited by the low solubility of DEHP in these liquids. No enhanced DEHP migration into SWS was observed. J. VINYL ADDIT. TECHNOL., 24:E112–E124, 2018. © 2017 Society of Plastics Engineers

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Section: Discussionmentioning

confidence: 99%

“… (full circles) this scatter is less pronounced than for the D P 's reported in Refs. (open circles). This might be, at least in part, the result of the fact that both in Refs.…”

Section: Discussionmentioning

confidence: 99%

Migration of stabilizers and plasticizer from recycled polyvinylchloride

Mercea

Losher

Petrasch

et al. 2017

Vinyl Additive Technology

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Neuere Ergebnisse zum Migrationsverhalten von UV‐Absorbern auf Benzophenon‐Basis aus Polyolefinen in Lebensmittel

Uhde

Woggon

1976

Nahrung

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The authors deal with the migration behaviour of bezophenone-based ultraviolet absorbents for commodities of low-pressure polyethylene, high-pressure polyethlene, polypropylene and polystyrene. These ultraviolet-absorbent-stabilized plastics (up to 0.5% of ultraviolet absorbent) show a very slight tendency of the light stabilizers towards migration into aqueous, acid or dilute alcoholic foods. Very high migration values are obtained for sunflower oil, Fettsimulans HB 307 or 50% ethanol. The amount of 2-hydroxy-4-octoxybenzophenone which migrates into fat-free foods is only a fraction of the maximum daily dose; a risk to the consumers' health might thus be excluded. In fat-containing foods, the maximum daily dose is also not reached, but the single migration value is higher than the limit value (100 p.p.m.) for total migration. Consequently, the above ultraviolet absorbents should not be used for the ultraviolet stabilization of plastics designed for packing these products. An evaluation of the safety of ultraviolet absorbents of the Dastib type will be possible only if sufficient toxicological data are available.

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Zur antistatischen Ausrüstung von Plasten unter lebensmittelhygienisch‐toxikologischen Gesichtspunkten

Woggon

Uhde

1977

Nahrung

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The authors investigated experimentally the migration behaviour of formed plastics with antistatic finish. The degree of molecular coating on the surface and the rate of diffusion of the antistatics used (ethoxylated amines and alkyl sulphonate) were calculated from the results of washing-off and continuous extraction experiments. The findings are indicative of a good depot effect, i.e. the antistatic action is steadily regenerated by secondary migration. Certain agents such as polyethylene glycol enhance diffusion whereby the values for the migration in normal polystyrene are increased; but this increase is acceptable from the viewpoint of safety. In impact polystyrene, the limiting value for total migration is largely exceeded so that considerable contamination may be expected when it comes in contact with foods. From the viewpoint of food-toxicology, there are concerns about the high specific migration values of alkyl sulphonate. For this reason, its use in the food sector should be limited to such cases where direct contact with foods is excluded.

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Der Gebrauchstest als Prüfmethode bei der Beurteilung von Plasten im Lebensmittelverkehr

Cited by 10 publications

References 3 publications

Migration of stabilizers and plasticizer from recycled polyvinylchloride

Migration of stabilizers and plasticizer from recycled polyvinylchloride

Neuere Ergebnisse zum Migrationsverhalten von UV‐Absorbern auf Benzophenon‐Basis aus Polyolefinen in Lebensmittel

Zur antistatischen Ausrüstung von Plasten unter lebensmittelhygienisch‐toxikologischen Gesichtspunkten

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