کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
629038 1455498 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of nucleating agents and extractants on the structure of polypropylene microporous membranes via thermally induced phase separation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Effects of nucleating agents and extractants on the structure of polypropylene microporous membranes via thermally induced phase separation
چکیده انگلیسی

The effects of nucleating agents and extractants on the microstructure of polypropylene (PP) membranes via thermally induced phase separation were investigated. The nucleating agents were dibenzyl sorbitol, adipic acid and benzoic acid. The extractants were methanol, ethanol, formic acid, acetone, butane, n-hexane, dichloroethane and xylene. The spherulitic size of the membrane greatly decreased and the degree of crystallization and enthalpy of crystallization remarkably increased when adding dibenzyl sorbitol; therefore, dibenzyl sorbitol was a perfect nucleating agent for a PP/soybean oil/dibutyl phthalate (DBP) system. Moreover, with the addition of 5 wt‰ of dibenzyl sorbitol, the membrane had the smallest spherulitic size. It was also proved that ethanol, acetone, butane, n-hexane and dichloroethane are proper extractants for a system of PP/DBP/soybean oil.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 192, Issues 1–3, 10 May 2006, Pages 142-150