Polyethylene pro-oxidants

Eow-density polyethylene - masterbatch Eow-density polyethylene - pro-oxidant Maleic anhydride Melt flow index Mass spectrometry Nuclear magnetic resonance Oxidative induction time Polyamide-6... 

Using the same three materials (A, B and C, made of poly-eaprolactone, polyester aUpha/arom, and polyethylene + pro oxidant), no toxie effect was... 

Another impact on the environment is the possible production of micro fragments during the biodegradation process. To assess this micro fragment production, experiments conducted in laboratory conditions and real conditions have been set up (Charrier, 2003). Three films were tested (i) polyester aUph/ arom -l- starch, (ii) polyester aUph/arom -i- natural fibres and (iii) polyethylene + pro oxidant. The results are shown in Table 19.4. In test A, samples of films were ineorporated into pots containing a natural soil. These pots were put in an oven at 30 C for six months, and were regularly watered to ensure a constant soil humidity. A similar experiment, test B, was performed in compost... 

Polyethylene + pro oxidant Soil test 100 Compost test 100... 

The results in Table 19.4 show elearly that the polyethylene + pro-oxidant additive material does not degrade either in soil or in compost. In addition, this material is not biodegradable as shown in section 19.3.1. The fates of these fragments as well as of the toxic additives are still unknown and a risk of accumulation of all these substances is possible in soil or in the food chain (Feuilloley, 2004). 

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See also in sourсe #XX -- [ ]

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