کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5205617 | 1502934 | 2016 | 10 صفحه PDF | دانلود رایگان |
The properties of vulcanizates based on graphitic nanofiller (GR) with flakes of medium surface area (150-450Â m2/g) were studied for industrial applications. Room-temperature-vulcanized (RTV) silicone rubber was used as the matrix for preparing specimens. AFM micrographs reveal molecular level dispersion of GR with distributed particles in the range of 7-12Â nm. The compressive load at 5Â phr increased by â¼85% in the presence of a magnetic field. As the surface area of GR increases, the compressive modulus at 10Â phr decreases by â¼35% and the actuation displacement at 15Â phr increases by â¼340%. The transitional behavior in the mechanical properties was almost linear up to 300Â m2/g and then fell sharply. The features of the vulcanizates are influenced by the nanoscale effect of the fillers, rapid stress-transfer from the polymer to the filler particles and consistent inter-particle connectivity in the rubber matrix.
Journal: Polymer Testing - Volume 56, December 2016, Pages 369-378