INVESTIGATION OF PHOTO-BIODEGRADATION OF STARCH-FILLED POLYETHYLENE FILMS UNDER THE ENVIRONMENTAL CONDITIONS OF TEHRAN

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NAEIMIAN F.; KHOUYLOU F.; SHEYKH NASRIN; AKHAVAN AZAM; HASAN POUR SOROUR; SOHRAB POUR MOSTAFA

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Journal: Iranian Journal of Polymer Science and Technology Year:2007 | Volume:19 | Issue:5 (ISSUE NO. 85) Page(s): 377-385

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Title

INVESTIGATION OF PHOTO-BIODEGRADATION OF STARCH-FILLED POLYETHYLENE FILMS UNDER THE ENVIRONMENTAL CONDITIONS OF TEHRAN

Author(s)

Keywords

PHOTO-BIODEGRADATIONQ3

STARCH-FILLED POLYETHYLENEQ3

ENVIRONMENTAL CONDITIONSQ3

SOIL BURIALQ3

MICROBIAL INVESTIGATIONQ3

Abstract

In this work biodegradable polymers have been formulated for packaging purposes and with a view to reduce the environmental accumulation of plastic waste. Degradation of the polymers under the specific weathering conditions of Tehran was studied. In this work low-density polyethylene (LDPE) was formulated with two wheat starch concentrations, maleic anhydride, glycerol as well as a pro-oxidant system of oleic acid, benzoyl peroxide and ferric stearate. The formulated master batches were mixed by using a laboratory two-roll mill at 190°C.The prepared master batches were mixed with the commercial LDPE to prepare compounds 1 and 2 containing 1.2 and 6.4 percents wheat starch. The LDPE control films as well as the formulated compounds were compression moulded in a hot press at 130oC.The films were subjected to three general conditions of atmospheric exposure, buried in soil and combined conditions of SOIL BURIAL! atmospheric exposure. The three ENVIRONMENTAL CONDITIONS impact upon the formulated and control films were investigated through tensile strength, elongation-at-break, carbonyl index, water absorption, weight loss as well as SEM analysis. The MICROBIAL INVESTIGATION was followed by growing the Penicillium Asymmetrica, which had the main population in microbial flora of the soil, on formulated and control films. The studies revealed that the incorporation of this pro-oxidant system with the addition of 6.4% wheat starch enhance the degradation rate of commercial LDPE films to a significant degree.

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APA: Copy

NAEIMIAN, F., KHOUYLOU, F., SHEYKH, NASRIN, AKHAVAN, AZAM, HASAN POUR, SOROUR, & SOHRAB POUR, MOSTAFA. (2007). INVESTIGATION OF PHOTO-BIODEGRADATION OF STARCH-FILLED POLYETHYLENE FILMS UNDER THE ENVIRONMENTAL CONDITIONS OF TEHRAN. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 19(5 (ISSUE NO. 85)), 377-385. SID. https://sid.ir/paper/404775/en

Vancouver: Copy

NAEIMIAN F., KHOUYLOU F., SHEYKH NASRIN, AKHAVAN AZAM, HASAN POUR SOROUR, SOHRAB POUR MOSTAFA. INVESTIGATION OF PHOTO-BIODEGRADATION OF STARCH-FILLED POLYETHYLENE FILMS UNDER THE ENVIRONMENTAL CONDITIONS OF TEHRAN. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2007;19(5 (ISSUE NO. 85)):377-385. Available from: https://sid.ir/paper/404775/en

IEEE: Copy

F. NAEIMIAN, F. KHOUYLOU, NASRIN SHEYKH, AZAM AKHAVAN, SOROUR HASAN POUR, and MOSTAFA SOHRAB POUR, “INVESTIGATION OF PHOTO-BIODEGRADATION OF STARCH-FILLED POLYETHYLENE FILMS UNDER THE ENVIRONMENTAL CONDITIONS OF TEHRAN,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 19, no. 5 (ISSUE NO. 85), pp. 377–385, 2007, [Online]. Available: https://sid.ir/paper/404775/en

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