کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1252944 971053 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
PTC/NTC Behavior of PVDF Composites Filled with GF and CF
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
PTC/NTC Behavior of PVDF Composites Filled with GF and CF
چکیده انگلیسی
Conductive polyvinylidene fluoride(PVDF) matrix composites filled with graphited fiber(GF) or carbon fiber(CF) were prepared by the melt-mixing method. The breakage and length distribution of the fibers in the polymer matrix were studied by scanning electron microscope(SEM) and optical microscope(OM) observations, respectively. The differences in the positive temperature coefficient(PTC) effects of the composites were mainly attributed to inter-fiber contact ability. The elimination of the negative temperature coefficient(NTC) effect for CF/PVDF composite was because of an increase in the viscosity of the polymer matrix. With the same filler content, CF could be more effective, to eliminate the NTC effect when compared with GF. Addition of 2% CF(mass fraction) in the PVDF composite with 7% GF(mass fraction) could effectively eliminate the NTC phenomenon of the composite.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Research in Chinese Universities - Volume 24, Issue 5, September 2008, Pages 648-652
نویسندگان
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