Biodegradability of polyethylene starch blends in sea water

• Autorzy: Rutkowska M , Heimowska A. , Krasowska K. , Janik H.
• Języki publikacji: EN

Abstrakty

EN

The subject of this work is the degradation of pure polyethylene and modified polyethylene films containing 5% and 8% starch, and polyethylene with pro-degradant additives in the form of "master batch" in amounts of 20%. The degradation of polymer samples was studied under marine exposure conditions in the Baltic Sea. The experiment was also performed in laboratory at the ambient temperature, in a liquid medium containing sea water with sodium azide (NaN3) to evaluate the resistance of polyethylene against hydrolysis. The incubation of polyethylene samples took 20 months. The characteristic parameters of environment were measured during the period of degradation and their influence on degradation of polyethylene was discussed. Changes in weight, tensile strength and morphology of polymer samples were tested during the experiment performed.

Słowa kluczowe

EN

marine environment; alga; sea water; polymer sample; Baltic Sea; fungi; biodegradation; biodegradability; marine exposure condition; microorganism; polyethylene; bacteria; modified polyethylene; environment degradation; plastic; polyethylene starch blend

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2002
• Tom: 11
• Numer: 3
• Opis fizyczny: p.267-271,fig.

Twórcy

autor

Rutkowska M

• Gdynia Maritime Academy, 83 Morska St., 81-225 Gdynia, Poland

autor

Heimowska A.

autor

Krasowska K.

autor

Janik H.

Bibliografia

• 1. DOI Y, KANESAWA Y., TANAHASHI N., KUMAGAI Y., Biodegradation of Microbial Polyesters in the Marine Environment, Polymer Degradation and Stability, 36, 173, 1992.
• 2. ASTM Standards on Environmentally degradable Plastics, ASTM Publication Code Number (PCN): 1993, ,,003-420093-19.
• 3. ALBERTSSON CH., ANDERSSON S. O., KARLSSON S., Polymer Degradation and Stability, 18, 73, 1987.
• 4. ALBERTSSON Ch., J. Appl. Polym. Sci. 22, 3419, 1987.
• 5. ALBERTSSON CH., Karlsson S., Conference Proceedings: Degradable Polymers for the Future, Polymers from Renew able Resource and their Degradation, Department of Polymer Technology, Stockholm, Sweden, 1994.
• 6. BERENSTEDT C, PhD Thesis: Environmental Degradation of Starch-modified Polyethylene: Degradation Products and Long-term Properties, Department of Polymer Technology, The Royal Institute of Technology, Stockholm, Sweden, 1994.
• 7. LENZ W. R., Biodegradable Polymers, in Advances in Polymer Science, Vol. 107, Springer-Velay, Berlin, Heidelberg, pp. 1-40, 1993.
• 8. Polish Standard PN-81/C-89034..
• 9. JANIK H., Macromol. Symp. 130, 179, 1998.
• 10. SYKES P., A Guidebook to Mechanisms in Organic Chemistry, Longman Singapore Publishers, Singapore, pp.194, 1986
• 11. SYKES P., A Guidebook to Mechanisms in Organic Chemistry, Longman Singapore Publishers, Singapore, pp.123, 1986.