کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5204517 1381964 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Degradation of semi-crystalline PPS bag-filter materials by NO and O2 at high temperature
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Degradation of semi-crystalline PPS bag-filter materials by NO and O2 at high temperature
چکیده انگلیسی

In incineration plants, nitric oxide (NO) and oxygen (O2) are the two major gaseous components, which degrade the mechanical properties of bag-filter media. Based on the experimental results of mass, dimension, morphology, crystallinity, fiber diameter, fiber orientation and fabric strength, changes in mechanical properties of polyphenylene sulfide (PPS) needled fabrics are related to two phenomena, i.e. the crystallization and the degradation of amorphous regions and some parts of crystalline regions. Both processes affect the fabric strength, competing with each other. The relation between strength and crystallinity is divided into two phases: (1) strength is dominated by crystallinity, and (2) strength is dependent on the defects in amorphous regions and some parts of crystalline regions. An increase in NO concentration has a potential to increase the deterioration rates of amorphous and crystalline phases but the crystallization process is unaffected. An increase in O2 concentration leads to enhancement of both crystallization and deterioration.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 91, Issue 8, August 2006, Pages 1637-1644
نویسندگان
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