Effect of β-cyclodextrin based polyester on the reduction of DEHP migration in plasticized PVC
کد مقاله : 1343-PHYSCHEM20
احمد رئیسی سارانی *، خلیل فقیهی
هیئت علمی
چکیده مقاله:
Efficient reduction of migration of di(2-ethylhexyl) phthalate (DEHP) is challenging because migration of DEHP poses a serious threat to human health and the ecosystems. In the present study, water-insoluble β-cyclodextrin based polyester (β-CDPE) was synthesized by reaction of β-cyclodextrin with sebacoyl chloride (SCl) as a cross-linker using micro-emulsion method. The β-CDPE was incorporated to PVC/DEHP systems (PVC/DCPEs) as a reactive inhibitor to reduce DEHP migration. DEHP migration tests were carried out for the flexible PVC according to the ISO3826:1993(E) test method and the quantity of migrated DEHP were then determined with UV-vis spectroscopy. It was found that the addition of β-CDPE decreases the levels of DEHP migration from the PVC/DCPEs samples by almost 58.61%. Mechanical properties of PVC/ DCPEs films including the tensile strength (TS), Young’s modulus (YM) and elongation at break (EB) were investigated. All the mechanical data in PVC/DTCs samples were slightly improved in the presence of β-CDPE as compare to PVC/DEHP system
کلیدواژه ها:
β-cyclodextrin based polyester, DEHP migration, plasticized PVC
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