کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6588832 | 1423243 | 2018 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evolution of mass distribution in walls of rigid polyurethane foams
ترجمه فارسی عنوان
تکامل توزیع جرم در دیواره های فوم پلی اورتان سفت و سخت
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
In this work, we describe a theoretical model for the simulation of reactive foaming of polyurethane (PU) consisting of three parts - reaction kinetics, foam expansion and wall evolution, which are coupled together. The advantage of this approach is that it provides comprehensive details about the development of PU foam - from the evolution of temperature and foam density to morphology features like bubble size, wall thickness and strut shape at the same time. The performance of the model is evaluated by analysing the model predictions for realistic process conditions and comparing to experimental data. It is demonstrated that the increased viscosity of the reaction mixture will lead to foams with thicker walls. The presented model can serve as a useful tool for the optimization of PU foaming process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 176, 2 February 2018, Pages 50-58
Journal: Chemical Engineering Science - Volume 176, 2 February 2018, Pages 50-58
نویسندگان
Pavel Ferkl, Iveta KrÅ¡ková, Juraj Kosek,