کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5209408 1503048 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of the temperature and molecular weight dependent migration of di(2-ethylhexyl) phthalate from isotactic polypropylene composites
ترجمه فارسی عنوان
بررسی مهاجرت وابسته به وزن مولکولی و مولکولی دی (2-اتیل هگزیل) فتالات از ترکیبات پلی پروپیلن ایزوتاکتیک
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
The development of a process for the bioremediation of di(2-ethylhexyl) phthalate (DEHP) blended in various polymers, with a low DEHP release rate, has become an essential mission in the packaging materials industry, especially for blood-component storage materials. Hence, polypropylene and DEHP composites were prepared to evaluate their DEHP release behavior at 90 °C and 25 °C. The physical and chemical properties of the composites were evaluated with various analytical tools. Polypropylene of three different molecular weights was used to compare the different DEHP releasing rates. The incorporation and migration of DEHP significantly followed the crystalline nature of the polymer matrix. The temperature-dependent migration behavior was evaluated by UV-Vis spectroscopy and LC/MS analyses. Among the three different molecular weight PP/DEHP composites, a significantly lower amount of DEHP was released from the higher molecular weight polymer composite due to its enriched crystalline nature. Moreover, the release behavior of DEHP was affected by the molecular weight and crystalline nature of PP, which can strongly hold the plasticizer, and therefore slow down its release. The high molecular weight iPP/DEHP composite may be suitable for blood-component backing materials because of its lower DEHP migration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 113, April 2017, Pages 70-76
نویسندگان
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